Introduction
This document provides the technical information for your HP RuggedWriter 480 printer. This information may contain reference to accessories or items that are no longer available from HP.
Model numbers
| Model Number | Printer Description |
|---|---|
| HP 2235A | Centronics parallel and RS-232 dual I/O without sheetfeeder |
| HP 2235B | HP-IB and RS-232 dual I/O without sheetfeeder |
| HP 2235C | Centronics parallel and RS-232 dual I/O with sheetfeeder |
| HP 2235D | HP-IB and RS-232 dual I/O with sheetfeeder |
The standard unit includes: printer, power cord, ribbon, and Owner’s Manual. Sheetfeeder accessory is included for HP 2235C and HP 2235D. Power supply voltage is user-configurable to 100, 120, 220, or 240 V. Cables must be ordered separately.
This product was introduced 1-Oct-1987 and discontinued 1-Oct-1993
Printer description
- The HP RuggedWriter 480 printer (HP 2235 series) offers top-quality 24-wire impact printing (dot matrix).
- The printer offers multiple interface operations, RS-232 (Serial), Centronics (Parallel), and HP-IB.
- The printer operates in two basic modes: HP mode (HP computers) and Alternate mode (IBM compatibles and Epson emulation).
Printer features
| Printer Feature | Description |
|---|---|
| Print Technology | 24-wire dot matrix impact printing |
| PCL Printer Language (HP mode) | PCL 3 |
| Alternate (Epson-type) Print Mode | Epson ESC/P (LQ-1000/LQ-1500) |
| Interfaces | HP 2235A/C: Centronics Parallel and RS-232-C Serial HP 2235B/D: HP-IB and RS-232-C Serial |
| Baud Rates for Serial I/O | 1200, 2400, 9600, 19200 |
| Apple Talk I/O | None |
| Font Cartridge Slot | Yes |
| Optional Font Cartridge Fonts | Times Roman, Helvetica, Prestige Elite, Letter Gothic |
| Buffer Size | 2 KB (optional 16 KB with font cartridge |
| Speed - Draft Mode | 480 characters per second (cps) at 12 characters per inch (cpi); 400 cps at 10 cpi |
| Speed - Letter Quality Mode | 240 characters per second (cps) at 12 characters per inch (cpi); 200 cps at 10 cpi |
| Resolution - Graphics | PCL mode format (dots per inch): 90x90, 180x180 Epson mode format (dots per inch): 60x60, 120x 60, 90x180, 180x180, 80x60, 240x60, 120x180, 360x180, 90x60, 60x180 |
| Printer Ribbon | 92156S - 3 Pack Ribbon (5 million draft character-life each) |
| Monthly Duty Cycle | 5,000 pages per month maximum |
| Mean Time Between Failures | 20,000 hours based on 2,000 annual hour’s power-on and 5,000 printed draft pages monthly usage. |
| Media Capacity | with Single-bin sheet feeder accessory - up to 100-sheet capacity |
Driver selection
There are two basic modes of operation: HP PCL mode and Epson Emulation mode.
- HP PCL mode would be used if there were a driver available for the HP RuggedWriter printer in the program you are using. To place the HP RuggedWriter in HP PCL mode, set the dipswitch B1 in the down position.
- Epson Emulation mode (Alternate mode) would be used if there were not an HP RuggedWriter driver available. In this mode, the HP RuggedWriter can emulate an Epson LQ 800 or an Epson LQ 1000. To place the HP RuggedWriter in Epson Emulation mode, set the dipswitch B1 in the up position.
Resident fonts
The resident fonts (internal fonts) are used to set the printing format for the HP RuggedWriter printer.
The following font tables provide the listings for each operational mode:
| PCL Mode Control Format | Epson Mode Control Format |
|---|---|
| Print Pitch (Characters per Inch) | Print Pitch (Characters per Inch) |
| 10 Pica (136 columns) | 10 Pica (136 columns) |
| 12 Elite (163 columns) | 12 Elite (163 columns) |
| 16.7 Compressed (227 columns) | 15 Compressed (204 columns) |
| 20 Compressed (272 columns) | 17.3 Compressed (232 columns) |
| 5 Expanded (68 columns) | 20 Compressed (272 columns) |
| Proportional Spaced | 5 Expanded (68 columns) 6 Expanded (81 columns) 7.5 Expanded (102 columns) 8.53 Expanded (116 columns) Proportional Spaced |

NOTE: Sub- or Superscript, italics, bold, and underline are available in all pitches. Line spacing is variable.
Character sets
The following table provides the available character sets for each operational mode.
| HP PCL Mode (B1 Down) | Epson Mode(B1 Up) |
|---|---|
| HP Roman8 ( Default) | Epson USA (Default) |
| PC-8 | PC-8 |
| PC-8 Danish/Norwegian | PC-8 Danish/Norwegian |
| ISO 7-bit UK (04) | Epson 7-bit England |
| ISO 7-bit Germany (21) | Epson 7-bit Germany |
| ISO 7-bit France (69) | Epson 7-bit France |
| ISO 7-bit Italy (15) | Epson 7-bit Italy |
| ISO 7-bit Norway (60) | Epson 7-bit Norway |
| ISO 7-bit Sweden (11) | Epson 7-bit Sweden |
| ISO 7-bit Spain (17) | Epson 7-bit Spain |
| JIS ASCII | Epson 7-bit Japan |
| ECMA-94 Latin1 | Epson 7-bit Denmark |
| Terminal mode | Epson 7-bit Denmark II |
| ISO Portugal (16) | Epson 7-bit Spain II |
| ISO Sweden (10) | Epson 7-bit Latin America |
| Reserved | Reserved |
Character cell structure
The following table provides the available character cell modes.
| Character Cell: | 12 x 12 draft mode |
| Character Cell: | 36 x 24 letter-quality mode |
| Wire size: | 0.28 mm (0.011 inches) |
Paper handling
The following tables provide the paper handling options.
Tractors (for Z-Fold and multipart forms)
| Maximum width edge to edge: | 380.0 mm (14.95 inches) |
| Minimum width between holes: | 76.2 mm (3.0 inches) |
| Maximum printable line: | 345.4 mm (13.6 inches) |
| Weight: | 15 to 32lb/56 to 120 g/m (squared) |
| Maximum forms thickness: | 0.46 mm (0.018 inches) |
Hand-Fed paper (single-part paper only)
| Maximum width: | 370 mm (14.57 inches) |
| Minimum length: | 140 mm (4.1 inches) |
| Weight: | 18 to 24lb/68 to 90 g/m (squared) |
Bin-Fed paper (single-part paper only)
| Paper Size: | 8.5 x 11 inches or A4 |
| Weight: | 18 to 24lbs/68 to 90 g/m (squared) |

NOTE: Multi-part forms are accessible on tractors only. Handheld slot and sheet feeder accommodate single-part, cut sheet paper only.
Interface and cable requirements
The following table provides information on the type of computer, the I/O type port and the recommended cable.
| Host | Printer I/O | Host Interface | HP Cable |
|---|---|---|---|
| HP Vectra PC | Parallel Serial | HP24540A HP24541A (25 pin) HP24540A/41A (9 pin) | 24542D 13242G |
| HP 3000 (3X, 4X, 5X, 6X, 70, Micro XE/GX/LX) | Serial | ADCC and ATP (25 pin) or ATP (3-pin) | 13242X |
| HP 3000 (900, MPE XL 1.1 or later | Serial | DTC (3-pin) | 13232X |
| HP 9000 (800) | HP-IB Serial | 27110B 98196A | 10833 A/B/C/D 40242M or 92218A |
| HP 9000 (200, 300, 500) | HP-IB | Built-in | 10833 A/B/C/D |
| HP 2932/93/94/97 Terminal | Parallel Serial | Opt. 093 or HP40210P Opt. 092 or HP40210R | 12343D or 40242D 13242G or 40242G |
| IBM PC Family and compatibles | Parallel Serial | IBM Parallel Printer Adapter or HP24540A IBM Asyn. Com. Adapter (25 pin) IBM Serial/Parallel Adapter (9-pin) | 24542D 13242H 24542G |
Physical specifications
| Net Weight: | 15.9 kg (35.0 lbs.) |
| Footprint (Physical Specifications): | Height: 20.9 cm (8.2 inches) Width: 60.0 cm (23.6 inches) Depth: 35.0 cm (13.7 inches) Add 14.5 cm (5.8 inches) for HP 22235C/D models |
Electrical
| Voltage: | 100,120,220,240 AC(+10% to -10%) user selectable |
| Frequencies: | 47.5 to 63 Hz |
| Power Consumption: | 20 W maximum, non-printing 80 W maximum, printing |
Environmental
| Temperature (Operating): | -41 to 104 degrees Fahrenheit (5 to 40 degrees Celsius) |
| Temperature (Storage): | -40 - 158 degrees Fahrenheit (-40 to 70 degrees Celsius) |
| Humidity: | 15 to 80% RH non-condensing |
| Acoustics (Sound pressure level-Lpa): | <56dB(A) @ 1m bystander position |
Safety certifications
UL, CSA, IEC compliance, FCC Class B certified per FCC Rules, Part 15, subpart J, when used with a Class B computer device.
Manuals
The manuals and part numbers are provided for reference, they may not be available from HP.
| Part Number | Description |
|---|---|
| 02235-90002 | HP RuggedWriter 480 Owner’s Manual |
| 02235-90003 | HP RuggedWriter 480 Service Manual |
Control panel
The control panel (or key pad) contains the following operational buttons (keys) and lights (indicators).
Buttons (keys)
- Select Print Mode
- Up Arrow
- Down Arrow
- Select Paper Path
- Line Feed
- Form Feed
- On Line
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