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have download a number of manuals todate , most are excellant, one or two sometimes a little difficult to read but a least avaialable, great site .
Brad.
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Excellent had everything I wanted, very happy with purchase
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This service is relatively cheap, document is fast available, schematic is readable.
Thanks.
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So far I´m a satisfied customer. I have only downloaded "TECHNICS SX-KN470 Service Manual" maybe I will use it later.
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Peter
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Good manual. It is complete and of high quality, both text and graphics. The schematics are with the original big size, so it can be viewed or printed without any loss of resulution and sharpness.
CHAPTER 3 EXPOSURE SYSTEM
I. BASIC OPERATION
A. Varying the Reproduction Ratio
The reproduction ratio across the photosensitive drum is varied by the lens drive system; on the other hand, the ratio around the drum is varied by the scanner drive system. The lens drive system uses a zoom lens; as shown in Figure 3-101, the position and focal distance of the lens are changed to vary the reproduction ratio across the photosensitive drum. The scanner drive system varies the reproduction ratio around the photosensitive drum by moving the No. 1 mirror relatively faster (reduction) or slower (enlargement) than the peripheral speed of the photosensitive drum.
Direct F F'
Reduce F1
F1'
Enlarge F2
F2'
Figure 3-101
II. LENS DRIVE SYSTEM
A. Outline
The lens drive system is driven by the lens motor (M3). The drive of the lens motor is transmitted to the blank exposure unit through a relay gear. (See p. 4-18.) When the lens is moved, the solenoid (SL1) is turned on to engage the relay gear with the lens gear; when the lens motor rotates in the direction of the arrow in this condition, the lens is moved in the direction of enlargement (�) by the work of the relay lens gear and lens cable. The blank exposure shutter, on the other hand, moves according to the distance traveled by the lens for reduction, thereby blanking (whiting) out the areas on both ends of the copy. The copier�s scanner lens home position sensor (PS2) is located at the center of the scanner lens drive rail so that the scanner lens home position may be detected early upon power-on, thereby speeding up the generation of the first copy. In addition, the scanning lens moves to the appropriate position in response to a press on each ratio button, thereby shortening the time it takes to generate the first copy.
COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-1
 $4.99 NP6218 CANON
Parts Catalog Parts Catalog only. It's available in PDF format. Useful, if Your equipment is broken and You need t…
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