MITA SRDF-2
Service Manual

3C0 (1) Original feed timing

10 ms OFSOL A OFSOL R OFCL Fwd. rotation OFM Off Rev. rotation OFSW OSBSW OCM DFTSW 200 ms

150 ms 150 ms

298 P* 20 ms

*Burst of OFM pulses

Timing chart 2-1-1 Original feed (in simple-sided original mode) a The OFSOL A signal goes high for 10 ms and then turns off for 200 ms. It goes high again for 150 ms and the original feed solenoid (OFSOL) turns on, raising the original feed lift to convey the original forward. b 298 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 Simultaneously as the trailing edge of the original turns the original feed switch (OFSW) off, 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 150 ms and the original feed solenoid (OFSOL) turns off.

2-1-2