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d-Color MF4003/MF3303
P THEORY OF OPERATION > 1.
d-Color MF4003/MF3303
P-16
[1]
[2]
[3]
[6]
[5]
[7]
[4]
[1]
Developing roller
[2]
Photoconductor
[3]
Waste toner collecting screw
[4]
Cleaning blade
[5]
Charging roller
[6]
Toner supply screw 2
[7]
Toner supply screw 1
-
(2) Operation
(a) Imaging unit detection
• The imaging unit of each color of toner is provided with a TCR sensor. The sensor detects different states of the corresponding
imaging unit.
[1]
[1]
TCR sensor
-
-
NOTE
▪ Be sure to replace the imaging unit with a new one that has not been used. A TCR sensor error (trouble code: 25##) may occur if
a used imaging unit is installed.
Service Manual
Y119930-3
Summary of Contents for d-Color MF 4003
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