Chapter 3 Mechanical System; I. Externals And Controls - Canon LBP-2000 Service Manual

MECHANICAL SYSTEM
To disassemble/assemble the Printer, following the instructions given in this chapter. The service
person is expected to identify the cause of a fault by referring to the descriptions in Chapter 4
'Troubleshooting,' and then to replace appropriate parts according to the instructions given while
heeding the following:
1 . Before dissembling/assembling or moving the Printer, take out the toner cartridge if neces-
sary. If removed, it must always be kept in a protective bag or covered with paper to protect the
photosensitive drum from the effects of light (if for a short time).
2 . Disconnect the power plug for disassembly/assembly work.
3 . Unless otherwise noted, reverse the steps used to disassemble when assembling the Printer.
4 . Identify the screws by type (length, diameter) and location.
5 . As a rule, do not operate the Printer with any of its parts removed.
6 . When handling a PCB, be sure to touch a metal area of the Printer to be free of static charges,
thereby preventing damage to the PCB.
7 . Do not touch the rubber portion of the pickup roller or the transfer charging roller with bare
h a n d s .
8 . Take full care when disconnecting the flat cable. When connecting it, be sure to keep it straight,
never fitting it at an angle.
I. EXTERNALS AND CONTROLS .... 3 - 1
II. PCBS ..................................................... 3 - 8
III. DRIVE MECHANISMS .................... 3 - 1 5
IV. FEEDING MECHANISMS ............... 3 - 1 7
V. EXPOSURE MECHANISMS ........... 3 - 2 5
CHAPTER 3
VI. CHARGING/DEVELOPING/
VII. FIXING SYSTEM ............................... 3 - 2 7
VIII. PAPER FEEDER ............................... 3 - 3 4
CLEANING MECHANISMS ............ 3 - 2 6