Ricoh C211 - Page 336

INDEX
No.
NAME FUNCTION
37
Front Door Safety Switch Checks whether the front door is closed correctly.
38
Drum Safety Switch Checks whether the drum unit is latched correctly.
41
Paper Table Safety Switch Checks whether the paper table is opened.
47
Test Switch Releases the cover safety functions.
48
Main Switch Turns the power on or off.
49
Master Eject Unit Safety
Switch (220V machines only)
Checks whether the master eject unit is closed
correctly .
55
Master Eject Unit Safety
Switch (115V machines only)
62
Master Cutter Switch Informs the CPU to cut the leading edge of the
master paper
65
Drum Rotation Switch Informs the CPU to rotate the main motor at 10 rpm.
Sensors
3
1st Paper Exit Sensor Detects misfeeds in the paper exit section.
5
2nd Paper Exit Sensor Detects misfeeds in the paper exit section.
9
Original Registration Sensor Detects misfeeds in the ADF, and synchronizes the
master feed with the original feed.
10
2nd Original Sensor Detects when the original is in the feed position.
13
1st Original Sensor Detects when the original is inserted into the ADF.
23
Lower Pressure Plate Sensor Informs the CPU when the pressure plate is at the
lower limit position.
24
Full Master Box Sensor Informs the CPU when the master eject box is full of
used masters.
25
Upper Pressure Plate Sensor Informs the CPU when the pressure plate is at the
upper limit position.
30
Master Eject Sensor Detects the master eject jams.
34
Master Buckle Sensor Detects the master buckling process during master
making.
35
Master End Sensor Informs the CPU when master roll is empty.
40
Paper Table Height Sensor Detects when the paper table has reached the
paper feed position.
42
Paper Table Lower Limit
Sensor
Detects when the paper table has reached the
lowest position.
43
Printing Pressure Sensor Informs the CPU when printing pressure is applied.
44
Paper End Sensor Informs the CPU when the paper table runs out of
paper.
50
Drum Rotation Sensor Supplies the timing pulses to the main board.
53
2nd Drum Position Sensor Checks the home position of the drum.
57
1st Drum Position Sensor Checks the home position of the drum.
Printer Circuit Board
16
CCD PCB Converts the reflected light into an analog signal.
17
A/D Conversion PCB Converts analog signals into digital signals.
39
Main Control PCB Controls all machine functions both directly and
indirectly through the other PC boards.
54
Ink Detection PCB Controls the ink supply within the drum
63
Power Supply PCB Rectifies 100 V ac input and supplies dc voltage.
C224 1-8 SM