Fixing System; Fixing Assembly; Fixing Roller Cleaner Felt - Canon LBP-CX Series Service Manual

VI. FIXING SYSTEM
A. Fixing Assembly
1. Construction
Delivery
roller
Delivery
guide
Separation
guide
Figure 4-72
Fixing roller cleaner felt
Thermistor
Drive gear
Paper guide
To prevent toner on the print from being transfer-
red (offset) to the upper roller when the print
paper passes between the upper and lower rollers,
and to prevent the print from wrapping around the
upper roller, silicone oil is applied by a felt to the
roller while the roller is being cleaned.
2. Operation
Drive from the main motor is transmitted to the
upper roller
via
the drive gear. The lower roller is
driven by the upper roller.
Pressure release
mechanism
,:,-
...
',,
,~,
'
...
',
~-·
' , ', Released
I ',',,
'
'
'':', Upper cover of
',,' - - fixing assembly
Pressure applied ' ,
',;', Pivot A
-~~~~~~~~~.;......:..,
-===:..-~~~~~~r-~~'
Upper roller
Pivot
B
Figure4-73
Pin
Pressure
arm
Pin
Fixing assembly
side plate
Pressure
arm
t
Figure4-74
Spring
Lower roller
The spring in Fig. 4-74 provides constant upward
push against the pressure arm. When the upper
panel of the fixing assembly is closed, the pin
shown in Figs. 4-73, -74
will
move upward, lifting
the pressure arm and pressing the lower roller
against the upper roller.
Note:
Pressure between the fixing rollers cannot be ad-
justed.
3. Removal
(I)
Open the printer (raise the upper half). Raise the
top part of the fixing assembly.
(2) Remove the cover/latch unit (2).
Figure 4-75
(3) Remove the harness cover and pull out the
connector (J2).
COPYRIGHT
©
BY CAllON INC. CANON LBP.CX SERIES REY.2 JULY 1985 PRINTm IN JAPAN (IMPRIME AU JAPONJ
4-21