D0CA/D0C9/D0C8/D0CB
xvii
SM
recognizing whether the original is full color or black-and-white. ....................... 6-135
Using SP4-939-001 (ACS:Color Range), you can adjust the level of (1) Chromatic
Color Recognition for recognizing whether the original is full color or
black-and-white. .................................................................................................. 6-136
6.12.4
MISRECOGNITION OF AUTO COLOR SELECTION (COPY/SCANNER) ... 6-136
Error Condition .................................................................................................... 6-136
The misrecognition occurs when copying an original which has color at the edge,
and that color is printed on the output 10 mm from the edge in the ACS mode. 6-136
The misrecognition occurs when scanning an original which has color only 15 mm
from the edge (using the original as a standard) in the ACS mode. ................... 6-137
Cause .................................................................................................................. 6-137
Countermeasure .................................................................................................. 6-137
6.12.5
FAILURE TO REPRODUCE COLORED TEXT DURING COLOR COPYING6-139
6.12.6
LINE POSITION ADJUSTMENT ..................................................................... 6-141
Test ...................................................................................................................... 6-141
Countermeasure List for Color Registration Errors ............................................. 6-142
6.12.7
BLANK PRINT ................................................................................................. 6-146
6.12.8
ALL-BLACK PRINT ......................................................................................... 6-147
6.12.9
MISSING CMY COLOR .................................................................................. 6-147
6.12.10
LIGHT PRINT ............................................................................................ 6-147
6.12.11
REPEATED SPOTS OR LINES ON PRINTS ........................................... 6-148
6.12.12
DARK VERTICAL LINE ON PRINTS ........................................................ 6-148
6.12.13
WHITE HORIZONTAL LINES OR BANDS ............................................... 6-148
6.12.14
MISSING PARTS OF IMAGES ................................................................. 6-149
6.12.15
DIRTY BACKGROUND ............................................................................ 6-149
6.12.16
PARTIAL CMY COLOR DOTS ................................................................. 6-149
6.12.17
DARK IRREGULAR STREAKS ON PRINTS ........................................... 6-149
6.12.18
CMY COLOR IRREGULAR STREAKS .................................................... 6-149
6.12.19
GHOSTING ............................................................................................... 6-149
6.12.20
UNFUSED OR PARTIALLY FUSED PRINTS .......................................... 6-150
6.12.21
IMAGE SKEW ........................................................................................... 6-150
6.12.22
BACKGROUND STAIN ............................................................................. 6-151
6.12.23
NO PRINTING ON PAPER EDGE............................................................ 6-151
6.12.24
IMAGE NOT CENTERED WHEN IT SHOULD BE .................................. 6-151
6.13
TROUBLESHOOTING FOR OTHER PROBLEMS ............................................ 6-152
6.13.1
WHEN YOU CANNOT OPEN THE RIGHT DOOR ......................................... 6-152
6.13.2
WHEN FLUORESCENT OR LED LAMPS FLICKER ..................................... 6-155
6.13.3
WHEN ABNORMAL NOISE OCCURS ........................................................... 6-157
Checking Abnormal Noise from the Fusing Unit ................................................. 6-157
Summary of Contents for D0C8
Page 1: ...D0CA D0C9 D0C8 D0CB SERVICE MANUAL Rev 08 26 2021...
Page 4: ......
Page 6: ......
Page 35: ...PRODUCT INFORMATION...
Page 36: ......
Page 44: ......
Page 45: ...INSTALLATION...
Page 46: ......
Page 222: ......
Page 223: ...PREVENTIVE MAINTENANCE...
Page 224: ......
Page 233: ...REPLACEMENT AND ADJUSTMENT...
Page 234: ......
Page 264: ...Special Tools D0CA D0C9 D0C8 D0CB 4 30 SM...
Page 276: ...Exterior Covers D0CA D0C9 D0C8 D0CB 4 42 SM 6 Remove the scanner inner cover A...
Page 442: ...Duplex D0CA D0C9 D0C8 D0CB 4 208 SM 3 Remove the right cover sensor SW2 A 1...
Page 452: ...Electrical Components D0CA D0C9 D0C8 D0CB 4 218 SM IM C300 series IM C400F...
Page 501: ...SYSTEM MAINTENANCE...
Page 502: ......
Page 578: ...Self Diagnostic Mode D0CA D0C9 D0C8 D0CB 6 4 SM...
Page 732: ...Troubleshooting for Other Problems D0CA D0C9 D0C8 D0CB 6 158 SM...
Page 742: ...Jam Detection D0CA D0C9 D0C8 D0CB 6 168 SM...
Page 746: ...Jam Detection D0CA D0C9 D0C8 D0CB 6 172 SM Sensor Layout...
Page 747: ...Jam Detection SM 6 173 D0CA D0C9 D0C8 D0CB Troubleshooting...
Page 750: ......
Page 751: ...DETAILED DESCRIPTIONS...
Page 752: ......
Page 754: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 2 SM IM C400F...
Page 756: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 4 SM 7 1 2 PAPER PATH IM C300 series...
Page 757: ...Machine Overview SM 7 5 D0CA D0C9 D0C8 D0CB Detailed Descriptions IM C400F...
Page 772: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 20 SM Electrical Parts IM C300 series IM C400 series...
Page 797: ...Laser Unit SM 7 45 D0CA D0C9 D0C8 D0CB Detailed Descriptions...
Page 848: ...Duplex D0CA D0C9 D0C8 D0CB 7 96 SM 7 16 DUPLEX 7 16 1 OVERVIEW IM C300 series...
Page 849: ...Duplex SM 7 97 D0CA D0C9 D0C8 D0CB Detailed Descriptions IM C400F...
Page 854: ...Duplex D0CA D0C9 D0C8 D0CB 7 102 SM...
Page 888: ......
Page 889: ...SMART OPERATION PANEL...
Page 890: ......
Page 959: ...D0CA D0C9 D0C8 D0CB SERVICE MANUAL APPENDICES...
Page 960: ......
Page 964: ......
Page 966: ......
Page 981: ...APPENDICES PREVENTIVE MAINTENANCE TABLES...
Page 982: ......
Page 991: ...APPENDICES SP MODE TABLES...
Page 992: ......
Page 1454: ......
Page 1455: ...APPENDICES SOFTWARE CONFIGURATION...
Page 1456: ......
Page 1469: ...Scanner Features SM Appendices 4 13 D0CA D0C9 D0C8 D0CB Appendices Software Configuration...
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Page 1475: ......
Page 1552: ...Bit Switches 3 SM 77 D0CK...
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Page 1605: ......
Page 1614: ...Rear Cover SM 9 D3GQ 2 2 REAR COVER 1 Remove the rear cover A...
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