Support & Drivers
Summary of site-wide JavaScript functionality
HP Officejet Pro L7780 All-in-One Printer Troubleshooting
Product Home
Downloads
Troubleshooting
User guides
Contact HP
Solve a problem
Print
Share
Select from the list below
Installation issues
Jams & feed problems
Errors & lights on the product
Error messages displayed on computer
Print
Scan
Fax
Copy
Software & drivers
Memory card
Power issues
Wireless & network
ePrint & mobile devices
FAQs
'Carriage Jam' or 'Carriage Blocked' Error Message Displays on the Control Panel Display
'Paper Jam' Message Displays on the Control Panel or the Computer
An 'HP Installer can't be opened...' Message Displays on a Mac Running OS X v10.8 Mountain Lion
An 'Unsupported Operating System' or 'Software not compatible' Message Displays on a Mac Running OS X v10.8 Mountain Lion
Can't Print? Print Jobs are Stuck in the Print Queue
View all FAQs for this product
Fix Common Problems Using HP Diagnostic Tools for Windows
Use diagnostic utilities in Windows to help you identify and fix common printer problems.
HP Officejet Pro L7780 All-in-One Printer
Not your product?
More for this product
Buy Supplies and Accessories
Extended Service Plan
Check Warranty Status
Check Repair Order
“HP Installer Setup has stopped working” error when installing HP printer software version 14 or earlier (Windows 7)
Need wireless help? Visit the HP Wireless Printing Center!
HP Consumer Support Forum
Consumer support forum
Follow us
Print
