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Print Defects
Print quality refers to the entire print. Defects
can occur anywhere on the print. These defects
could be damaged media or print quality defects.
Always eliminate problems that cause the
damaged media before attempting to fix print
quality problems. Some damaged media
problems could cause print quality problems.
Compare the print defect to the definitions on
this page and the next page. After you have
determined the definition that best describes the
print defect, go to the Section Contents page.
The Section Contents page will direct you to a
Print Quality Problem / Cause Table. The
Problem / Cause Table lists the probable causes
and corrective actions.
The PROBABLE CAUSES are arranged in order
of most probable cause to least probable cause
or the ease of the check. CORRECTIVE
ACTIONS are given for each cause. Read all of
the probable causes before taking any corrective
action.
a. Start with the first PROBABLE CAUSE
and continue through the list until you
come to the cause that best applies to
the image defect.
b. Perform the CORRECTIVE ACTION.
c. If the defect has been corrected, go to
the Maintenance Activities in the Service
Call Procedures in Section 1. If the
defect is still present, continue with the
other PROBABLE CAUSES.
Print Quality Definitions
The following terms are some of the most
commonly used terms that describe image
quality problems.
Background
Background occurs as darkness or dirtiness on
the non-image areas of the print.
Black Print
This is a print that is entirely black except for the
lead edge, trail edge and possibly the left and
right edges.
Blank Print
This is a print entirely without an image.
Deletions
An area of the image where information has
been lost. The areas of deletions could be
localized or bands from top to bottom or side to
side.
Density
The relative blackness between the image and
non-image areas.
Fuser Fix
This is a measure of how the toner particles
adhere to the media as a result of the fusing
process.
Print Displacement
Part of the image information is being placed
elsewhere on the print or it is completely
missing. The area of the missing information is
sharply defined. This is unlike deletions where
the image is not sharply defined or clear.
Print Distortion or Skew
The Image is skewed on the media. The image
from side to side or lead edge to trail edge is not
parallel to the edges of the print. There is also
distortion of the image from one side of the copy
to the other. These defects are a result of a
misadjustment of the media transportation
system components.
Light Image
These are prints where the density is lighter than
the specified density for the printer.
Line Darkness
This is the darkness and uniformity for a line.
Misregistration
This is when the distance from the lead edge of
the image to the lead edge of the media is not
within specification.
Offsetting
This is the transfer of toner from the print to the
heat roll. Sometimes the toner is transferred
back to the print or consecutive prints.
Media Damage
This is any physical distortion to the media that Is
used in making a print. This distortion may
include folds, wrinkles, etc.
8830
1/98
3-3
Print Quality Definitions
Содержание Synergix 8830
Страница 2: ......
Страница 8: ...1 98 Introduction viii 8830...
Страница 11: ...Call Flow Diagram 8830 1 98 1 3 Call Flow Diagram...
Страница 13: ...Print Defect Isolation Procedure 8830 1 98 1 5 Print Defect Isolation Procedure...
Страница 14: ...Workstation Checkout Procedure Workstation Checkout Procedure 1 98 1 6 8830...
Страница 34: ...Notes 1 98 1 26 8830...
Страница 52: ...Notes 1 98 2 18 8830...
Страница 84: ...Notes 1 98 3 32 8 8 3 0...
Страница 86: ...Notes 1 98 4 2 8830...
Страница 100: ...Notes 1 98 4 16 8 8 3 0...
Страница 112: ...Notes 1 98 4 28 8830...
Страница 126: ...Notes 1 98 4 42 8830...
Страница 184: ...Notes 1 98 4 100 8830...
Страница 191: ...8830 1 98 4 109 ADJ 10 2...
Страница 192: ...ADJ 10 1 1 98 4 108 8830...
Страница 193: ...Notes 1 98 8830 4 111...
Страница 194: ...1 98 4 112 8830...
Страница 287: ...8830 1 98 7 3 Level 1 BSD...
Страница 288: ...Level 1 BSD 1 98 7 4 8830 LEVEL 1 BSD SHEET 2 OF 4...
Страница 291: ...1 98 7 7 PAGE INTENTIONALLY BUNK...
Страница 293: ...1 1A MAIN POWER ON WITH DELTA NOISE FILTER 50 AND 60 HZ 2 OF 2 8830 1 98 7 9 Chain 1 Standby Power...
Страница 299: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 15 Chain 1 Standby Power...
Страница 303: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 19 Chain 2 Mode Control...
Страница 306: ...PAGE INTENTIONALLY BLANK 1 98 Chain 2 Mode Control 7 22 8830...
Страница 307: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 23 Chain 3 Machine Run Control...
Страница 310: ...PAGE INTENTIONALLY BLANK 1 98 Chain 3 Machine Run Control 7 26 8830...
Страница 311: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 27 Chain 4 Print Power...
Страница 317: ...4 3 DRUM DRIVE 2 OF 2 LEFT SIDE FRONT 07012 8830 1 98 7 33 Chain 4 Print Power...
Страница 318: ...PAGE INTENTIONALLY BLANK 1 98 Chain 4 Print Power 7 34 8830...
Страница 319: ...PAGE INTENTIONALLY BUNK 1 98 8830 7 35 Chain 6 Imaging...
Страница 320: ...Chain 6 Imaging 1 98 7 36 8830...
Страница 322: ...6 2 IMAGING LEFT SIDE 1 OF 2 LED DRIVER PWB A29 LEFT SIDE OF IMAGE Chain 6 Imaging 1 98 7 38 8830...
Страница 324: ...PAGE INTENTIONALLY BLANK 1 98 Chain 6 Imaging 7 40 8 8 3 0...
Страница 325: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 41 Chain 7 Paper Supplying...
Страница 328: ...Chain 7 Paper Supplying 1 98 7 44 8830...
Страница 330: ...Chain 7 Paper Supplying 1 98 7 46 8830...
Страница 332: ...Chain 7 Paper Supplying 1 98 7 48 8830...
Страница 334: ...7 5 MEDIA CUTTING 1 OF 2 CUTTER DRIVE MOTOR A6MOT1 Chain 7 Paper Supplying 1 98 7 50 8830...
Страница 335: ...8830 1 98 7 51 Chain 7 Paper Supplying...
Страница 336: ...PAGE INTENTIONALLY BLANK 1 98 Chain 7 Paper Supplying 7 52 8830...
Страница 337: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 53 Chain 8 Paper Feeding...
Страница 338: ...Chain 8 Paper Feeding 1 98 7 54 8830...
Страница 341: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 57 Chain 9 Xerographies...
Страница 342: ...Chain 9 Xerographics 1 98 7 58 8830...
Страница 344: ...9 2 EXPOSURE 1 OF 1 IMAGE MODULE Chain 9 Xerographics 1 98 7 60 8830...
Страница 345: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 61 Chain 9 Xerographies...
Страница 349: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 65 Chain 9 Xerographics...
Страница 351: ...9 5 DRUM CLEANING 2 OF 2 TONER WASTE COLLECTION TUBE FRONT VIEW 8830 1 98 7 67 Chain 9 Xerographics 07021...
Страница 352: ...Chain 9 Xerographics 1 98 7 68 8830...
Страница 354: ...Chain 9 Xerographics 1 98 7 70 8830...
Страница 356: ...Chain 9 Xerographics 1 98 7 72 8830...
Страница 358: ...PAGE INTENTIONALLY BLANK 1 98 Chain 9 Xerographics 7 74 8830...
Страница 359: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 75 Chain 10 Fusing...
Страница 361: ...8830 1 98 7 77 Chain 10 Fusing...
Страница 362: ...Chain 10 Fusing 1 98 7 78 8830...
Страница 363: ...PAGE INTENTIONALLY BLANK 1 98 8830 7 79 Chain 10 Fusing...
Страница 364: ...Chain 10 Fusing 1 98 7 80 8830...
Страница 366: ...1 98 Chain 10 Fusing 7 82 8830...
Страница 368: ...Chain 10 Fusing 1 98 7 84 8830...
Страница 372: ...Transmittal Page Product 8830 DDS Title Service Manual Status INITIAL ISSUE Part Number 701P11550 Date March 1998...
Страница 374: ...Revision Control List Product 8830 DDS Title Service Manual Part Number 701P11550 Date 3 98...
Страница 378: ...3 98 VI 8830 DDS...
Страница 386: ...Introduction Reference Symbology xiv 8830 DDS...
Страница 388: ...Service Call Procedures 3 98 8830 DDS...
Страница 396: ...Repair Analysis Procedures 3 90 2 2 8830 DDS...
Страница 401: ...3 Image Quality RAP Image Quality RAP 3 3 3 98 Image Quality RAP 8830 DDS 3 1 Section Contents...
Страница 402: ...Image Quality RAP 3 98 3 2 8830 DDS...
Страница 404: ...Image Quality Repair Analysis Procedures 3 4 8830 POS...
Страница 406: ...Repair and Adjustment Procedures 4 2 8830 DOS...
Страница 414: ...Repairs Adjustments REP 4 1 6 4 10 8830 DDS...
Страница 428: ...General Procedures 6 2 8830 DDS...
Страница 430: ...Figure 1 Main Menu Tree Structure General Procedures Diagnostics 3 08 6 4 6830 DDS...
Страница 442: ...General Procedures 3 9 8 l Diagnostics 6 16...
Страница 452: ...General Procedures 3 f l f l Repack Procedure 6 2 6 883ODDS...
Страница 464: ...General Procedures Change Tag Mod Index 6 38...
Страница 466: ...Wiring Data 7 2 8830 DDS...
Страница 467: ...1 1 AC Power Figure 1 8830 DDS Control Panel 8830 DDS 3 98 7 3 Wiring Data 1 1 AC Power...
Страница 468: ...Wirlng Data 1 1 AC Power 7 4 8830DDs...
Страница 470: ...9 19 96...
Страница 471: ...Analyst may complete page 3 9 19 96...
Страница 474: ...implementation Plan THE DOCUMENT COMPANY XEROX 9 19 96...
Страница 497: ...Notes 4 97 2 2 7356 Scanner...
Страница 501: ...Figure 2 AC Power Circuits 1 1 AC Power RAP 4 97 2 6 7356 Scanner...
Страница 505: ...Figure 4 DC Power Circuits Sheet 1 of 2 1 2 DC Power RAP 4 97 7356 Scanner...
Страница 506: ...Figure 4 DC Power Circuits Sheet 2 of 2 7356 Scanner 2 98 2 11 1 2 DC Power RAP...
Страница 509: ...Figure 3 Document Illumination Circuits 1 3 Exposure Lamp RAP 4 97 2 14 7356 Scanner...
Страница 518: ...Notes 4 97 3 2 7356 Scanner...
Страница 526: ...Notes 4 97 NOTES 4 2 7356 SCANNER...
Страница 572: ...Notes 4 97 NOTES 4 48 7356 SCANNER...
Страница 586: ......
Страница 596: ...Figure 6 10 Memory Tests Screen Diagnostics 4 97 6 10 7356 Scanner...
Страница 620: ...Notes 4 97 7 2 7356 Scanner...
Страница 621: ...1 1 AC Power Distribution 7356 Scanner 4 97 7 3 1 1 AC Power Distribution BSD...
Страница 622: ...1 2 DC Power Generation 1 2 DC Power Generation BSD 4 97 7 4 7356 Scanner...
Страница 623: ...7356 Scanner 4 97 7 5 1 2 DC Power Generation BSD...
Страница 624: ...4 1 Main Drive Motor Control 4 1 Main Drive Motor Control BSD 4 97 7 6 7356 Scanner...
Страница 625: ...4 2 Mechanical Power 7356 Scanner 4 97 7 7 4 2 Mechanical Power BSD...
Страница 626: ...5 1 Document Transport Registration 5 1 Document Transport Registration BSD 4 97 7 8 7356 Scanner...
Страница 627: ...6 1 Document Illumination 7356 Scanner 4 97 7 9 6 1 Document Illumination BSD...
Страница 628: ...6 2 Image Projection 6 2 Image Projection BSD 4 97 7 10 7356 Scanner...
Страница 629: ...14 1 Communication 7356 Scanner 4 97 7 11 7 12 14 1 Communications BSD...