Canon NP6085 Service Manual page 175

K. Fixing/Delivery Assembly
1. Outline
The upper and lower rollers of the fixing
assembly and the delivery roller of the delivery
assembly are driven by the fixing motor (M17)
through a clutch. (See Figure 3-433.)
If a jam occurs in the fixing/delivery assembly,
the fixing drive stop solenoid (SL17) is turned ON
to stop the fixing roller immediately.
The upper roller is equipped with two built-in
heaters. (See Figure 3-432.)
The fixing temperature of the upper roller is
detected by a thermistor (TH1), and the DC con-
troller PCB exerts control so that it is maintained
at a specific level.
The surface temperature of the roller is con-
trolled in either of the following two modes
depending on the length of time from power-on
and the ambient temperature:
1 For 45 min from power-on,
Control temperature during standby:
Control temperature during copying:
Control temperature during energy saver mode:
2 For 45 min from power-on or when the ambi-
ent temperature is 28°C or more regardless of
the length of time from power-on,
Control temperature during standby:
Control temperature during copying:
Control temperature during energy saver mode*:
*May be varied in additional function mode.
Note:
Keep in mind that, due to avoid not to be
separated the transparencies, when using
the non recommended transparencies,
'1' is set for 'OHP_TEMP' in service mode
( ), and the temperature is set 20°C
5
lower than indicated above.
COPYRIGHT © 1996 CANON INC.
ing roller is taken up by moving up and down the
cleaning belt take-up arm operated by the clean-
ing belt drive solenoid (SL1). The cleaning belt
drive solenoid is turned ON once when the deliv-
ery sensor (Q15) detects the leading edge of copy
paper.
two notches to allow detection of the length of the
belt by two photointerrupters (Q8, Q9) and a
detecting lever.
Reference:
195°C
200°C
190°C
190°C
195°C
185°C
CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATIONS AND TIMING
The cleaning belt used to clean the upper fix-
The edge of the cleaning belt is provided with
1.Heater
100V model
Main heater. . . . 930 W
Sub heater . . . . 550 W
208/220/240V model
Main heater. . . . 1600 W
2.Thermal switch. . . 240 ± 10°C
3-117