Text preview for : HP LaserJet M2727 MFP - Service Manual.pdf part of Hewlett-Packard LaserJet M2727 MFP HP LaserJet M2727 MFP Service Manual
Edition 1 - 11/2007
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HP LaserJet M2727 MFP Series
Service Manual
HP LaserJet M2727 MFP Series
Service Manual
Copyright information © 2007 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 CB532-90946 Edition 1, 11/2007
Safety information WARNING! Potential Shock Hazard Always follow basic safety precautions when using the 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 product 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 product. Replace damaged cords immediately. Unplug the product from wall outlets before cleaning. Do not install or use the 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 Microsoft® and Windows® are U.S. registered trademarks of Microsoft Corporation. Windows VistaTM is either a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries. Linux is a U.S. registered trademark of Linus Torvalds. UNIX® is a registered trademark of The Open Group. PostScript® is a trademark of Adobe Systems Incorporated. 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 Quick access to product information .................................................................................................... 2 Product comparison ............................................................................................................................. 3 Product features ................................................................................................................................... 4 Product walkaround .............................................................................................................................. 5 Front view ............................................................................................................................ 5 Back view ............................................................................................................................. 6 Interface ports ...................................................................................................................... 6 Control panel ....................................................................................................................... 7 Serial number and model number location ........................................................................................... 8 Software description ............................................................................................................................. 9 Supported operating systems .............................................................................................. 9 Supported printer drivers ..................................................................................................... 9 Software included with the product ...................................................................................... 9 Recommended installation for Windows ........................................................... 10 Express installation (USB or network) ............................................................... 10 Macintosh software ........................................................................................... 10 Software for Windows ........................................................................................................................ 12 HP ToolboxFX ................................................................................................................... 12 Embedded Web server (EWS) .......................................................................................... 12 Software for Macintosh ....................................................................................................................... 13 HP Director ........................................................................................................................ 13 Macintosh Configure Device (Mac OS X v10.3, v10.4, and later) ..................................... 13 PDEs (Mac OS X v10.3, v10.4, and later) ......................................................................... 14 Uninstall software ............................................................................................................................... 15 Windows ............................................................................................................................ 15 Macintosh .......................................................................................................................... 15 Media specifications ........................................................................................................................... 16 Supported paper and print media sizes ............................................................................. 16 Media to avoid ................................................................................................................... 17 Media that can damage the product .................................................................................. 17 2 Installation Operating environment ....................................................................................................................... 20 Minimum system requirements .......................................................................................... 21 Unpack the product ............................................................................................................................ 22 Install input devices ............................................................................................................................ 23 ADF input tray .................................................................................................................... 23 250-sheet input tray (tray 3) ............................................................................................... 24
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Install the control-panel faceplate ....................................................................................................... 25 Load paper and print media ............................................................................................................... 26 Load documents to fax, copy, or scan ............................................................................... 26 Tray 1 ................................................................................................................................. 27 Tray 2 or 3 ......................................................................................................................... 28 Configure trays .................................................................................................................. 29 Change tray selection ........................................................................................................ 29 Install memory DIMMs ........................................................................................................................ 30 Information ......................................................................................................................... 30 Install a memory DIMM ..................................................................................................... 30 3 Maintenance Manage supplies ................................................................................................................................ 34 Life expectancies of supplies and the product ................................................................... 34 Order supplies ................................................................................................................... 34 Store print cartridges ......................................................................................................... 35 Replace and recycle supplies ............................................................................................ 35 Replace print cartridge ....................................................................................................... 37 Load staples ...................................................................................................................... 39 Replace the tray 2 pickup roller ......................................................................................... 40 Replace the tray 2 and optional tray 3 separation pad ...................................................... 45 HP policy on non-HP supplies ........................................................................................... 48 Reset the product for non-HP supplies ............................................................. 48 HP fraud hotline ................................................................................................................. 48 Clean the product ............................................................................................................................... 49 Clean the exterior .............................................................................................................. 49 Clean the flatbed scanner glass ........................................................................................ 49 Clean the scanner-cover backing ...................................................................................... 51 Clean the tray 2 pickup roller ............................................................................................ 52 Clean the ADF pickup-roller assembly .............................................................................. 55 Clean the paper path ......................................................................................................... 56 Clean the paper path from HP ToolboxFX ........................................................ 57 Clean the paper path from the product control panel ........................................ 57 Manage the product ........................................................................................................................... 58 HP ToolboxFX ................................................................................................................... 58 View the HP ToolboxFX .................................................................................... 58 Status ................................................................................................................ 58 Event log ........................................................................................... 59 Alerts ................................................................................................................. 59 Set up status alerts ........................................................................... 59 Set up e-mail alerts ........................................................................... 59 Fax .................................................................................................................... 59 Fax tasks .......................................................................................... 60 Fax phone book ................................................................................ 60 Fax send log ..................................................................................... 62 Fax receive log ................................................................................. 62 Help (Documentation) ....................................................................................... 62 System settings ................................................................................................. 63 Device information ............................................................................ 63 Paper handling ................................................................................. 64
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Print quality ....................................................................................... 64 Paper types ...................................................................................... 64 System setup .................................................................................... 65 Service .............................................................................................. 65 Device Polling ................................................................................... 65 Print settings ..................................................................................................... 65 Printing ............................................................................................. 65 PCL 5e .............................................................................................. 66 PostScript ......................................................................................... 66 Network settings ................................................................................................ 66 Embedded Web server ...................................................................................................... 66 Features ............................................................................................................ 66 Secure the embedded Web server ................................................................... 67 Macintosh Configure Device (Mac OS X v10.3, v10.4, and later) ..................................... 67 4 Theory of operation Basic operation ................................................................................................................................... 70 Sequence of operation for the base unit ............................................................................ 70 Scanner and ADF functions and operation ........................................................................................ 72 Scanner functions ............................................................................................................. 72 Scanner operation ............................................................................................................. 73 ADF operation .................................................................................................................... 73 ADF paper path and ADF sensors ..................................................................................... 74 ADF jam detection ............................................................................................................. 75 Internal components (base unit) ......................................................................................................... 76 Engine control system ........................................................................................................................ 78 Laser/scanner system ........................................................................................................................ 80 Pickup/feed/delivery system ............................................................................................................... 81 Image-formation system .................................................................................................................... 83 Fax functions and operation .............................................................................................................. 87 Computer and network security features ........................................................................... 87 PSTN operation ................................................................................................................. 87 Receive faxes when you hear fax tones ............................................................................ 87 Distinctive ring function ...................................................................................................... 88 Fax by using Voice over IP services .................................................................................. 88 The fax subsystem ............................................................................................................. 89 Fax card in the fax subsystem ........................................................................................... 89 Safety isolation .................................................................................................. 89 Safety-protection circuitry .................................................................................. 89 Data path ........................................................................................................... 90 Hook state ......................................................................................................... 90 Downstream device detection ........................................................................... 90 Hook switch control ........................................................................................... 90 Ring detect ........................................................................................................ 91 Line current control ........................................................................................... 91 Billing- (metering-) tone filters ........................................................................... 91 Fax page storage in flash memory .................................................................................... 91 Stored fax pages ............................................................................................... 91 Advantages of flash memory storage ............................................................... 91
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5 Removal and replacement Introduction ......................................................................................................................................... 94 Removal and replacement strategy .................................................................................. 94 Electrostatic discharge ....................................................................................................... 94 User-replaceable parts ...................................................................................................... 94 Required tools ................................................................................................................... 95 Before performing service .................................................................................................. 95 After performing service ..................................................................................................... 96 Post-service tests .............................................................................................................. 96 Test 1 (print-quality test) ................................................................................... 96 Test 2 (copy-quality test) ................................................................................... 96 Test 3 (fax-quality test) ...................................................................................... 97 Parts removal order ........................................................................................................... 98 Remove the print cartridge ................................................................................................ 99 External panels, covers, and doors .................................................................................................. 100 Right cover ....................................................................................................................... 100 Left cover ......................................................................................................................... 102 Print-cartridge door .......................................................................................................... 104 Rear cover ....................................................................................................................... 106 Top cover ......................................................................................................................... 108 Replace the ADF pickup-roller assembly ......................................................................................... 110 ADF scanner glass ........................................................................................................................... 113 ADF assembly .................................................................................................................................. 115 Scanner/ADF assembly .................................................................................................................... 117 Bezel and control panel .................................................................................................................... 119 Internal assemblies .......................................................................................................................... 122 Convenience-stapler assembly (HP LaserJet M2727nfs only) ........................................ 122 Convenience-stapler power supply (HP LaserJet M2727nfs only) .................................. 124 Convenience-stapler AC inlet cable (HP LaserJet M2727nfs only) ................................. 126 Convenience-stapler power supply bracket and strap (HP LaserJet M2727nfs only) ..... 127 Speaker ........................................................................................................................... 128 Power-switch PCA ........................................................................................................... 130 Formatter ......................................................................................................................... 132 Duplex assembly ............................................................................................................. 135 Laser/scanner (print engine) ............................................................................................ 137 Memory-tag-reader assembly (E-label reader) ................................................................ 139 Fan ................................................................................................................................... 141 Duplex-drive gears ........................................................................................................... 143 Duplex solenoid ............................................................................................................... 145 Fuser ................................................................................................................................ 147 Interlock assembly ........................................................................................................... 152 Engine controller assembly (ECU) ................................................................................... 153 Main motor ....................................................................................................................... 158 Pickup-and-feed assemblies ............................................................................................ 160 Transfer roller .................................................................................................. 160 Registration-roller assembly ............................................................................................ 161 Main gear assembly and tray 2 pickup solenoid .............................................................. 162 6 Solve problems Problem-solving checklist ................................................................................................................. 166
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Control-panel messages .................................................................................................................. 169 Alert and warning messages .......................................................................................... 169 Alert and warning message tables .................................................................. 169 Critical error messages .................................................................................................... 177 Critical error message-tables .......................................................................... 177 Clear jams ........................................................................................................................................ 179 Causes of jams ................................................................................................................ 179 Where to look for jams ..................................................................................................... 180 Clear jams from the ADF ................................................................................................. 180 Clear jams from the input-tray areas ............................................................................... 182 Clear jams from the duplexer ........................................................................................... 184 Clear jams from the output-bin areas .............................................................................. 186 Top (face-down) output bin ............................................................................. 186 Rear (face-up) output bin ................................................................................ 187 Clear jams from the print-cartridge area .......................................................................... 188 Clear jams from the convenience stapler (HP LaserJet M2727nfs MFP only) ................ 189 Avoid repeated jams ....................................................................................................... 190 Control-panel menus ........................................................................................................................ 191 Use the control-panel main menus .................................................................................. 191 Control-panel main menus ............................................................................................... 191 Control-panel secondary menus ...................................................................................... 199 Use the control-panel secondary menus ......................................................... 199 Control-panel secondary menus ..................................................................... 199 Print problems .................................................................................................................................. 204 Print-quality problems ...................................................................................................... 204 Improve print quality ........................................................................................ 204 Print-quality settings ....................................................................... 204 Identify and correct print defects ..................................................................... 205 Print-quality checklist ...................................................................... 205 General print-quality issues ............................................................ 205 Scan problems ................................................................................................................................. 211 Solve scanned-image problems ...................................................................................... 211 Scan-quality problems ..................................................................................................... 213 Prevent problems ............................................................................................ 213 Solve scan-quality problems ........................................................................... 213 Copy problems ................................................................................................................................. 214 Prevent problems ............................................................................................................. 214 Image problems ............................................................................................................... 214 Media-handling problems ................................................................................................ 215 Performance problems .................................................................................................... 217 Fax problems .................................................................................................................................... 218 General fax problem-solve ............................................................................................... 218 Problems receiving faxes ................................................................................................. 219 Problems sending faxes .................................................................................................. 222 Voice-call problems ......................................................................................................... 224 Media-handling problems ................................................................................................ 225 Performance problems .................................................................................................... 226 Control-panel display problems ........................................................................................................ 227 Convenience-stapler problems (HP LaserJet M2727nfs only) ......................................................... 227 DSL problems ................................................................................................................................... 228
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PABX line problems ......................................................................................................... 228 ADF problems .................................................................................................................................. 229 Functional checks ............................................................................................................................. 230 Drum rotation test ............................................................................................................ 230 Engine test ....................................................................................................................... 231 Half self-test functional check .......................................................................................... 232 Perform a half self-test check .......................................................................................... 232 Perform other checks ....................................................................................................... 232 Heating element check .................................................................................................... 233 High-voltage contacts check ............................................................................................ 233 Check the print-cartridge contacts ................................................................ 233 Check the high-voltage connector assembly ................................................. 234 Service-mode functions .................................................................................................................... 235 NVRAM initialization ........................................................................................................ 235 Super NVRAM initialization .............................................................................................. 235 Service menu ................................................................................................................... 235 Problem-solve tools .......................................................................................................................... 237 Product information pages and reports ............................................................................ 237 Configuration page .......................................................................................... 237 Supplies Status page ...................................................................................... 237 PCL, PCL 6, or PS font list .............................................................................. 237 Demo page ...................................................................................................... 238 Usage page ..................................................................................................................... 238 Menu map ........................................................................................................................ 238 Network report ................................................................................................................. 238 Fax reports ....................................................................................................................... 239 Fax activity log ................................................................................................ 239 Fax call report ................................................................................................. 239 Phone book report ........................................................................................... 239 Billing-code report ........................................................................................... 240 HP ToolboxFX ................................................................................................................. 240 To view HP ToolboxFX ................................................................................... 240 Troubleshooting tab ........................................................................................ 240 Service menu .................................................................................................................. 241 Restore the factory-set defaults ...................................................................... 241 Clean the paper path ....................................................................................... 241 T.30 protocol trace .......................................................................................... 242 Archive print .................................................................................................... 242 Firmware updates ............................................................................................................................. 243 Firmware update by using a flash executable file ............................................................ 243 7 Parts Accessories and ordering information .............................................................................................. 247 Supplies ............................................................................................................................................ 248 Memory ............................................................................................................................................ 248 Cable and interface accessories ...................................................................................................... 248 Paper-handling accessories ............................................................................................................ 249 Whole unit replacement .................................................................................................................... 250 Scanner/ADF replacement parts ...................................................................................................... 254 Control-panel bezels ........................................................................................................................ 255
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Supplementary documentation and support ..................................................................................... 257 Problem-solve diagrams ................................................................................................................... 259 Repetitive image defects ................................................................................................. 259 Interface connectors ....................................................................................................... 260 Formatter connectors ....................................................................................................... 260 Fax card ........................................................................................................................... 261 Solenoids ......................................................................................................................... 262 Switches and sensors ...................................................................................................... 263 Rollers and pads .............................................................................................................. 264 PCAs (base unit) .............................................................................................................. 265 Major components (base unit) ......................................................................................... 266 Scanner and ADF ............................................................................................................ 267 Circuit diagram (1 of 2) .................................................................................................... 268 Circuit diagram (2 of 2) .................................................................................................... 268 Parts lists and diagrams ................................................................................................................... 270 Types of screws ............................................................................................................... 271 Scanner and ADF assemblies .......................................................................................................... 272 Scanner components ....................................................................................................................... 274 ADF components .............................................................................................................................. 276 Convenience stapler components (HP LaserJet M2727nfs only) .................................................... 278 Formatter, fax card, HP jewel, and nameplate ................................................................................. 280 External covers and panels .............................................................................................................. 282 Cartridge door assembly .................................................................................................................. 284 Internal components (1 of 4) ............................................................................................................ 286 Internal components (2 of 4) ............................................................................................................ 288 Internal components (3 of 4) ............................................................................................................ 290 Internal components (4 of 4) ............................................................................................................ 292 Engine-controller assembly (ECU) ................................................................................................... 294 Main-drive assembly ........................................................................................................................ 296 Duplexing-drive assembly ................................................................................................................ 298 Tray 2 cassette and tray 3 cassette/feeder ...................................................................................... 300 Duplexing assembly ......................................................................................................................... 302 Fuser assembly ................................................................................................................................ 304 Alphabetical parts list ....................................................................................................................... 306 Numerical parts list ........................................................................................................................... 312 Appendix A Service and support Hewlett-Packard limited warranty statement .................................................................................... 319 Print cartridge limited warranty statement ........................................................................................ 321 Appendix B Specifications Physical specifications ..................................................................................................................... 324 Electrical specifications .................................................................................................................... 324 Power consumption .......................................................................................................................... 324 Environmental specifications ............................................................................................................ 325 Acoustic emissions ........................................................................................................................... 325 Appendix C Regulatory information FCC compliance ............................................................................................................................... 328
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Environmental product stewardship program ................................................................................... 329 Protecting the environment .............................................................................................. 329 Ozone production ............................................................................................................ 329 Power consumption ......................................................................................................... 329 Toner consumption .......................................................................................................... 329 Paper use ........................................................................................................................ 329 Plastics ............................................................................................................................ 329 HP LaserJet print supplies ............................................................................................... 329 Return and recycling instructions ..................................................................................... 330 United States and Puerto Rico ........................................................................ 330 Multiple returns (two to eight cartridges) ........................................ 330 Single returns ................................................................................. 330 Shipping .......................................................................................... 330 Non-US returns ............................................................................................... 330 Paper ............................................................................................................................... 330 Material restrictions .......................................................................................................... 330 Disposal of waste equipment by users in private households in the European Union .... 331 Material Safety Data Sheet (MSDS) ................................................................................ 331 For more information ....................................................................................................... 332 Telephone Consumer Protection Act (United States) ...................................................................... 333 IC CS-03 requirements ..................................................................................................................... 333 EU statement for telecom operation ................................................................................................. 334 New Zealand telecom statements .................................................................................................... 334 Declaration of conformity .................................................................................................................. 335 Safety statements ............................................................................................................................. 336 Laser safety ..................................................................................................................... 336 Canadian DOC regulations .............................................................................................. 336 EMI statement (Korea) ..................................................................................................... 336 Laser statement for Finland ............................................................................................. 337 Substances table (China) ................................................................................................ 338 Index ................................................................................................................................................................. 339
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List of tables
Table 1-1 Table 1-2 Table 1-3 Table 1-4 Table 1-5 Table 4-1 Table 4-2 Table 6-1 Table 6-2 Table 6-3 Table 6-4 Table 6-5 Table 6-6 Table 6-7 Table 6-8 Table 6-9 Table 6-10 Table 6-11 Table 6-12 Table 7-1 Table 7-2 Table 7-3 Table 7-4 Table 7-5 Table 7-6 Table 7-7 Table 7-8 Table 7-9 Table 7-10 Table 7-11 Table 7-12 Table 7-13 Table 7-14 Table 7-15 Table 7-16 Table 7-17 Table 7-18 Table 7-19 Table 7-20
Product guides ................................................................................................................................... 2 Supported printer drivers .................................................................................................................... 9 Supported paper and print media sizes ........................................................................................... 16 Supported envelopes and postcards ............................................................................................... 17 ADF .................................................................................................................................................. 17 Sequence of operation ..................................................................................................................... 70 Power-on sequence ......................................................................................................................... 71 Alert and warning messages ......................................................................................................... 169 Alert and warning messages ......................................................................................................... 172 Critical error messages .................................................................................................................. 177 Fax Job status menu ...................................................................................................................... 191 Fax functions menu ........................................................................................................................ 191 Copy setup menu ........................................................................................................................... 192 Reports menu ................................................................................................................................. 193 Fax setup menu ............................................................................................................................. 194 System setup menu ....................................................................................................................... 197 Service menu ............................................................................................................................... 199 Secondary service menu .............................................................................................................. 200 Developer's menu ........................................................................................................................ 201 Whole unit replacement, product bundle CB532A ......................................................................... 250 Whole unit replacement, product bundle CB533A ......................................................................... 252 Control-panel bezels ...................................................................................................................... 255 Service and training support .......................................................................................................... 257 User guides .................................................................................................................................... 257 Getting started guide ...................................................................................................................... 258 Technical support Web sites .......................................................................................................... 258 Repetitive image defects ................................................................................................................ 259 Interface connectors ....................................................................................................................... 260 Formatter connectors ................................................................................................................... 260 Fax card ....................................................................................................................................... 261 Solenoids ..................................................................................................................................... 262 Switches and sensors .................................................................................................................. 263 Rollers and pads .......................................................................................................................... 264 PCAs (base unit) .......................................................................................................................... 265 Major components (base unit) ..................................................................................................... 266 Scanner and ADF ......................................................................................................................... 267 Scanner and ADF assemblies ..................................................................................................... 273 Scanner components ................................................................................................................... 275 ADF components ......................................................................................................................... 277
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Table 7-21 Table 7-22 Table 7-23 Table 7-24 Table 7-25 Table 7-26 Table 7-27 Table 7-28 Table 7-29 Table 7-30 Table 7-31 Table 7-32 Table 7-33 Table 7-34 Table 7-35 Table 7-36 Table B-1 Table B-2 Table B-3 Table B-4 Table B-5
Convenience stapler components (HP LaserJet M2727nfs only) ................................................ 279 Formatter, Fax card, HP jewel, and nameplate ........................................................................... 281 External covers and panels .......................................................................................................... 283 Cartridge door assembly .............................................................................................................. 285 Internal components (1 of 4) ........................................................................................................ 287 Internal components (2 of 4) ........................................................................................................ 289 Internal components (3 of 4) ........................................................................................................ 291 Internal components (4 of 4) ........................................................................................................ 293 Engine-controller assembly .......................................................................................................... 295 Main-drive assembly .................................................................................................................... 297 Duplexing-drive assembly ............................................................................................................ 299 Tray 2 cassette and tray 3 cassette/feeder .................................................................................. 301 Duplexing assembly ..................................................................................................................... 303 Fuser assembly ............................................................................................................................ 305 Alphabetical parts list ................................................................................................................... 306 Numerical parts list ....................................................................................................................... 312 Physical specifications ................................................................................................................... 324 Electrical specifications .................................................................................................................. 324 Power consumption (average, in watts), ...................................................................................... 324 Environmental specifications ........................................................................................................ 325 Acoustic emissions ....................................................................................................................... 325
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List of figures
Figure 2-1 Figure 2-2 Figure 2-3 Figure 2-4 Figure 2-5 Figure 2-6 Figure 2-7 Figure 2-8 Figure 3-1 Figure 3-2 Figure 3-3 Figure 3-4 Figure 3-5 Figure 3-6 Figure 3-7 Figure 3-8 Figure 3-9 Figure 3-10 Figure 3-11 Figure 3-12 Figure 3-13 Figure 3-14 Figure 3-15 Figure 3-16 Figure 3-17 Figure 3-18 Figure 3-19 Figure 3-20 Figure 3-21 Figure 3-22 Figure 3-23 Figure 3-24 Figure 3-25 Figure 3-26 Figure 3-27 Figure 4-1 Figure 4-2 Figure 4-3 Figure 4-4
Operating environment ................................................................................................................... 20 HP LaserJet M2727 MFP package contents .................................................................................. 22 Install the ADF input tray ................................................................................................................. 23 Install the 250-sheet input tray ........................................................................................................ 24 Install the control-panel faceplate ................................................................................................... 25 Load a document onto the flatbed scanner .................................................................................... 26 Load documents into the ADF (1 of 2) ............................................................................................ 27 Load documents into the ADF (2 of 2) ............................................................................................ 27 Replace the tray 2 pickup roller (1 of 7) .......................................................................................... 40 Replace the tray 2 pickup roller (2 of 7) .......................................................................................... 41 Replace the tray 2 pickup roller (3 of 7) .......................................................................................... 41 Replace the tray 2 pickup roller (4 of 7) .......................................................................................... 42 Replace the tray 2 pickup roller (5 of 7) .......................................................................................... 42 Replace the tray 2 pickup roller (6 of 7) .......................................................................................... 43 Replace the tray 2 pickup roller (7 of 7) .......................................................................................... 43 Replace the tray 2 or tray 3 separation pad (1 of 6) ....................................................................... 45 Replace the tray 2 or tray 3 separation pad (2 of 6) ....................................................................... 45 Replace the tray 2 or tray 3 separation pad (3 of 6) ..................................................................... 46 Replace the tray 2 or tray 3 separation pad (4 of 6) ..................................................................... 46 Replace the tray 2 or tray 3 separation pad (5 of 6) ..................................................................... 47 Replace the tray 2 or tray 3 separation pad (6 of 6) ..................................................................... 47 Clean the scanner glass (1 of 2) ................................................................................................... 49 Clean the scanner glass (2 of 2) ................................................................................................... 50 Clean the scanner-cover backing ................................................................................................. 51 Clean the tray 2 pickup roller (1 of 6) ............................................................................................ 52 Clean the tray 2 pickup roller (2 of 6) ............................................................................................ 52 Clean the tray 2 pickup roller (3 of 6) ............................................................................................ 52 Clean the tray 2 pickup roller (4 of 6) ............................................................................................ 53 Clean the tray 2 pickup roller (5 of 6) ............................................................................................ 53 Clean the tray 2 pickup roller (6 of 6) ............................................................................................ 54 Clean the ADF pickup-roller assembly (1 of 5) ............................................................................. 55 Clean the ADF pickup-roller assembly (2 of 5) ............................................................................. 55 Clean the ADF pickup-roller assembly (3 of 5) ............................................................................. 55 Clean the ADF pickup-roller assembly (4 of 5) ............................................................................. 56 Clean the ADF pickup-roller assembly (5 of 5) ............................................................................. 56 HP LaserJet M2727 MFP system block diagram ............................................................................ 70 Optical system ................................................................................................................................ 72 ADF paper path ............................................................................................................................... 74 Cross-section of printer ................................................................................................................... 76
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Figure 4-5 Figure 4-6 Figure 4-7 Figure 4-8 Figure 4-9 Figure 4-10 Figure 4-11 Figure 4-12 Figure 4-13 Figure 4-14 Figure 4-15 Figure 5-1 Figure 5-2 Figure 5-3 Figure 5-4 Figure 5-5 Figure 5-6 Figure 5-7 Figure 5-8 Figure 5-9 Figure 5-10 Figure 5-11 Figure 5-12 Figure 5-13 Figure 5-14 Figure 5-15 Figure 5-16 Figure 5-17 Figure 5-18 Figure 5-19 Figure 5-20 Figure 5-21 Figure 5-22 Figure 5-23 Figure 5-24 Figure 5-25 Figure 5-26 Figure 5-27 Figure 5-28 Figure 5-29 Figure 5-30 Figure 5-31 Figure 5-32 Figure 5-33 Figure 5-34 Figure 5-35 Figure 5-36 Figure 5-37 Figure 5-38 Figure 5-39
Engine control system ..................................................................................................................... 78 Engine-control-system circuit diagram ............................................................................................ 79 Laser/scanner system ..................................................................................................................... 80 Pickup/feed/delivery system ........................................................................................................... 82 Image-formation system ................................................................................................................. 83 Primary charging ........................................................................................................................... 83 Developing .................................................................................................................................... 84 Transfer ......................................................................................................................................... 85 Separation ..................................................................................................................................... 85 Fusing ........................................................................................................................................... 86 Drum cleaning ............................................................................................................................... 86 Phillips and pozidrive screwdriver comparison ............................................................................... 95 Parts-removal tree .......................................................................................................................... 98 Remove the print cartridge (1 of 2) ................................................................................................. 99 Remove the print cartridge (2 of 2) ................................................................................................. 99 Remove the right cover (1 of 4) .................................................................................................... 100 Remove the right cover (2 of 4) .................................................................................................... 100 Remove the right cover (3 of 4) .................................................................................................... 101 Remove the right cover (4 of 4) .................................................................................................... 101 Remove the left cover (1 of 3) ....................................................................................................... 102 Remove the left cover (2 of 3) .................................................................................................