91
m
Drum Section
chap.2
¡
Standby position during printing
Cam is in the bottom position, and the ink roller is
raised up by a spring. The ink roller up/down
sensor is in the state of photopassing(OPEN),
signalling that the ink roller has reached the upper
limit position. In this position, the ink roller is not
touching the drum inner surface.
¡
Ink roller descent
The motor turns, and cam pushes the ink roller
downward. When edge plate rotates, the ink roller
up/down sensor is in the state of photointerrupting
(CLOSED), the sensor signals that the roller has
reached the bottom limit position, and the motor
stops. In this position, the ink roller is pressed
against the drum inner surface, and ink will be
supplied even if the machine performs printing
without paper.
¡
Ink roller ascent (to standby position)
The motor turns, and when cam reaches the bottom
position, the spring raises the ink roller up. When
the ink roller up/down sensor is in the state of
photopassing, the sensor signals that the roller is in
the raised position, and the motor stops.
Operation
Ink roller up / down motor
Ink roller up / down sensor
Cam
Cam
Spring
R8S02079
R8S02080
R8S02081
R8S02082
Spring
Edge plate
Ink roller
Ink roller up /
down sensor
Drum inner
surface
Edge plate
Cam
Ink roller up / down motor
Ink roller
Photopassing
Drum inner
surface
Photopassing
Photointerrupting
Summary of Contents for DP-S Series
Page 1: ......
Page 9: ......
Page 11: ......
Page 16: ...x Dimensions chap 1 15 R8S01001 xDimensions 622 1360 510 228 1080 710 980 688 370 mm...
Page 22: ...v Part Names and Their Functions chap 1 21 44000A1e 2A 2B 2C R8S01006a 2Detailed drawing...
Page 33: ...32 z Scanner Section chap 2 Circuit R8S02E03e...
Page 87: ...86 m Drum Section chap 2 2 Circuit R8S02E30...
Page 171: ...170 MEMO...
Page 193: ...192 MEMO...
Page 195: ...194 z Help mode List chap 7 z HELP Mode List...
Page 243: ...242 c HELP Mode Function and Operation Procedures chap 7...
Page 270: ...269 c HELP Mode Function and Operation Procedures chap 7...
Page 281: ...280 MEMO...
Page 293: ...292 z Electrical Parts Layout and Their Functions chap 9 MEMO...
Page 295: ...309 294 x Overall Wiring Layout chap 9 Overall Wiring Layout 1 Main PCB 2 2...
Page 297: ...311 296 x Overall Wiring Layout chap 9 Overall Wiring Layout 2 Drive PCB 2 2...