Phaser 4400 Laser Printer Service Manual
2-3
Service Technician Cautionary Statements
■
Always turn off the printer and remove the AC power cord, unless instructed
to do otherwise in a procedure. This is particularly important when checking
continuity between wiring.
■
If the printer is kept ON, never touch the conductive parts.
■
Wear an electrostatic discharge wrist strap to help prevent damage to the
sensitive electronics on the printer circuit boards.
■
Wait at least 5 minutes after you have switched OFF the printer power for
the Fuser to cool before you work on or around the Fuser.
■
If checking a specific part with the covers removed and the interlocks, safety
and power switches ON, laser beams may be irradiated from the Laser Unit
causing a health hazard. Observe proper precautions at all times.
■
When using service diagnostics to turn motors, drives and/or gears, never
touch or interrupt the moving parts as damage to the printer will result.
Procedures
Using the Troubleshooting Procedure
s
1.
Each
Step
in a Troubleshooting Procedure instructs you to perform a certain action
or procedure. The steps are to be followed sequentially in the order given until the
problem is fixed or resolved.
2.
The
Actions and Questions
box contains additional information and/or additional
procedures you must follow to isolate the problem.
3.
When a procedure instructs you test a component using service diagnostics, see
Service Diagnostics
on page 2-7 for the detailed steps and functions for testing
parts of the printer.
4.
The action is followed by a question. If your response to the question is “
Yes”
,
then follow the instructions for a “
Yes
” reply. If your response to the question is
“
No”
, then follow the instructions for a “
No
” reply.
5.
Troubleshooting Procedures may ask you to take voltage readings or test for
continuity at certain test points within the printer. For detailed diagrams, refer to
the section
Wiring Data
on page 9-1 for complete information on test point
locations and signal names.
6.
Troubleshooting Procedures often ask you to replace a printer component. The
section
FRU Disassembly
on page 6-1 provides detailed steps for removing and
replacing all major parts of the printer. The section
Parts Lists
on page 7-1 details
the location, quantity and part number for all spared parts of the printer.
Содержание 4400DT - Phaser B/W Laser Printer
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Страница 190: ...Phaser 4400 Laser Printer Service Manual 4 9 Print Engine NVRAM There is no single reset for the Print Engine NVRAM...
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Страница 212: ...Phaser 4400 Laser Printer Service Manual 6 19 Retard Roller Assembly...
Страница 214: ...Phaser 4400 Laser Printer Service Manual 6 21 Retard Roller Friction Clutch Assembly...
Страница 218: ...Phaser 4400 Laser Printer Service Manual 6 25 Motor Assembly...
Страница 220: ...Phaser 4400 Laser Printer Service Manual 6 27 Connector and Socket Guide...
Страница 231: ...6 38 Phaser 4400 Laser Printer Service Manual Feeder PWB...
Страница 239: ...6 46 Phaser 4400 Laser Printer Service Manual MPT Pick Up Cam MPT Roller Assembly...
Страница 247: ...6 54 Phaser 4400 Laser Printer Service Manual MPT No Paper Sensor...
Страница 251: ...6 58 Phaser 4400 Laser Printer Service Manual Paper Handler Assembly Paper Handler Assembly Removal...
Страница 257: ...6 64 Phaser 4400 Laser Printer Service Manual Registration Springs Rubber Registration Roller...
Страница 261: ...6 68 Phaser 4400 Laser Printer Service Manual Fuser Harness Assembly...
Страница 263: ...6 70 Phaser 4400 Laser Printer Service Manual Exit Chute Assembly...
Страница 268: ...Phaser 4400 Laser Printer Service Manual 6 75 Mid 1 Roller Assembly Mid 2 Roller Assembly...
Страница 271: ...6 78 Phaser 4400 Laser Printer Service Manual Heat Rod Fuser Upper Cover...
Страница 279: ...6 86 Phaser 4400 Laser Printer Service Manual Drive Gear Assembly...
Страница 286: ...Phaser 4400 Laser Printer Service Manual 6 93 HVPS PWB...
Страница 293: ...6 100 Phaser 4400 Laser Printer Service Manual Duplex Harness Assembly...
Страница 296: ...Phaser 4400 Laser Printer Service Manual 6 103 Exit Tray Paper Weight Exit Tray...
Страница 309: ...6 116 Phaser 4400 Laser Printer Service Manual Locking Tab Exit Gear and Bearings Mid Roller Assembly...
Страница 330: ...Phaser 4400 Laser Printer Service Manual 6 137 Size Sensor Housing Assembly 4...
Страница 341: ...6 148 Phaser 4400 Laser Printer Service Manual Upper Chute Assembly...
Страница 345: ...6 152 Phaser 4400 Laser Printer Service Manual Locking Tab and Belt Retainer Flange Middle Roller Assembly...
Страница 364: ...Phaser 4400 Laser Printer Service Manual 6 171 Clutch and Bearing Bottom Roller Assembly...
Страница 366: ...Phaser 4400 Laser Printer Service Manual 6 173 Feed Roller Shaft Feed Roller Assembly 1...
Страница 368: ...Phaser 4400 Laser Printer Service Manual 6 175 Feed Roller Shaft Feed Roller Assembly 2...
Страница 370: ...Phaser 4400 Laser Printer Service Manual 6 177 Feed Belts...
Страница 371: ...6 178 Phaser 4400 Laser Printer Service Manual...
Страница 374: ...Phaser 4400 Laser Printer Service Manual 7 3 PL 1 1 Covers 1 of 2 Exploded View...
Страница 376: ...Phaser 4400 Laser Printer Service Manual 7 5 PL 1 2 Covers 2 of 2 Exploded View...
Страница 378: ...Phaser 4400 Laser Printer Service Manual 7 7 PL 2 1 Tray 1 1 of 2 Exploded View...
Страница 380: ...Phaser 4400 Laser Printer Service Manual 7 9 PL 2 2 Tray 1 2 of 2 Exploded View...
Страница 382: ...Phaser 4400 Laser Printer Service Manual 7 11 PL 3 1 Paper Feeder Exploded View...
Страница 384: ...Phaser 4400 Laser Printer Service Manual 7 13 PL 4 1 MPT Chute Exploded View...
Страница 386: ...Phaser 4400 Laser Printer Service Manual 7 15 PL 5 1 Paper Handler Assembly Exploded View...
Страница 388: ...Phaser 4400 Laser Printer Service Manual 7 17 PL 6 1 Chute Transport and Fuser Exploded View...
Страница 390: ...Phaser 4400 Laser Printer Service Manual 7 19 PL 7 1 Exit Exploded View...
Страница 392: ...Phaser 4400 Laser Printer Service Manual 7 21 PL 8 1 Drive and Xerographics Exploded View...
Страница 394: ...Phaser 4400 Laser Printer Service Manual 7 23 PL 9 1 Frame and Size Sensor Exploded View...
Страница 396: ...Phaser 4400 Laser Printer Service Manual 7 25 PL 10 1 Electrical Exploded View...
Страница 398: ...Phaser 4400 Laser Printer Service Manual 7 27 PL 11 1 550 Sheet Feeder 1 of 2 Exploded View...
Страница 400: ...Phaser 4400 Laser Printer Service Manual 7 29 PL 11 2 550 Sheet Feeder 2 of 2 Exploded View...
Страница 402: ...Phaser 4400 Laser Printer Service Manual 7 31 PL 12 1 Envelope Feeder 1 of 2 Exploded View...
Страница 404: ...Phaser 4400 Laser Printer Service Manual 7 33 PL 12 2 Envelope Feeder 2 of 2 Exploded View...
Страница 406: ...Phaser 4400 Laser Printer Service Manual 7 35 PL 13 1 Duplex 1 of 2 Exploded View...
Страница 408: ...Phaser 4400 Laser Printer Service Manual 7 37 PL 13 2 Duplex 2 of 2 Exploded View...
Страница 410: ...Phaser 4400 Laser Printer Service Manual 7 39 PL 14 1 Stacker 1 of 2 Exploded View...
Страница 412: ...Phaser 4400 Laser Printer Service Manual 7 41 PL 14 2 Stacker 2 of 2 Exploded View...
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Страница 443: ...8 30 Phaser 4400 Laser Printer Service Manual Duplex Unit Paper Path...
Страница 459: ...8 46 Phaser 4400 Laser Printer Service Manual Major Components of the Option Feeder Assembly...
Страница 465: ...9 6 Phaser 4400 Laser Printer Service Manual Base Engine P J Maps Base Engine P J Location Map 1 of 2...
Страница 466: ...Phaser 4400 Laser Printer Service Manual 9 7 Base Engine P J Location Map 2 of 2 910 1 910 1...
Страница 467: ...9 8 Phaser 4400 Laser Printer Service Manual Base Engine Block Diagrams Base Engine Block Diagram 1 of 4 1...
Страница 468: ...Phaser 4400 Laser Printer Service Manual 9 9 Base Engine Block Diagram 2 of 4 2...
Страница 469: ...9 10 Phaser 4400 Laser Printer Service Manual Base Engine Block Diagram 3 of 4 3...
Страница 470: ...Phaser 4400 Laser Printer Service Manual 9 11 Base Engine Block Diagram 4 of 4 4...
Страница 471: ...9 12 Phaser 4400 Laser Printer Service Manual Block Diagram Tray 1 Tray 2 and Tray 3...
Страница 474: ...Phaser 4400 Laser Printer Service Manual 9 15 Engine Logic Board to Stack Full Sensor and Rear Interlock Switch...
Страница 476: ...Phaser 4400 Laser Printer Service Manual 9 17 Engine Logic Board to Size 1 PWB to Feeder PWB Diagram 2 of 2...
Страница 479: ...9 20 Phaser 4400 Laser Printer Service Manual Engine Logic Board to Laser Assembly...
Страница 480: ...Phaser 4400 Laser Printer Service Manual 9 21 Image Processor Board to Front Panel...
Страница 482: ...Phaser 4400 Laser Printer Service Manual 9 23 550 Sheet Feeder P J Map 550 Sheet Feeder P J Map...
Страница 483: ...9 24 Phaser 4400 Laser Printer Service Manual 550 Sheet Feeder Block Diagram 1 of 2...
Страница 484: ...Phaser 4400 Laser Printer Service Manual 9 25 550 Sheet Feeder Block Diagram 2 of 2...
Страница 486: ...Phaser 4400 Laser Printer Service Manual 9 27 Duplex Unit P J Map...
Страница 487: ...9 28 Phaser 4400 Laser Printer Service Manual Duplex Unit Block Diagram...
Страница 488: ...Phaser 4400 Laser Printer Service Manual 9 29 Engine Logic Board to Duplex PWB...
Страница 491: ...9 32 Phaser 4400 Laser Printer Service Manual Stacker P J Map...
Страница 492: ...Phaser 4400 Laser Printer Service Manual 9 33 Stacker Block Diagram...
Страница 493: ...9 34 Phaser 4400 Laser Printer Service Manual Engine Logic Board to Stacker PWB...
Страница 495: ...9 36 Phaser 4400 Laser Printer Service Manual Stacker PWB to Drive Motor Assembly and Offset Motor Assembly...
Страница 497: ...9 38 Phaser 4400 Laser Printer Service Manual Envelope Feeder P J Map...
Страница 498: ...Phaser 4400 Laser Printer Service Manual 9 39 Envelope Feeder Block Diagram...
Страница 500: ...Phaser 4400 Laser Printer Service Manual 9 41 Envelope PWB to Envelope Exit Sensor Assembly No Paper Sensor and Clutch...
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