Causes: A problem occurred with the CIS or scanner motor in the flatbed scanner: • After CIS power check • After shading • After CIS failed to return to home position
Remedy: • Flatbed scanner motor connector (main board) loose, broken, or defective • CIS flat film connector at main board loose, broken or defective • CIS flat film connector at CIS loose, broken, or defective • Scanner motor defective • CIS defective
Code: SC202
Description: Polygon Motor On Timeout Error
Causes: No lock signal was received within 10 sec. after the polygon motor turned on. • Polygon motor driver I/F harness loose, broken, defective • Polygon motor broken or defective
Remedy: • Cycle the machine off/on • Replace I/F harness • Replace polygon motor • Replace laser unit
Code: SC203
Description: Polygon Motor Off Timeout Error
Causes: The lock signal did not go HIGH (inactive) within 20 sec. after the polygon motor turned off. • Polygon motor I/F harness loose, broken, defective • Motor driver board defective • Motor defective
Remedy: • Cycle the machine off/on • Replace I/F harness • Replace polygon motor • Replace laser unit
Code: SC204
Description: Polygon Motor Lock Signal Error
Causes: Four samplings within 200 ms revealed that the polygon motor lock signal remained HIGH beyond the prescribed number of revolutions. • I/F harness between the motor and driver board is loose, broken, defective • Driver board defective • Motor defective
Remedy: • Cycle the machine off/on • Replace I/F harness • Replace polygon motor • Replace laser unit
Code: SC220
Description: Beam Synchronization Error
Causes: Top cover (or maintenance cover) is down and locked, and the polygon motor is locked, but laser synchronization could not be achieved within 40 msec. • The I/F harness of the LDB is loose, broken defective • Polygon motor is locked • The angle of incidence of the laser beam and photo-detector is not correct
Remedy: • Cycle the machine off/on • Replace the I/F harness • Replace polygon motor • Replace laser unit • Replace main board
Code: SC491
Description: Bias Leak
Causes: A bias leak has occurred for the drum charge, development charge, or transfer charge. PWM signals are sampled at 20 msec. intervals. This SC is issued if 10 PWM samplings within 200 msec. are abnormal. • HVPS harness loose, broken, defective • HVPS board defective • AIO terminal defective
Remedy: • Cycle the machine off/on • Check all the harness connections of the HVPS • Check spring-loaded AIO terminal installation behind the HVPS. • Replace HVPS