Canon NP2120 Service Manual page 87

2. Oil Application Roller
The upper fixing roller is provided with an oil
application roller for cleaning and application of oil.
Normally, the oil application roller remains away
from the fixing roller, and it comes into contact with
the upper fixing roller only when copy paper passes
through.
SSR ON
( N P 2 1 2 0 only) 1
1
446°F)
1
Figure 3-43
CANON NPZl20/2020 RN.1 OEC. 1992 PAINTEO IN JAPAN IIMPRIME AO
O P E R A T I O N S A N D TIMING B
The mechanism is driven by the oil application
rollersolenoid (SL3); SL3 goes ON as soon as copy
paper reaches the separation sensor (Q5), thereby
bringing the oil application roller intocontact with the
upper fixing roller.
SL3 remains ON for about 4 seconds as timed by
the microprocessor; however, it goes OFF as soon
asthemainmotorstops ifthecopypaperisdelivered
withjn 4 seconds.
DC controller PCB
TH
- 8
Error detectrc
3-45