• Code: 259
• Description: Laser synchronizing detection error: End position [M]. The laser synchronizing detection signal for the end position of LDB [Y], [M], [C] or [K] is not detected when detecting the main scan length.
• Causes: • Disconnected or defective harness to synchronizing detector for end position • Defective synchronizing detector board for end position
• Remedy: 1. Check the harness connection to the laser synchronizing detector. 2. Replace the laser synchronizing detector for end position.

• Code: 260
• Description: Laser synchronizing detection error: End position [C]. The laser synchronizing detection signal for the end position of LDB [Y], [M], [C] or [K] is not detected when detecting the main scan length.
• Causes: • Disconnected or defective harness to synchronizing detector for end position • Defective synchronizing detector board for end position
• Remedy: 1. Check the harness connection to the laser synchronizing detector. 2. Replace the laser synchronizing detector for end position.

• Code: 261
• Description: Laser synchronizing detection error: End position [K]. The laser synchronizing detection signal for the end position of LDB [Y], [M], [C] or [K] is not detected when detecting the main scan length.
• Causes: • Disconnected or defective harness to synchronizing detector for end position • Defective synchronizing detector board for end position
• Remedy: 1. Check the harness connection to the laser synchronizing detector. 2. Replace the laser synchronizing detector for end position.

• Code: 270
• Description: Skew correction error: [Y]. The accumulated pulses of the BTL adjustment motor is outside the correct range (± 150 pulses).
• Causes: • Disconnected or defective harness to the BTL adjustment motor for the LD unit. • Defective skew correction motor
• Remedy: 1. Check the harness connection to the BTL adjustment motor for the LD unit. 2. Replace the laser unit.

• Code: 271
• Description: Skew correction error: [M]. The accumulated pulses of the BTL adjustment motor is outside the correct range (± 150 pulses).
• Causes: • Disconnected or defective harness to the BTL adjustment motor for the LD unit. • Defective skew correction motor
• Remedy: 1. Check the harness connection to the BTL adjustment motor for the LD unit. 2. Replace the laser unit.

• Code: 272
• Description: Skew correction error: [C]. The accumulated pulses of the BTL adjustment motor is outside the correct range (± 150 pulses).
• Causes: • Disconnected or defective harness to the BTL adjustment motor for the LD unit. • Defective skew correction motor
• Remedy: 1. Check the harness connection to the BTL adjustment motor for the LD unit. 2. Replace the laser unit.

• Code: 285
• Description: MUSIC (Mirror Unit for Skew and Interval Correction) error. MUSIC adjustment fails four times consecutively.
• Causes: • Color registration error is too high • Defective MUSIC sensor • Low toner density
• Remedy: 1. Check the amount of toner. 2. Replace the MUSIC and ID sensor board.

• Code: 300
• Description: Charge corona wire high voltage error: K. The high voltage error signal of the charge corona wire is detected for 60 ms or more.
• Causes: • Disconnected harnesses • Defective charge corona unit • Defective CGB HVPS • Defective BCU • Defective ground plate of the drum unit
• Remedy: 1. Check the harness connection. 2. Reinstall or replace the charge corona unit. 3. Replace the CGB HVPS. 4. Replace the BCU. 5. Replace the drum unit.