HP LaserJet 1320 series Service Manual

service hp LaserJet 1160 printer hp LaserJet 1320 series printer

HP LaserJet 1160 printer and HP LaserJet 1320 Series printer Service Manual

Copyright information © 2004 Copyright Hewlett-Packard Development Company, L.P. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Part number Q5927-90901 Edition 1, 9/2004 Safety information WARNING! Potential Shock Hazard Always follow basic safety precautions when using this product to reduce risk of injury from fire or electric shock. Read and understand all instructions in the user guide. Observe all warnings and instructions marked on the product. Use only a grounded electrical outlet when connecting the printer to a power source. If you do not know whether the outlet is grounded, check with a qualified electrician. Do not touch the contacts on the end of any of the sockets on the printer. Replace damaged cords immediately. Unplug this product from wall outlets before cleaning. Do not install or use this product near water or when you are wet. Install the product securely on a stable surface. Install the product in a protected location where no one can step on or trip over the power cord and where the power cord will not be damaged. If the product does not operate normally, see the online user guide. Refer all servicing questions to qualified personnel. Information regarding FCC Class B, Parts 15 and 68 requirements can be found in the user guide. Trademark credits Adobe®, Acrobat®, Adobe® PostScript® 3™, and the Acrobat Logo® are trademarks of Adobe Systems Incorporated. Microsoft®, Windows®, and Windows NT® are U.S. registered trademarks of Microsoft Corporation. UNIX® is a registered trademark of The Open Group. Energy Star® and the Energy Star logo® are U.S. registered marks of the United States Environmental Protection Agency.

Table of contents 1 Product Information Chapter contents........................................................................................................................ 1 Printer configurations.................................................................................................................2 HP LaserJet 1160 and HP LaserJet 1320 Series printers base models............................. 3 Features.....................................................................................................................................4 HP LaserJet 1160 printer.....................................................................................................4 HP LaserJet 1320 Series printer.........................................................................................4 HP LaserJet 1320n printer...................................................................................................5 HP LaserJet 1320tn printer..................................................................................................5 HP LaserJet 1320nw printer................................................................................................ 5 Specifications.............................................................................................................................6 Physical specifications ........................................................................................................6 Printer capacities and ratings .............................................................................................6 Memory specifications ........................................................................................................7 Port availability ....................................................................................................................7 Electrical specifications ......................................................................................................8 Acoustic emissions .............................................................................................................9 Environmental specifications ............................................................................................ 10 Print media specifications .......................................................................................................11 Supported media sizes ..................................................................................................... 11 Hewlett-Packard limited warranty statement ..........................................................................12 Hewlett-Packard software license agreement ........................................................................13 Print cartridge limited warranty ...............................................................................................14 HP LaserJet printing supplies .................................................................................................15 Declaration of Conformity statements ..................................................................................... 16 Country/region-specific safety statements .............................................................................. 18 Laser safety statement .....................................................................................................18 Canadian DOC regulations ...............................................................................................18 Korean EMI statement ...................................................................................................... 18 Laser statement for Finland .............................................................................................. 19 2 Installation Chapter contents...................................................................................................................... 21 Operating environment ............................................................................................................22 Printer connections .................................................................................................................23 Software...................................................................................................................................25 Supported operating systems ...........................................................................................25 Software for Windows .......................................................................................................25 Software for Macintosh computers ................................................................................... 27 3 Operation Chapter contents...................................................................................................................... 31 Printer control panel ................................................................................................................ 32 Status-light patterns ................................................................................................................33 ENWW iii

Printer information pages ........................................................................................................ 39 Demo page .......................................................................................................................39 Configuration page ...........................................................................................................39 Supplies Status page ........................................................................................................39 Network Configuration page ............................................................................................. 39 Using the HP Toolbox .............................................................................................................40 Supported operating systems ...........................................................................................40 Supported browsers .........................................................................................................40 To view the HP Toolbox on Windows systems ................................................................40 To view the HP Toolbox on Macintosh systems ..............................................................41 HP Toolbox sections .........................................................................................................41 Other links .........................................................................................................................41 Status tab ..........................................................................................................................41 Troubleshooting tab .......................................................................................................... 41 Alerts tab ...........................................................................................................................42 Documentation tab ...........................................................................................................42 Advanced Printer Settings window ................................................................................... 42 Network window ................................................................................................................43 Using the embedded Web server ...........................................................................................44 To open the embedded Web server ................................................................................. 44 Information tab ..................................................................................................................45 Settings tab .......................................................................................................................45 Networking tab ..................................................................................................................45 Other links .........................................................................................................................46 Wireless printing ......................................................................................................................47 IEEE 802.11b/g standard .................................................................................................47 Bluetooth ...........................................................................................................................47 4 Maintenance Chapter contents...................................................................................................................... 49 Replacing the print cartridge....................................................................................................50 To replace the print cartridge.............................................................................................50 Cleaning the printer ................................................................................................................. 51 Cleaning the print-cartridge area ...................................................................................... 51 Cleaning the printer media path .......................................................................................53 Changing the pickup roller ......................................................................................................54 Cleaning the pickup roller ........................................................................................................60 Changing the printer separation pad .......................................................................................61 Cleaning the printer separation pad......................................................................................... 65 5 Theory of operation Chapter contents...................................................................................................................... 67 Introduction...............................................................................................................................68 Internal components.................................................................................................................69 Timing.......................................................................................................................................70 Engine control system.............................................................................................................. 72 Laser/scanner system.............................................................................................................. 74 Pickup/feed/delivery system....................................................................................................75 Image-formation system...........................................................................................................77 6 Removal and replacement Chapter contents...................................................................................................................... 81 Introduction ..............................................................................................................................82 Removal and replacement strategy ..................................................................................82 iv ENWW

Electrostatic discharge .....................................................................................................82 User-replaceable parts .....................................................................................................82 Required tools ...................................................................................................................82 Before performing service ....................................................................................................... 83 Pre-service procedures ....................................................................................................83 Parts removal order ..........................................................................................................83 Covers...................................................................................................................................... 84 Left-side cover...................................................................................................................84 Right-side cover.................................................................................................................85 Back cover......................................................................................................................... 87 Duplexer tray.....................................................................................................................90 Top cover........................................................................................................................... 91 Control panel............................................................................................................................ 95 Formatter..................................................................................................................................97 Laser/scanner...........................................................................................................................98 Memory-tag-reader assembly..................................................................................................99 Duplex-drive PCA...................................................................................................................101 Fuser......................................................................................................................................103 Fan...................................................................................................................................103 Duplex-drive gears/face-down gears...............................................................................104 Duplex solenoid (SL3) (HP LaserJet 1320 Series printers only)..................................... 107 Fuser................................................................................................................................108 Interlock assembly.................................................................................................................119 ECU........................................................................................................................................121 Main motor.............................................................................................................................129 Pickup and feed assemblies..................................................................................................131 Transfer roller..................................................................................................................131 Registration assembly.....................................................................................................132 Main gear assembly/tray 2 pickup solenoid........................................................................... 133 Print-cartridge door................................................................................................................137 Wireless communications card..............................................................................................139 7 Troubleshooting Chapter contents.................................................................................................................... 141 Basic troubleshooting.............................................................................................................143 Paper-handling problems ...................................................................................................... 146 Paper jam .......................................................................................................................146 Print is skewed (crooked) ...............................................................................................146 More than one sheet of media feeds through the printer at one time ............................146 Printer does not pull media from the media input tray ...................................................147 Printer curled the media .................................................................................................147 Printed media does not exit to the correct path ..............................................................147 Print job is extremely slow .............................................................................................. 147 Paper-path troubleshooting....................................................................................................148 Solving print paper-feed problems..................................................................................148 Printed page is different than what appeared on screen ......................................................150 Garbled, incorrect, or incomplete text ............................................................................150 Missing graphics or text, or blank pages ........................................................................ 150 Page format is different than on another printer .............................................................151 Graphics quality .............................................................................................................. 151 Status light patterns ..............................................................................................................152 Fatal error secondary messages...........................................................................................158 Accessory error secondary messages................................................................................... 161 Troubleshooting postscript (PS) errors .................................................................................162 Image troubleshooting............................................................................................................163 ENWW v

Print cartridge problems..................................................................................................163 Solving image-quality problems .....................................................................................163 Clearing jams ........................................................................................................................172 Print-cartridge area ......................................................................................................... 172 Input trays ....................................................................................................................... 174 Output bin .......................................................................................................................177 Straight-through output path ...........................................................................................178 Automatic two-sided printing (duplexing) path ...............................................................180 Functional checks..................................................................................................................184 Engine test.......................................................................................................................184 Printing an engine test..................................................................................................... 184 Half self-test functional check..........................................................................................184 To perform a half self-test check.....................................................................................185 To perform other checks .................................................................................................185 Drum rotation functional check .............................................................................................186 Heating element check...........................................................................................................187 High-voltage contacts check..................................................................................................188 To check the print cartridge contacts ............................................................................188 To check the high-voltage connector assembly .............................................................188 Wired network setup problemsolving .................................................................................... 189 NVRAM initialization...............................................................................................................190 Cold reset............................................................................................................................... 191 Troubleshooting tools and reference diagrams.....................................................................192 Repetitive image defects.................................................................................................192 General timing chart........................................................................................................193 Circuit diagram.................................................................................................................194 Solenoids......................................................................................................................... 196 Switches and sensors......................................................................................................197 Rollers and pads..............................................................................................................198 8 Parts and diagrams Chapter contents.................................................................................................................... 199 Ordering parts and supplies .................................................................................................. 200 Parts ...............................................................................................................................200 Related documentation and software ............................................................................. 200 Supplies .......................................................................................................................... 200 Consumables and accessories..............................................................................................201 Assembly locations................................................................................................................204 Covers.................................................................................................................................... 208 Internal assemblies................................................................................................................210 Alphabetical parts list.............................................................................................................228 Numerical parts list.................................................................................................................232 Index vi ENWW

List of tables Table 1-1. Feature designations for HP LaserJet 1320 Series printers..............................2 Table 1-2. Physical specifications.......................................................................................6 Table 1-3. Printer capacities and ratings............................................................................. 6 Table 1-4. Memory..............................................................................................................7 Table 1-5. Port availability...................................................................................................7 Table 1-6. Electrical specifications, HP LaserJet 1160 printer ...........................................8 Table 1-7. Electrical specifications, HP LaserJet 1320 printer ...........................................8 Table 1-8. Electrical specifications, HP LaserJet 1320n printer ........................................8 Table 1-9. Electrical specifications, HP LaserJet 1320nw printer ......................................9 Table 1-10. Acoustic emissions, HP LaserJet 1160 printer .................................................9 Table 1-11. Acoustic emissions, HP LaserJet 1320 Series printer ......................................9 Table 1-12. Environmental specifications...........................................................................10 Table 2-1. Available printer drivers ...................................................................................26 Table 3-1. Light status legend ..........................................................................................33 Table 3-2. Control-panel-light message ...........................................................................33 Table 5-1. Sequence of operation..................................................................................... 70 Table 5-2. Power-on sequence.........................................................................................70 Table 7-1. Basic troubleshooting ................................................................................... 143 Table 7-2. Solving print paper-feed problems.................................................................148 Table 7-3. Light status legend ........................................................................................152 Table 7-4. Control panel light message..........................................................................152 Table 7-5. Fatal error secondary messages...................................................................158 Table 7-6. Accessory error secondary messages........................................................... 161 Table 7-7. PS errors .......................................................................................................162 Table 7-8. Solving print image-quality problems.............................................................164 Table 7-9. Repetitive image defects................................................................................ 192 Table 8-1. Technical support Web sites ......................................................................... 200 Table 8-2. Assembly locations (1 of 2)............................................................................ 205 Table 8-3. Assembly locations (2 of 2)............................................................................ 207 Table 8-4. Covers............................................................................................................ 209 Table 8-5. Internal components (1 of 4)..........................................................................211 Table 8-6. Internal components (2 of 4)..........................................................................213 Table 8-7. Internal components (3 of 4)..........................................................................215 Table 8-8. Internal components (4 of 4)..........................................................................217 Table 8-9. ECU assembly...............................................................................................219 Table 8-10. Duplex-drive assembly................................................................................... 221 Table 8-11. Top output bin gear assembly........................................................................223 Table 8-12. Tray 2 assembly............................................................................................. 225 Table 8-13. Duplexer......................................................................................................... 227 Table 8-14. Alphabetical parts list.....................................................................................228 Table 8-15. Numerical parts list.........................................................................................232 ENWW vii

viii ENWW

HP LaserJet 1320 series Service Manual

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