• Code: SC236
• Description: FGATE error 1: Feedback remains HIGH for C write. After the start of timing to create the cyan image, the PFGATE register of the GAVD (ASIC) does not assert, even after 5 sec. when: • Images are created on the drum. • MUSIC patterns are created on the transfer belt. The BICU received no feedback (LOW signal) from the LD unit to indicate that the lasers started firing at the prescribed time to create the patterns.
• Remedy: • GAVD (ASIC) on the BICU defective • PCI I/F on the IPU defective • ASIC on the IOB defective • Controller board disconnected, defective • Harness between the BICU and LDB unit disconnected, loose, or defective. • Check board connections, replace

• Code: SC237
• Description: FGATE error 1: Feedback remains LOW for C write. After the start of timing to create the cyan image, the PFGATE register of the GAVD (ASIC) does not assert, even after 5 sec. when: • Images are created on the drum. • MUSIC patterns are created on the transfer belt. The BICU received a LOW feedback signal, but the signal remained LOW (indicating the lasers were still operating), even after creation of the next image should have started.
• Remedy: • GAVD (ASIC) on the BICU defective • PCI I/F on the IPU defective • ASIC on the IOB defective • Check board connections, replace

• Code: SC240
• Description: LD error 1: K An error is asserted at the LD error terminal of the black, yellow, magenta, or cyan LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
• Remedy: • LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

• Code: SC241
• Description: LD error 1: Y An error is asserted at the LD error terminal of the black, yellow, magenta, or cyan LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
• Remedy: • LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

• Code: SC242
• Description: LD error 1: M An error is asserted at the LD error terminal of the black, yellow, magenta, or cyan LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
• Remedy: • LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

• Code: SC243
• Description: LD error 1: C An error is asserted at the LD error terminal of the black, yellow, magenta, or cyan LD driver after initialization of the LD because the power to the LD was higher or lower than the prescribed limit.
• Remedy: • LD defective due to wear, damage, short circuit • LDB harness disconnected, loose or defective

• Code: SC268
• Description: Optical unit sensor error. At power ON, one of the two temperature sensors in the optics unit detected a temperature lower than 0°C for more than 1 sec. -or- It detected a temperature higher than 100°C for more than 1 sec.
• Remedy: • Thermistor disconnected (causes extremely low temperature reading) • Thermistor damaged and short circuited (causes extremely high temperature reading) • BICU defective

• Code: SC269
• Description: Exposure thermistor 2 error. At power on, exposure thermistor 2 detected a temperature lower than 0°C for more than 1 sec. -or- It detected a temperature higher than 100°C for more than 1 sec.
• Remedy: • Thermistor disconnected (causes extremely low temperature reading) • Thermistor damaged and short circuited (causes extremely high temperature reading) • BICU defective