Image Stabilization Control; Overview - Konica Minolta magicolor 8650 Service Manual

Theory of Operation Ver. 2.0 Nov. 2007

21. Image stabilization control

21.1 Overview

• The machine provides the following image stabilization control to ensure stabilized print
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 margin
Replenish toner
Control
• IDC registration sensor adjust-
ment control
• Max. density adjustment control
• LD intensity adjustment control
• * Registration control (color shift
correction)
• Gamma correction control
* TCR control (Y,M,C,K)
* Image transfer output control
• 2nd image transfer ATVC
PC PC
drum/ drum/
Y M
TCR sensor
Developing bias Vdc
Image Density
Gradation control
Gamma correction data
Gradation correction table
Temperature/
humidity sensor
21. Image stabilization control
Detection means
IDC registration sensors
Temperature/humidity sensor
TCR sensor
Temperature/humidity sensor
PC PC
drum/ drum/
C K
Grid voltage Vg
IDC registration sensor
Transfer ATVC control
IN
OUT
2nd image
transfer roller
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