As a means of protecting the power supply
PCB, the input side of the AC power supply is
equipped with a fuse and each switching regula-
tor IC is equipped with an overcurrent protection
circuit.
When an overcurrent lowers because of a
short circuit in the power line, the protection circuit
will turn ON to turn OFF the output of the power
supply unit.
If such happens, disconnect the copier’s power
plug, and remove the cause of activation; then,
turn ON the power switch.
The protection circuit may be reset by keeping
the AC power of the power supply unit OFF for
about 30 sec and then turning ON the AC power
supply.
Table 3-701
If an overcurrent flows to the output of the
power supply unit, the protection circuit will
normally turn ON before the AC input fuse
blows.
Turning ON and OFF the AC power supply
of the power unit repeatedly while a short
circuit exists in the power supply unit can
blow the fuse in the AC input.
Replace the lithium battery only with the
one listed in the Parts Catalog.
Use of another battery may present a risk
of fire or explosion. The battery may pre-
sent a fire or chemical burn hazard if mis-
treated. Do not recharge, disassemble or
dispose of it in fire. Keep the battery out of
children and discard any used battery
promptly.
3. OPERATIONS AND TIMING
COPYRIGHT © 1996 CANON INC.
CANON NP6085 REV.0 JULY 1996 PRINTED IN JAPAN (IMPRIME AU JAPON)
3-155
Signal
REMOTE
AC 0 ON
AC 1 D
MSW ON
PW OFF
Description
24VU output control signal
Relay drive signal in power
supply circuit (switches from
line b to line a)
b line detection signal
Main switch ON/OFF signal
Power off signal for auto power-
off and error detection
Caution:
Caution:
Содержание NP6085
Страница 8: ......
Страница 44: ......
Страница 46: ......
Страница 58: ......
Страница 100: ......
Страница 102: ......
Страница 425: ......
Страница 481: ......
Страница 483: ......
Страница 493: ......
Страница 498: ...COPYRIGHT 1996 CANON INC CANON NP6085 REV 0 JULY 1996 PRINTED IN JAPAN IMPRIME AU JAPON A 5 ...
Страница 502: ...PRINTED IN JAPAN IMPRIME AU JAPON 0697AB0 6 3 This publication is printed on 70 reprocessed paper ...