Cleaning The Dustproof Glass In The Laser Unit - Brother HL-3450CN Service Manual

CHAPTER 6 PERIODIC MAINTENANCE
2.8

Cleaning the Dustproof Glass in the Laser Unit

The dustproof glass in the laser unit should be cleaned according to the periodic
maintenance cleaning cycle set out in Table 6-3.
Tools to Prepare
Cotton cloth (2
Cotton swab (2
Cleaning Procedure
(1) Turn off the power supply.
(2) Open the top cover and the front cover.
(3) Remove the toner cartridges and the OPC belt cartridge.
(4) Open the dust-proof glass from the laser unit.
(5) Clean the surface of the dustproof glass with a cotton swab.
NEVER use alcohol or similar solvents for cleaning the dustproof glass, otherwise it will be a
cause of image failures.
Laser unit
Laser WARNING Label
3 pieces)
3 pieces)
CAUTION
Fig. 6-9
6-16