Image Stabilization Control - Develop QC 2235 Plus Service Manual

Image stabilization control

18. Image stabilization control
18.1 Overview
• The machine provides the following image stabilization control to ensure stabilized copy
image.
Purpose
To stabilize image density
To stabilize gradation
To stabilize toner density
To stabilize image transfer
• An explanation is given of the control for each section.
Toner Supply Motor
ATDC Sensor
Toner Repleni-
shing Control
OUT/IN
· To be set on control panel
PRT MAX Density
PRT Highlight
Background Voltage Margin
ATDC Level Setting
AE Adjust
ATDC Toner Supply
QC 2235plus Theory of Operation Ver.1.0 Feb. 2004
Control
• AIDC intensity control
• Max. density control
• Registration control (color shift
correction)
• γ correction control
• ATDC control (Y, M, C, Bk)
• Image transfer output control
1st Image Transfer Roller
PC PC
Drum/ Drum/
Y M
Developing Bias Vb
Registration
Control
Image Density
Gradation Control
γ Correction Data
AIDC Table
Temperature/
Humidity Sensor
2-84
Control Means
AIDC Sensor
Temperature/Humidity Sensor
ATDC Sensor
Temperature/Humidity Sensor
2nd Image Transfer Roller
PC PC
Drum/ Drum/
C Bk
Grid Voltage Vg
AIDC Sensor
Transfer ATVC Control
IN
OUT
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