3.2.2.3
Head maintenance mechanism
[ 1 ] Maintenance mechanism components
The head maintenance mechanism consists of the maintenance unit and the ink absorber box. (See
the illustration below.)
The maintenance unit has the following functions.
- Locking the head/carriage unit
- Capping the head nozzles to prevent them from drying up (See
- Purging for restoring optimum head performance by removing old ink from the head nozzles (See
page
3-25.)
- Removing air bubbles from the print head (See
- Cleaning with the wiper (See
The ink absorber box absorbs the ink sucked out by purge operations.
Ink absorber box
(Head/carriage unit)
[ 2 ] Maintenance unit components
- Pump switching unit
This switches the negative pressure from the tube pump and the atmosphere to the black and color
head caps, the air vent unit, etc.
- Purge cam
This rotating cam drives the carriage lock, the switching unit, the air vent rods, the head wiper, etc.
- Head/carriage lock
This locks the head/carriage unit in its home position.
page
page
3-29.)
(Ink supply tubes)
3-22
page
3-24.)
3-13.)
Maintenance unit
(Ink refill ASSY)
(Ink cartridges)
Confidential