Cleaning Blade Pressure/Retraction Mechanism - Konica Minolta magicolor 1600W Service Manual

Theory of Operation Ver. 1.0 Nov. 2008
12.3.3

Cleaning blade pressure/retraction mechanism

• In color printing, an image is formed on the transfer belt for each color of toner. The
cleaning blade is therefore provided with a pressure/retraction mechanism.
• The machine is not, however, provided with a pressure/retraction sensor. Instead, the
IDC sensor detects a sample image on the transfer belt to control the pressure/retraction
operation.
• In monochrome printing, no retraction sequence is carried out.
• The cleaning blade is normally in pressed contact with the transfer belt.
A. Pressure/retraction operation
• The cleaning blade pressure/retraction operations are performed by the Transport motor
(M1), Cleaning blade pressure/retraction solenoid (SD5), pressure cam, and the lever.
• When the Cleaning blade pressure/retraction solenoid (SD5) is energized, drive from the
Transport motor (M1) is transmitted to the pressure cam.
Cleaning blade
12. 1st transfer section
pressure cam
Cleaning blade pressure/
retraction solenoid (SD5)
Transport motor (M1)
pressure
cam
A034T2C529AA
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