Image Correction Unit Shutter Mechanism; Control Of Flip Prevention For The Belt Cleaning Blade; Control Against Belt Filming; Image Stabilization Control - Develop ineo+ 6500 Service Manual

11. INTERMIDIATE TRANSFER SECTION
11.3.5

Image correction unit shutter mechanism

• The image correction unit is provided with a shutter mechanism that covers the sensors while they are not
used to prevent them from contamination.
• The color registration sensor shutter /Fr [6] and /Rr [7] are driven by the color registration shutter solenoid
(SD2) [2] in order to protect the color registration sensor /Fr (PS8) [5] and /Rr (PS9) [8].
• The PGC sensor shutter [3] that protects the PGC sensor [4] is driven by the PGC shutter solenoid (SD3)
[1].
[1] SD3
[2] SD2
[3] PGC sensor shutter
[4] PGC sensor
11.3.6

Control of flip prevention for the belt cleaning blade

• As countermeasures against the flip of the belt cleaning blade and the occurrence of white bands on
images, a toner band is periodically created on the transfer belt.
• Creating the toner band can be enabled/disabled with DipSW20-4.
11.3.7

Control against belt filming

• Lubricant contained in the toner adheres to the transfer belt, and can cause white bands on images.
• Therefore, toner is stored between the belt cleaning blade and the toner guide roller to scrape the lubricant
off the belt surface with the toner at regular intervals.
11.3.8

Image stabilization control

To achieve stable image quality, the following controls are provided. Refer to
CONTROL" for details.(See P.110)
• Color registration control
54
[5] [6]
[4] [3] [2]
Theory of Operation Ver1.0 Sep.2006
[7] [8]
[1]
[5] PS8
[6] Color registration sensor shutter /Fr
[7] Color registration sensor shutter /Rr
[8] PS9
"23. IMAGE STABILIZATION
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