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hp color LaserJet
3500/3550 and 3700 service
series printer
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HP Color LaserJet 3500/3550 and 3700 series printers Service Manual
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© 2004 Copyright Hewlett-Packard Trademark Credits Development Company, L.P. Microsoft® is a U.S. registered trademark Reproduction, adaptation or translation of Microsoft Corporation. without prior written permission is MS-DOS® is a U.S. registered trademark prohibited, except as allowed under the of the Microsoft Corporation. copyright laws. *Pantone®, Inc.'s check-standard The information contained herein is subject trademark for color. to change without notice. PostScript® is a trademark of
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Conventions This manual uses the following conventions: Color is used to emphasize items that are important to the material under discussion. Bold is used for menu items to click and for emphasis, particularly in situations where italic type would be confusing. Italic type is used to indicate related documents or emphasis. DISPLAY type indicates text as seen on the printer control panel display. Commands you use on a computer keyboard or on the printer control panel are shown in Keycap. Two exam
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Table of contents 1 Printer description Chapter contents .......................................................................................................................1 Printer configurations ................................................................................................................3 HP Color LaserJet 3500/3550 printer .................................................................................3 HP Color LaserJet 3500n/3550n printer ............................
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Canadian DOC regulations ...............................................................................................37 EMI statement (Korea) .....................................................................................................37 VCCI statement (Japan) ...................................................................................................37 Laser statement for Finland ..............................................................................................38 F
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Installing memory and font DIMMs .........................................................................................79 Enabling memory ..............................................................................................................83 Enabling the language font DIMM (HP color LaserJet 3700 only) ...................................83 Checking DIMM installation (HP color LaserJet 3700 only) .............................................84 Installing an HP Jetdirect print server c
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Paper feeder ..........................................................................................................................197 Pickup/delivery sequence ...............................................................................................198 Paper jam detection ........................................................................................................199 6 Removal and replacement Chapter contents ..................................................................
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Fuser front paper sensor (PS6) removal ........................................................................256 Fuser delivery paper sensor (PS7) removal ...................................................................256 Face-down delivery paper sensor (PS8) removal ..........................................................257 Reversed paper sensor (PS9) removal (HP 3700 only) .................................................257 Duplex feed delivery paper sensor (PS10) removal (HP 3700 on
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7 Troubleshooting Chapter contents ...................................................................................................................303 Introduction ............................................................................................................................306 Troubleshooting process .......................................................................................................307 Pre-troubleshooting checklist ............................................
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Image defects ........................................................................................................................390 Light image ....................................................................................................................391 Light color .......................................................................................................................392 Dark image .................................................................................
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Event log .........................................................................................................................431 Diagnostics ............................................................................................................................433 Diagnostics flowchart ......................................................................................................433 Engine diagnostics ..............................................................................
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List of tables Table 1-1. Features ............................................................................................................6 Table 1-2. Electrical specifications ...................................................................................12 1 Table 1-3. Power consumption for 110 and 220-volt (average in watts) ........................12 Table 1-4. Environmental specifications ..........................................................................13 Table 1-5. Supply
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Table 7-16. Image defects ................................................................................................390 Table 7-17. Causes for light images .................................................................................391 Table 7-18. Causes for one color printing light ................................................................392 Table 7-19. Causes for dark images ................................................................................392 Table 7-20. Causes
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Table 8-22. Left swing frame assembly ...........................................................................529 Table 8-23. Fuser assembly .............................................................................................531 Table 8-24. 500-Sheet paper feeder main body ..............................................................533 Table 8-25. 500-Sheet paper feeder paper pick-up drive assembly ................................535 Table 8-26. 500-Sheet paper feeder tray (Tray 3)
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List of figures Figure 1-1. HP Color LaserJet 3500/3550 printer ...............................................................3 Figure 1-2. HP Color LaserJet 3500n/3550n printer ...........................................................3 Figure 1-3. HP Color LaserJet 3700 printer ........................................................................4 Figure 1-4. HP Color LaserJet 3700n printer ......................................................................4 Figure 1-5. HP Color LaserJ
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Figure 5-20. Laser/scanner unit .........................................................................................139 Figure 5-21. Laser control block diagram ..........................................................................141 Figure 5-22. Image mask control .......................................................................................143 Figure 5-23. Scanner motor control ...................................................................................144 Figure 5-24
