Kyocera KM-4230 Service Manual page 77

2A3/4
Duplex copying operation timing
FSSOL
SBFSSOL
FSSW
DUPFWDSOL
DUPPTSOL
Fwd. rotation
SRM
Rev. rotation
SRHPSW
RCL
ESW
STKSW
Timing chart 1-3-8 Feedshift and side registration
A 74 ms after the image ready signal turns on during copying onto the first face (back), the
registration clutch (RCL) turns on to start secondary paper feed.
B 1160 ms after the registration clutch (RCL) turns on, the feedshift solenoid (FSSOL)
turns on, operating the feedshift guide to switch the paper path to the duplex unit.
C When the leading edge of the paper turns the eject switch (ESW) on, the switchback
feedshift solenoid (SBFSSOL) turns on, operating the switchback guide to switch the
paper path to the duplex unit conveying section.
D 60 ms after copying onto the first face (back) is competed and the trailing edge of the
paper turns the feedshift switch (FSSW) off, the side registration motor (SRM) rotates
forward for 12 pulses for side registration. At the same time, the duplex paper tapping
solenoid (DUPPTSOL) turns on, and the paper tapping guide lowers to hold down the
trailing edge (leading edge during refeed) of the paper that was conveyed to the duplex
section.
E 30 ms after the duplex paper tapping solenoid (DUPPTSOL) turns on, the duplex
forwarding solenoid (DUPFWDSOL) turns on, operating the duplex forwarding pulley to
forward the paper until it is caught by the switchback roller.
F 80 ms after the stock switch (STKSW) turns off, the duplex tapping solenoid (DUPPTSOL)
and duplex forwarding solenoid (DUPFWDSOL) turn off.
1-3-54
Image ready
1160 ms
74 ms
A
Copy paper: A4/11" × 8
60 ms
B C DE F
1
/ ", 100% magnification
2
30 ms
80 ms
12 P