Lever Drive Circuit - Epson TM-U675 Service Manual

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Lever Drive Circuit

This printer has two levers to drive the mechanism. The lever motor rotation enables lever A
and lever B to function. This controls the mechanism.
Lever A and lever B are solenoids driven by 24V. Simple drive of lever A and lever B is
performed by an NPN Darlington transistor. LEVER1 and LEVER2 are output signals from the
CPU.
• Lever A: Driven by a LOW level of the LEVER1 signal
• Lever B: Driven by a LOW level of the LEVER2 signal
VCC
Q43
LEVER2
LEVER1
Appendix D-60 Product Overview
Q42
D44
D17
Q53
R174
R175
LEVER
Q54
Figure D-56
CN30
24VC
D21
LEVER-A
LEVER-B
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Rev.D