Image Stabilization System; Image Stabilization System Overview - Minolta CF910 Service Manual

1154SBM0600A
6

IMAGE STABILIZATION SYSTEM

1154SBM0601A
6-1.

Image Stabilization System Overview

Purpose
• To stabilize
image density
• To stabilize gra-
dation
• To stabilize the
amount of toner
attracted
• To stabilize the
amount of toner
attracted
• To stabilize PC
Drum sensitivity
• To stabilize
paper attration,
image transfer,
paper separa-
tion, and charge
neutralization
An explanation is given of each control other than γ correction control in the relevant sec-
tion that follows the current one.
Paper
Separator
Transformer
Fur Brush
Fur Brush
Bias
Transformer
Image
Transfer
Transformer
Charge
Neutralizing
Transformer
Static Charge
Transformer
Image Transfer,
Paper Separation,
Charge
Neutralizing
Humidity
Sensor
Means
γ correction control
• AIDC Sensor contamination correction
• AIDC detection
• PC Drum surface potential detection
• Max. LD1 intensity calculation
• Operations (setting VG and VB)
ATDC control (C, M, Y)
Black toner replenishment control
PC Drum temperature control
Static Charge, Image Transfer, Paper
Separator, and Charge Neutralizing
Corona output control
Paper Separator
Corona
Charge
Neutralizing
Image Transfer
Corona
Corona
Static
Charge
Corona
AIDC
Sensor
Toner
Replenishing
Motor
ATDC Control
Black Toner
Replenishing
Control
Developer
Life
Counter
PC Drum Charge Corona
PC Drum
Heater
PC Drum
Heater Control
System
PC Drum Heater
Control Board
Developing Bias
ATDC Sensor
M-12
Control (Sensor)
• AIDC Sensor UN20
• Surface Potential Detec-
tion Sensor UN22
• PC Drum Life Counter
• Humidity Sensor UN23
• ATDC Sensors UN33,
34, 35
• Developer Life Counter
• AIDC Sensor UN20
• Humidity Sensor UN23
• PC Drum Heater Control
Board PWB-W
• Humidity Sensor UN23
PC Drum
Charge
Transformer
LD1
LD1 Driver
V0 Sensor
Developing
Bias
Transformer
γ Correction Control
1144M020AA