Original Switchback/Conveying Timing - Kyocera Mita KM-4530 Service Manual

2BC/D

(3-1) Original switchback/conveying timing

Fwd. rotation
OFM
Rev. rotation
SBFSSOL
SBPSOL A
SBPSOL R
OSBSW
EFSSOL
DFTSW
a During primary original feed, when the original feed switch (OFSW) turns on, the switchback feedshift solenoid
(SBFSSOL) also turns on, changing the position of the switchback feedshift guide. This switches the path of the
original to the original switchback section.
b 298 OFM pulses plus 20 ms after the original feed switch (OFSW) turns on, the rotation of the original feed motor
(OFM) switches to the reverse direction and the original is conveyed to the switchback section by the rotation of the
switchback roller.
c Simultaneously as the original feed switch (OFSW) turns off, the switchback pressure solenoid (SBPSOL) turns on to
operate the switchback pulley.
d When the trailing edge of the original turns the original switchback switch (OSBSW) off, the switchback feedshift
solenoid (SBFSSOL) turns off, the switchback feedshift guide returns to the original position.
e 135 OFM pulses after the original switchback switch (OSBSW) turns off, the original feed motor (OFM) turns off. 100
ms later, the original feed motor (OFM) rotates forward, switching the rotational direction of the switchback roller. The
original in the original switchback section is then reversed and conveyed to the original conveying section.
f Simultaneously as the original feed motor (OFM) starts rotating forward, the original conveying motor (OCM) turns on
to convey the original onto the slit glass. The eject feedshift solenoid (EFSSOL) simultaneously turns on, changing
the position of the eject feedshift guide. This switches the path of the original to the original switchback section.
g When the original is conveyed onto the slit glass, the DF timing switch (DFTSW) turns on. 78 OCM pulses later, the
switchback pressure solenoid (SBPSOL).
h 30 ms after the switchback pressure solenoid (SBPSOL) turns off, the original feed motor (OFM) turns off.
2-1-42
Off
*1
298 P
20 ms
OFSW
OCM
Timing chart 2-1-13 Reversing the first face of the original
Scanning speed
100 ms
*1
135 P
*2
78 P
Scanning speed
*1 Burst of OFM pulses
*2 Burst of OCM pulses
30 ms