Controlling The Fixing Film Motor - Canon NP6218 Service Manual

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CHAPTER 6 FIXING SYSTEM

2. Controlling the Fixing Film Motor

The fixing film motor is a stepping motor, and is rotated by the drive signal FMD and
pulse signals FFA, FFA*, FFB, and FFB*.
When FMD is '1', the drive voltage FFCA and FFBC are imposed; the motor starts
to rotate when pulses are applied to each phase in specific sequence.
The motor is rotated in reverse by applying these pulses in reverse order.
Microprocessor
(Q314)
6-10
FMD
FFA
FFA*
FFB
FFB*
DC controller PCB
Figure 6-109
COPYRIGHT © 1997 CANON INC.
+24V
FFCA
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
FFCB
M4

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