86 Theory of operation Q2431-90912
Fixing/delivery block
The paper pickup and feed system is divided into two blocks. The paper pickup tray to the fuser
block, and the fuser to output bin block.
Figure 21. Paper pickup/feed and fuser/delivery block diagram
The fuser/delivery block consists of the various rollers, sensors, the fuser, and the output
delivery assembly. The rollers transport the media through the fuser/delivery block paper path.
The fuser applies heat and pressure to the media to permanently bond the toner image (which
was transferred to the media from the photosensitive drum in the print cartridge) to the media.
The output delivery assembly sends the printed media either to the rear output bin (if the rear
output door is open) or to the top output bin (the default output delivery bin). Sensors along the
paper path detect the movement of the media, jams if they occur, and when the top output bin is
full.
Fuser/delivery block
Paper pickup/feed block
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