Figure 1-26 Pickup, feed, and delivery blocks
Fixing/delivery unit
Pickup/feed unit
Face-down delivery
Face-up delivery
Pickup-and-feed block
The following functions take place in the pickup-and-feed block:
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Detection of media
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Detection of media-size
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Detection of media entering the paper path from Tray 1 or Tray 2
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Lifting of the Tray 2 paper plate
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Prevention of multiple-feeds
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Correction of page skew
When it receives a print command from the host computer, the DC controller PCA turns on the feed
motor (M101) power. The motor drives the Tray 2 pickup, feed, and separation rollers. The drum motor
power also turns on. The laser/ scanner motor power turns on.
The DC controller PCA then activates the feed clutch (CL101) to rotate the feed roller. The Tray 2 pickup
solenoid is activated (SL101) and the pickup arm descends. The pickup roller touches the media and a
sheet is fed into the product. The separation roller prevents multiple sheets of media from being fed at
one time.
As the pre-feed sensor (PS102) detects the media, the dc controller PCA turns off the clutch, which stops
the media. When the DC controller PCA detects that the laser/scanner is ready it activates the feed
32 Chapter 1 Theory of operation ENWW
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