Description: FGATE timeout
231-001: Y 231-002: M 231-003: C 231-004: K When LD units emit laser beams to print a job, the feedback signal stays Low and becomes High after laser exposure for a page is completed. The SC code is detected in the following cases: • When the feedback signal stays Low 7 seconds after completing the laser exposure, or • When the feedback signal stays Low until the laser exposure timing for the next page in multi-page print mode.
Causes: • Poor connection between BCU and LD units • Defective BCU • Defective LD unit
Code: 240
Description: LD over
240-001: Y 240-002: M 240-003: C 240-004: K The power supply for the LD unit exceeds 67 mA.
Causes: • LD worn out (current/light output characteristics have changed.) • LD broken (short circuit)
Code: 260
Description: LD HP sensor not switched on (for K only)
During homing, it takes more than five seconds to switch the HP sensor on (the sensor actuator does not cover the sensor).
Causes: • Defective motor • Defective sensor • Mechanical problem when switching the actuator • Brown fuse (FU81) on the Power supply unit
Code: 261
Description: LD HP sensor not switched off (for K only)
After the laser beam pitch was changed, it takes more than five seconds for the HP sensor to switch off.
Causes: • Defective motor • Defective sensor • Mechanical problem when switching the actuator • Brown fuse (FU81) on the Power supply unit
Code: 285
Description: Line position adjustment (MUSIC) error
Line position adjustment fails three consecutive times.
Causes: • Pattern sampling error due to insufficient image density of patterns used for the adjustment • Inconsistency in the sampling line position adjustment pattern due to dust on the pattern, damage to the OPC drum, damage or toner dropped on the transfer belt, or a dirty or defective ID sensor
Code: 370
Description: TD sensor [K]: Adjustment error
During the developer initialization, the output value of the TD sensor is without the adjustment range (3.0 ± 0.1V).
Causes: • Poor connection (TD sensor outputs is less than 0.5V.) • Defective TD sensor