2-26 Phaser 8400/8500/8550 Color Printer
Paper Pick for Trays 2 - 4
Note
Trays 3 and 4 are 525-Sheet Feeders.
For Trays 2 through 4, the paper pick process is different than the pick process used
by Tray 1. To pick a sheet of paper, the media path drive starts, and the pick clutch
engages, which turns the pick roller and the nudger roller. The nudge roller advances
one sheet of paper forward into the pick nip. The retard roller prevents two sheets
from advancing. The sheet of paper continues past the take away rollers until the sheet
completes the deskew process. When using the optional 525-sheet feeder, paper is
pre-picked from the tray and staged in the paper path while the printer is printing
previous pages.
The deskew process uses a reverse/buckle deskew for all three paper paths. The paper
is driven against the non-rotating rollers, which are reversing during simplex, causing
a buckle in the paper ensuring the leading edge is straighten to prevent skewing. The
deskew rollers do not reverse during duplex printing.
Exit Sensor
Deskew Sensor
Preheat Exit Sensor
Strip Sensor
Deskew Roller
Retard Roller
Pick Roller
Nudger Roller
s8500-025
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