Carriage; Purge Section; Paper Feed Section - Canon SmartBase MPC600F Service Manual

3.1.1 Carriage

The carriage holds one BJ cartridge in place. The carriage belt driven by the carriage motor (DC motor)
moves the carriage horizontally back and forth across the paper.
Regarding the carriage's position control, the initial position is detected when the carriage goes against
the right wall which is the home position.
After that, the carriage position is detected by reading the pulse from the encoder film.
The paper spacing position is read from the carriage position when the carriage goes against the left wall.

3.1.2 Purge section

The purge section, driven by a dedicated purge motor, consists of the wiper, pump, cap, and carriage
lock.
The wiper maintains the head face surface to ensure high-quality printing. The ink suction feature enables
the ink to be readily ejected from the nozzles.
When the BJ cartridge is not in use, the nozzles are protected by a cap, and the carriage is locked in place.
The motor's running direction controls the ink suction operation or capping/wiping/valve open/closing
operation.

3.1.3 Paper feed section

The paper feed section consists of the paper feed components, paper transport section, and paper
discharge section.
Paper feed
Paper is fed automatically by the auto sheet feeder.
The auto sheet feeder is driven by the ASF motor. Paper of various sizes up to legal size can be stacked
and fed automatically (the paper is transported to the paper transport section).
Paper transport section
The paper feed section, driven by the paper feed motor, keeps the sheet of paper flat and horizontal on the
platen and rotates the feed roller to move the paper horizontally to and beneath the print head.
Paper eject section
After printing, paper is ejected onto the discharge tray by the eject rollers.
After the sheet of paper leaves the paper feed rollers, the eject rollers take over to eject the paper.
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SmartBase MPC600F/MPC400 Chapter 2: Technical Reference
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