CHAPTER 6 IMAGE FORMATION SYSTEM
COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.0 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
c. Flow of Controlling the Gradation Sensor During Copying Operation and Related
Detail Code
(The notation "xx" in detail code indicates the color of developing assembly; xx=01:M,
xx=02:C,xx=03:Y)
Initial settings
1.Copying start
2.RAM check
3.Drum surface
detection
4.Path image
formation
5.Intensity
measurement
5-1. Intensity
reading
5-2. Comparison,
computation
Flow of operation
(The Start key is pressed.)
The P-SENS-Y/M/C/K
readings stored in RAM are
read.
(during initial rotation)
Measure
DISPLAY>DENS>P-SENS-
P and then, sets the
following:
DISPLAY>DENS>P-
GRND-Y/M/C/K.
On the surface of the
photosensitive drum, a
sample color toner image
(patch image) is formed in
the area coming face-to-face
against the link plate of the
transfer drum.
The light reflected by the
patch image is measured.
The LED is tuned on, and
the sensor (PS) is used to
check the light reflected by
the image, thus measuring
the light intensity by voltage
conversion.
The target value (P-TRGT-
Y/M/C/K) and the readings
taken in 5-1 are compared.
Detail code
xx67
xx77
00A3
---
---
---
Items of detection
The P-SENS-Y/M/C/K
reading is 256 or lower.
The P-SENS-Y/M/C/K
reading is 800 or higher.
The P-SENS-P reading is 100
or lower, or 1023.
Table6-412e
Figure6-412e
Photo sensor (PS)
Photosensitive drum
Gradation sensor (PS73)
6-46f
Содержание CLC 1130
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