Ricoh PRIPORT VT 2000 Series Service Manual page 146

7.11 ELECTRICAL TIMING
2nd Drum Position Sensor
signal
No Ink
Ink Supply Sol.
No Ink Indication
T1: After all the ink has been consumed and the no ink signal is
HIGH,the ink supply solenoid turns on at the rising edge of the sec-
ond drum position sensor signal. The ink supply solenoid turns off
when the no ink signal goes HIGH.
T2: If after the ink supply solenoid turns on the drum turns a further 20 ro-
tations and the no ink signal remains LOW, the No Ink indicator (D +
) blinks.
When the "0" key and "Reset" key are pressed while the No Ink indi-
cator (D +
When the No Ink Signal goes HIGH during the 40 drum rotations, the
ink supply solenoid is de-energized.
) blinks, the drum turns 40 rotations.
T1
2-119
28 February '91
20 rotations
T2