Sequence Of Operations (Measurement) - Canon 1130 Service Manual

5. Sequence of Operations (measurement)

Patch detection using the Bk toner
supply is executed for each copy as follows:
1. When copying on side B, a patch is formed in the area that faces the linking plate along the
trailing edge of the image.
2. When copying on side B, a patch is formed in the area that faces the linking plate along the
leading edge of the image.
Developer
Side of transfer drum
Image on photosensitive
drum
Measurement by Bk toner
concentration sensor (PS72)
COPYRIGHT © 2002 CANON INC.
concentration
INTR
Figure 6-408 Using Side B
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 6 IMAGE FORMATION SYSTEM
sensor to determine the amount of toner to
COPY
Bk
n
The concentration of toner on the pho-
tosensitive drum is measured, and
an amount of toner to supply is dete-
rmined based on the measurement.
Bk
n+4
6-39