Laser Unit
D0CA/D0C9/D0C8/D0CB 7-44 SM
7.5.4 IMAGE SKEW ADJUSTMENT
In this machine, you can adjust the image skew correction manually. When turning the adjuster
[A] clockwise or counterclockwise, the front of the lens moves to the left or right, and this adjusts
the image skew.
Callout Item Callout Item
[A] Adjuster [C] OPC Drum
[B] Lens (L2) - -
7.5.5 DUST SHIELD GLASS
The laser unit is located between the upper side of toner bottle and PCDU. The LD unit emits a
laser beam to above the OPC drum. This mechanism keeps the shield glass free from toner
dropping and thus requires no cleaning tool.
7.5.6 LD SAFETY SWITCH
The +24VL_LPS goes through the interlock switch and is converted the +5VS_LPS on the BiCU
(PCB1).
The +5VS_LPS are supplied to the two LD boards respectively. A safety switch turns OFF when
the front cover or the right door is opened. As a result, the power supply (+24VL_LPS) to the
BiCU (PCB1) is cut off. This system prevents unexpected laser emission, ensures user safety
and technician safety.
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