Operations; Outline - Canon ImageRunner 600 Service Manual

I . OPERATIONS
A.

Outline

Table 3-101 shows the major functions of the original exposure system.
Item
Original illumination
Original scanning
Scanner position
detection
Enlargement/reduction
Scanner drive control
Scanning lamp control
Original size detection
Others
COPYRIGHT © 1999 CANON INC.
Illumination by a fluorescent lamp
Book mode: scanning by the No. 1 mirror mount
ADF mode (one-side reading): scanning by stream reading (2 fixed points
ADF mode (double-sided reading): scanning by the No. 1 mirror mount
By a scanner home position sensor (PS1)
By an image leading edge sensor (PS3)
Main scanning direction: images are processed by a line memory
Sub scanning direction: No. 1 mirror mount is moved at different speeds
No. 1 mirror mount: pulse control by a stepping motor (M5)
Lens mount: fixed in position
[1] Pre-heat control by a fluorescent lamp heater
[2] Pre-heat voltage control
[3] Initial activation control
[4] Intensity control by an intensity sensor
[5] Fluorescent lamp life detection
[1] By an original size sensor
[2] By the ADF
Copyboard glass sensor (PS57)
Fluorescent lamp temperature sensor (H5): detects the temperature of the
fluorescent lamp heater
Table 3-101 Major Functions
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
CHAPTER 3 ORIGINAL EXPOSURE SYSTEM
Description
of small-size reading and large-size reading)
3-1