Konica Minolta bizhub C200 Service Manual page 38

Field Service Ver. 2.0 Dec. 2008
17.5.58 CC151: ROM contents error upon start-up ............................................... 368
18. Power supply trouble ........................................................................................... 369
18.1 Machine is not energized at all (DCPU operation check) ................................. 369
18.2 Control panel indicators do not light. ................................................................ 369
18.3 Fusing heaters do not operate.......................................................................... 370
18.4 Power is not supplied to option ......................................................................... 370
18.4.1 DF-612 ...................................................................................................... 370
18.4.2 PC-105/104/204/405................................................................................. 370
18.4.3 JS-505....................................................................................................... 370
19. Image quality problem ......................................................................................... 371
19.1 How to read element date................................................................................. 371
19.1.1 Table number ............................................................................................ 371
19.1.2 Level history .............................................................................................. 372
19.2 How to identify problematic part ....................................................................... 373
19.2.1 Initial check items 1................................................................................... 373
19.3 Solution............................................................................................................. 375
19.3.1 Scanner system: white lines, white bands, colored lines and colored bands in
sub scan direction ..................................................................................... 375
19.3.2 Scanner system: white lines, white bands, colored lines and colored bands in
main scan direction ................................................................................... 377
19.3.3 Scanner system: color spots ..................................................................... 378
19.3.4 Scanner system: fog ................................................................................. 379
19.3.5 Scanner system: blurred image, blotchy image ........................................ 380
19.3.6 Scanner system: incorrect color image registration, sync shift
(lines in main scan direction) .................................................................... 381
19.3.7 Scanner system: moire ............................................................................. 382
19.3.8 Scanner system: skewed image ............................................................... 383
19.3.9 Scanner system: distorted image.............................................................. 384
19.3.10 Scanner system: low image density, rough image .................................... 385
19.3.11 Scanner system: defective ACS................................................................ 386
19.3.12 Scanner system: blank copy, black copy ................................................... 387
19.3.13 Scanner system: abnormal image ............................................................ 388
19.3.14 Scanner system: uneven density .............................................................. 389
19.3.15 Printer monocolor: white lines, white bands, colored lines and colored bands
in sub scan direction ................................................................................. 390
19.3.16 Printer monocolor: white lines, white bands, colored lines and colored bands
in main scan direction ............................................................................... 391
19.3.17 Printer monocolor: uneven density in sub scan direction.......................... 392
19.3.18 Printer monocolor: uneven density in main scan direction........................ 393
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