Oki C5100 Maintenance Manual page 93

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(B)
• [Is "YELLOW/MAGENTA/CYAN LEFT/RIGHT/HORIZONTAL" displayed?
• YES Replace the belt unit. Has the problem been corrected?
• NO
• NO
• NO
• NO
• YES Replace the LED head assys after checking cable connection. Has the problem been
• NO
• NO
• NO
• NO
• YES Replace the image drum units.
Note: When replacing the engine board (RSN PWB), extract EEPROM data from it and copy the
42049001TH Rev.1
YES End.
Replace the image drum unit. Has the problem been resolved?
YES End.
Are there any problems in the gear assys of the image drums, multipurpose tray, belt unit,
belt motor etc.?
YES Replace damaged gear assy(s).
Replace the driver board. Has the problem been corrected?
YES End.
Are the LED head units connected to the CU board (ARC PWB / OWL PWB) properly?
NO Connect not properly connected LED head unit(s) to the connection board correctly.
resolved?
YES End.
Replace the CU board (ARC PWB / OWL PWB) after checking cable connection. Has the
problem been corrected?
YES End.
Is the engine board (RSN PWB) connected to the CU board (ARC PWB / OWL PWB)
properly?
NO Connect the engine board to the connection board correctly.
Replace the engine board. Has the problem been resolved?
YES End.
Are the pins of the image drum units connected to the contact assy properly (see figure 5-
3)?
NO Connect not properly connected pins to the contact assy correctly.
data onto a new engine board.
Oki Data CONFIDENTIAL
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