Periodic Maintenance Procedures; Replacement Of Opc Belt Cartridge - Brother MFC-9420CN Service Manual

6.4 PERIODIC MAINTENANCE PROCEDURES

Maintenance Work should be implemented according to the "Periodic Maintenance Parts and
Maintenance Cycle" set out in Table 6-1.
No. Name of Replacement Part
OPC belt cartridge
1
Fusing Unit
2
3 Cleaning Roller PU
4 Transfer Roller ASSY PU
5 Paper Feed Roller
6 Transfer Unit PU

6.4.1 Replacement of OPC Belt Cartridge

<Criterion of Replacement>
OPC belt cartridge should be replaced with a new cartridge at 60,000 images or 12 months
whichever comes earlier.
When time is due for replacement of OPC belt cartridge, the following maintenance message
appears on the LCD of the control panel.
CAUTION
• Do not directly touch the OPC belt surface with bare
hands or gloves.
• If OPC belt is exposed for more than 2 minutes under the
light of 800 lux, it may cause the defective image.
<Work Procedure>
Sequence of Disassembling
(1) Turn off the machine's power switch.
(2) Open the scanner unit.
Table 6-1
Replacement Cycle
Every 60,000 images
Every 60,000 pages
Every 120,000 pages
Every 120,000 pages
Every 120,000 pages
Every 300,000 images
Replace OPC Belt
6 -6
Operator
Serviceperson or
Customer
Serviceperson or
Customer
Serviceperson only
Serviceperson only
Serviceperson only
Serviceperson only
Confidential