Error Name/Error Condition/Major Cause/Solution
• Connector defective or disconnected
Reconnect the following connectors. Then perform a conduction inspection. If
there is no conduction, replace the connector.
• Fusing Pressure Release Motor (M9) – Connect-Left PCB (PCB20)
connector
• Connect-Left PCB (PCB20) – IOB (PCB17) connector
• Drive transmission of the Fusing pressure release motor (M9) defective
Check the gears. If any gears are damaged, replace them.
• Fusing pressure release motor (M9) defective
Replace the Fusing pressure release motor (M9).
• Connect-Left PCB (PCB20) defective
Replace the Connect-Left PCB (PCB20).
• IOB (PCB17) defective
Replace the IOB (PCB17).
Error Name/Error Condition/Major Cause/Solution
Fusing Thermistor (Center) Disconnected Error
Input from fusing thermistor (center) (TS2) is 1019 or more (A/D value)
continuously for 4 seconds.
• Connector pin defective
• Triac defective
• Fusing unit defective
• Fusing thermistor connection PCB defective
• IOB (PCB17) defective
• Fusing thermistor (center) defective
• Fusing thermostat defective
• PSU (PCB18) defective
• Connector pin defective
If the I/F connector pins of the fuser unit and the main unit are deformed owing
to foreign materials, replace the connectors or the units including the
connectors.
• Triac defective
Disconnect the power cord and check that the resistance between terminals
T1 and T2 of the triac TRA31 and triac TRA41 on the PSU (PCB18) are
several Mega-Ohms and not shorted. If failed, replace the PSU (PCB18).
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