Canon Vizcam 1000, Service Manual

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COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-101
3. OPERATION AND TIMING
5. Primary Charging Wire Cleaning
The CLC1000 is equipped with an automatic cleaning mechanism for the primary charging wire. The
mechanism turns on to clean the wire under the following conditions:
• The temperature of the fixing assembly is 165°C or less when the power switch is turned on.
• When the cleaning mechanism is activated in user mode.
• When 5000 copies have been made since the previous cleaning operation.
Figure 3-525
When the control signal from the DC controller is M24FW=1, M24RV=0, the primary charging wire
cleaning motor (M24) is rotated clockwise for about 13 sec; then, when M24FW=0, M24RV=1, the motor is
rotated counterclockwise for about 13 sec.
This sequence of operations is the same for all colors.
Counterclockwise
Clockwise
Primary charging wire
cleaning motor
(M24Bk,C,M,Y)
DC controller PCB
Cleaning motor CW rotation signal (M24FW) Cleaning motor CCW rotation signal (M24RV)
Cleaning pad
Primary charging wire