ENWW Paper feeder 191
Figure 5-65 Paper feeder PCB signal flow
Pickup/delivery sequence
The paper feeder is driven by the feed motor (M1) via a gear.
The following is the sequence of paper pickup at the paper feeder.
1 The printer controls the fuser heater temperature and drives the scanner motor upon receipt of
a print command from the formatter.
2 The feed motor (M1) drives when the fuser heater temperature reaches the specified
temperature.
3 After the specified period after the scanner motor drive has started, the paper feeder pickup
solenoid (SL3) is turned on. The pickup roller rotates and picks paper up. The double feeding
of paper is prevented by the separation pad.
As the paper feeder pickup clutch (CL4) is engaged, the feed roller rotates and feeds the
paper to the registration roller.
4 When the paper is detected by the registration paper sensor (PS4) after passing through the
roller, the paper feeder pickup clutch (CL4) is disengaged and the paper stops.
5 At the specific timing when the leading edge of paper should match the edge of the image on
the ITB, the paper feeder pickup clutch (CL4) is engaged again to re-feed the paper.
6 The paper, having had the image on the ITB transferred on it, is fed to the fuser/delivery unit.
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