Troubleshooting Flow - Oki OKICOLOR 8 Maintenance Manual

4.3.2

Troubleshooting Flow

• ( JAM error )
Paper Input Jam
• Does paper jam occur at the inlet when the power is turned on?
• NO When the paper is fed in, does the paper input jam occur?
• NO Is the hopping roller shaft rotating?
• NO Is the stepping motor turning?
• NO Is the connector cable being connected properly?
• YES Check the coil resistance (approx. 4.3Ω) of the stepping motor.
Is it normal?
• YES Replace the AOLT-PCB.
41057610TH Rev. 1
• YES Is the paper located above the sensor plate (Inlet)?
• YES Remove the paper.
• NO Is the sensor plate (Inlet) operating normally?
• NO Replace the sensor plate (Inlet).
• YES Replace the power/sensor board or inlet sensor.
• YES Is the paper being fed to above sensor plate (Inlet)?
• YES Is the sensor plate (Inlet) operating normally?
• NO
• YES Clean the inlet sensor on the power/sensor board or
replace the power/sensor board or inlet sensor.
• NO Replace the hopping roller shaft assy or paper cassette.
• YES Set the paper properly.
• YES Replace the one-way clutch gear on the hopping roller shaft
assembly.
• NO Connect the connector cable properly.
• NO Replace the stepping motor.
Replace the sensor plate. (Inlet)
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