Ricoh FT4430 Service Manual page 94

T1 ----- If the cleaning solenoid is on and the Start key
main motor and the registration clutch turn on.
T2 ----- The selected paper feed station's paper feed
second after the Start key is pressed. At
registration clutch turns off.
If the 3rd paper feed station is selected, the relay clutch turns on at
the same time as the 3rd paper feed clutch.
T3 ----- If the 2nd paper feed station is selected, the 2nd paper feed clutch
and the LCT clutch turn off 0.09 second after the registration sensor
turns on.
T4 ----- If the 1st paper feed station is selected, the 1st paper feed clutch
turns off 0.12 second after the registration clutch turns on.
T5 ----- The registration start signal appears at the 1000th pulse. This
compensates for differences in the length of the paper paths for each
feed station.
Registration
1.
After the leading edge of the copy paper reaches the registration rollers, the
optics CPU sends the registration start signal (1,000th pulse) to the main
CPU. At this time, the main CPU energizes the registration clutch to feed the
copy paper for image transfer.
2-67
16 April '88
is
pressed, then the
on
clutch turns 0.63
the same time, the