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January 2005 © TOSHIBA TEC
e-STUDIO170F Circuit Description
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7.3.8
RX Motor Drive Circuit
Fig.7-26
The RX motor drive circuit consists of the Engine-CPU (IC37), Motor driver (IC21), and other peripheral
devices. It drives the stepping motor connected to CN12 to drive the rollers and transport paper.
The Engine-CPU turns the ENABLE signal to HIGH level and turns Q104 ON. This allows the Motor
driver to generate the drive signal (RXMA, RXMAX, RXMB, RXMBX) of RX motor and sends it to the
RX motor.
The RX motor is driven in steps according to the input drive phase signals.
Signal Name
Type
Active
Description
Destination
ENABLE
O
H
RX motor driver enable signal
Q104
RXMA, AX, B, BX
O
-
RX motor drive phase signals A, AX, B, BX
RX motor
Main PBA
RX motor
1
2
3
4
CN12
IC21
Motor driver
RXMA
ENABLE
RXMAX
RXMB
RXMBX
21
17
15
14
12
7,9
IC37
Engine-CPU
Q104
+5V1
R264
Summary of Contents for ESTUDIO170F
Page 2: ... 2005 TOSHIBA TEC CORPORATION All rights reserved ...
Page 192: ...e STUDIO170F Function Settings January 2005 TOSHIBA TEC 4 132 ...
Page 214: ...e STUDIO170F Mechanical Description January 2005 TOSHIBA TEC 5 22 ...
Page 308: ...e STUDIO170F Circuit Description January 2005 TOSHIBA TEC 7 78 ...
Page 372: ...e STUDIO170F Removal Replacement Adjustment January 2005 TOSHIBA TEC 8 64 ...
Page 490: ...e STUDIO170F Appendix January 2005 TOSHIBA TEC 12 8 ...
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