Hitachi PB Series User Manual page 16

1–6 1.1 Usage Precautions
4. When using JP-K31A ink, the following precautions must be observed. The
charging and deflecting electrodes and a gutter are provided inside the print head.
If highly conductive carbon black settles on the print head mounting base (made of
insulating material), leakage can occur between these electrodes resulting in
frequent recurrence of errors. It is, therefore, important to clean inside the print
head whenever stains are detected.
After the operation is com-
pleted, sprinkle the makeup ink
on the orifice plate, the char-
ging electrode, the deflecting
electrodes, the gutter and the
mounting base, and then clean
them using the cleaning pin.
Remove carbon black and
makeup ink from the parts
(including the mounting base)
using paper wipers and let the
parts dry at ambient tempera-
ture.
If the printer doesn't operate
normally after the procedure
described above has been
performed, some carbon black
causing creepage may have
remained on the surface of the
mounting base. In this case,
remove the positive deflecting
electrode and clean
mounting surface with wiping
paper moistened with makeup.
Also remove the charging
electrode, and wipe off the
surface of the orifice plate as
well.
5. When printing is performed frequently or there is not much space between the print
material and the print head, ink splashes may stain the end of the print head and
the print head cover. If this condition is left as it is, the staining will worsen, resulting
in a print error or emergency stop. If a print error or emergency stop frequently
occurs because of stain due to ink splashes, stop the operation in progress and
clean the end of the print head and the print head cover. Do this in addition to the
cleaning to be performed at the end of each daily work.
the
Section 1