1AF
2-3-5
(2) Toner feed motor drive circuit
CPU
(IC11)
INH1
IN1
IN2
7
2
3
9
6
4
MONI
OUT1
OUT2
VCC
1
VCC
2
S
1
8
CN11-5
CN11-6
TFM
IC14
+24 V
0 V
–24 V
Pin 2
(IN1)
Pin 3
(IN2)
_RESET
74
73
P G
IC14 input voltage waveform
Output voltage waveform
across CN11-5 and CN11-6
Figure 2-3-4
Toner feed motor drive circuit
The toner feed motor drive circuit generates a pseudo-AC supply to run the toner feed motor
(TFM), an AC motor.
Pulse signals output from the CPU (IC11) to pins 2 and 3 of driver IC14 alternate the
polarities of the 24 V DC in the transistor H-bridge circuit incorporated in driver IC14. This
voltage is output across CN11-5 and CN11-6 as a pseudo-AC supply.
Summary of Contents for DC-1560
Page 1: ...DC 1560 2050 KME S M SERVICE MANUAL Published in Oct 99 841AF110 DC 1560 2050 DC 1560 2050...
Page 3: ...SERVICE MANUAL DC 1560 2050...
Page 13: ...1 1 7 1AF CONTENTS 1 2 Handling Precautions 1 2 1 Drum 1 2 1 1 2 2 Developer and toner 1 2 1...
Page 15: ...1 1 11 1AF CONTENTS 2 1 Electrical Parts Layout 2 1 1 Electrical parts layout 2 1 1...
Page 27: ...DC 1560 2050 KME S M I Theory and Construction Section THEORY AND CONSTRUCTION SECTION I...
Page 33: ...1 1 7 1AF CONTENTS 1 2 Handling Precautions 1 2 1 Drum 1 2 1 1 2 2 Developer and toner 1 2 1...
Page 78: ...DC 1560 2050 KME S M ELECTRICAL SECTION II II Electrical Section...
Page 79: ...1 1 11 1AF CONTENTS 2 1 Electrical Parts Layout 2 1 1 Electrical parts layout 2 1 1...
Page 98: ...DC 1560 2050 KME S M III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION...
Page 169: ...1AF 3 3 13 End Yes No Press the stop clear key Exit simulation mode Adjust for another mode...
Page 201: ...1AF 3 3 45 End Yes Press the stop clear key Exit simulation mode No Adjust for another mode...
