Image Stabilization Control; Outline; Operation Flow; Image Stabilization Control Flow When The Power Switch (Sw2) Is On - Konica Minolta BIZHUB 750 Service Manual

Theory of Operation Ver1.0 Aug.2005

24. IMAGE STABILIZATION CONTROL

24.1 Outline

In order to realize the top quality print images at all times, this machine conducts various types of control for
image stabilization. The operation of the image stabilization control varies depending on whether the power
switch (SW2) is turned ON and the print is in operation.

24.2 Operation flow

24.2.1

Image stabilization control flow when the power switch (SW2) is ON

The following shows the operation flow of the image stabilization control when the power switch (SW2) is turned
ON. However, this flow indicates an example in bizhub 750 in which the warm-up is made for 180 sec. in the
prescribed environment.
B. Pre-rotation of the drum
D. Maximum density correction
NOTE
• Depending on the environmental condition, the cleaning of the charge and the transfer/separation
charge is made. Charge cleaning cycle varies with the number of prints set of the DIPSW2-4 and
2-5.
A. Charge cleaning
(1) Execution timing
• When the specified conditions are met upon the power ON, the charge and transfer/separation charge are
cleaned.
B. Pre-rotation of drum control
(1) Purpose
• To prevent the drum charge leak such as an image flow while in the high humidity.
• When left at a low or normal humidity, to prevent an uneven density due to the difference in sensitivity
between the areas facing the cleaner and developing unit of the drum and other areas.
(2) Execution timing
• When the environmental condition at the time of the power switch (SW2) being turned ON meets the pre-
scribed condition, rotate the drum for a specified period of time after starting the OS.
Power on
A. Charge cleaning
C. MPC/APC
E. Gamma correction
24. IMAGE STABILIZATION CONTROL
F. Environmental decision
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