Hitachi PH Instruction Manual page 66

If the print head cover is dirty, apply the makeup ink and clean it.
4
* 1 Clean the portion which became dirty with a splatter on printing or a splash
on ejecting the ink.
* 2 After cleaning, wipe away the makeup ink by using wiping paper.
When wiping the inside of the cover, wipe it by holding the wiping paper
with tweezers.
Install the print head cover.
5
Press the power ON/OFF switch to turn OFF the power.
6
Using the nozzle rubber seal
1. To prevent nozzle orifice plate drying and dust accumulation during printer
transit and storage, a "nozzle rubber seal" has been incorporated at the
factory prior to shipment. Remove the "nozzle rubber seal" at the time of
printer installation/test run/adjustment.
Nozzle rubber seal
2. The "nozzle rubber seal" is effective in preventing orifice plate drying and
dust accumulation. When shutting down the printer, it is recommended that
you set the nozzle rubber seal between the orifice plate and charge electrode
to assure smoothness in the next printer startup.
Usage precautions
When storing the nozzle rubber seal, place it in a vinyl bag or the
1
like to prevent it from collecting dirt and dust.
2 Before setting the nozzle rubber seal in position, be sure to clean
it with the makeup ink.
3 When installing the nozzle rubber seal, exercise care not to
deform the charge electrode.
Charge electrode
Orifice plate
●Shutdown 2-11