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Chapter 2
2-37
2.4.4
Controlling the Pickup Motor (M1)
0002-9497
The following is a diagram of the circuit used to control the pickup motor (M1). The pickup
motor is a 4-phase stepping motor, and the circuit serves the following functions:
- turning on/off the motor
- controlling the rotation direction of the motor
- controlling the rotation speed of the motor
F-2-29
IC9 on the ADF driver PCB receives print data (command) on printing mode from the host
machine (magnification, operation mode, timing); in response, it generates drive pulses to
drive the pickup motor.
The pickup motor (M1) is a stepping motor, and its direction and speed of rotation are
varied by changing the order and the frequency of drive pulses (A, A*, B, B*).
+24V
A
A*
B
B*
M1
J11
MOT-
B*
MOT-
B
3
4
1
5
6
2
IC9
CPU
MOT-
A*
MOT-
A
MOT-
CU
T
MOT-
REF1
MOT-
REF2
+5
V
REF
ADF driver PCB
IC8
Motor
Driver
Summary of Contents for DADF-M1
Page 9: ...Chapter 1 Specifications ...
Page 17: ...Chapter 2 Functions ...
Page 66: ...Chapter 2 2 47 F 2 41 PI8 PI9 PI6 PI2 PI3 PI4 PI5 PI1 PI7 ...
Page 70: ...Chapter 3 Parts Replacement Procedure ...
Page 105: ...Chapter 4 Maintenance ...
Page 114: ...Chapter 4 4 7 F 4 4 F 4 5 23 24 25 21 26 22 29 27 28 1 31 ...
Page 156: ...Chapter 4 4 49 F 4 53 FM1 SL2 SL1 M4 M1 CL1 PCB1 M2 M3 VR1 ...
Page 158: ...Chapter 4 4 51 4 5 3 Original Placement led PCB 0003 5540 F 4 55 J201 1 3 ...
Page 159: ...Chapter 5 Error Code ...
Page 165: ...Appendix ...
Page 171: ......