Oki C5100 Maintenance Manual page 86

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4
Vertical belt or line (black or color) (Fig. 5-2 D )
• Connect not properly connected LED head assy(s) to the CU board correctly.
NO
• YES
NO
• YES
• Replace the LED head assys after checking cable connection. Has the problem been corrected?
YES End.
• NO
YES End.
• NO
NO
• YES
YES End.
Note: When replacing the engine board (RSN PWB), extract EEPROM data from it and copy the
42049001TH Rev.1
Connect the LED head assembly to the connection board properly.
Is the pin connection of the image drum unit(s) to the contact assy proper (see figure 5-3)?
Connect not properly connected pin(s) to the contact assy correctly.
Replace the image drum unit(s).
Replace the CU board (ARC PWB / OWL PWB) after checking cable connection. Has the
problem been resolved?
Is the engine board (RSN PWB) connected to the CU board (ARC PWB / OWL PWB)
properly?
Connect the engine board to the connection board correctly.
Replace the engine board (RSN PWB) after checking cable connection. Has the problem
been corrected?
data onto a new engine board.
Oki Data CONFIDENTIAL
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