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3. OPERATIONS AND
TIMING
E. Developing Assembly
1.
Outline
The
is equipped with four photosensitive drums, and a developing assembly is fixed in posi-
tion for each drum for development of Y, M, C, and Bk. The developing cylinder for each color is driven by
the developing motor installed for the respective color.
Toner is supplied to developing assemblies differently among Y, M, and C developing assemblies and
layer on the developing assemblies and the reflected light is measured to determine the amount of toner
to supply; on the other hand, in the case of the Bk developing assembly, video signals representing the Bk
component and the output of the SALT sensor are used to compute the amount of toner to supply. (See
"Measuring Color Toner Density" and "Measuring Black Toner Density," respectively.)
Pick-up motor
Photosensitlve drum
Bk developing motor
COPYRIGHT Q 1997 CANON INC.
3-102
C developing motor
Figure 3-526
CANON
Y developlng motor
REV.1 MAY 1997 PRINTED IN JAPAN (IMPAIME AU JAf'ON)
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