2A3/4
2-3-15
2-3-9 Deck main PCB (42 ppm: optional/52 ppm: standard)
DECK TXD
DECK RXD
PFSW4
Engine
PCB
Main
PCB
24 V DC
5 V DC
PGND
SGND
CM
PDM1
PDMSENS1
PDMSENS2
PDM1
drive circuit
PDM2
Deck paper
conveying
motor
drive
circuit
Communication
circuit
Latch
CPU
IC7
PDMPCB
Clutch
drive circuit
LED drive
circuit
Deck
open/close
detection
ROM
PPSENS1
PPSENS2
PPSENS3
PESENS
DLSW1
UPSW1
DLSW2
SCSW
DOSSW
Oscillator
circuit
PFCL1
PFCL2
CCL
I/FPCB
+24 V DC
+5 V DC
SGND
PDM2
drive circuit
Reset circuit
PLDSENS2
PLDSENS1
Figure 2-3-11 Deck main PCB block diagram
The deck main PCB (PDMPCB) consists of the CPU IC7, which serially communicates
with the main PCB (MPCB) via the engine PCB (EPCB); the deck paper conveying
motor drive circuit; the paper deck motor drive circuits; the clutch drive circuit; the reset
circuit; and the LED drive circuit. It controls the entire large paper deck.
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 ...