Electrical Timing - Ricoh PRIPORT VT 2000 Series Service Manual

5.12 ELECTRICAL TIMING

Paper Table Height SN
Paper Table Lower
Limit SN
Paper End SN
(sw)
Paper Table Motor Up
Main Motor Reversing
1st Drum Position SN
2nd Drum Position SN
/
Paper Feed Sol.
Printing Pressure Sol..
Main Motor Fowarding
Right Cutter SW
( ): VT2100/VT2130/VT2150
T1: When the paper end sensor is not actuated and the Master Making
key is pressed, the paper table up signal turns on RA303 and the pa-
per table motor rotates to raise the paper table. The paper table mo-
tor turns off when the paper table height sensor turns on. At the
same time main motor starts rotating in the reverse direction.
T2: After the master eject and master clamping process are over and the
cutter motor is driven to the right position (right cutter switch ON) the
paper feed solenoid and the printing pressure solenoid turn on. It
turns off when the second drum position sensor turns on.
T3: When the Print Start key is pressed, the main motor starts rotating.
When the second drum position sensor turns on, the paper feed sole-
noid and the printing pressure solenoid turn on again to start printing.
The paper feed solenoid and the printing pressure solenoid turn off
when the copy counter indicates "0".
Master Eject
Master Clamp
Master
Making
Main
SW Set Key
ON Paper "ON"
T1
2-101
Trial Print
T2
28 February '91
Print
Start
Key Counter
"ON" "0"
T3