Konica Minolta bizhub C658 Service Manual page 1988

bizhub C658/C558/C458/C368/C308/C258
[1]
[2]
[1] CIS module (CIS)
[3] CIS cleaning motor (M5)
• A cleaning brush to which a white plate is affixed is disposed on the side opposite the CIS module.
• "Document passage" is performed at the home position.
• "Shading correction", "gain adjustment", and "ADF Scan Glass Contamin. Sensitivity" are made using the shading surface.
[2]
[3]
[1] White plate affixed
[3] CIS glass
[5] Cleaning brush (Shading correction surface)
3.4.2 CIS control when power is turned ON
1. The LEDs of CIS are turned ON.
2. The cleaning brush is detected at its home position.
3. The cleaning brush is rotated and brought to a stop at the gain adjustment position.
The gain adjustment is made twice with the cleaning brush at that position.
4. After the adjustments, the LEDs are turned OFF.
5. The cleaning brush is rotated and brought to a stop at the home position.
* The same control is performed when the main body exits from the sleep mode.
[4]
[5]
PC THEORY OF OPERATION DF-704 > 3. OPERATION
[3]
[2] Cleaning brush
- -
[1]
[2] CIS module (CIS)
[4] Cleaning brush (Home position)
- -
PC-14