Canon IR1600 - Controlling the Reader Motor; Moving the Carriage in Reverse after an Image Scan

CHAPTER 3 IMAGE READING/PROCESSING SYSTEM
COPYRIGHT © 2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002
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2.2 Controlling the Reader Motor
The following shows the circuit used to control the reader motor, and the circuit has the
following functions:
(1) Controlling the direction of rotation of the reader motor
(2) Controlling the speed of rotation of the reader motor
(3) Turning on/off the reader motor
F03-202-01
2.2.1 Moving the Carriage in Reverse After an Image Scan
The speed at which the carriage is moved in reverse (after an image scan) is constant,
i.e., 50% of the speed used to move it in Reduce mode.
6
4
7
5
3
1
5V 5V
M103
OUTA
OUTAX
COM
OUTB
OUTBX
COM
Image processor PCB
Original detection/reader motor drive PCB
Motor driver
Reader motor
Logic circuit