Brother HL-3450CN Service Manual page 180

CHAPTER 6 PERIODIC MAINTENANCE
No. Parts Name
7 Transfer Drum
Dustproof
8
Glass of Laser
Unit
9 Printer Interior
10 Oil Pad
[Note] *1: If a periodic maintenance agreement has been made, checks will be made at every periodic maintenance
The register roller, paper guide, and paper exit roller should be cleaned every 20K prints. Failure to do so may cause paper jams inside or outside of
the printer.
Periodic Maintenance Cleaning Work
Cleaning Work
Description
1. Remove the transfer drum.
2. Clean the dirt from the transfer drum
surface using a cloth.
1. Remove the toner cartridges and the OPC
belt cartridge.
2. Remove the dust-proof glass.
3. Using a dry cloth and swab, clean the dirt
from the dust-proof glass.
1. Remove the toner cartridges and OPC
belt cartridge.
2. Clean the printer's base, using a toner
vacuum cleaner and dry cloth.
1. Remove the oil pan unit 3.
2. Using a slotted screwdriver, clean the
white felt surface of the oil pad and the oil
blade of the oil pan unit 3.
service to prevent any problems from occurring.
Table 6-3
Section
N
2.7
N
N
2.8
N
N
2.9
N
N
2.10
CAUTION
6-8
Cleaning Cycle *1
(Condition or Case)
Defective image
Periodic maintenance
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Periodic maintenance
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Periodic maintenance
Periodic maintenance