Purge Unit; Paper Feed Unit - Canon BJC 6000 - Color Inkjet Printer Service Manual

Part 4: Technical Reference

3.1.3 Purge unit

The purge unit, driven by the paper feed motor, is comprised of the wiper, pump, cap,
and carriage lock unit. The wiper unit keeps the BJ cartridge head face in good
condition to ensure high quality printing while the suction function ensures that the
ink in the nozzle can be easily discharged. When not in use, the unit protects the BJ
cartridge with its cap and secures the carriage by locking it in place.

3.1.4 Paper feed unit

The mechanical portion of the paper feed unit is comprised of the pick-up unit, paper
feed unit, and paper ejection unit.
Pick-up unit
Paper is supplied either from the auto-sheet feeder in auto paper feed mode, or from
the manual feed slot in manual paper feed mode. The auto-sheet feeder, driven by the
paper feed motor, can be loaded with various sizes of paper up to legal size and
automatically supplies paper (picks up and delivers the paper to the paper feed unit).
Paper feed unit
The paper feed unit, driven by the paper feed motor, turns the feed roller to
horizontally move the paper beneath the BJ cartridge print head while keeping the
paper level on the platen without cockling. To manually feed paper through this
printer, use the RESUME button, as there is no paper feed knob.
Paper ejection unit
The printed paper is ejected by the eject rollers into the paper eject tray.
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BJC-6000