Hitachi PH, Instruction Manual

Page: 31 / 288

1-20 ● Installing Precautions
(8) If ambient humdity is 85 to 90%RH, you must purge inside of print head by air.
It is necessary for dry-clean air, refulator for pressure of air and air filter.
(Quantities of the air are 1L / minutes.)
(9) When installing the print head and print head cable, comply with the following con-
ditions.
When positioning the end of the print head above the printer main body
installation surface,ensure that the distance between the end of the print head and
the installation surface does not exceed 1.5 m.
When positioning the end of the print head below the printer main body installa-
tion surface, ensure that the distance between the end of the print head and the
installation surface does not exceed 1 m.
1
2
Print head cable
Print head
IJ printer
main body
Main body installation surface
1.5m
Upward printing Lateral printing Downward printing
Print head
cable included
1m
(10) When using the printer for upward or lateral printing, ensure that the rising print
head cable upper end is positioned not more than 0.5 m above the print head.
Print head cable
Bend R
0.5m
Print head
(11) If you fixed the print head, ensure that the minimum bend radius of the print head
cable is at least 150 mm.
(12) The ink stream may bend for some reason or other (due, for instance, to dirt).
The facilities positioned in the direction of ink ejection should be partially covered
as needed to avoid ink accumulation.
(13) When connecting an exhaust duct to the printer, install a damper and adjust the
wind velocity at the intake port to 0.3 to 0.5 m/s.
(Use an anemometer for verification. If the wind velocity is too high, the makeup
ink consumption increases.)
Connect a duct to this port
(50 mm in diameter).
Exhaust duct