![background image](http://html1.mh-extra.com/html/xerox/4400dt-phaser-b-w-laser-printer/4400dt-phaser-b-w-laser-printer_service-manual_3448003045.webp)
2-8
Phaser 4400 Laser Printer Service Manual
Component Checks
— Tests print engine component functions.
NVRAM Access
— Lets you reset the PS NVRAM locations to factory defaults.
Exit
— Reboots the Printer out of Diagnostics.
Service Diagnostics Menu Map
The Service Diagnostics Menu Map lists the tests available for testing print engine
parts and functions while diagnosing printer problems. When you enter Service
Diagnostics, the menu items shown in bold type appear on the front panel. When you
select one of these items, the list of individual tests appear.
Print Service Menu Map:
Prints this page
General Status:
Provides current print engine status.
Engine ROM Version
Engine Print Counter
Engine Configuration
Print Resolution
Read Fuser Temperature
Read Fuser Set Temperature
Engine Test Print:
Starts the test print.
Print Test pattern
Input tray
Output tray
Duplex
Print Quantity
Motors/Fan Test:
Test the functionality for motors/fan.
Duplex Motor High
Duplex Motor Low
Exit Motor Forward
Exit Motor Reverse High
Exit Motor Reverse Low
Main Motor
Fan Motor High Speed
Laser Scan Motor
Stacker Motor
Stacker Offset Motor
Sensor Tests:
Tests the functionality of sensors/switches/options by
manually toggling each sensor or installing an option.
Front Cover Switch
Rear Cover Switch
Paper Tray Size Read (display paper size, for trays)
Print Cartridge Switch
Toner Sensor
Registration Sensor
Exit Sensor (Fuser)
Duplex Sensor
Stacker Sensor
Stacker Full Sensor
Output Tray Full Sensor (Printer)
Tray 1 Low Paper Sensor
Tray 2 Low Paper Sensor
Tray 3 Low Paper Sensor
Tray 1 No Paper Sensor
Tray 2 No Paper Sensor
Tray 3 No Paper Sensor
MPT No Paper Sensor
Envelope Feeder No Paper Sensor
Envelope Feeder Presence
Duplex Unit Presence
Stacker Unit Presence
Solenoid Tests:
Test the functionality of printer solenoids
*MPT Solenoid
Stacker Direction Solenoid
Clutch tests:
Test the functionality of printer clutches.
*Registration Clutch
*Tray 1 Feed Clutch
*Tray 2 Feed Clutch
*Tray 3 Feed Clutch
*Tray 1 Turn Roll Clutch
*Tray 2 Turn Roll Clutch
*Tray 3 Turn Roll Clutch
*Envelope Feeder Clutch
Engine NVRAM Adjustments:
Perform NVRAM adjustments essential to
the performance of the printer.
Laser Power Setting
MPT Paper Size Adjustment
Envelope Paper Size Adjustment
Tray 1 Process Direction
Tray 2 Process Direction
Tray 3 Process Direction
Envelope Feeder Process Direction
MPT Process Direction
Tray 1 Scan Direction
Tray 2 Scan Direction
Tray 3 Scan Direction
Envelope Feeder Scan Direction
MPT Scan Direction
Duplex Process Direction
Duplex Scan Direction
Component Checks:
Laser Diode
Detack Saw Output
Transfer Roll +
Transfer Roll ñ
Developer Bias AC
Developer Bias DC
Charge Roll AC
Charge Roll DC
NVRAM Access:
This menu lets you reset the PS NVRAM locations to
factory defaults.
PostScript NVRAM Reset
Exit:
Reboots Printer out of Diagnostics.
For Service Use Only:
The Service menu functions are to be used by Xerox service personnel
and authorized service providers. The printer can be damaged by
improper use of the built-in service tests.
Main Motor + Clutch/Sol Tests:
* Runs main drive motor with each
individual clutch and MPT solenoid.
Summary of Contents for 4400DT - Phaser B/W Laser Printer
Page 1: ...Service Manual P h a s e r L a s e r P r i n t e r 4400...
Page 2: ......
Page 13: ...xii Phaser 4400 Laser Printer Service Manual...
Page 17: ...xvi Phaser 4400 Laser Printer Service Manual...
Page 37: ...1 20 Phaser 4400 Laser Printer Service Manual...
Page 140: ...Phaser 4400 Laser Printer Service Manual 3 43 Test Print...
Page 181: ...3 84 Phaser 4400 Laser Printer Service Manual...
Page 184: ...Phaser 4400 Laser Printer Service Manual 4 3...
Page 191: ...4 10 Phaser 4400 Laser Printer Service Manual...
Page 193: ...5 2 Phaser 4400 Laser Printer Service Manual...
Page 212: ...Phaser 4400 Laser Printer Service Manual 6 19 Retard Roller Assembly...
Page 214: ...Phaser 4400 Laser Printer Service Manual 6 21 Retard Roller Friction Clutch Assembly...
Page 218: ...Phaser 4400 Laser Printer Service Manual 6 25 Motor Assembly...
Page 220: ...Phaser 4400 Laser Printer Service Manual 6 27 Connector and Socket Guide...
Page 231: ...6 38 Phaser 4400 Laser Printer Service Manual Feeder PWB...
Page 239: ...6 46 Phaser 4400 Laser Printer Service Manual MPT Pick Up Cam MPT Roller Assembly...
Page 247: ...6 54 Phaser 4400 Laser Printer Service Manual MPT No Paper Sensor...
Page 257: ...6 64 Phaser 4400 Laser Printer Service Manual Registration Springs Rubber Registration Roller...
Page 261: ...6 68 Phaser 4400 Laser Printer Service Manual Fuser Harness Assembly...
Page 263: ...6 70 Phaser 4400 Laser Printer Service Manual Exit Chute Assembly...
Page 268: ...Phaser 4400 Laser Printer Service Manual 6 75 Mid 1 Roller Assembly Mid 2 Roller Assembly...
Page 271: ...6 78 Phaser 4400 Laser Printer Service Manual Heat Rod Fuser Upper Cover...
Page 279: ...6 86 Phaser 4400 Laser Printer Service Manual Drive Gear Assembly...
Page 286: ...Phaser 4400 Laser Printer Service Manual 6 93 HVPS PWB...
Page 293: ...6 100 Phaser 4400 Laser Printer Service Manual Duplex Harness Assembly...
Page 296: ...Phaser 4400 Laser Printer Service Manual 6 103 Exit Tray Paper Weight Exit Tray...
Page 330: ...Phaser 4400 Laser Printer Service Manual 6 137 Size Sensor Housing Assembly 4...
Page 341: ...6 148 Phaser 4400 Laser Printer Service Manual Upper Chute Assembly...
Page 364: ...Phaser 4400 Laser Printer Service Manual 6 171 Clutch and Bearing Bottom Roller Assembly...
Page 366: ...Phaser 4400 Laser Printer Service Manual 6 173 Feed Roller Shaft Feed Roller Assembly 1...
Page 368: ...Phaser 4400 Laser Printer Service Manual 6 175 Feed Roller Shaft Feed Roller Assembly 2...
Page 370: ...Phaser 4400 Laser Printer Service Manual 6 177 Feed Belts...
Page 371: ...6 178 Phaser 4400 Laser Printer Service Manual...
Page 374: ...Phaser 4400 Laser Printer Service Manual 7 3 PL 1 1 Covers 1 of 2 Exploded View...
Page 376: ...Phaser 4400 Laser Printer Service Manual 7 5 PL 1 2 Covers 2 of 2 Exploded View...
Page 378: ...Phaser 4400 Laser Printer Service Manual 7 7 PL 2 1 Tray 1 1 of 2 Exploded View...
Page 380: ...Phaser 4400 Laser Printer Service Manual 7 9 PL 2 2 Tray 1 2 of 2 Exploded View...
Page 382: ...Phaser 4400 Laser Printer Service Manual 7 11 PL 3 1 Paper Feeder Exploded View...
Page 384: ...Phaser 4400 Laser Printer Service Manual 7 13 PL 4 1 MPT Chute Exploded View...
Page 386: ...Phaser 4400 Laser Printer Service Manual 7 15 PL 5 1 Paper Handler Assembly Exploded View...
Page 388: ...Phaser 4400 Laser Printer Service Manual 7 17 PL 6 1 Chute Transport and Fuser Exploded View...
Page 390: ...Phaser 4400 Laser Printer Service Manual 7 19 PL 7 1 Exit Exploded View...
Page 392: ...Phaser 4400 Laser Printer Service Manual 7 21 PL 8 1 Drive and Xerographics Exploded View...
Page 394: ...Phaser 4400 Laser Printer Service Manual 7 23 PL 9 1 Frame and Size Sensor Exploded View...
Page 396: ...Phaser 4400 Laser Printer Service Manual 7 25 PL 10 1 Electrical Exploded View...
Page 398: ...Phaser 4400 Laser Printer Service Manual 7 27 PL 11 1 550 Sheet Feeder 1 of 2 Exploded View...
Page 400: ...Phaser 4400 Laser Printer Service Manual 7 29 PL 11 2 550 Sheet Feeder 2 of 2 Exploded View...
Page 402: ...Phaser 4400 Laser Printer Service Manual 7 31 PL 12 1 Envelope Feeder 1 of 2 Exploded View...
Page 404: ...Phaser 4400 Laser Printer Service Manual 7 33 PL 12 2 Envelope Feeder 2 of 2 Exploded View...
Page 406: ...Phaser 4400 Laser Printer Service Manual 7 35 PL 13 1 Duplex 1 of 2 Exploded View...
Page 408: ...Phaser 4400 Laser Printer Service Manual 7 37 PL 13 2 Duplex 2 of 2 Exploded View...
Page 410: ...Phaser 4400 Laser Printer Service Manual 7 39 PL 14 1 Stacker 1 of 2 Exploded View...
Page 412: ...Phaser 4400 Laser Printer Service Manual 7 41 PL 14 2 Stacker 2 of 2 Exploded View...
Page 413: ...7 42 Phaser 4400 Laser Printer Service Manual...
Page 443: ...8 30 Phaser 4400 Laser Printer Service Manual Duplex Unit Paper Path...
Page 459: ...8 46 Phaser 4400 Laser Printer Service Manual Major Components of the Option Feeder Assembly...
Page 466: ...Phaser 4400 Laser Printer Service Manual 9 7 Base Engine P J Location Map 2 of 2 910 1 910 1...
Page 468: ...Phaser 4400 Laser Printer Service Manual 9 9 Base Engine Block Diagram 2 of 4 2...
Page 469: ...9 10 Phaser 4400 Laser Printer Service Manual Base Engine Block Diagram 3 of 4 3...
Page 470: ...Phaser 4400 Laser Printer Service Manual 9 11 Base Engine Block Diagram 4 of 4 4...
Page 471: ...9 12 Phaser 4400 Laser Printer Service Manual Block Diagram Tray 1 Tray 2 and Tray 3...
Page 479: ...9 20 Phaser 4400 Laser Printer Service Manual Engine Logic Board to Laser Assembly...
Page 480: ...Phaser 4400 Laser Printer Service Manual 9 21 Image Processor Board to Front Panel...
Page 483: ...9 24 Phaser 4400 Laser Printer Service Manual 550 Sheet Feeder Block Diagram 1 of 2...
Page 484: ...Phaser 4400 Laser Printer Service Manual 9 25 550 Sheet Feeder Block Diagram 2 of 2...
Page 486: ...Phaser 4400 Laser Printer Service Manual 9 27 Duplex Unit P J Map...
Page 487: ...9 28 Phaser 4400 Laser Printer Service Manual Duplex Unit Block Diagram...
Page 488: ...Phaser 4400 Laser Printer Service Manual 9 29 Engine Logic Board to Duplex PWB...
Page 491: ...9 32 Phaser 4400 Laser Printer Service Manual Stacker P J Map...
Page 492: ...Phaser 4400 Laser Printer Service Manual 9 33 Stacker Block Diagram...
Page 493: ...9 34 Phaser 4400 Laser Printer Service Manual Engine Logic Board to Stacker PWB...
Page 497: ...9 38 Phaser 4400 Laser Printer Service Manual Envelope Feeder P J Map...
Page 498: ...Phaser 4400 Laser Printer Service Manual 9 39 Envelope Feeder Block Diagram...
Page 501: ...9 42 Phaser 4400 Laser Printer Service Manual...
Page 502: ......
Page 503: ...071 0861 00...