Electrical Component Description - Ricoh G031 Service Manual

ELECTRICAL COMPONENT DESCRIPTION

1.4 ELECTRICAL COMPONENT DESCRIPTION
Symbol
Motor
M1 Paper Feed Motor
Sensors
PFU Paper Feed Sensor
S1
PFU Paper End Sensor
S2
PFU Paper Near-end Sensor Informs the CPU of the estimated
S3, S4
PFU Cassette Sensor
S5
(G032 only)
Switch
PFU Paper Size Switch
SW1
Clutch
MC1 PFU Paper Feed Clutch
PCB
PFU Paper Feed Unit Board Interfaces the sensor signals with
PCB1
G031/G032
Name
Drives all the rollers
Detects the paper from the paper
tray and also detects misfeeds.
Informs the CPU when there is no
paper in the tray
remaining paper amount (there are
4 signal patterns)
Detects whether the main cassette
is installed
Detects the paper size selected by
the dial
Starts paper feed
the printer
Function
9-4
Index No.
2
5
6
7, 8
9
4
3
1
SM