Oki B4500 Maintenance Manual page 141

• ( JAM error )
Paper Inlet Jam
• Does paper jam at the inlet when the power is turned on?
• YES
• NO
• YES
• NO When the paper is fed in, does the paper inlet jam occur?
• YES
• NO
• NO Are the roller-A and roller-B rotating?
• YES
• NO Is the pulse motor turning?
• YES
• NO Is the connector cable being connected properly?
• NO
• YES Check the coil resistance (approx. 32Ω) of the pulse motor.
Is it normal?
• NO
• YES Replace the OLEV-11-PCB.
43502101TH Rev.1
Is the paper located above the sensor plate (inlet)?
• YES Remove the paper.
Is the sensor plate (inlet) operating normally?
• NO Replace the sensor plate (inlet).
Replace the power supply/sensor board or inlet sensor.
Is the paper being fed to above sensor plate (inlet)?
• YES Is the sensor plate (inlet) operating normally?
• NO Replace the sensor plate (inlet).
• YES Clean the inlet sensor on the power supply/sensor board or replace the
power supply/sensor board or inlet sensor.
Replace the roller-A or roller-B.
Set the paper properly.
Replace the planet gear.
Connect the connector cable properly.
Replace the pulse motor.
Oki Data CONFIDENTIAL
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