Phaser 4400 Laser Printer Service Manual
3-53
Image-Quality Troubleshooting
Procedures
The image-quality troubleshooting procedures that follow are meant to assist in
correcting image-quality defects. These procedures provide defect samples,
definitions and specifications to help identify the type of defect that exists, the test
pattern to use, and actions required to correct the defects.
Throughout these procedures, the term “vertical” refers to the process direction (the
direction paper travels through the printer); the term “horizontal” refers to the
scanning direction (the direction the laser beam scans across the page).
Cleaning procedures should always be performed before beginning any Image-quality
Repair procedure.
Be sure that the paper meets printer specifications. Changing the paper, or using paper
from a previously unopened ream, will resolve many print-quality issues.
After resolving an image-quality problem, return to
Image-Quality Checkout
Procedures
on page 3-41 to verify that no other image-quality defects exist.
Index of Image-Quality Troubleshooting
Procedures
Light (Undertoned) Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
Blank Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56
Black Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58
Vertical Deletions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59
Horizontal Deletions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61
Vertical Streaks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-63
Horizontal Streaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65
Spots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
Unfused Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
Damaged Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72
Spot Deletions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
Repeating Defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74
Residual Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76
Uneven Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78
Skewed Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79
Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81
Skips / Smears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-83
Содержание 4400DT - Phaser B/W Laser Printer
Страница 1: ...Service Manual P h a s e r L a s e r P r i n t e r 4400...
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Страница 140: ...Phaser 4400 Laser Printer Service Manual 3 43 Test Print...
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Страница 184: ...Phaser 4400 Laser Printer Service Manual 4 3...
Страница 190: ...Phaser 4400 Laser Printer Service Manual 4 9 Print Engine NVRAM There is no single reset for the Print Engine NVRAM...
Страница 191: ...4 10 Phaser 4400 Laser Printer Service Manual...
Страница 193: ...5 2 Phaser 4400 Laser Printer Service Manual...
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...
Страница 413: ...7 42 Phaser 4400 Laser Printer Service Manual...
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...
Страница 501: ...9 42 Phaser 4400 Laser Printer Service Manual...
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