Upper Unit; Sensor Pcbs; Ultrasonic Drive Pcb - Canon imageFORMULA DR-M140 Service Manual

CHAPTER 3 DISASSEMBLY & REASSEMBLY
III. UPPER UNIT

1. Sensor PCBs

1) Remove the document eject tray.
(Page 3-3)
2) Remove the open/close lever
spring. Disconnect the connector
unhook the 3 pairs of fitting parts
then remove the document sensor PCB
. Then, disconnect the connector
4
unhook the 2 pairs of fitting parts
remove the skew sensor (R) PCB
Figure 3-301
3-10

2. Ultrasonic Drive PCB

1) Remove the sensor PCBs.
(Page 3-10)
and 2) Remove the connector
1
and holder
2
, the 4 pairs of fitting parts
3
the upper light guide
,
5
, and
6
.
7
3) Remove the ultrasonic drive PCB
COPYRIGHT © CANON ELECTRONICS INC. 2011
and the cable
1
(reusable type), then unhook
2
3
.
4
Figure 3-302
Figure 3-303
CANON DR-M140 FIRST EDITION
and remove
.
1