Code :

Code: 201
Description: Polygon motor error . The polygon motor starts operating. - The lock signal is not detected within 20 seconds. . The polygon motor starts operating. - The lock signal is detected within 20 seconds. - After a 3-second waiting time, no lock signal is detected within 20 seconds. . The polygon motor strops operating. - The lock signal is not detected within 20 seconds. . The polygon motor is operating. - The lock signal remains undetected for 0.5 seconds.
Causes: • Defective polygon motor • Defective harness

Code: 220
Description: 1st beam synchronization error A polygon motor lock is detected; the LD door is closed; the LD remains on. - The LD error (1st beam synchronization error) continues for 0.5 seconds.
Causes: • Disconnected synchronization detector board • Defective LD unit • Defective BCU

Code: 221
Description: 2nd beam synchronization error A polygon motor lock is detected; the LD door is closed; the LD remains on. - The LD error (2nd beam synchronization error) continues for 0.5 seconds.
Causes: • Disconnected synchronization detector board • Defective LD unit • Defective BCU

Code: 230
Description: FGATE on error A transfer belt mark is detected. - No FGATE on signal is detected within 175+50 milliseconds.
Causes: • Defective BCU

Code: 231
Description: FGATE off error A FGATE assert signal is detected. - The FGATE negate signal is not detected within 30 seconds.
Causes: • Defective BCU

Code: 241
Description: LD error An LD error continues for 0.5 seconds. (After an LD error is detected, an LD error release is written to the GAVD chip during monitoring.)
Causes: • Defective LD unit

Code: 280
Description: Image transfer belt mark detection error . An imaging process starts. - No belt mark is detected in 1 revolution. . A color imaging process starts. - A mono color image is transferred. - FGATE becomes active. - No belt mark is detected in 1 revolution. . Thick paper or OHP film is used. - The belt slows down. - No belt mark is detected in 1 revolution.
Causes: • Defective BCU • Poor electrical connection • Noise

Code: 281
Description: GAPCI communication error Data is transferred. - The CPU does not detect the communication ACK signal from GAPCI.
Causes: • Defective BCU

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