CHAPTER 6 IMAGE FORMATION SYSTEM
4. Sequence of Measurement
The concentration of color toner is measured during copying operation to determine the
amount of toner to supply.
Patch detection, for which the Bk toner sensor is used, is performed after 20 copying
operations regardless of the selected copying mode or copying size.
Side of transfer drum
Image on photosensitive drum
Measurement by Bk sensor
Measurement by color toner
COPYRIGHT © 1999 CANON INC.
Measures the concentration of toner on the
developing cylinder and determines the amount
of toner to supply.
Figure 6-404 Measuring M Developer
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Measures the concentration of toner on
the photosensitive drum, and uses the
result as a correction value during
measurement by the color toner sensor.
B / A