6.Troubleshooting
248
Error Name/Error Condition/Major Cause/Solution
Toner End Sensor output count error
Under the condition that the toner cartridge has not reached the end, an error that no toner is
supplied has been detected over n times in succession. (where n is to be configured using SP2-
931-003)
ï‚· Bad connector contact or connector disconnected/wire broken
ï‚· Failed toner end sensor
ï‚· Dirty detection surface inside the development unit
ï‚· Check the connector connection or check for broken wire.
ï‚· Replace the harness.
ï‚· Replace the toner end sensor.
ï‚· Replace the PCDU.
SC400 (Image Processing – 2)
Error Name/Error Condition/Major Cause/Solution
High voltage output error: Transfer unit
This SC is issued if the BiCU detects a short in the power pack 10 times consecutively.
ï‚· Replace the controller board.
Error Name/Error Condition/Major Cause/Solution
Temperature/humidity Sensor error
ï‚· Temperature sensor output error: Out of range between 0.76 V and 2.90 V
ï‚· Humidity sensor output error: 2.4 V or more
ï‚· Unmounted sensor (Disconnected connector or broken wire)
ï‚· Check that the connector is set.
ï‚· Set the sensor.
ï‚· Replace the sensor.
ï‚· Replace the connector.
SC500 (Paper Feed and Fusing)
Error Name/Error Condition/Major Cause/Solution
Bypass bottom plate operation error
The signal from the bypass bottom plate position sensor has not changed (the signal has not
changed from ON to OFF or vice versa) for 4 seconds or more after the start of reverse Paper
Feed Unit rotation. If the error is detected three times in succession, the SC number is displayed on