Canon NP-2020, Service Manual

Page: 78 / 207

O P E R A T I O N S T I M I N G
1. Controlling the Transfer 2. Cleaning
3 - 3 8
M o t o r P C S
Corona Cleaning
Mechanism
1.
The copier has cleaning
nism for the transfer corona cleaning
when the power switch turned or when
the fixing assembly or below.
The wire cleaner moved by the cleaner motor
(M4) and forth once along the wire (about 20
When the wire cleaner mount moving by
M4 actuates the microswitch located at the
rear of thetransfer rail, M4 rotates reverse to move
the wire cleaner reverse.
The wire cleaner stops when the wire cleaner
mount actuates the microswitch (SW6) located
front of the transfer rail (home position). If SW6 not
actuated, the COPY START key
the control panel
remains red for 90 the wait period
If the power turned OFF the middle of
cleaning operation, the wire cleaner mount stops
where If the transfercorona assembly has
dertached this condition,
the
copier holding the wire cleaner at the rear by
hand.
m o t o r ( M
c o r o n a
re c l e a n e r h o m e
s w i t c h ( S W 6 )
Figure 3-37
D C
C A N O N
C A N O N J A N , I N J A P A N