Preparing For Troubleshooting - Oki C5100 Maintenance Manual

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5.5.2

Preparing for troubleshooting

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No.
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Note: When replacing engine boards (RSN PWBs), read in the EEPROM chip data from the
Is an error message displayed?
•NO
•YES
42049001TH Rev.1
Operator panel display
Problems that are generated in this device are indicated in the LCD.
Apply proper measures according to the message displayed in the LCD.
Problem
Printer Malfunction after Turn-on.
Jam Errors
Paper Loading Jam (1st tray)
Paper Loading Jam (Multipurpose tray)
Paper Feed Jam
Paper Exit Jam
Duplex Print Jam
Paper Size Error
Image Drum Up/Down Operation Error
Fuser Unit Error
Motor Fan Error
boards and copy it onto installed new boards.
YES Perform according to the error message.
Is black displayed in the top and bottom lines of the operator panel LCD?
• NO Is asterisk mark " * " displayed in the operator panel LCD?
NO The operator panel LCD displays none.
• YES
• YES
• YES Is ROM DIMM A set properly?
NO Set a program DIMM to ROM DIMM A properly.
If the error is not recovered, replace the CU board.
Check the connection between the engine board and the OPE board.
If the error is not recovered, replace the engine board or the OPE board.
Check the power supply voltage: 3.3V and 5V
3.3V to pins 4 and 5, and 5V to pins 7 and 8, of RSN PWB CUIF
connector.
NO Replace the power supply.
Replace the engine board.
Oki Data CONFIDENTIAL
Flow Chart No.
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