Ricoh C249, Service Manual

Page: 432 / 486

ELECTRICAL COMPONENT DESCRIPTION
C600 4 SM
1.4 ELECTRICAL COMPONENT DESCRIPTION
Symbol Name Function Index No.
Motors
M1 DF Transport Drives the transport and exit rollers 9
Sensors
S1
DF Open Informs the CPU of the DF when the DF is
opened and closed (for platen mode).
6
S2
Registration Detects the leading edge of the original to
determine when to turn off the DF transport
motor and expose the original, and checks
for original misfeeds.
13
S3
Feed Cover Open
Sensor Detects whether the feed-in cover is open or
not.
2
S4 Original Width Detects the original width. 3
S5 Original Length 1 Detects the original length. 8
S6 Original Length 2 Detects the original length. 7
S7 Original Set Detects the original is on the feed table. 11
S8
Original Trailing
Edge Detects the trailing edge of the last original to
stop copy paper feed and to turn off the
transport motor, and checks for original
misfeeds.
12
Solenoids
SOL1
DF Pick-up Controls the up-down movement of the
original table.
4
SOL2 Stamp Energizes the stamp to mark the original. 10
Clutches
MC1
DF Feed Transfers transport motor drive to the pick-up
roller and feed belt.
1
PCBs
PCB1
DF Drive Interfaces the sensor signals with the copier,
and transfers the magnetic clutch, solenoid,
and motor drive signals from the copier.
5