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HP Deskjet 940c Printer support

Blinking Lights on the HP Deskjet 900 Printer Series

  • PrintPrint

Blinking lights

The lights on the front of the product indicate the product status. These lights can be on, off, or blinking (flashing), depending on the status of the product. Blinking lights can indicate error conditions. They might also indicate that the product is starting up or processing a print job.
Following are the different lights and buttons on the product control panel.
Figure 1: Lights and buttons on the control panel
Image: The control panel
1 - Cancel button
2 - Cartridge light
3 - Resume light
4 - Power light
The following sections describe the most common issues related to the light patterns on your product. Find the issue related to the blinking lights pattern you are experiencing, and then follow the steps to resolve the issue.

Issue: All the lights are off

The following light pattern displays on the product control panel:
  • Cartridge light: Off
  • Resume light: Off
  • Power light: Off
Figure 2: All lights are off
Image: All lights are off
Use the following solutions to resolve the issue.

Solution one: Turn on the printer

Press the Power button () to turn the product on.
If the product does not turn on, continue to the next solution.

Solution two: Make sure that the printer is plugged in

Follow these steps to make sure that the power cord is connected to the product and to the electrical outlet.
  1. Check the rear of the product to make sure that the cord from the power adapter is securely connected to the product.
  2. Check the power adapter to make sure that the power cord is securely plugged into it.
  3. Check the electrical outlet to make sure that the power cord is securely plugged into it.
  4. Press the Power button () to turn the product on.
  5. If the product does not turn on, follow the same steps and try a different wall outlet.
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.

Solution three: Service the printer

If you have completed all the steps listed above and are still experiencing a problem, continue to the Service the printer section at the end of this document.

Issue: The Power light is on

The following light pattern displays on the product control panel:
  • Cartridge light: Off
  • Resume light: Off
  • Power light: On
Figure 3: The Power light is on
Image: The Power light is on
    The product is ready to process a print job.
No action is necessary, as the product is ready to process a print job.

Issue: The Power light blinks

The following light pattern displays on the product control panel:
  • Cartridge light: Off
  • Resume light: Off
  • Power light: Blinking
Figure 4: The Power light blinks
Image: The Power light blinks
    The product is printing, or there might be a software issue.
Try these solutions in the order presented to resolve the issue.

Solution one: Wait for the print job to finish

If the product is currently processing a print job, wait for the print job to finish. If the product is not printing, continue to the next solution.

Solution two: Turn the printer off and on again

Turn the product off, and then turn the product back on to resume printing.
  1. Press the Power button () to turn the product off.
  2. If the product will not turn off, disconnect the power cord from the outlet, and then connect it.
  3. Press the Power button () to turn the product on.
  4. Try to print again.

Issue: The Power light and the Resume light are on

The following light pattern displays on the product control panel:
  • Cartridge light: Off
  • Resume light: On
  • Power light: On
Figure 5: The Power light and the Resume light are on
Image: The Power light and the Resume light are on
    The rear access door or the duplexer is missing or unlocked.
Use one of the following methods to reattach either the rear access door or the duplexer. If you have a duplexer on your product, you will not have a rear access door.
  1. Turn the knob on the rear access door counter-clockwise to release it.
    Figure 6: Release the rear access door
    Image of turning the knob on the rear access door counter-clockwise to release it
  2. Pull the door toward you to remove it.
  3. Reattach the rear access door to the rear of the product.
  4. Turn the knob clockwise to lock the door into place.
  1. Press the buttons on each side of the duplexer to release it.
    Figure 7: Press the buttons to release the duplexer
    Image of pressing the buttons on each side of the duplexer to release it
  2. Remove the duplexer from the product.
  3. Reattach the duplexer. Press the buttons on each side of the duplexer, and then gently push the duplexer back into the rear of the product until it snaps firmly into place.
    Figure 8: Reattach the duplexer
    Image of reattaching the duplexer
  4. Repeat the steps to reattach the duplexer if the lights remain on.

Issue: The Power light is on and the Resume light blinks

The following light pattern displays on the product control panel:
  • Cartridge light: Off
  • Resume light: Blinking
  • Power light: On
Figure 9: The Power light is on and the Resume light blinks
Image: The Power light is on and the Resume light blinks
    There are several possible causes:
How do I resolve this issue? The following sections describe the most common messages that might display on the computer in combination with a blinking Resume light. To resolve the issue, find the message that displays on your computer (from the following choices), and then expand that section for solutions.
The Resume light blinks and a ‘Door Open’ message might display on the computer.
    The cover on the product is open.
  1. If the cover on the product is open, close it.
  2. Press the Resume button () to continue printing.
The Resume light blinks and an ‘Out of paper’ message might display on the computer.
    The product is out of paper.
Follow these steps to load paper in the product.
  1. Insert the paper in the paper tray, and then align it squarely against the paper guide.
  2. Adjust the paper width guide so that it fits snugly against the paper.
    Image: Loading the product with paper
  3. Press the Resume button () to continue the print job.
The Resume light blinks and a ‘Paper jam’ message might display on the computer.
    There is a paper jam in the product.
Solution one: Clear the paper jam
Follow these steps in the order presented clear any jammed paper.
Step one: Remove loose paper from the tray
Remove any loose sheets of paper from the input tray and the output tray.
CAUTION:Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism.
Step two: Clear the paper jam from the rear of the printer
Your product will have either a rear access door or a two-sided printing accessory (duplexer). Choose one of the following methods to clear the jam from the rear of the product.
Method one: Remove the rear access door
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Turn the knob on the rear access door counter-clockwise to release the door, and then pull the door toward you to remove it.
    Figure 10: Remove the rear access door
    Image: Removing the rear access door
  4. Gently pull out any jammed paper from the rear of the product.
    Figure 11: Remove jammed paper
    Image: Removing jammed paper
  5. Reattach the rear access door, and then turn the knob on the door clockwise to lock it into place.
Method two: Remove the duplexer
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Press the buttons on each side of the duplexer, and then pull it toward you to remove it.
    Figure 12: Remove the duplexer
    Image:  Pressing the buttons on each side of the duplexer
  4. Gently remove any jammed paper from the rear of the product.
    Figure 13: Remove jammed paper
    Image: Removing jammed paper
  5. Reattach the duplexer to the rear of the product and, push it inward until it snaps firmly into place. (Do not press the buttons on the ends of the duplexer when you reattach it.)
  6. Press the button on top of the duplexer, and then open the door.
    Figure 14: Open the duplexer door
    Image: Opening the duplexer door
  7. Gently remove any jammed paper from inside the duplexer.
  8. Close the duplexer door.
Step three: Clear the paper jam from the front of the printer
  1. Make sure that the power cord is disconnected from the rear of the product. If the power cord is not disconnected, disconnect it now.
  2. Open the cover on the product.
    Figure 15: Open the cover on the product
    Image: Opening the cover on the product
  3. Carefully remove any jammed paper from the front of the product.
    Figure 16: Remove the jam from the front of the product
    Image: Removing jammed paper from the front of the product
  4. Close the cover on the product.
  5. Reconnect the power cord to the rear of the product.
Step four: Make sure that the carriage moves freely
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product. The carriage might try to move into the access area. If so, allow the carriage to move to that position.
    Figure 17: Open the cover on the product
    Image: Opening the cover on the product
  3. With the product turned on, disconnect the power cord from the rear of the product.
  4. Unplug the power cord from the power source or electrical outlet.
    WARNING:You must unplug the power cord to move the carriage by hand and reset the paper feed mechanism without risk of electrical shock.
  5. Check for any paper or objects that might be restricting the carriage, and then carefully remove any paper or objects that you find.
    CAUTION:If the paper tears when you remove it from the rollers, check the rollers for torn pieces of paper that might remain inside the product. If pieces of paper remain in the product, more paper jams can occur.
  6. Reach inside the product, and then manually move the carriage.
    • If the carriage is stuck on the right side of the product, move the carriage to the left side of the product.
    • If the carriage is stuck on the left side of the product, move the carriage to the right side of the product.
    • If the carriage is stuck in the middle of the product, move the carriage to the right side of the product.
  7. Remove any loose paper or obstructions found.
  8. Make sure that the carriage can move freely across the width of the product. Gently push the carriage to the left and then to the right.
  9. Close the cover on the product.
  10. Reconnect the power cord to the rear of the product.
  11. Plug the power cord back into the electrical outlet.
  12. Press the Power button () to turn on the product.
Step five: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution two: Clean the paper rollers
Dust, paper fiber, and other debris might accumulate on the paper feed rollers and cause paper jams and paper feed issues. Follow these steps to clean the paper feed rollers.
Step one: Clean the paper rollers
Use one of the following methods to clean the paper rollers.
Method one: Remove the rear access door to clean the rollers
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Turn the knob on the rear access door counter-clockwise to release the door.
  4. Remove the rear access door.
    Figure 18: Remove the rear access door
    Image: Removing the rear access door
  5. Dampen a lint-free cloth with distilled or bottled water.
  6. Wipe the rubber paper feed rollers with the damp cloth. Carefully rotate the rollers up to clean all the way around.
    Figure 19: Rubber paper feed rollers
    Image: Rubber paper feed rollers in the product
  7. Allow the rollers to dry completely, and then reattach the rear access door.
  8. Reconnect the power cord to the rear of the product.
  9. If the HP product does not turn on, press the Power button () to turn it on.
Method two: Remove the duplexer to clean the paper rollers
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Press the buttons on each side of the duplexer, and then pull the duplexer toward you to remove it.
    Figure 20: Remove the duplexer
    Image:  Pressing the buttons on each side of the duplexer
  4. Dampen a lint-free cloth with distilled or bottled water.
  5. Wipe the rubber paper feed rollers with the damp cloth. Carefully rotate the rollers up to clean all the way around.
    Figure 21: Rubber paper feed rollers
    Image: Rubber paper feed rollers in the product
  6. Allow the rollers to dry completely, and then reattach the duplexer to the rear of the product.
  7. Reconnect the power cord to the rear of the product.
  8. If the HP product does not turn on, press the Power button () to turn it on.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
How to print a self-test report
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution three: Perform a power reset
Follow these steps to reset the product.
Step one: Perform a power reset
  1. Press the Power button () to turn on the product.
  2. With the product turned on, disconnect the power cord from the rear of the product.
  3. Unplug the power cord from the wall outlet.
  4. Wait at least 15 seconds.
  5. Plug the power cord back into the wall outlet.
  6. Reconnect the power cord to the rear of the product.
  7. If the product does not turn on by itself, press the Power button () to turn it on.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
How to print a self-test report
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution four: Service the printer
If you have completed all the steps listed above and are still experiencing a problem, continue to the Service the printer section at the end of this document.
The Resume light blinks and a ‘Carriage jam’ or ‘Print carriage is stuck’ message might display on the computer.
    The carriage is stalled or jammed.
Follow these solutions in the order presented to resolve the issue.
Solution one: Clear the paper jam
Jammed paper inside the product can cause the carriage to stall. Follow these steps to clear any jammed paper.
Step one: Remove loose paper from the tray
Remove any loose sheets of paper from the input tray and the output tray.
CAUTION:Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism.
Step two: Clear the paper jam from the rear of the printer
Your product will have either a rear access door or a two-sided printing accessory (duplexer). Use one of the following methods to clear the jam from the rear of the product.
Method one: Clear the jam through the rear access door
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Turn the knob on the rear access door counter-clockwise to release the door.
  4. Remove the rear access door.
    Figure 22: Remove the rear access door
    Image: Removing the rear access door
  5. Gently pull out the any jammed paper from the rear of the product.
    Figure 23: Remove jammed paper
    Image: Removing jammed paper
  6. Reattach the rear access door, and then turn the knob on the door clockwise to lock it into place.
Method two: Remove the duplexer to clear the paper jam from the rear of the printer
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Press the buttons on each side of the duplexer, and then pull it toward you to remove it.
    Figure 24: Remove the duplexer
    Image:  Pressing the buttons on each side of the duplexer
  4. Gently remove the jammed paper from the product.
    Figure 25: Remove jammed paper
    Image: Removing jammed paper
  5. Gently reattach the duplexer to the rear of the product until it snaps firmly into place. (Do not press the buttons on the ends of the duplexer when you reattach it.)
  6. Press the button on top of the duplexer, and then open the door.
    Figure 26: Open the duplexer door
    Image: Opening the duplexer door
  7. Gently remove any jammed paper from inside the duplexer.
  8. Close the duplexer door.
Step three: Clear the paper jam from the front of the printer
  1. Open the cover on the product.
    Figure 27: Open the cover on the product
    Image: Opening the cover on the product
  2. Remove jammed paper from the front of the product.
    Figure 28: Remove the jam from the front of the product
    Image: Removing jammed paper from the front of the product
  3. Close the cover on the product.
  4. Load paper in the paper tray.
  5. Reconnect the power cord to the electrical outlet.
Step four: Print a self-test report
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution two: Make sure the carriage can move freely
Use the following steps to check that the carriage can move freely in the product.
Step one: Check the carriage path
Follow these steps to check the carriage path.
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product. The carriage might try to move into the access area. If so, allow the carriage to move to that position.
    Figure 29: Open the cover on the product
    Image: Opening the cover on the product
  3. With the product turned on, disconnect the power cord from the rear of the product.
  4. Unplug the power cord from the power source or electrical outlet.
    WARNING:You must unplug the power cord to move the carriage by hand and reset the paper feed mechanism without risk of electrical shock.
  5. Check for any paper or objects that might be stopping the carriage, and then carefully remove any paper or objects that you find.
    CAUTION:If the paper tears when you remove it from the rollers, check the rollers for torn pieces of paper that might remain inside the product. If pieces of paper remain in the product, more paper jams can occur.
  6. Reach inside the product, and then manually move the carriage.
    • If the carriage is stuck on the right side of the product, move the carriage to the left side of the product.
    • If the carriage is stuck on the left side of the product, move the carriage to the right side of the product.
    • If the carriage is stuck in the middle of the product, move the carriage to the right side of the product.
  7. Remove any loose paper or obstructions found.
  8. Make sure that the carriage can move freely across the width of the product. Gently push the carriage to the left and then to the right.
  9. Close the cover on the product.
  10. Connect the power cord to the rear of the product.
  11. Plug the power cord back into the electrical outlet.
  12. Press the Power button () to turn on the product.
Step two: Print a self-test report
Choose one of the following options to print a self-test report.
How to print a self-test report
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution three: Remove and then reinstall the cartridges
Improper placement or installation of the cartridges can cause a carriage jam. Follow these steps to remove and then reinstall the cartridges.
Step one: Remove the cartridges
Follow these steps to remove the cartridges.
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product.
    Figure 30: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch, and then slide the cartridge out of its slot.
    Figure 31: Open the cartridge latch to remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
  4. Repeat the previous steps to remove the other cartridge.
  5. Look under and around the carriage, and then remove any obstructions.
Step two: Reinsert the cartridges
Follow these steps to reinsert cartridges.
  1. Hold the cartridge with the HP logo facing up.
  2. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 32: Reinsert the cartridge
    Image: Reinserting the cartridge
  3. Close the cartridge latch.
  4. Repeat the previous steps to insert the other cartridge.
  5. Close the cover on the product.
Step three: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
How to print a self-test report
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution four: Plug the printer directly into a wall outlet
Follow these steps to make sure that the product is connected to a suitable power source.
Step one: Plug the printer directly into a wall outlet
  1. Disconnect the power cord from the rear of the product.
  2. Disconnect the power cord from any power strip or surge protector, and then plug it directly into the wall outlet.
  3. Reconnect the power cord to the rear of the product.
  4. Press the Power button () to turn on the product.
NOTE:If the product prints when plugged directly into a wall outlet, the power strip or surge protector might not be allowing enough voltage to reach the product.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
How to print a self-test report
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution five: Perform a power reset
Follow these steps to reset the product.
Step one: Perform a power reset
Follow these steps to reset the product.
  1. Press the Power button () to turn on the product.
  2. With the product turned on, disconnect the power cord from the rear of the product.
  3. Unplug the power cord from the wall outlet.
  4. Wait at least 15 seconds.
  5. Plug the power cord back into the wall outlet.
  6. Reconnect the power cord to the rear of the product.
  7. If the product does not turn on by itself, press the Power button () to turn it on.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
How to print a self-test report
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.
Solution six: Service the printer
If you have completed all the steps listed above and are still experiencing a problem, continue to the Service the printer section at the end of this document.

Issue: The Power light and the Resume light blink alternately

The following light pattern displays on the product control panel:
  • Cartridge light: Off
  • Resume light: Blinking
  • Power light: Blinking
Figure 33: The Power light and the Resume light blink alternately
Image: The Power light and the Resume light blink alternately
    If the paper will not feed, there might be a paper jam.
Use the following solutions to resolve the issue.

Solution one: Feed the paper

  1. Press the Resume button () to feed the paper.
  2. Resume printing.
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.

Solution two: Clear the paper jam

Follow these steps in the order presented to clear the paper jam.
Step one: Remove loose paper from the tray
Remove any loose sheets of paper from the input tray and the output tray.
CAUTION:Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism.
Step two: Clear the paper jam from the rear of the printer
Your product will have either a rear access door or a two-sided printing accessory (duplexer). Use one of the following methods to clear the jam from the rear of the product.
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Turn the knob on the rear access door counter-clockwise to release the door.
  4. Remove the rear access door.
    Figure 34: Remove the rear access door
    Image: Removing the rear access door
  5. Gently pull out the any jammed paper from the rear of the product.
    Figure 35: Remove jammed paper
    Image: Removing jammed paper
  6. Reattach the rear access door, and then turn the knob on the door clockwise to lock it into place.
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Press the buttons on each side of the duplexer, and then pull it toward you to remove it.
    Figure 36: Press the buttons on each side of the duplexer to release it from the product
    Image:  Pressing the buttons on each side of the duplexer
  4. Gently remove the jammed paper from the product.
    Figure 37: Remove jammed paper
    Image: Removing jammed paper
  5. Reattach the duplexer to the rear of the product. Make sure the door snaps firmly into place. (Do not press the buttons on the ends of the duplexer when you reattach it.)
  6. Press the button on top of the duplexer to open the duplexer door.
    Figure 38: Open the duplexer door
    Image: Opening the duplexer door
  7. Carefully remove any jammed paper from inside the duplexer.
  8. Close the duplexer door.
Step three: Clear the paper jam from the front of the printer
  1. Open the cover on the product.
    Figure 39: Open the cover on the product
    Image: Opening the cover on the product
  2. Carefully remove any jammed paper from the front of the product.
    Figure 40: Remove the jam from the front of the product
    Image: Removing jammed paper from the front of the product
  3. Close the cover on the product.
  4. Reconnect the power cord to the electrical outlet.
Step four: Make sure the carriage can move freely
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product. The carriage might try to move into the access area. If so, allow the carriage to move to that position.
    Figure 41: Open the cover on the product
    Image: Opening the cover on the product
  3. With the product turned on, disconnect the power cord from the rear of the product.
  4. Unplug the power cord from the power source or electrical outlet.
    WARNING:You must unplug the power cord to move the carriage by hand and reset the paper feed mechanism without risk of electrical shock.
  5. Check for any paper or objects that might be stopping the carriage.
    CAUTION:If the paper tears when you remove it from the rollers, check the rollers for torn pieces of paper that might remain inside the product. If pieces of paper remain in the product, more paper jams can occur.
  6. Reach inside the product through the paper output tray, and then manually move the carriage.
    • If the carriage is stuck on the right side of the product, move the carriage to the left side of the product.
    • If the carriage is stuck on the left side of the product, move the carriage to the right side of the product.
    • If the carriage is stuck in the middle of the product, move the carriage to the right side of the product.
  7. Remove any loose paper or obstructions found.
  8. Make sure that the carriage can move freely across the width of the product. Gently push the carriage to the left and then to the right.
  9. Close the cover on the product.
  10. Connect the power cord to the rear of the product.
  11. Plug the power cord back into the electrical outlet.
  12. Press the Power button () to turn on the product.
Step five: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
Choose one of the following options to print a self-test report.
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.

Solution three: Clean the paper rollers

Follow these steps to clean the paper rollers.
Step one: Clean the paper rollers
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Remove the rear access door or duplexer to access the paper rollers.
    NOTE:Your product will have either a rear access door or a duplexer.
    Remove the rear access door
    Turn the knob on the rear access door counter-clockwise to release the door, and then pull the door toward you to remove it
    Figure 42: Remove the rear access door
    Image: Removing the rear access door
    Remove the duplexer
    Press the buttons on each side of the duplexer, and then pull the duplexer toward you to remove it.
    Figure 43: Remove the duplexer
    Image:  Pressing the buttons on each side of the duplexer
  4. Dampen a lint-free cloth with distilled or bottled water.
  5. Wipe the rubber paper feed rollers with the damp cloth. Carefully rotate the rollers up to clean all the way around.
    Figure 44: Rubber paper feed rollers
    Image: Rubber paper feed rollers in the product
  6. Allow the rollers to dry completely, and then reattach the rear access door or duplexer to the rear of the product.
  7. If your product does not have a duplexer, reattach the rear access door to the rear of the product. Turn the knob on the door clockwise to lock it into place.
  8. If your product has a duplexer, gently reattach the duplexer to the rear of the product. Make sure the duplexer snaps firmly into place. (Do not press the buttons on the ends of the duplexer when you reattach it.
  9. Reconnect the power cord to the rear of the product.
  10. If the HP product does not turn on, press the Power button () to turn it on.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.

Solution four: Perform a power reset

Follow these steps to reset the product.
Step one: Perform a power reset
  1. Press the Power button () to turn on the product.
  2. With the product turned on, disconnect the power cord from the rear of the product.
  3. Unplug the power cord from the wall outlet.
  4. Wait at least 15 seconds.
  5. Plug the power cord back into the wall outlet.
  6. Reconnect the power cord to the rear of the product.
  7. If the product does not turn on by itself, press the Power button () to turn it on.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.

Solution five: Service the printer

If you have completed all the steps listed above and are still experiencing a problem, continue to the Service the printer section at the end of this document.

Issue: The Power light and the Resume light blink simultaneously

The following light pattern displays on the product control panel:
  • Cartridge light: Off
  • Resume light: Blinking
  • Power light: Blinking
Figure 45: The Power light and the Resume light blink simultaneously
Image: The Power light and the Resume light blink simultaneously
    The carriage might be stuck.
Follow these solutions to resolve the issue.

Solution one: Clear the paper jam

Follow these steps in the order presented to resolve the paper jam.
Step one: Remove loose paper from the tray
Remove any loose sheets of paper from the input tray and the output tray.
CAUTION:Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism.
Step two: Clear the paper jam from the rear of the printer
Your product will have either a rear access door or a two-sided printing accessory (duplexer). Choose one of the following methods to clear the jam from the rear of the product.
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Turn the knob on the rear access door counter-clockwise to release the door, and then pull the door toward you to remove it.
    Figure 46: Remove the rear access door
    Image: Removing the rear access door
  4. Gently pull out any jammed paper from the rear of the product.
    Figure 47: Remove jammed paper
    Image: Removing jammed paper
  5. Reattach the rear access door, and then turn the knob on the door clockwise to lock it into place.
  1. Press the Power button () to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Press the buttons on each side of the duplexer, and then pull it toward you to remove it.
    Figure 48: Remove the duplexer
    Image:  Pressing the buttons on each side of the duplexer
  4. Gently remove any jammed paper from the rear of the product.
    Figure 49: Remove jammed paper
    Image: Removing jammed paper
  5. Reattach the duplexer to the rear of the product and, push it inward until it snaps firmly into place. (Do not press the buttons on the ends of the duplexer when you reattach it.)
  6. Press the button on top of the duplexer, and then open the door.
    Figure 50: Open the duplexer door
    Image: Opening the duplexer door
  7. Gently remove any jammed paper from inside the duplexer.
  8. Close the duplexer door.
Step three: Clear the paper jam from the front of the printer
  1. Open the cover on the product.
    Figure 51: Open the cover on the product
    Image: Opening the cover on the product
  2. Remove jammed paper from the front of the product.
    Figure 52: Remove the jam from the front of the product
    Image: Removing jammed paper from the front of the product
  3. Close the cover on the product.
  4. Load paper in the paper tray.
  5. Reconnect the power cord to the electrical outlet.
Step four: Print a self-test report
Choose one of the following options to print a self-test report.
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.

Solution two: Make sure the carriage can move freely

Use the following steps to check that the carriage can move freely in the product.
Step one: Check the carriage path
Follow these steps to check the carriage path.
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product. The carriage might try to move into the access area. If so, allow the carriage to move to that position.
    Figure 53: Open the cover on the product
    Image: Opening the cover on the product
  3. With the product turned on, disconnect the power cord from the rear of the product.
  4. Unplug the power cord from the power source or electrical outlet.
    WARNING:You must unplug the power cord to move the carriage by hand and reset the paper feed mechanism without risk of electrical shock.
  5. Check for any paper or objects that might be stopping the carriage.
    CAUTION:If the paper tears when you remove it from the rollers, check the rollers for torn pieces of paper that might remain inside the product. If pieces of paper remain in the product, more paper jams can occur.
  6. Reach inside the product through the paper output tray, and then manually move the carriage.
    • If the carriage is stuck on the right side of the product, move the carriage to the left side of the product.
    • If the carriage is stuck on the left side of the product, move the carriage to the right side of the product.
    • If the carriage is stuck in the middle of the product, move the carriage to the right side of the product.
  7. Remove any loose paper or obstructions found.
  8. Make sure that the carriage can move freely across the width of the product. Gently push the carriage to the left and then to the right.
  9. Close the cover on the product.
  10. Connect the power cord to the rear of the product.
  11. Plug the power cord back into the electrical outlet.
  12. Press the Power button () to turn on the product.
Step two: Print a self-test report
Choose one of the following options to print a self-test report.
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.

Solution three: Remove and then reinstall the cartridges

Improper placement or installation of the cartridges can cause a carriage jam. Follow these steps to remove and then reinstall the cartridges.
Step one: Remove the cartridges
Follow these steps to remove the cartridges.
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product.
    Figure 54: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch, and then slide the cartridge out of its slot.
    Figure 55: Open the cartridge latch to remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
  4. Repeat the previous steps to remove the other cartridge.
  5. Look under and around the carriage, and then remove any obstructions.
Step two: Reinsert the cartridges
Follow these steps to reinsert cartridges.
  1. Hold the cartridge with the HP logo facing up.
  2. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 56: Reinsert the cartridge
    Image: Reinserting the cartridge
  3. Close the cartridge latch.
  4. Repeat the previous steps to insert the other cartridge.
  5. Close the cover on the product.
Step three: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.

Solution four: Plug the printer directly into a wall outlet

Follow these steps to make sure that the product is connected to a suitable power source.
Step one: Plug the printer directly into a wall outlet
  1. Disconnect the power cord from the rear of the product.
  2. Disconnect the power cord from any power strip or surge protector, and then plug it directly into the wall outlet.
  3. Reconnect the power cord to the rear of the product.
  4. Press the Power button () to turn on the product.
NOTE:If the product prints when plugged directly into a wall outlet, the power strip or surge protector might not be allowing enough voltage to reach the product.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.

Solution five: Perform a power reset

Follow these steps to reset the product.
Step one: Perform a power reset
Follow these steps to reset the product.
  1. Press the Power button () to turn on the product.
  2. With the product turned on, disconnect the power cord from the rear of the product.
  3. Unplug the power cord from the wall outlet.
  4. Wait at least 15 seconds.
  5. Plug the power cord back into the wall outlet.
  6. Reconnect the power cord to the rear of the product.
  7. If the product does not turn on by itself, press the Power button () to turn it on.
Step two: Print a self-test report
Print a self-test report to make sure that the hardware functions correctly.
Choose one of the following options to print a self-test report.
Option one: Print a self-test report from the control panel
  1. Press and hold the Power button ().
  2. While holding the Power button, press the Resume button () four times.
  3. Release the Power button (). The self-test report prints.
Option two: Print a self-test report from HP Toolbox
  1. Open the HP Toolbox:
      Click Start, click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
      Click the Windows icon (), click All Programs, click HP, click the folder for your HP product, and then click the icon for your HP product.
    NOTE:You can also open the HP product software from your computer desktop: double-click the icon for your HP product.
  2. On the Printer Services tab, click Print a Test Page. The self-test report prints.
  • If these steps resolved the issue, and the test page prints, there is no need to continue troubleshooting.
  • If the issue persists, continue with the next solution.
  • If the test page does not print, continue with the next solution.

Solution six: Service the printer

If you have completed all the steps listed above and are still experiencing a problem, continue to the Service the printer section at the end of this document.

Issue: The Power light and the Cartridge light are on

The following light pattern displays on the product control panel:
  • Cartridge light: On
  • Resume light: Off
  • Power light: On
Figure 57: The Power light and the Cartridge light are on
Image: The Power light and the Cartridge light are on
    The product needs to be reset.
Follow these steps to reset the product.
  1. Press the Power button () to turn on the product.
  2. With the product turned on, disconnect the power cord from the rear of the product.
  3. Unplug the power cord from the wall outlet.
  4. Wait at least 15 seconds.
  5. Plug the power cord back into the wall outlet.
  6. Reconnect the power cord to the rear of the product.
  7. If the product does not turn on by itself, press the Power button () to turn it on.

The Power light, the Resume light and the Cartridge lights blink alternately

The following light pattern displays on the product control panel:
  • Cartridge light: Blinking
  • Resume light: Blinking
  • Power light: Blinking
Figure 58: The Power light, the Resume light and the Cartridge light blink alternately
Image:  The Power light, the Resume light and the Cartridge light blink alternately
    The product needs to be restarted.
Follow these steps to resolve the issue.
  1. Press the Power button () to turn off the product.
  2. Press the Power button () to turn on the product.

Issue: The Power light is on and the Cartridge light blinks

The following light pattern displays on the product control panel:
  • Cartridge light: Blinking
  • Resume light: Off
  • Power light: On
Figure 59: The Power light is on and the Cartridge light blinks
Image: The Power light is on and the Cartridge light blinks
    There is a problem with one or both cartridges.
The yellow arrow on the carriage points to one of five Cartridge Status icons. Each icon indicates a specific issue with one of the cartridges. Follow these steps to determine the cartridge issue, and then move to the next section to find solutions to resolve the issue.
  1. Open the cover on the product. The carriage moves into the access area. Wait until the carriage is idle and silent before continuing.
    Figure 60: Open the cover on the product
    Image: Opening the cover on the product
  2. Locate the yellow arrow on top of the carriage. The yellow arrow points to a Cartridge error icon. Each icon represents a specific issue.
    Use the following figure to identify the cartridge issue.
    Figure 61: Cartridge error icons
    1 - Tri-color Cartridge Problem icon
    2 - Black Cartridge Problem icon
    3 - Tri-color Cartridge Low-ink icon
    4 - Black Cartridge Low-ink icon
    5 - Cartridges OK icon
    6 - Yellow indicator arrow
  3. Once you have determined the cartridge issue, proceed to the following sections for solutions to resolve the issue.
How do I resolve this issue? The following sections include solutions to resolve the cartridge issue. Determine the issue, based on the icon the yellow arrow points to, and then expand that section for solutions.
IMPORTANT: Before you begin, make sure that the cartridges are compatible with your product.
To purchase cartridges or check cartridge compatibility for your printer, go to HP Home & Home Office Store (US only), and then click Ink Toner & Paper.
If you are located outside of the US, follow these steps to purchase cartridges using HP SureSupply.
  1. Scroll to the bottom of the page and make sure that the country/region location is correct.
Genuine HP cartridges can also be purchased from other retailers.
The Power light is on and the Cartridge light blinks. The yellow arrow points to the Tri-color Cartridge Problem icon.
Cause: There is a problem with the tri-color cartridge.
Follow each solution in the order presented to resolve the issue.
Solution one: Remove and then reinsert the problem cartridge
Follow these steps to remove and reinsert the tri-color cartridge to make sure that it is seated correctly.
Step one: Remove the cartridge
Follow these steps to remove the tri-color cartridge.
NOTE:The tri-color cartridge is located in the left carriage slot.
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product.
    Figure 62: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch, and then slide the cartridge out of its slot.
    Figure 63: Open the cartridge latch and remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
Step two: Reinsert the cartridge
Follow these steps to reinsert the tri-color cartridge.
  1. Hold the cartridge with the HP logo facing up.
  2. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 64: Reinsert the cartridge
    Image: Reinserting the cartridge
  3. Close the cartridge latch.
  4. Close the cover on the product.
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.
Solution two: Replace the problem cartridge
Follow these steps to replace the tri-color cartridge, and then align the cartridges.
Step one: Replace the cartridge
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product, and then wait for the carriage to move to the center of the product.
    Figure 65: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch and then slide the cartridge out of its slot.
    Figure 66: Open the cartridge latch to remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
  4. Remove the new cartridge from its package, and then carefully remove the protective tape.
    Figure 67: Remove tape from the cartridge
    Image of the cartridge
    1 - Protective tape
    2 - Copper contacts (Do not touch)
    3 - Ink nozzles (Do not touch)
    NOTE:Do not touch the copper-colored electrical contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.
    Figure 68: Do not touch the electrical contacts or the ink nozzles
    Image: Do not touch the electrical contacts
  5. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 69: Insert the cartridge
    Image: Inserting the cartridge
  6. Close the cartridge latch.
  7. Close the cover on the product.
Step two: Align the cartridges
Follow these steps to align the cartridges.
    1. Click Start, and then click Printers and Faxes.
    2. Click the icon for your product, and then click File and Properties.
    3. Click the Services tab, and then click Align to print an alignment page.
    1. Click Start, and then click Control Panel.
    2. Double-click Printers.
    3. Click the icon for your product, and then click File and Properties.
    4. Click the Services tab, and then click Align to print an alignment page.
The Power light is on and the Cartridge light blinks. The yellow arrow points to the Black Cartridge Problem icon.
Cause: There is a problem with the black cartridge.
Follow these solutions in the order presented to resolve the issue.
Solution one: Remove and then reinsert the black cartridge
Follow these steps to remove and reinsert the black cartridge to make sure that it is seated correctly.
NOTE:The black cartridge is located in the right carriage slot.
Step one: Remove the cartridge
Follow these steps to remove the black cartridge.
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product.
    Figure 70: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch, and then slide the cartridge out of its slot.
    Figure 71: Open the cartridge latch to remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
Step two: Reinsert the cartridge
Follow these steps to reinsert cartridges.
  1. Hold the cartridge with the HP logo facing up.
  2. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 72: Reinsert the cartridge
    Image: Reinserting the cartridge
  3. Close the cartridge latch.
  4. Close the cover on the product.
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.
Solution two: Replace the problem cartridge
Follow these steps to replace the black cartridge, and then align the cartridges.
Step one: Replace the cartridge
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product, and then wait for the carriage to move to the center of the product.
    Figure 73: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch, and then slide the cartridge out of its slot.
    Figure 74: Open the cartridge latch to remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
  4. Remove the new cartridge from its package, and then carefully remove the protective tape.
    Figure 75: Remove the tape from the cartridge
    Image of the cartridge
    1 - Protective tape
    2 - Copper contacts (Do not touch)
    3 - Ink nozzles (Do not touch)
    NOTE:Do not touch the copper-colored electrical contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.
    Figure 76: Do not touch the electrical contacts or the ink nozzles
    Image: Do not touch the electrical contacts
  5. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 77: Insert the cartridge
    Image: Inserting the cartridge
  6. Close the cartridge latch.
  7. Close the cover on the product.
Step two: Align the cartridges
Follow these steps to align the cartridges.
    1. Click Start, and then click Printers and Faxes.
    2. Click the icon for your product, and then click File and Properties.
    3. Click the Services tab, and then click Align to print an alignment page.
    1. Click Start, and then click Control Panel.
    2. Double-click Printers.
    3. Click the icon for your product, and then click File and Properties.
    4. Click the Services tab, and then click Align to print an alignment page.
The Power light is on and the Cartridge light blinks. The yellow arrow points to the Tri-color Cartridge Low-ink icon.
Cause: The tri-color cartridge is low on ink.
Follow these steps to replace the tri-color cartridge, and then align the cartridges.
NOTE:The tri-color cartridge is located in the left carriage slot.
Step one: Replace the cartridge
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product, and then wait for the carriage to move to the center of the product.
    Figure 78: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch, and then slide the cartridge out of its slot.
    Figure 79: Open the cartridge latch to remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
  4. Remove the new cartridge from its package, and then carefully remove the protective tape.
    Figure 80: Remove the tape from the cartridge
    Image of the cartridge
    1 - Protective tape
    2 - Copper contacts (Do not touch)
    3 - Ink nozzles (Do not touch)
    NOTE:Do not touch the copper-colored electrical contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.
    Figure 81: Do not touch the electrical contacts or the ink nozzles
    Image: Do not touch the electrical contacts
  5. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 82: Insert the cartridge
    Image: Inserting the cartridge
  6. Close the cartridge latch.
  7. Close the cover on the product.
Step two: Align the cartridges
Follow these steps to align the cartridges.
    1. Click Start, and then click Printers and Faxes.
    2. Click the icon for your product, and then click File and Properties.
    3. Click the Services tab, and then click Align to print an alignment page.
    1. Click Start, and then click Control Panel.
    2. Double-click Printers.
    3. Click the icon for your product, and then click File and Properties.
    4. Click the Services tab, and then click Align to print an alignment page.
The Power light is on and the Cartridge light blinks. The yellow arrow points to the Black Cartridge Low-ink icon.
Cause: The black cartridge is low on ink.
Follow these steps to replace the black cartridge, and then align the cartridges.
NOTE:The black cartridge is located in the right carriage slot.
Step one: Replace the cartridge
  1. Press the Power button () to turn on the product.
  2. Open the cover on the product, and then wait for the carriage to move to the center of the product.
    Figure 83: Open the cover on the product
    Image: Opening the cover on the product
  3. Open the cartridge latch, and then slide the cartridge out of its slot.
    Figure 84: Open the cartridge latch to remove the cartridge
    Image: Opening the cartridge latch and removing the cartridge
  4. Remove the new cartridge from its package, and then carefully remove the protective tape.
    Figure 85: Remove the tape from the cartridge
    Image of the cartridge
    1 - Protective tape
    2 - Copper contacts (Do not touch)
    3 - Ink nozzles (Do not touch)
    NOTE:Do not touch the copper-colored electrical contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.
    Figure 86: Do not touch the electrical contacts or the ink nozzles
    Image: Do not touch the electrical contacts
  5. Slide the cartridge into its slot, and then press it toward the back of the product until it locks into place.
    Figure 87: Insert the cartridge
    Image: Inserting the cartridge
  6. Close the cartridge latch.
  7. Close the cover on the product.
Step two: Align the cartridges
Follow these steps to align the cartridges.
    1. Click Start, and then click Printers and Faxes.
    2. Click the icon for your product, and then click File and Properties.
    3. Click the Services tab, and then click Align to print an alignment page.
    1. Click Start, and then click Control Panel.
    2. Double-click Printers.
    3. Click the icon for your product, and then click File and Properties.
    4. Click the Services tab, and then click Align to print an alignment page.

Service the printer

These steps apply to all countries/regions except Asia Pacific.
If you have completed all the preceding steps and are still experiencing a problem, service the product.
Determine if your product is in warranty or out of warranty. If you need help determining your product’s warranty status, go to HP’s Warranty Check Tool .
  • If your product is in warranty, contact HP.
  • If your product is out of warranty, fees might apply for contacting HP.
HP Deskjet 940c Printer

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