Description: Thermistor 2 error (open circuit) When the temperature detected by the thermistor 2, which is at the right (paper feed section) side of the laser optics unit, is less than -30°C for 10 seconds consecutively, the BCU determines that the circuit is opened and displays this SC code.
Remedy: 1. Turn the main switch off and on. 2. Check the cable connections. 3. Replace the thermistor. 4. Replace the BCU.
Code: SC 461-002
Description: Thermistor 2 error (short circuit) When the temperature detected by the thermistor 2, which is at the right (paper feed section) side of the laser optics unit, is higher than 70°C for 10 seconds consecutively, the BCU determines that the circuit is shorted and displays this SC code
Remedy: 1. Turn the main switch off and on. 2. Check the cable connections. 3. Replace the thermistor. 4. Replace the BCU.
Code: SC 502
Description: Paper Tray 2 error When the tray lift motor is turned on, if the upper limit is not detected within 10 seconds, the machine asks the user to reset the tray. If this condition occurs three consecutive times, the SC is generated.
Causes: • Defective paper lift sensor • Defective tray lift motor • Defective bottom plate lift mechanism
Remedy: 1. Turn the main switch off and on. 2. Check if the bottom plate smoothly moves up and down manually. 3. Check and/or replace the paper lift sensor. 4. Check and/or replace the tray lift motor.
Code: SC195
Description: Serial Number Mismatch • Serial number stored in the memory does not consist of the correct code.
Causes: • EEPROM defective • BCU replaced without original EEPROM
Remedy: Open the front cover and turn on the main switch. Check the serial number with SP5-811-002. If the stored serial number is incorrect, contact your product specialist for details of how to solve the problem.
Code: SC201
Description: Polygon motor error • The polygon mirror motor does not reach the targeted operating speed within 15 seconds after turning on. • The lock signal does not become low within 15 seconds after turning off the polygon motor.
Remedy: 1. Turn the main switch off and on. 2. Check the cables. 3. Replace the polygon motor.
Code: SC220
Description: Synch. detection signal error 1 220-001: Y 220-002: M 220-003: C 220-004: K0 220-005: K1 The front (for K&Y) or rear (for C&M) laser synchronizing detector board, which is used to determine the start timing of laser writing, does not send a signal while the polygon motor is operating normally and the LD is on.
Causes: • Disconnection of the cable between front (K&Y) or rear (C&M) synchronizing detector board and the LD unit • Incorrect installation of front (K&Y) or rear (C&M) synchronizing detector board (the beam does not target the photo detector.) • Defective LD unit • Defective BCU
Remedy: 1. Turn the main switch off and on. 2. Check the cable connection between front (for K&Y) or rear (for C&M) synchronizing detector board and the LD unit. 3. Check or reinstall the front (for K&Y) or rear (for C&M) synchronizing detector board. 4. Replace the front (for K&Y) or rear (for C&M) synchronizing detector board. 5. Replace the LD unit. 6. Replace the BCU.