
2A3/4
1-3-66
A
B
E
D
C
F
H
G
I
J
Fwd. rotation
Off
564 P*
1
2337 P*
2
+ 30 ms
100 ms
30 ms
115 P*
1
OFM
Rev. rotation
OFSW
SBFSSOL
SBPSOL
OSBSW
OCM
EFSSOL
DFTSW
288 P*
2
327 P*
1
Scanning request signal : On
Scanning
speed
Scanning speed
100 ms
30 ms
*
1
Burst of OFM pulses
*
2
Burst of OCM pulses
Timing chart 1-3-12
Reversing of the second face of the original and ejection
A
564 OFM pulses after the scanning of the first face (reverse face) of the original
completes and the DF timing switch (DFTSW) turns off, the switchback pressure
solenoid (SBPSOL) turns on, operationg the switchback pulley.
B
When the trailing edge of the original turns the original switchback switch (OSBSW) off,
the eject feedshift solenoid (EFSSOL) turns off and the eject feedshift guide returns to
the original position, switching the path of the original to the eject section. Simultaneously,
the switchback feedshift solenoid (SBFSSOL) turns off and the switchback feedshift
guide returns to the original position.
C
30 ms after the original switchback switch (OSBSW) turns off, the original conveying
motor (OCM) turns off.
D
115 OFM pulses after the original switchback switch (OSBSW) turns off, the original feed
motor (OFM) turns off.
E
100 ms after the original feed motor (OFM) turns off, the motor starts rotating 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
327 OFM pulses plus 100 ms after the original feed motor (OFM) turns off, the motor
starts rotating forward again and the original conveying motor (OCM) turns on
simultaneously, conveying the original onto the slit glass.
G
288 OFM pulses after the original is conveyed onto the slit glass and the DF timing switch
(DFTSW) turns on, the switchback pressure solenoid (SBPSOL) turns off.
H
30 ms after the switchback pressure solenoid (SBPSOL) turns off, the original feed motor
(OFM) turns off.
I
When the scanning request signal turns on, scanning of the second face (front face) of
the original starts.
J
2337 OCM pulses plus 30 ms after scanning of the second face (front face) of the original
completes and the DF timing switch (DFTSW) turns off, the original conveying motor
(OCM) turns off, completing the ejection of the original.
Summary of Contents for Ri 4230
Page 3: ...SERVICE MANUAL Ri 4230 5230 ...
Page 13: ...4230 5230 S M MCA THEORY AND CONSTRUCTION SECTION I I Theory and Construction Section ...
Page 14: ...1 1 5 2A3 4 CONTENTS 1 1 Specifications 1 1 1 Specifications 1 1 1 ...
Page 100: ...4230 5230 S M MCA ELECTRICAL SECTION II II Electrical Section ...
Page 119: ......
Page 138: ......
Page 159: ...4230 5230 S M MCA III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION ...
Page 448: ...2A3 4 3 6 3 25 Toner scatters at the leading edge of the image See page 3 6 17 ...