Description: ID sensor error 1: automatic adjustment error During the process control self-check, the Vsg value (reflectivity of the bare drum surface) could not be adjusted to within 4.0±0.2V within 20 sec. after automatic adjustment began.
Causes: • ID sensor dirty • ID sensor harness loose, broken, defective • ID sensor harness connection at IOB loose, broken, defective. • ID sensor defective • Exposure unit defective • Development unit defective • TD power pack defective
Remedy:
Code: SC401
Description: ID sensor error 2: Vsg When the ID sensor was calibrated, Vsg (reflectivity of the bare drum surface) was detected less than 2.5V after two attempts. -or- After calibration, Vsg was detected as 5.0V at PWM adjustment and PWM=0.
Causes: • Dirty ID sensor • ID sensor harness connection loose, broken, defective • TD power pack defective • IOB defective
Remedy:
Code: SC402
Description: ID sensor error 3: Vsp The Vsp (reflectivity of ID sensor pattern) value was detected at "0" or more than 2.5V when the ID sensor was calibrated during process control.
Causes: • OPC drum gear Allen screw loose • ID sensor dirty • ID sensor harness loose, broken, defective • ID sensor defective • IOB defective • Exposure unit defective • Development unit defective • TD power pack defective
Remedy:
Code: SC403
Description: ID sensor error 4: LED current error During Vsg adjustment (reflectivity of the bare drum surface) during process control, the averaged PWM output was zero or 255.
Causes: • ID sensor dirty • ID sensor harness connection loose, broken, defective • ID sensor defective • IOB defective • Exposure unit defective • Development unit defective • TD power pack defective
Remedy:
Code: SC406
Description: ID sensor error 5: edge detection error during calibration The voltage reading of the ID sensor pattern during process control remained less than 2.5V for more than 0.6 sec. during process control.
Causes: • ID sensor dirty • ID sensor harness connection loose, broken, defective • ID sensor defective • IOB defective • Exposure unit defective • Development unit defective • TD power pack defective
Remedy:
Code: SC440
Description: Transfer voltage output error 100 ms after the TD power pack started to output the transfer voltage, the feedback voltage was detected less than 0.5 V for more than 200 ms.
Causes: • Defective high voltage cable caused a voltage leak • TD power pack defective