Psu - Ricoh Aficio 480W Dolphin-C2 Service Manual

28 April 2005

6.12.5 PSU

The PSU (Power Supply Unit) supplies dc for
every electrical component in the machine, and
controls ac input to the fusing lamps and anti-
condensation heaters.
Fuses
Name Connector
FU002 CN101, 102,
CN103, 104
FU101 CN100
FU301 CN126-1
FU302 CN126-2
FU303 CN126-3
FU304 CN126-4
FU305
CN126-5
CN126-6
FU306 CN129-1
!
CAUTION: DOUBLE POLE/NEUTRAL FUSING
The machine power cord must be disconnected from the power source
before replacement of FU002.
Rating
120 V 220 - 240 V
5 A 125 V 5 A 250 V
8 A 125 V 5 A 250 V
6.3 A 125 V 6.3 A 250 V
6.3 A 125 V 6.3 A 250 V
6.3 A 125 V 6.3 A 250 V
6.3 A 125 V 6.3 A 250 V
6.3 A 125 V 6.3 A 250 V
6.3 A 125 V 6.3 A 250 V
6-63
BOARDS AND BREAKER SWITCH
F101
F002
V
AC Fusing lamps, anti-
condensation heaters. See
Caution below.
AC AC power
24 V (1) IOB and 24 V system via
safety safety switch: development
motor, CGB and TS power
packs
24 V (2) IOB and 24 V system via
safety safety switch: drum motor,
fusing motor, registration
motor, FPDB, fusing
pressure motor
24 V(3) IOB, pick-off pawl solenoid,
quenching lamp, toner supply
clutch, registration clutch,
total counter, key counter
24 V(4) IOB, SDB, original feed
motor, original feed clutch,
original junction gate
solenoid.
IOB, RFDB, 24 V for the
24 V(5) roller feeder and cassette
trays
IPU, operation panel
24 V(6)
24 V(7) CIS
B188D964.WMFF
Load