Simplex Printing - Konica Minolta Bizhub 4700P Service Manual

bizhub 4700P/bizhub 4000P Service Manual
The MPF can be accessed by opening the MPF tray on the front door. In an MPF paper feed, the MPF
paper present sensor detects the media. The instant the MPF pick roll shaft rotates, the cams on each
end of the shaft disengage the MPF tray. Each side of the tray is connected to the front access cover by
springs. When disengaged from the shaft, the springs pull the tray causing the media to come into
contact with the MPF pick roller. At the same time the pick roller rotates, pushing the media to the
separator pad. The media does not pass through the secondary input roller, but directly to the first input
roller.

12.3.3 Simplex printing

Situated along the first input roller, is the deskew shutter. It subjects the media to a deskewing force
based on the media width. The direction of the force is transverse to the feed direction. The leading
edge of the media then passes though the input sensor.
After the edge of the media is aligned, the first input roller feeds the media to the transfer roll for toner
transfer. At this point, the toner image is already on the photoconductor drum surface. As the media
passes between the photoconductor drum and transfer roll, the toner image is transferred to the media.
The media with the embedded toner image goes through the fuser assembly to permanently bond the
toner to the media. When it passes between the heat belt and pressure roll of the fuser assembly, the
combination of heat and pressure fuses the toner image to the media. The fuser exit roller feeds the
media to the paper exit roller and then to the output bin.
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