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1-14 Service Manual
5016-001
Operation of the Second paper feed unit
When the paper cassette (tray 1) is placed in the printer, a flag
molded to the right side of the tray, contacts the release lever which
rotates the paper transfer roll allowing it to contact the paper in the
tray.
When the command is given to start printing, the optional paper tray
stepper motor rotates, rotating the respective reduction gears. The
rotating reduction gears cause the gears attached to the paper feed
roller and paper transfer roller to start rotating. The paper feed roller
contacts the paper causing the paper to feed to the idler roller. The
one way clutch causes the idler roller to rotate feeding the paper
past the paper pass sensors located prior to the idler roller and the
timing roller. After a predetermined period of time, the paper feed
clutch is turns off and the paper feed roller and paper transfer roller
stop rotating. At this point, the paper stops at the timing roller and
pauses. If the pass thru sensors do not detect paper from the
cassette, a paper jam displays.