Controlling the Fixing Film Motor | Canon NP6218, FY8-13EX-000

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.

+24V

FMD

Microprocessor

(Q314)

FFA

FFA*

FFB

FFB*

DC controller PCB

FFCAFFCB

Figure 6-109

6-10

CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)