HL-3450CN SERVICE MANUAL
6-21
4. PERIODIC MAINTENANCE PROCEDURES
The printer displays messages on the control panel screen to indicate replacement is due for
most of the periodic maintenance parts in both the Video Controller Mode and the Engine
Controller Mode.
However, the procedure to clear the message differs between the two modes. The following
sections describe the Video Controller Mode messages only and should be used when
replacing parts that have reached their life.
If replacement parts have to be replaced for Service reasons before their life cycle is
completed then the Engine Controller Mode should be used to reset the part life.
4.1
OPC Belt Cartridge Replacement
Criterion of Replacement
The OPC belt cartridge should be replaced with a new one at 120,000 images or 12 months
whichever comes first.
When time is due for replacement of the OPC belt cartridge, the following message appears
on the control panel.
REPLACE OPC BELT
PRECAUTION
x
Do not directly touch the OPC belt surface with bare
hands or gloves.
x
If the belt is exposed for more than two minutes to a light
source of 800 lux, the belt may be damaged.
Replacement Procedure
(1) Press the power button to turn off the printer.
(2) Open the front cover and the top cover.
CAUTION
When installing or removing the OPC belt, be sure to open the front cover first. Failure to do
so will cause the OPC belt to be damaged due to contact with the toner cartridges.
Summary of Contents for HL-3450CN Series
Page 15: ...HL 3450CN SERVICE MANUAL xiii 3 Rating Label For US For Europe 4 Operation Label 5 Jam Label ...
Page 17: ...HL 3450CN SERVICE MANUAL CHAPTER 1 PRODUCT OUTLINE ...
Page 27: ...HL 3450CN SERVICE MANUAL CHAPTER 2 SPECIFICATIONS ...
Page 39: ...CHAPTER 3 INSTALLATION ...
Page 54: ...HL 3450CN SERVICE MANUAL CHAPTER 4 STRUCTURE OF SYSTEM COMPONENTS ...
Page 104: ...HL 3450CN SERVICE MANUAL 4 51 Main PCB Circuit Diagram 1 8 CODE B512137CIR 1 8 LJ8907001 NAME ...
Page 106: ...HL 3450CN SERVICE MANUAL 4 53 Main PCB Circuit Diagram 3 8 CODE B512137CIR 3 8 LJ8907001 NAME ...
Page 108: ...HL 3450CN SERVICE MANUAL 4 55 Main PCB Circuit Diagram 5 8 CODE B512137CIR 5 8 LJ8907001 NAME ...
Page 110: ...HL 3450CN SERVICE MANUAL 4 57 Main PCB Circuit Diagram 7 8 CODE B512137CIR 7 8 LJ8907001 NAME ...
Page 126: ...HL 3450CN SERVICE MANUAL CHAPTER 5 CONTROL PANEL OPERATION ...
Page 173: ...HL 3450CN SERVICE MANUAL CHAPTER 6 PERIODIC MAINTENANCE ...
Page 208: ...CHAPTER 7 DISASSEMBLY RE ASSEMBLY ...
Page 264: ...HL 3450CN SERVICE MANUAL CHAPTER 8 TROUBLESHOOTING ...
Page 310: ...HL 3450CN SERVICE MANUAL 8 47 5 IMAGE FAILURE 1 2 3 4 5 6 7 8 9 a 9 b 10 11 12 13 14 ...
Page 311: ...CHAPTER 8 TROUBLESHOOTING 8 48 15 a 15 b 16 17 18 19 20 21 22 23 24 25 26 27 28 244m m 29 ...