CHAPTER 6 PERIODIC MAINTENANCE
6-30
4.5
Drum Cleaner Replacement
Criterion of Replacement
The drum cleaner should be replaced with a new one according to the periodical
maintenance cycle set out in Table 6-4.
When time is due for replacement of the drum cleaner, the following message appears on the
control panel.
REPLACE 240K KIT
Purpose of Replacement
To prevent the cleaning efficiency from declining due to deterioration of the drum cleaner.
PRECAUTION
When installing the drum cleaner, firstly locate the bearing and the bias pole into the
contacts. Reconfirm this connection prior to testing the printer.
Necessary Tools and Replacement Materials
x
Two or three pieces of cotton cloth for cleaning.
x
Drum cleaner (one unit)
Work Procedure
Sequence of Disassembling
(1) Turn off the printer.
(2) Open the top cover.
Sequence of Replacement
(1) Remove the cleaner cover by releasing
the two hooks.(Fig.6-24)
Fig. 6-25
(hook)
(hook)
Cleaner cover
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 ...