122 Theory of operation C7085-90921
Paper path
Introduction
For cassette feeding, a sheet of paper is picked up by the cassette pick-up roller and is then fed by
the feed rollers. For manual feeding, a sheet of paper is picked up by the multi-purpose tray pick-up
roller and is then fed by the feed rollers. The pick-up motor (M2) provides the drive for the front of
the paper path.
Once paper is fed into the general paper path, the paper passes through the registration rollers.
The paper is temporarily stopped so that the paper’s leading edge will match the leading edge of
the image on the photosensitive drum. The paper then passes between the secondary transfer
roller and the ITB. The paper continues past the web transport and past the upper and lower fusing
rollers to either the face-up tray or the face-down tray.
The paper path is shown in Figure 5-25.
Figure 5-25 Paper jam sensors
(shown with the optional 500-sheet paper feeder and duplex unit installed)
1 Registration paper sensor (PS2)
2 Duplex paper-pick sensor (PS3104)
3 Duplex unit pick-up paper sensor (PS3103)
4 Reversed paper sensor (PS3101)
5 Delivery paper sensor (PS7)
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