Brother HL-3450CN Series, Service Manual

Page: 198 / 365

CHAPTER 6 PERIODIC MAINTENANCE
6-26
4.3 Transfer Roller Replacement
Criterion of Replacement
The transfer roller should be replaced at the same time as a new discharger according to the
periodical maintenance cycle set out in Table 6-4.
When time is due for replacement of the transfer roller, the following message appears on the
control panel.
REPLACE 240K KIT
Purpose of Replacement
To prevent the transfer efficiency declining due to deterioration of the transfer roller.
Necessary Tools and Replacement Materials
1) Two or three pieces of cotton cloth for cleaning.
2) Transfer roller (one unit)
Work Procedures
Sequence of Disassembling
(1) After turning off the printer, unplug the
power cable from the power outlet.
(2) Open the rear access cover. (Fig.6-18)
Fig. 6-19
Sequence of Replacement
(1) Lift the transfer roller lock levers to
release both ends of the roller. (Fig.6-
19)
Fig. 6-20
Rear access cover
Lock lever
Transfer roller