Image Processing In The Write Section - Konica Minolta Bizhub 501 Service Manual

Theory of Operation Ver.2.0 Mar. 2009 22. IMAGE PROCESSING

22.2 Image processing in the write section

A. Rotation/elongation
B. Frequency conversion
C. PWM
A. Rotation/elongation
Rotate the image in the direction of 90 degrees and 180 degrees as necessary.
When outputting images from the memory, expand the compressed data to restore them to their original state.
B. Frequency conversion
Write in the memory once the data after the PWM conversion and read it in accord with the write clock signal of
the printer.
C. PWM
The period of time the laser is turned ON is changed by changing the pulse width.
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