Image Stabilization Control - Konica Minolta bizhub C250 Service Manual

Theory of operation ver. 3.0 Aug. 2006

22. Image stabilization control

22.1 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
Toner Repleni-
shing Control
OUT/IN
· To be set on control panel
D MAX Density
Background Voltage Margin
ATDC Toner Supply
Control
• IDC intensity control
• Max. density control
• LD intensity adjustment control
• Registration control (color shift
correction)
• Gamma correction control
* TCR control (Y,M,C,K)
* Image transfer output control
1st image transfer ATVC
2nd image transfer ATVC
1st Image Transfer Roller
PC PC
Drum/ Drum/
Y M
TCR Sensor
Developing Bias Vdc
Image Density
Gradation Control
Gamma Correction Data
Gradation Correction Table
Temperature/
Humidity Sensor
22. Image stabilization control
Control means
IDC/registration sensor
temperature/humidity sensor
TCR sensor
Temperature/humidity sensor
PC PC
Drum/ Drum/
C K
Grid Voltage Vg
IDC Sensor
Transfer ATVC Control
IN
OUT
2nd Image
Transfer Roller
4038T2E502DA
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