Electrical Component Description - Ricoh B205 Service Manual

ELECTRICAL COMPONENT DESCRIPTION

1.4 ELECTRICAL COMPONENT DESCRIPTION
Symbol Name
Motors
M1 Tray
M2 Upper Lift
M3 Lower Lift
Sensors
Upper Lift
S1
Lower Lift
S2
Upper Paper End Informs the copier/printer when the upper tray
S3
Lower Paper End Informs the copier/printer when the lower tray
S4
S5 Vertical Transport Detects misfeeds.
Upper Paper
S6
Height 1
Upper Paper
S7
Height 2
Lower Paper
S8
Height 1
Lower Paper
S9
Height 2
Switches
SW1 Tray Cover
SW2 Upper Paper Size Determines what paper size is in the upper tray.
SW3 Lower Paper Size Determines what paper size is in the lower tray.
Magnetic Clutches
Upper Paper
MC1
Feed
Lower Paper
MC2
Feed
MC3 Relay
PCBs
Tray Main
PCB1
Others
Optional Tray
H1
Heater
B390
Function
Drives all rollers.
Lifts the upper tray bottom plate.
Lifts the lower tray bottom plate.
Detects when the paper in the upper tray is at
the correct feed height.
Detects when the paper in the lower tray is at
the correct feed height.
runs out of paper.
runs out of paper.
Detects the amount of paper in the upper tray.
Detects the amount of paper in the upper tray.
Detects the amount of paper in the lower tray.
Detects the amount of paper in the lower tray.
Detects when the tray cover is opened.
Starts paper feed from the upper tray.
Starts paper feed from the lower tray.
Drives the relay rollers.
Controls the paper tray unit and communicates
with the copier/printer.
Removes humidity from the paper in the trays.
4
Index No.
20
3
18
2
19
13
14
12
5
4
11
10
8
16
15
6
9
7
1
17
SM