Description: IPU (BICU) error (DRAM initialization failure) An error occurred during performed every time the machine is turned on, or returns to full operation from energy saving mode.
Causes: • BICU defective (Macaron/ DRAM device connection error) • DRAM device defective
Remedy: Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step. 1. Reconnect the all connectors on BICU board if they are disconnected, or loose. 2. Replace the BICU (PCB10).
Code: SC195-00
Description: Machine serial number error Comparison of the product identification code in the machine serial number (11 digits).
Causes: The product identification code in the machine serial number (11 digits) does not match.
Remedy: Re-enter the machine serial number.
Code: SC202-00
Description: Polygon Motor: ON Timeout Error After the polygon mirror motor (M27) turned on, or within the specified time (sec.) after the rpm’s changed, the motor did not turn normally.
Causes: • Polygon mirror motor (M27) or polygon motor driver defective • The interface harness to the polygon motor driver damaged or not connected correctly. • BICU defective • Polygon mirror motor (M27) drive pulse cannot be output correctly. (Polygon controller) • PSU defective (polygon power supply, fuse defective) • AC power supply voltage error
Remedy: 1. Check if the SC occurs by turning the power OFF then ON with the front door open. If the SC occurs again, do the following steps. 2. Reconnect the following connectors: • Laser Unit - BICU • Paper Transport IOB - BICU (CN587 / CN574 connectors on the BICU) 3. Reconnect the relay connector of the laser unit. 4. Replace the polygon mirror motor (M27). 5. Replace the BICU (PCB10). 6. Replace the harness between the laser unit and the BICU. 7. Replace the laser unit. 8. Check the outpur voltage (if there are any defects, replace the fuse) 9. Check the following harnesses: • Paper Transport IOB - BICU • Paper Transport IOB - PSU (CN164/CN152) 10. Replace the harness between the BICU and the Paper Transport IOB.
Code: SC203-00
Description: Polygon Motor: OFF Timeout Error The polygon motor fails to stop within the specified time after receiving the signal to stop.
Causes: • Polygon mirror motor (M27) or polygon motor driver defective • The interface harness to the polygon motor driver damaged or not connected correctly. • BICU defective
Remedy: 1. Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. 2. Check the following harnesses: 3. Laser Unit - BICU (CN587/CN574 connectors on the BICU) 4. Replace the polygon mirror motor (M27). 5. Replace the BICU (PCB10). 6. Replace the harness between the laser unit and the BICU. 7. Replace the laser unit.
Code: SC204-00
Description: Polygon Motor: XSCRDY Signal Error The polygon motor fails to rotate correctly when running (printing).
Causes: • The interface harness to the polygon motor driver damaged or not connected correctly. • Polygon mirror motor (M27) or polygon motor driver defective • BICU defective • PSU defective • AC power supply voltage error
Remedy: Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step. 1. Reconnect the following connectors: • Laser Unit - BICU • Paper Transport IOB - BICU (CN587 / CN574 connectors on the BICU) 2. Reconnect the relay connector of the laser unit. 3. Replace the polygon mirror motor (M27). 4. Replace the BICU (PCB10). 5. Replace the harness between the laser unit and the BICU. 6. Replace the laser unit. 7. Check the output voltage (if there are any defects, replace the fuse). 8. Check the following harnesses: • Paper Transport IOB - BICU • Paper Transport IOB - PSU (CN164/CN152) 9. Replace the harness between the BICU and the Paper Transport IOB.
Code: SC220-01, SC220-04
Description: SC220-01 Leading Edge: LD1 synchronization detection error: Bk SC220-04 Leading Edge: LD1 synchronization detection error: Ye The synchronization detection signal (periodic write/scan signal) absent.
Causes: • The interface harness to the synchronization detection unit damaged or not connected correctly. • Synchronization detection board defective • Beam does not enter photo detector. • LDB defective
Remedy: 1. Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. 2. Remove the laser unit, and then check for condensation. 3. Reconnect the connectors between LDB (Synchronizing detector board) and BICU. 4. Replace the BICU (PCB10). 5. Replace the Laser unit. 6. Replace the harness between LDB (Synchronizing detector board) and BICU.