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Displacement of the fixing film is physically corrected by the fixing film motor (M4).
When it identifies displacement of the fixing film, the DC controller rotates the fixing
film motor to move the rear of the tension roller up and down, thereby moving the fixing
film to the center to correct the displacement.
When the fixing film becomes displaced toward the rear, the tension roller is moved
down to move the fixing film toward the front.
When the fixing film becomes displaced toward the front, on the other hand, the
tension roller is moved up to move the fixing film toward the rear.
The fixing film is positioned properly by repeating these operations as necessary. If
the film has become displaced so much that the mechanism fails to make adequate
correction, ‘E007’ is indicated on the display. (See p. 10-110.)
Figure 6-108
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 6 FIXING SYSTEM
6-9
Fixing belt motor (M4)
Tension roller
(rear view)
displacement to the rear
displacement to the front