Canon NP6218 Manual De Usuario
COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3
EXPOSURE SYSTEM
I. BASIC
OPERATION ...........................3-1
A. Varying the Reproduction Ratio ....3-1
II.
LENS DRIVE SYSTEM ......................3-1
A. Outline ...........................................3-1
B. Lens Motor Drive Circuit................3-3
C. Basic Sequence of Operations
A. Outline ...........................................3-1
B. Lens Motor Drive Circuit................3-3
C. Basic Sequence of Operations
(lens drive system; non-Direct)......3-4
III. SCANNING DRIVE SYSTEM.............3-5
A. Driving the Scanner.......................3-5
IV. DISASSEMBLY AND ASSEMBLY ......3-9
A. Scanner Drive Assembly ...............3-9
B. Lens Drive Assembly.....................3-18
B. Lens Drive Assembly.....................3-18
This chapter discusses the principles of operation used for the copier’s lens drive unit and scanner
drive unit. It also explains the timing at which these drive units are operated, and shows how they may
be disassembled/assembled and adjusted.
be disassembled/assembled and adjusted.