﻿Removing the Laser Scanner Unit

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﻿﻿Laser Exposure System
Removing the Laser Scanner Unit
CAUTION:
When servicing the area around the laser assembly, be sure to turn off the main power.
CAUTION:
Do not disassemble the Laser Scanner Unit because it needs adjustment.
Disassembling the unit may cause functional problems.
<Preparation>
1) Remove the inside base cover. (Reference)
2) Remove the left cover. (Reference)
<Procedure>
1) Remove the scanner retaining plate.
1 screw
2) Draw the Laser Scanner Unit slightly.
2 connectors
CAUTION:
Do not touch the PCB on the laser scanner unit.
Do not change the setting of the variable resistor on the PCB.
3) Remove the laser scanner unit.
2 pieces of sponge
2 connectors
<Actions after Parts Replacement>
When replacing the laser unit, enter the values recorded on the label affixed to the laser unit to be replaced for the following in the service mode:
Input example
Adjust of write start position of laser
A. (LV1) COPIER > ADJUST > LASER > PVE-OFST > 136
Difference in magnification between the lasers.
B. (LV1) COPIER > ADJUST > LASER > LDADJ1-K > -10
C. (LV1) COPIER > ADJUST > LASER > LDADJ2-K > 0
D. (LV1) COPIER > ADJUST > LASER > LDADJ3-K > 147
Difference in the phase between the lasers
E. (LV1) COPIER > ADJUST > LASER > LDADJ4-K > 93
F. (LV1) COPIER > ADJUST > LASER > LDADJ5-K > 16
G. (LV1) COPIER > ADJUST > LASER > LDADJ6-K > 117