Service manual

SC322: Laser synchronizing signal error
Type: 5
- Description -
The main control board notifies the SCU when image transfer is
aborted and the image transfer buffer (FIFO) on the printer main board
is full or in an error condition.
- Detection Timing -
During the image transfer process
- Possible Causes -
• Laser synchronizing detector board
• Main control board
• LD control board
SP-Log: 7-402-3
SC323: LD drive current over (LD error)
Type: 2
- Description -
The main control board notifies the SCU of LD overcurrent.
- Detection Timing -
During LD writing
- Possible Causes -
• LD control board
SP-Log: 7-402-3
SC325: Magnification correction error
Type: 5
- Description -
When the polygon motor is activated, a laser synchronizing detection
output cannot be detected within a certain time between the laser
synchronizing detector boards 1 and 2. The main control board notifies
the SCU when the detection fails three times.
- Detection Timing -
At the activation of the polygon motor
- Possible Causes -
• Laser synchronizing detector board
• Main control board
• LD control board
SP-Log: 7-402-3
Trouble-
shooting
SERVICE CALL CONDITIONS
SM 6-7 A166/A187/A189
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA