II-6
2.3.3
Paper Feed and Carriage Motor Drive Circuit
A PM-type stepper motor is used to feed paper and is driven at a constant voltage. A DC
motor is used for the carriage. It uses the feedback signal (EINT-P) from the linear
encoder and its speed is controlled via the gate array by the CPU using the PWM control
method. The paper feed driving circuit is turned on and off by the M5VCNT signal from
the CPU.
#4
CPU
STPM0
STPM1
STPM0N
STPM1N
STPPWM0
STPPWM1
M5VCNT
12V
P1
#1
LF Driver
M54676
To LF Motor
G/A
#7
Fig. 2.6
#4
#7
#2
#3
P6
P4
CPU
EINT-P
ENC 2-P
ENC 1-P
DCM0
DCM1
DCM0N
DCM1N
To
Encoder sensor on
the carriage PCB
To CR Motor
CR Drive motor
G/A
Fig. 2.7
Содержание MP-21C
Страница 1: ......
Страница 2: ...SERVICE MANUAL MODEL MP 21C 21CDX ...
Страница 7: ...Chapter I FEATURES AND SPECIFICATIONS ...
Страница 11: ...I 3 3 CONFIGURATION 3 1 Mechanics Overview Fig 1 1 MP 21C MP 21CDX ...
Страница 29: ...Chapter II THEORY OF OPERATION ...
Страница 52: ...Chapter III DISASSEMBLY AND REASSEMBLY ...
Страница 95: ...III 42 Pick up roller ASSY EM2 EM2 Fig 3 64 ...
Страница 100: ...Chapter IV TROUBLESHOOTING ...
Страница 119: ...IV 18 LED INDICATING THE ERROR Example ROM error Power LED Alarm LED Ink BC LED Ink MY LED A lapse of time ON OFF ...
Страница 120: ...Appendix ...
Страница 122: ...Appendix 1 Head PCB Circuit Diagram CODE UJ7041000 MPHEAD SCH01 NAME A 1 ...
Страница 123: ...Appendix 2 Main PCB Circuit Diagram 1 3 CODE UJ7040000 MPMAIN SCH01P1 NAME A 2 ...
Страница 124: ...Appendix 3 Main PCB Circuit Diagram 2 3 CODE UJ7067000 MPMAIN SCH01P2 NAME A 3 ...
Страница 125: ...Appendix 4 Main PCB Circuit Diagram 3 3 CODE UJ7068000 MPMAIN SCH01P3 NAME A 4 ...
Страница 126: ...Appendix 5 Cartridge Sensor Circuit Diagram A 5 CODE UJ7061000 MPCTRG SCH01 NAME ...
Страница 134: ...R Mar 99 5H1002BE0 ...
Страница 136: ...UJ5394001 A Printed in Japan ...
Страница 157: ...UJ5351001 Printed in Japan ...
Страница 212: ...USER S GUIDE Index 2 T Transparencies 2 1 W Windows 5 6 ...
Страница 213: ...PARTS REFERENCE LIST MODEL MP 21C 21CDX R COLOR INKJET PRINTER ...
Страница 224: ... 9 8 ATTACHMENTS MODEL MP 21C CDX 5H1 001 002 910 4 3 5 6 1 2 7A 7B 7C 7D 7E ...
Страница 227: ...Mar 99 54H1002BE0 R ...