Control System; Control Circuits - Canon imageFORMULA DR-M140 Service Manual

IV. CONTROL SYSTEM

1. Control Circuits

The machine is controlled by the control
Control PCB
Computer
Main
motor
Feed
motor
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Scanner
controller
(IC6)
Motor driver
(IC17)
Motor driver
(IC16)
Document
sensor (LED)
Flapper
sensor
Post-
eject
registration
sensor
sensor
Figure 2-401
CANON DR-M140 FIRST EDITION
CHAPTER 2 FUNCTIONS & OPERATION
PCB. The block diagram and the function
list of major ICs are shown below.
Serial Flash
EEPROM memory
(IC8) (IC11)
Door
sensor
Sensor control
microcontroller
(IC14)
Pre- Ultrasonic
registration sensor
sensor (receiver)
CIS unit
(front)
CIS unit
(back)
Operation PCB
Skew sensor
(R) PCB
Ultrasonic
driver PCB
Document
sensor PCB
2-13