Table of Contents
Advertisement
[11] DESK UNIT ELECTRICAL SECTION
1. Outline
This circuit controls paper feed to the copier body, and is composed of sensors, switches, the circuit to interface with the copier, the circuit to drive
motors, clutches, and solenoids, the CPU, and its peripheral circuits.
2. Block diagram
Communication
PPC body
circuit
E1MOT
E1CLK
E2MOT
E2CLK
Transport motor
drive circuit
HMOT
Transport motor
speed control
pulse generation
circuit
RSEN1
RSEN2
SIZESW
RESTR
RESTF
CPU
Reset circuit
Lift motor
drive
circuit
Lift motor
rotation
sensor input
circuit
Transport motor
speed control
signal I/O circuit
Oscillation
circuit
12MHz
Latch
ROM
Resist sensor
input circuit
Size sensor
input circuit
Remaining
amount
sensor input
circuit
Paper tray 2
Paper tray 2
hoper motor
hopper motor
output circuit
drive circuit
Paper tray 2
clutch solenoid
drive circuit
Input port
Paper tray 2
expansion
cassette
IC
sensor/switch
input circuit
Parallel line
Open/close
switch input
circuit
Paper pass sensor
input circuit
Paper pass sensor
clock output circuit
Level sensor/
Limit sensor
input circuit
Clutch drive
circuit
11 – 1
LUM1
CPFC1
CPFS1
LUD1
PED2
UCSS1
UCSS2
UCSS3
UCSS4
PFNUD
F/LSW
SIDE
PPS0
PPS1
PPS2
EMP
LS1
LS2
LMS1
LMS2
P1CL
P2CL
BLC
RCL
Advertisement
Table of Contents
