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HP
LaserJet
1100A
Service Manual
© Copyright Hewlett-Packard Company 1998
All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number C4224-90962 First edition, October 1998 Trademark Credits Adobe and PostScript are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions. Windows is a U.S. registered trademark of Microsoft Corporation. Warranty The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. WARNING Electrical Shock Hazard To avoid electrical shock, use only supplied power cords and connect only to properly grounded wall outlets.
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C4224-90962
Conventions
This manual uses the following conventions: The names of major printer parts and assemblies are Capitalized. Color is used to emphasize items which are important to the material under discussion. Bold is used for emphasis, particularly in situations where italic type would be confusing.
Italic type is used to indicate related documents or emphasis.
NOTE:
Notes contain important information set off from the text.
CAUTION:
Caution messages alert you to the possibility of damage to equipment or loss of data.
WARNING!
Warning messages alert you to the possibility of personal injury.
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Chapter Descriptions
1 Printer Specifications
Contains printer features and product overview, printer specifications, and required safety and compliance statements.
2 Product Operation
Contains descriptions of the Control Panel, printer key functionality, scanner Control Panel, paper handling, toner cartridge, and warranty statement.
3 Functional Overview
Contains details about basic functions, printer functions, Engine Control Unit (ECU) and power system, formatter system, image formation system, printer paper feed system, optional document scanner system, and basic sequence of operation.
4 Removal and Replacement
Contains step-by-step procedures for replacing field replaceable units (FRUs) in the printer.
5 Troubleshooting/Maintenance
Contains details basic troubleshooting steps, fatal errors and accessory errors, image formation troubleshooting steps, solving image quality problems, cleaning procedures, functional checks, ServiceMode functions, and troubleshooting tools.
6 Parts and diagrams
Contains exploded view drawings and part number listings for all replaceable parts in the printer. Contains two replaceable parts tables: one sorted alphabetically by part name and one sorted numerically by part number. Both tables are cross referenced to the diagrams in the chapter.
Index
Contains an alphabetical, cross referenced listing of information found in the main body of the manual.
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C4224-90962
Contents
1 Printer Specifications
Printer description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 FCC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Environmental Product Stewardship Program . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Protecting the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Material safety data sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Additional product stewardship . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Environmental conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Regulatory statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Laser safety statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Canadian DOC regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Korean EMI statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Laser statement for Finland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2 Product Operation
HP LaserJet 1100 Printer control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Printer key functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Scanner control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Printer paper handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Toner cartridge information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Warranty statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3 Functional Overview
Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Engine Control Unit (ECU)/power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Printer engine control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Power system on ECU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Formatter system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Draft mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Memory Enhancement technology (MEt) . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Enhanced I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Page Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 PJL Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Image formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Toner cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Printer paper feed system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Paper jam detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Solenoid, photosensors, and switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Document scanner system (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Basic sequence of operation (formatter to printer) . . . . . . . . . . . . . . . . . . . . . . . 58
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4 Removal and Replacement
Removal and replacement strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Required tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 External assemblies and covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Paper guides removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Document scanner removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Document scanner opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Contact image sensor removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Printer door removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Pod removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Back cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Internal paper guide removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Front cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Stabilizer bars removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Printer laser/scanner cover removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Internal assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Scanner assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Output roller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Delivery assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Paper exit sensor flag removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Fusing element removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Fusing element removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Gear train motor and solenoid removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Solenoid removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Pressure roller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Transfer roller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Pickup roller removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Paper pick-up assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Kick plate removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Separation pad removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Bottom assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Formatter pan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Document scanner cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Hinge mechanism removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 ECU pan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 Paper feed assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
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5 Troubleshooting/Maintenance
Basic troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Fatal errors/accessory errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Image formation troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Checking the toner cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Solving image quality problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Solving paper feed problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Cleaning procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Cleaning the toner cartridge area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Cleaning the printer paper path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Cleaning the pickup roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Cleaning the scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Functional checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Engine test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Self test page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Half-self test functional check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Drum rotation functional check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Heating element check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 High-voltage power supply check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Paper curl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Paper path check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 ServiceMode functions (PJL Software Commands) . . . . . . . . . . . . . . . . . . . . . 149 Troubleshooting tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Printer paper path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Document paper path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Repetitive image defect ruler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Main wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
6 Parts and diagrams
How to use the parts lists and diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts and supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Consumables and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ordering consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External covers and panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Document scanner parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internal components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Feeder assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine controller assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Formatter pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts list sorted by part number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts list sorted by part name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 159 159 160 161 162 163 164 165 172 174 176 177 180
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1
Printer Specifications
Chapter contents
Printer description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 FCC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Environmental Product Stewardship Program . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Material safety data sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Regulatory statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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Chapter contents 9
Printer description
The HP LaserJet 1100 Printer is the next generation low-cost HP LaserJet printer. It provides 600 dots-per-inch (dpi) LaserJet features and add-on scanner capabilities at the lowest possible price. The scanner is 300 dpi/8 bits per pixel (bpp) and contains an automatic document feed (ADF) holding up to 20 pages. The HP LaserJet 1100 Printer prints eight pages-per-minute (ppm). It provides an excellent Windows printing solution, ease of use, and higher performance. With 600 dpi resolution, the HP LaserJet 1100 Printer has exceptional text and graphics print quality. The simplified Control Panel and improved paper handling make this product very simple to use. The HP LaserJet 1100 Printer also provides modular scanner capability. This product is sold in three configurations: 1. Printer Only: · · · C4224AHP LaserJet 1100 Printer C4225AHP LaserJet 1100 xi Printer (U.S.) C4226AHP LaserJet 1100 si Printer (U.S.)
2. Printer and Scanner: · · · C4218A HP LaserJet 1100A Printer-Copier-Scanner C4219A HP LaserJet 1100A xi Printer-Copier-Scanner (U.S.) C4220AHP LaserJet 1100A se Printer-Copier-Scanner (U.S.)
3. Scanner Only: · C4221A Copier-Scanner for HP LaserJet 1100 Printer
10 Chapter Printer Specifications
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Hardware description
The HP LaserJet 1100 Printer engine prints eight pages per minute. The HP LaserJet 1100 Printer has a compact design with vertical paper trays. There is one main Paper Input Bin with a 125-sheet capacity for continuous, multiple-page printing. Manual, single-sheet printing is possible through the Single Sheet Input Slot. Both trays are center justified for all supported paper sizes. The output tray holds up to 100 sheets. The HP LaserJet 1100 Printer has a very fast first-page-out, at less than twenty seconds. It has a Control Panel containing two LEDs. A third LED is located on the Go Key. The formatter board contains 4 MB of ROM, 2 MB of RAM, and a 32-bit MCF5202 chip. There is one slot available for DIMM Memory Expansion (supporting a 4 MB, 8 MB, or 16 MB DIMM). The HP LaserJet 1100 Printer engine has a 7,000 pager-per-month duty cycle and has no fan. The toner life for the HP LaserJet 1100 Printer is 2,500 pages. The attachable scanner has two Control Panel buttons and up to 20-page ADF.
Figure 1-1 Control panel
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Hardware description 11
Firmware description
The firmware in the HP LaserJet 1100 Printer includes: · · · · · · Enhanced PCL 5 with Status Readback 26 scalable Intellifont Fonts Full page 600 dpi bitmap 600 dpi Pixel Placement, Mosaic Characters Memory Enhancement technology (MEt) with Hardware Compression/Decompression
The HP LaserJet 1100 Printer firmware also has REt and EconoMode functionality. Scan capability for the scanner attachment includes 300 dpi and 256 levels of gray (8 bpp).
12 Chapter Printer Specifications
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Specifications
Table 1-1. Printer specifications Environmental specifications Operating environment Printer plugged into an AC outlet: · · Storage environment Temperature: 10° C to 32.5° C (50° F to 90.5° F) Humidity: 20% to 80% (no condensation)
Printer unplugged from an AC outlet: · · Temperature: 0° C to 40° C (32° F to 104° F) Humidity: 10% to 90% (no condensation)
Acoustics Noise level During printing: · 6.1 Bels sound power level (per ISO 9296) (HP LaserJet 1100 Printer tested at 8 ppm) Sound pressure level (bystander position): 47 dB Sound pressure level (operator position): 55 dB Silent during standby and sleep mode
· · ·
Electrical specifications Power requirements · or · · Power consumption · · Minimum recommended circuit capacity 220v (+/-10%), 50/60 Hz (+/-2 Hz) 220-240v (+/-10%), 50 Hz (+/-2 Hz) During printing: 200 watts (average) During standby and power save: 6 watts 100-120v (+/-10%), 50/60 Hz (+/-2); 127v, 60Hz NOM
4.5A @ 115v; 2.5A @ 230v
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Specifications 13
Table 1-1. Printer specifications (continued) Physical specifications Dimensions (1100) · · · Weight (cartridge installed) 1100A · Width: 367 mm (14.5 inches) Depth: 306 mm (12.8 inches) Height: 266 mm (14.9 inches) 7.2 kg (16.1 lb)
· · ·
Width: 367 mm (14.5 inches) Depth: 402 mm (15.8inches) Height: 378 mm (14.9 inches) 8.7 kg (19.2 (lb)
Weight
·
Printer capacities and ratings Print speed Paper input bin capacity Paper output bin capacity 8 pages per minute (Letter size paper) 125 sheets of regular weight 20 lb (75 g/m2) paper or up to 10 envelopes 100 sheets of regular weight 20 lb (75 g/m2) paper
Minimum paper size 76 x 127 mm (3 x 5 inches) Maximum paper size Base memory Upgrade memory expansion Print resolution Duty cycle 216 x 356 mm (8.5 x 14 inches)
4 MB of ROM and 2 MB of RAM One DIMM slot available for a 4 MB, 8 MB, or 16 MB RAM DIMM 600 dots per inch (dpi) 7,000 single-sided pages per month
Scanning Capacities and Ratings
14 Chapter Printer Specifications
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Table 1-1. Printer specifications (continued) Scan Speed Input Capacity Up to 8 pages per minute (Letter size paper) Up to 20 pages of regular weight 20 lb (75 g/m2) paper
Minimum Paper Size 51 x 89 mm (2 x 3.5 inches) Maximum Paper Size Scan Resolution Duty Cycle 216 x 762 mm (8.5 x 30 inches)
300 dots per inch 256 levels of gray 2,500 pages per month
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Specifications 15
FCC compliance
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · · · Reorient or relocate the receiving antenna. Increase separation between equipment and receiver. Connect equipment to an outlet on a circuit different from that to which the receiver is located. Consult your dealer or an experienced radio/TV technician.
·
NOTE:
Any changes or modifications to the printer that are not expressly approved by HP could void the user's authority to operate this equipment. Use of a shielded interface cable is required to comply with the Class B limits of Part 15 of FCC rules.
16 Chapter Printer Specifications
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Environmental Product Stewardship Program
Protecting the Environment
Hewlett-Packard Company is committed to providing quality products in an environmentally sound manner. This HP LaserJet printer has been designed with several attributes to minimize impacts on our environment.
This HP LaserJet printer eliminates:
Ozone production The printer uses charging rollers in the electrophotographic process and therefore generates no appreciable ozone gas (O3).
This HP LaserJet printer design reduces:
Energy consumption Energy usage drops to as little as 6 W while in low-power (PowerSave) mode. Not only does this save natural resources, but it also saves money without affecting the high performance of this printer. This product qualifies for ENERGY STAR. ENERGY STAR is a voluntary program established to encourage the development of energy-efficient office products. E NERGY STAR is a U.S. registered service mark of the U.S. EPA.
As an ENERGY STAR partner, Hewlett-Packard Company has determined that this product meets ENERGY STAR Guidelines for energy efficiency. Toner consumption EconoMode uses significantly less toner, which may extend the life of the toner cartridge. Paper use Depending on the type of software program in use, you can request for a number of pages of your document to be printed on one page of paper. This N-up printing practice and the printer's manual duplexing feature, which provides two-sided printing, can reduce paper usage and the resulting demands on natural resources.
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The design of this HP LaserJet printer facilitates the recycling of:
Plastics Plastic housing parts have markings according to international standards that enhance the ability to identify plastics for recycling purposes at the end of the printer's life. HP LaserJet printing supplies In many countries, this product's printing supplies (e.g., toner cartridge, drum, fuser) can be returned to HP through the HP Planet Partners Printing Supplies Environmental Program. An easy-to-use takeback component of the program is available in over 20 countries. Multilingual program information and instructions are included in every new HP LaserJet Toner Cartridge and Consumables box. HP Planet Partners printing supplies environmental program information Since 1990, the HP LaserJet Toner Cartridge Recycling Program has collected more than 12 million used HP LaserJet toner cartridges that otherwise may have been discarded in the world's landfills. The HP LaserJet toner cartridges go to a collection center and are bulk shipped to our recycling partners who disassemble the cartridge parts for recycling. After a thorough quality inspection, minor parts such as nuts, screws, and clips are reclaimed for use in new cartridges. Remaining materials are separated and converted into raw materials for use by other industries to make a variety of useful products. For more information in the U.S., call 1-800-340-2445 or visit the HP LaserJet Supplies website at: Asia Pacific: http://www.hp.com/sg/asiapacific/planp1.htm U.S.: http//www.ljsupplies.com/planetpartners/ Europe: http://www.hp.com/pays/eur_supplies/english/planetpartners Non-U.S. customers should call the local HP Sales and Service Office for further information regarding availability of the HP Planet Partners LaserJet Toner Cartridge and Consumables Recycling Program. Paper This printer is suited for the use of recycled papers when the paper meets the guidelines outlined in the HP LaserJet Printer Family Paper Specifications Guide. See "Accessories and Ordering Information" in the HP LaserJet Printer Family Paper Specifications Guide for ordering information. This printer is suitable for the use of recycled paper according to DIN 19 309.
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Material safety data sheet
The Toner Cartridge/Drum MSDS can be obtained by contacting the HP LaserJet Supplies website at http://www.ljsupplies.com/planetpartners/datasheets.html. If you do not have access to the Internet, try calling the U.S. HP FIRST (fax-on-demand service) at 1-800231-9300. Use Index number 7 for a listing of the Toner Cartridge/Drum Material/Chemical Safety Data Sheets. Non-US customers should refer to the front of this manual for appropriate phone numbers and information.
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Material safety data sheet 19
Additional product stewardship
Environmental conformity
The design of this HP LaserJet printer facilitates the recycling of:
Printer and parts Design for recycling has been incorporated into this printer and its accessories. The number of materials has been kept to a minimum while ensuring proper functionality and high product reliability. Dissimilar materials have been designed to separate easily. Fasteners and other connections are easy to locate, access, and remove with common tools. High priority parts have been designed to be accessed quickly for efficient disassembly and repair. Plastic parts have been primarily designed in two colors to enhance recycling options. A few small parts are colored specifically to highlight customer access points. The plastics used in the printer housing and chassis are technically recyclable. HP provides a product return system for customers in Germany. Many of the functional parts are recovered, tested, and reused as fully warranted service parts. Used parts are not placed into new products. Remaining product parts are recycled, if possible. For product return information, contact the address below: Hewlett-Packard GmbH Wertstoffzentrum Fronackerstr.30 71063 Sindelfingen
To ensure longevity of your HP LaserJet printer, HP provides the following:
Extended warranty HP SupportPack provides coverage for the HP hardware product and all HP-supplied internal components. The hardware maintenance warranty covers a three-year period from date of the HP product purchase. The customer must purchase HP SupportPack within 90 days of the HP product purchase. Information on HP SupportPack is available in a fax format by calling HP FIRST (Fax Information Retrieval Service Technology). The document number is 9036. Customers can contact the nearest HP dealer about this service. Spare parts and consumables availability Spare parts and consumable supplies for this product will be made available for at least five years after production has stopped.
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Regulatory statements
Declaration of Conformity according to ISO/IEC Guide 22 and EN45014 Manufacturer's Name: Manufacturer's Address: declares that the product Product Name: Model Number: Product Options: Safety: EMC: HP LaserJet 1100 Printer C4224A ALL IEC 950:1991+A1+A2+A3+A4 / EN 60950:1992+A1+A2+A3+A4 IEC 825-1:1993 / EN 60825-1:1994 Class 1 (Laser/LED) 1 CISPR 22:1993+A1 / EN 55022:1994 Class B EN 50082-1:1992 IEC 801-2:1991 / prEN 55024-2:1992 IEC 801-3:1984 / prEN 55024-3:1991 IEC 801-4:1988 / prEN 55024-4:1992 IEC 1000-3-2:1995 / EN61000-3-2:1995 IEC 1000-3-3:1994 / EN61000-3.3:1995 FCC Title 47 CFR, Part 15 Class B 2) 1) / ICES-003, Issue 2 / VCCI-2 1) 4 kV CD, 8 kV AD 3 V/m 0.5 kV Signal Lines 1.0 kV Power Lines Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714-1021, USA
conforms to the following Product Specifications:
AS / NZS 3548:1992 / CISPR 22:1993 Class B Supplementary Information:
The product herewith complies with the requirements of the following Directives and carries the CEmarking accordingly: the EMC directive 89/336/EEC the Low-Voltage Directive 73/23/EEC The product was tested in a typical configuration with Hewlett-Packard Personal Computer Systems. This Device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. For Compliance Information ONLY, contact: Australia Contact: Product Regulations Manager, Hewlett-Packard Australia Ltd., 31-41 Joseph Street, Blackburn, Victoria 3130, Australia Your Local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH, Department HQ-TRE / Standards Europe, Herrenberger Straße 130, D71034 Böblingen (FAX: +49-7031-14-3143) Product Regulations Manager, Hewlett-Packard Company, PO Box 15 Mail Stop 160, Boise, ID 83707-0015 (Phone: 208-396-6000)
European Contact:
USA Contact:
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Regulatory statements 21
Laser safety statement
The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration has implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products marketed in the United States. The printer is certified as a "Class 1" laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. Since radiation emitted inside the printer is completely confined within protective housings and external covers, the laser beam cannot escape during any phase of normal user operation.
WARNING!
Using controls, making adjustments, or performing procedures other than those specified in this user's guide may result in exposure to hazardous radiation.
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Canadian DOC regulations
Complies with Canadian EMC Class B requirements. «Conforme á la classe B des normes canadiennes de compatibilité électromagnétiques. «CEM».»
Korean EMI statement
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Laser statement for Finland
LASERTURVALLISUUS LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT HP LaserJet 1100 Printer -laserkirjoitin on käyttäjän kannalta turvallinen luokan 1 laserlaite. Normaalissa käytössä kirjoittimen suojakotelointi estää lasersäteen pääsyn laitteen ulkopuolelle. Laitteen turvallisuusluokka on määritetty standardin EN 60825-1 (1993) mukaisesti. VAROITUS! Laitteen käyttäminen muulla kuin käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle. VARNING! Om apparaten används på annat sätt än i bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1. HUOLTO HP LaserJet 1100 Printer -kirjoittimen sisällä ei ole käyttäjän huollettavissa olevia kohteita. Laitteen saa avata ja huoltaa ainoastaan sen huoltamiseen koulutettu henkilö. Tällaiseksi huoltotoimenpiteeksi ei katsota väriainekasetin vaihtamista, paperiradan puhdistusta tai muita käyttäjän käsikirjassa lueteltuja, käyttäjän tehtäväksi tarkoitettuja ylläpitotoimia, jotka voidaan suorittaa ilman erikoistyökaluja. VARO! Mikäli kirjoittimen suojakotelo avataan, olet alttiina näkymättömälle lasersäteilylle laitteen ollessa toiminnassa. Älä katso säteeseen. VARNING! Om laserprinterns skyddshölje öppnas då apparaten är i funktion, utsättas användaren för osynlig laserstrålning. Betrakta ej strålen. Tiedot laitteessa käytettävän laserdiodin säteilyominaisuuksista: Aallonpituus 770-795 nm Teho 5 mW Luokan 3B laser
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2
Product Operation
Chapter contents
HP LaserJet 1100 Printer control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer key functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scanner control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer paper handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Toner cartridge information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warranty statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 29 31 35 38 39
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Chapter contents 25
HP LaserJet 1100 Printer control panel
Hardware overview
The HP LaserJet 1100 Printer's Control Panel consists of two LEDs and a Go key containing a third LED. There is one amber LED (the Attention LED), and two green LEDs (the Ready LED and the Go LED). The green LEDs are contained in the Go key. If the scanner is attached, there are two additional buttons. Scanner modes are not shown on the printer LEDs and scan keys have no effect on printer functionality.
Go key
The HP LaserJet 1100 Printer Control Panel's single Go key will be the only means the user has of interacting with the printer, except through software. Therefore, the Go key must perform all actions the user needs. The Go key performs ten functions. These functions are explained in the table below. See "Scanner control panel" on page 31.
Figure 2-1 Printer light patterns
Light status legend
Symbol for "light off" Symbol for "light on" Symbol for "light blinking"
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Table 2-1. Control panel light messages Light status Condition of the printer
PowerSave mode (or the printer is off) The printer uses PowerSave mode to conserve energy.
Action
Low power consumption mode. Pressing the Go key on the printer control panel or printing will awaken the printer from PowerSave mode. Check the power cord if the above actions do not generate a response (and the power switch if your printer is powered with 220-240 volts). No action is necessary; however, if you press and release the Go key on the printer control panel, a self-test page will print.
Ready The printer is ready to print.
Processing Self test page Form Feed The printer is receiving or processing data. Buffered data The printer memory is retaining unprinted data. A file has been sent to the printer that does not contain a from feed at the end. Manual feed
Wait for the job to print.
Press and release the Go key on the printer control panel to print the remaining data.
Check that you have loaded the correct paper, then press and release the Go key on The printer is in manual feed the printer's Control Panel to print. Manual mode. The printer is waiting for feed is controlled by the software. If you do a different size sheet of paper to not want to be in manual feed mode, change be placed in the Single Sheet the setting in your printer properties. Input Slot or Paper Input Bin. Door open, no Toner Cartridge, Check the following: or paper jam q The printer door is closed. The printer is in an error state. q The Toner Cartridge is correctly installed in the printer.
q
There are no paper jams.
Paper out The printer is out of paper.
Load paper into the printer.
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HP LaserJet 1100 Printer control panel 27
Table 2-1. Control panel light messages (continued) Light status Condition of the printer
Memory out
Action
The page being printed may have been too complex for the memory capacity of the The printer ran out of memory in printer. the middle of a print job. q See "Memory (DIMMs)" in the HP LaserJet 1100 Printer User Guide to add memory.
q
Press and release the Go key to print.
Reset/Printer initialization The printer memory is being reset and all previously sent print jobs are being purged. Or, a printer initialization is taking place. All lights blink for 1/2 of a second or longer if initializing. Fatal error All lights are on.
No action is necessary. However, you can reset the printer if you press and hold the Go key for five seconds.
q q
Turn the printer off and then back on. Press the Go key to see the secondary light pattern. See Chapter 5, "Troubleshooting/ Maintenance" for details onf fatal light patterns.
q
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Printer key functionality
The following table contains each printer mode and the result from a short press (when the Go key is pressed for less than five seconds), and the results from a long press (when the Go key is pressed for five or more seconds). Scanner keys have no effect on printer functionality other than the sharing of power resources, which may slow down either function.
Table 2-2. Printer key functionality Printer mode
Power on / Initialization
Short press (less than five seconds)
No action
Long press (greater than five seconds)
Performs NVRAM Initialization if Go key is pressed during power up and held for twenty seconds Prints continuous Self Test if pressed during RAM/ROM check and held for 15 seconds
Sleep mode Ready
Printer transitions to Ready mode or Paper Out mode Print the Self Test Page
Printer transitions to Ready mode or Paper Out mode Printer Reset if held for five seconds Cleaning Page if held for 20 seconds
Processing data Self Test Form Feeding Buffered Data in printer Manual Feed request Door open / no toner Paper Out Paper Jam Continuable error (Memory Out/Page Punt) Resetting Fatal Error
No Action/Form Feed the current page No action No action Printer performs a form feed Printer prints the page No action No action Attempts to reset jam condition Continue to print No action Shows LED error pattern as long as the Go key is held down Printer resets and transitions to Ready mode Printer Reset Printer Reset Printer Reset Printer Reset Printer Reset Printer Reset Printer Reset Printer Reset No action Shows LED error pattern as long as the Go key is held down Printer resets and transitions to Ready mode
Continuous Self Test Page
A form feed may occur when the LEDs on the Control Panel are showing a processing mode. This could occur if the computer sends only part of the page to the printer because the computer has not completed processing the entire page. When the Go key is pressed
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Printer key functionality 29
while data is in the printer, a form feed pending will occur. Once the data the printer has received is completely formatted and no more data is in the I/O, the partial page will be ejected due to the form feed pending.
Normal printer operation
When power is supplied to the printer, all LEDs go on and then off. The LEDs will sequence on and off, one after the other, from the first LED (Go key/LED) to the last LED (Attention LED). If an error is detected or if paper is out, the printer will enter that error mode. When data is downloaded to the printer (during Ready mode), the Ready LED will blink. When the printer stops receiving data, the Ready LED may continue to blink while the printer formats the data. If an error occurs, the printer will enter that error mode and display the error on the Control Panel.
Error priority
The highest priority error will be displayed if multiple errors occur simultaneously. The priority of errors, from highest priority (most important) to lowest, is: 1 2 3 4 5 Fatal Errors Door Open/No Toner Cartridge Paper Jam Paper Out Memory Error
While in any of the errors except Fatal Error, a reset may be performed by pressing and holding the Go key for five or more seconds, or unplug to reset. When the reset completes it will return to the error condition. If the error was cleared by the reset (such as a Memory Error), the printer will return to Ready mode.
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Scanner control panel
Figure 2-2 Scanner control panel The scanner Control Panel consists of two keys; a scan key and a copy key. These keys have no effect on the printer other than contention for resources.
Scan
Pressing the scan key sends a message to the computer that opens the appropriate software application to start the scan or starts a scan depending on how the computer software is configured. If the scan is initiated with no paper in the ADF, an error message will appear on the computer.
Quick copy
Pressing the copy button initiates a scan that is sent directly to the printer without using the computer software. If there is no paper in the ADF, the scanner will still attempt to pick up a sheet of paper. The Quick Copy function will work even if the unit is not attached to a computer.
NOTE:
Scan Abort: Pressing both copy and scan keys within one half second of each other causes the scanner to abort the current scan. If there is paper in the scanner, the scan engine will be in a jam mode, and the paper will have to be removed manually. This decreases the chance of documents being damaged by the scanner.
Scanner key functionality based on printer status
The following table contains scanner and printer modes and the result of pressing the scan and/or copy keys. The scanner key has no effect on printer functionality other than some print functionality will be held off due to contention for resources. The only print key press that will affect a scan job, other than contention for resources, is a printer Control Panel reset.
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Table 2-3. Scanner key functionality based on printer status
Scan key Scanner mode press
Power on / Initialization Sleep mode Ready Processing data No action Starts scan Starts scan Starts scan if scan manager can get the required resources Starts scan if scan manager can get the required resources Starts scan if scan manager can get the required resources Starts scan if scan manager can get the required resources Starts scan if scan manager can get the required resources Starts scan if scan manager can get the required resources Starts scan if scan manager can get the required resources
Scan and copy key pressed Copy key together press
No action No action No action No action No action
Printer reset
No action
Starts copy if paper Resets the printer is in the printer tray Starts copy Starts copy if copy manager can get the required resources Starts copy if copy manager can get the required resources Starts copy if copy manager can get the required resources Starts copy if copy manager can get the required resources Starts scanning copy, but will wait until the printer is ready Starts scanning copy, but will wait until the printer is ready Starts scanning copy, but will wait until the printer is ready Resets the printer Resets the printer
Self Test
No action
Resets the printer
Form Feeding
No action
Resets the printer
Buffered Data in printer
No action
Resets the printer
Manual Feed request
No action
Resets the printer
Door open / no toner
No action
Resets the printer
Paper Out
No action
Resets the printer
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Table 2-3. Scanner key functionality based on printer status (continued)
Scan key Scanner mode press
Printer Paper Jam Starts scan if scan manager can get the required resources Starts scan if scan manager can get the required resources No action No action Starts scan if scan manager can get the required resources No action
Scan and copy key pressed Copy key together press
No action Starts scanning copy, but will wait until the printer is ready Starts scanning copy, but will wait until the printer is ready No action No action Starts copy if copy manager can get the required resources No action
Printer reset
Resets the printer
Continuable error (Memory Out/Page Punt) Resetting Fatal Error Continuous Self Test Page
No action
Resets the printer
No action No action No action
No action No action Resets the printer
Scanner jam
No action
Resets the printer, scanner is still jammed Resets the printer Resets the printer, scanner may be in a jammed mode Resets the printer, scanner may be in a jammed mode
Scanner door open No action Scanning No action
No action
No action
Scan Abort, if paper No action is in the scanner results in a scanner jam If scan is still No action processing, scan is aborted. What was scanned is still printed. If paper is still in the scanner, results in a paper jam. No action No action
Quick Copying
After scan attempts to pick, but fails because ADF is empty
Scan Abort
No action
Resets the printer, scanner may be in a jammed mode
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Normal scanner operation
At power up or after a Control Panel reset, the scan motor rotates to verify it is ready for operation. Scan functionality is only available through computer software. A scan can be initiated two ways: from the computer or from the scanner Control Panel. When the scan key is pressed on the scanner, it sends a signal to the computer to let it know the firmware is ready to scan. The computer will either prompt the user to start the scan from the computer, or automatically start it, depending on how the Document Assistant is configured. When a scan job is initiated the scanner will pick up a page from the automatic document feeder (ADF), and then wait for the necessary resources to be acquired. The copy key functionality is always available, even when the printer is disconnected from the computer. When the copy key is pressed it starts the scan of the document from the ADF. If the scanner cannot get the resources it needs, it still picks the first page from the ADF to give the user feedback. When the resources needed to continue are acquired, the scan is started. This scan is passed directly to the printer as print data and printed. This is called a Quick Copy. As much as .75 inches may be clipped (discarded) depending on available memory. If memory resources are limited or the copy original exceeds the printer media by more than .75 inches, the remaining copy data will be printed to a second page with no data lost. At any time during a scan or Quick Copy the user can press both the scan and copy keys to abort the scan. If there is still a sheet of paper inside the scanner, it will enter the jam mode and the sheet of paper will have to be removed manually. If a Quick Copy occurs, the printer will still print any data it has received
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Printer paper handling
There are two vertical input paper trays: the Paper Input Bin and the Single Sheet Input Slot. With the vertical open trays, it is easier for the user to know exactly what paper is in the printer and when the printer is out of paper. There are two paper output paths: the vertical Paper Output Bin and the Front Output Slot in the front of the printer. The user may wish to use the Front Output Slot occasionally since it provides a straighter path and reduces curl.
The Paper Path Lever is located on the side of the printer. When the lever is pushed down, it allows the paper to exit through the Front Output Slot. If the lever is pushed up, the paper exits the printer to the Paper Output Bin.
Manual feed
Since the HP LaserJet 1100 Printer has only one paper input sensor, it cannot sense which input tray/slot the paper is in. Therefore, when manual feed has been selected, the printer pauses, waiting for the user to insert the correct paper into the printer (either in the Paper Input Bin or the Single Sheet Input Slot) and press the Go key. When the Go key is pressed, the paper is pulled from the Single Sheet Input Slot if paper is loaded there; otherwise, paper is pulled from the Paper Input Bin. Manual paper feed is normally set by a user's software application. A user can create a Manual Feed request by either sending the PCL Media Source escape sequence or setting the PJL MANUALFEED command. The printer's current PJL setting takes effect if the user has not overridden it with a PCL escape sequence. Otherwise the setting by the PCL escape sequence is used. When Manual Feed is selected, there may not be any immediate indication on the Control Panel. When the manual feed page has been processed and is ready to be printed, the Go key/LED will begin blinking and the Ready LED will turn off, indicating that the printer is requesting the user to place the correct paper in either the Single Sheet Input Slot or the Paper Input Bin and press the Go key. If the HP LaserJet 1100 Printer has no paper it will show the Paper Out mode (Attention LED on). When paper is loaded it will automatically pick the next page without the user having to press the Go key. If the printer is in a manual feed mode and the user unloads and then reloads paper, the HP LaserJet 1100 Printer will automatically pick the next page as well.
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Legal timing
Legal timing refers to the time between the first page picked and the second page picked. Legal timing is the time it takes for a Legal page to go through the engine's paper path. The HP LaserJet 1100 Printer may run at legal timing if manual feed is selected. If the first manual feed page is followed by a second manual feed page, the first manual feed page will run at legal timing. If a manual feed page is followed by a non-manual feed page, the manual feed page will run at engine speed.
Paper size change
The paper tray is merely a source for paper; it cannot detect the size of the paper. Therefore, the user must inform the printer what size paper is being used. This is normally done automatically by the user's software application. However, this can be done on a job-by-job basis by sending the PCL Page Size escape sequence or setting the PJL PAPER variable. The PCL escape sequence for paper size takes precedence over the PJL PAPER setting. The user may load a new size of paper and not modify the PJL or PCL variable. Therefore, the paper size may be too large or too small for the formatted page. The image that has been formatted will be placed on the sheet of paper and fed through the printer.
Scanner paper handling
The scanner can handle a slightly wider range of paper sizes than the print engine. It will have a single automatic document feeder (ADF) that supplies a single straight paper path. The ADF has no paper sensor, so the scanner will attempt a paper pickup to determine if the bin is empty or not. Therefore, when a job is started, it attempts to pick a page to make sure a page is available in the ADF. Once a job is started, the scanner continues to pick pages until the ADF is empty. The ADF has no ability to tell how wide the source page is, so page scan width has to be set from the computer.
Main input tray (ADF)
A center justified, vertical Paper Input Bin with a 20-sheet capacity adjustable to all supported paper and envelope sizes.
Output tray
None
Straight through paper path
Paper is output through the Front Output Slot in face-up, reverse order.
Priority feed
None
Supported paper and envelope sizes
Scan: Minimum 2 x 3.5 inches Maximum 8.5 x 30 inches
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Copy: Letter, Legal, A4, Executive Envelopes - Commercial 10, Monarch, C5, DL, B5, no custom Paper Input Sensor(s) None
Paper size change
As with the printer, the scanner has to receive paper size information on a job-by-job basis. There is an unchangeable default, but the scan width can be adjusted by the job. The scan length is determined by the media. Quick Copy paper sizes are set from the computer, except in an NVRAM initialization or initial power up when paper size is set to a factory default NVRAM value. This value is the same as the printer factory default paper size. If the media is larger than the Quick Copy page size or the print page size, clipping might occur.
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Toner cartridge information
The Toner Cartridge is designed to simplify replacement of the major "consumable" parts. The Toner Cartridge contains the printing mechanism and a supply of toner. At 5% page coverage, a Toner Cartridge will print approximately 10,000 pages. However, a Toner Cartridge should print more pages if regularly printing pages with less coverage, such as short memos. The cartridge may print fewer pages if heavy or bold print is used.
NOTE:
For best results, always use a Toner Cartridge before the expiration date stamped on the Toner Cartridge's box.
Refilled toner cartridges
While Hewlett-Packard does not prohibit the use of refilled Toner Cartridges during the warranty period or while the printer is under a maintenance contract, it is not recommended for the following reasons: · Repairs resulting from the use of refilled Toner Cartridges are not covered under Hewlett-Packard warranty or maintenance contracts. Hewlett-Packard has no control or process to ensure that a refilled Toner Cartridge functions at the high level of reliability of a new HP LaserJet Toner Cartridge. HewlettPackard also cannot predict what the long term reliability effect on the printer is from using different toner formulations found in refilled cartridges. The print quality of HP LaserJet Toner Cartridges influences the customer's perception of the printer. Hewlett-Packard has no control over the actual print quality of a refilled Toner Cartridge.
·
·
Recycling toner cartridges
In order to reduce waste, Hewlett-Packard offers a recycling program, called HP Planet Partners, for used Toner Cartridges. Cartridge components that do not wear out are recycled. Plastics and other materials are recycled. HP pays the shipping costs from the user to the recycling plant. To join this recycling effort, follow the instructions inside the Toner Cartridge's box.
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3
Functional Overview
Chapter contents
Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Control Unit (ECU)/power system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Formatter system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Image formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer paper feed system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Document scanner system (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic sequence of operation (formatter to printer) . . . . . . . . . . . . . . . . . . . . . . . 42 43 44 48 51 53 56 58
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Basic functions
This chapter presents a functional overview of the HP LaserJet 1100 Printer's processes. The following systems are discussed: · · · · · · engine controller unit (ECU) system/power system formatter system image formation system paper feed system (printer) and document feed system (optional document scanner) document scanner system (optional) optical system (located in the optional document scanner)
The HP LaserJet 1100 Printer consists of the printer and the document scanner (HP LaserJet 1100A Printer-Copier-Scanner). Operation sequences of the printer are controlled by the ECU. Operation sequences of the document scanner are controlled by the video controller.
Figure 3-1 Basic configuration
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Printer functions
Printer functions are divided into six groups: 1 2 3 4 5 6 ECU/power system formatter system image formation system printer paper feed system document scanner system basic sequence of operation (formatter to printer)
The following figure is a block diagram of the printer unit:
To external device (host computer, etc.) via video controller
LASER/SCANNER SYSTEM
Face-down delivery tray
Scanning mirror Laser diode Scanner motor BD circuit
ENGINE CONTROL SYSTEM
Engine controller PCB
Face-up delivery slot
Primary charging roller
Cleaner unit Fixing
Photosensitive drum
Transfer charging roller
Developing unit
Pick-up control
PICK-UP/FEED SYSTEM
Figure 3-2 Printer unit functional block diagram
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Manual feed slot
IMAGE FORMATION SYSTEM
Multi-purpose tray
Engine Control Unit (ECU)/power system
The Engine Control Unit (ECU) coordinates all print engine activities, drives the laser, and coordinates print data from the formatter with the image formation process. The ECU also includes power supply and distribution circuitry. The ECU controls the following systems and functions: · Printer engine control · printer laser/scanner drive · paper motion monitoring and control · motor · Power system · AC power distribution · DC power distribution · overvoltage/undervoltage protection · high-voltage power distribution
Figure 3-3 ECU loads
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Printer engine control system
Printer laser/scanner drive
Based on information received from the formatter, the ECU sends signals to the laser/ scanner assembly to modulate the laser diode "on" and "off" and to drive the laser/scanner motor. For more information, see "Image formation system" later in this chapter.
Paper motion monitoring and control
The ECU controls paper motion by continuously monitoring the various paper sensors and coordinating the timing with the other print processes. For a detailed explanation of paper movement, and the interaction of photosensors and solenoid with the paper movement process, see "Printer paper feed system."
Motor
The motor is controlled by the ECU. The motor provides all of the printer's paper movement.
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Power system on ECU
The AC, DC, and high-voltage power supply circuits are all contained within the ECU.
AC power distribution
The AC power circuitry supplies AC voltage whenever the power cord is connected to the AC power source. AC voltage is distributed to the DC power supply circuitry and to the AC driver circuitry, which controls AC voltage to the fusing assembly's heating element.
DC power distribution
The DC power distribution circuitry, located on the ECU, distributes +3.3 V DC, +5 V DC and +24 V DC as follows:
Table 3-1. DC power distribution
+3.3 V DC Formatter Laser/Beam Detect Circuitry ECU Formatter Photosensors ECU Laser/Beam Detect Circuitry Motor Laser Scanner Motor Document Scanner Motor Solenoid Formatter High Voltage Power Supply
+5 V DC:
+24 V DC:
+24VA DC:
Overcurrent/overvoltage
There are two overvoltage devices in this printer: · Fuse F101 provides overcurrent protection for the fusing system circuitry. To check or replace the fuse requires the removal of the ECU. Fuse F102 (found only on 110V units) provides overcurrent protection to the printer DC power supply circuitry. In addition, the +24V DC, +3.3 V DC, and +5V DC power circuitry contains an overcurrent protection circuit which automatically shuts off the output voltage when an overcurrent condition occurs due to a short or abnormal voltage on the load side.
·
High-voltage power distribution
The high-voltage power supply PCA applies an overlap of DC and AC voltage to the primary charging roller and the developing roller. This circuit also applies a positive or negative DC voltage to the transfer roller according to the instructions from the ECU.
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This circuit also controls the image density by changing the primary AC voltage and the developing AC bias according to the print density setting. High voltage is disabled when the printer door is open.
Figure 3-4 High-voltage power supply circuit
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Formatter system
The formatter is responsible for the following: · · · · · · controlling the optional document scanner formatting and controlling copies receiving and processing print data from the printer interface monitoring the control panel and relaying printer status information developing and coordinating data placement and timing with the print engine communicating with the host computer through the bidirectional interface
The formatter receives print data from the bidirectional Extended Capabilities Port (ECP) mode interface and converts it into a dot image. The ECU synchronizes the image formation system with the paper feed system and signals the formatter to send the print image data. The formatter sends the print image data (dots) in the form of a video signal and the printing process begins.
Central processing unit
The formatter incorporates an MCF5202 custom microprocessor operating at 35 megahertz (MHz).
Random-access memory (RAM)
· · One bank of Non-Volatile RAM (NVRAM) stores parameters DRAM (Dynamic RAM) provides temporary storage of copy, scan, and print data
Parallel interface
The formatter receives incoming data through its ECP interface. This interface provides high speed and two-way communication between the printer and the host, allowing the user to change printer settings and monitor printer status from the host computer.
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Control panel
· · Three front panel status lights (one contained in the Go key) Go key
Draft mode
Depending on which printer driver is used, selecting "draft" or EconoMode from the printer driver allows the HP LaserJet 1100 Printer to use approximately 50% less toner, extending the life of the toner cartridge.
Memory Enhancement technology (MEt)
The Hewlett-Packard Memory Enhancement technology (MEt) effectively doubles the standard memory through a variety of font and data compression methods.
Enhanced I/O
The Enhanced I/O feature allows printer memory to be used for storing data received from the host computer. When Enhanced I/O is enabled, you can send more data to the printer in shorter amounts of time, which allows you to return to your application sooner. Enhanced I/O has the following options: · Auto - Allows the printer to use Enhanced I/O memory allocating to increase the speed of data transfer from the host computer to the printer, if necessary. Off - Uses the minimum amount of printer memory for storing data sent from the host computer.
·
Page Protect
Page complexity (rules, complex graphics, or dense text) may exceed the printer's ability to create the page image fast enough to keep pace with the Image Formation process. If Page Protect is disabled and a page is too complex, the page may print in parts (for example, the top half on one page and the bottom half on the next page). Some print data loss is likely in these instances, and the printer will display an error message. Page Protect allows the Formatter to create the entire page image in page buffer memory before physically moving the paper through the printer. This process ensures that the entire page will be printed. The default set