Canon imagePROGRAF W2200, Service Manual

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Part 3
㧦
Technical Reference
W2200
3-4
2. PRINT HEAD
Each nozzle of Black, Cyan, Magenta, Yellow, PhotoMagenta and PhotoCyan are divided to
2-nozzle array (odd/even). Nozzles of two lines are alternatively arranged and it is shifted by
1200dpi. Thus, if two lines of nozzles are printed with one pass, it realizes the resolution of
1200dpi. By making the nozzle length one inch, and extending the printing width for one pass,
it is possible to accelerate the printing speed.
The structure of the head is illustrated below. Ink is put in the sub-ink tank, and the sub ink
tank is divided into ink layer and air layer from the bottom. Then the air bubbles generated
when ink is ejected will go out through the damper.
Print head
surface
(simplified view)
Sub tank cover
Damper
Sub tank
Sub tank joint
1/600 inch
640 Nozzles
640 Nozzles
1/1200 inch
Heater Heater Board