Kyocera KM-4230 Service Manual page 82

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Original feed timing

Fwd. rotation

Rev. rotation

Timing chart 1-3-10 Original feed (in double-sided original mode)

A The OFSOL A signal turns on for 200 ms and then the original feed solenoid (OFSOL)

turns on, lowering the DF forwarding pulleys and releasing the original stopper to convey

the original forward. The original feed clutch (OFCL) simultaneously turns on, rotating

the DF original feed pulley to start primary original feed. The original feed motor (OFM)

rotates forward during this operation.

B 556 OFM pulses after the leading edge of the original turns the original feed switch

(OFSW) on, the original feed clutch (OFCL) and original feed motor (OFM) turn off. 20

ms later, the rotation of the motor switches to the reverse direction and secondary

original feed is performed by rotation of the DF registration roller.

C 288 OFM pulses plus 30 ms after the leading edge of the original turns the DF timing

switch (DFTSW) on, the original feed motor (OFM) turns off.

D After ejection of the original, as the original conveying motor (OCM) turns off, the OFSOL

R signal turns on for 200 ms and the original feed solenoid (OFSOL) turns off.

Burst of OFM pulses

Burst of OCM pulses

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