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REV.-A
Head construction is shown in Figure 2-57. Each part is described below.
<
Head damper>
Slides the ink tube with carriage movement. The head damper absorbs pressure changes which take
place in the tube. This prevents excessive flow of ink to the reservoir.
<
Reservoir>
Ink flowing to the inside of the print head accumulates in the reservoir.
<
Nozzle>
Accumulated ink in the reservoir is injected through the nozzles. Nozzle construction is shown in Figure
2-58.
Piezoelectric Element
\
Reservoir
Head Damper
....
....."
/ /
"
'~\
I
\
\ \
f
\
\ ,
(
\
\ 1
1
,
'I
,
I
"
\
I
,
"
I
"
'...
'-")
/ /
"
'-.I
I
:............
I
I
I
'I
J
I
J
I
I
I
'I
)
,
' "
, .... _
, . / , _ .... '.....
.....//1
'-~
"---> _-=:-:. . . . . . .
....
_--'
Figure 2-58. Head Construction
Ink Path
Nozzle
Pressure
Chamber
Piezoelectric Element
Diaphragm
Printed Circuit
Board
Figure 2-59. Nozzle Construction
2-54
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