Circuit; Electrical Timing - Ricoh C226 Service Manual

6.4 CIRCUIT

OUTPUTS
Signal Name I/O
Printing Pressure
Sensor
I
Printing Pressure
Solenoid
O

6.5 ELECTRICAL TIMING

2nd Drum Position Sensor
Paper Feed Solenoid
Pressure Detecting Sensor
Print Counter
T1: When the printing pressure is applied and the printing pressure
sensor is not interrupted, the print counter signal is applied for 100
milliseconds to increase the print counter and decrease the counter
on the operation panel.
T2: When the printing pressure sensor is not interrupted and the copy
counter on the operation panel indicates "0", the paper feed solenoid
and the printing pressure solenoid will turn off to stop the paper feed
cycle and to release the printing pressure.
SM
Main Control PCB
CN No. Level
CN103- A8
CN111-B4
(CN111-B5
2-53
PRINTING SECTION
Description
When the pressure is applied the voltage at
CN103-A8 0 V.
When the printing pressure solenoid turn
on, the voltage at CN111-B4 and CN111-B5
0 V.
C226