Hitachi PH User Manual

8-10 ● Remedial Action to Be Taken in the Event of a Printing Failure
No.
Printing failure
description
(phenomenon)
Probable cause Solution
Reference
page
1
Chipped print
(minus deflection
electrode side)
Ink and foreign matter are
stuck to the gutter.
● Clean the gutter.
● Replace the recovery
filter.
7-19
7-26
Ink and foreign matter are
stuck to the charge and
deflection electrodes.
● Clean the charge and
deflection electrodes.
2-5
Ink and foreign matter are
stuck to the ink ejection
port.
● Remove the ink and
foreign matter.
-
The ink stream is
improperly positioned.
● Adjust the ink stream. 7-17
The ink pressure is too
high.
● Adjust the ink pressure
for the standard value.
7-29
The ink has deteriorated. ● Replace the ink. 7-7
2
Chipped print
(plus deflection
electrode side)
Ink and foreign matter are
stuck to the charge and
deflection electrodes.
● Clean the charge and
deflection electrodes.
2-5
Ink and foreign matter are
stuck to the ink ejection
port.
● Remove the ink and for-
eign matter.
-
The flow within the nozzle
is restricted.
● Backwash the nozzle. 7-13
The character height
setting is too great.
● Decrease the character
height setting.
3-36
The ink pressure is too low.
● Adjust the ink pressure
for the standard value.
7-29
The ink has deteriorated. ● Replace the ink. 7-7
3
Varying character
height
The clearance between the
print head and print target
has changed.
● Adjust the clearance
between the print head
and print target.
-
Ink and foreign matter
are stuck to the charge and
deflection electrodes.
● Clean the charge and
deflection electrodes.
2-5
Ink and foreign matter are
stuck to the ink ejection
port.
● Remove the ink and
foreign matter.
-
The flow within the nozzle
is restricted.
●
Backwash the nozzle. 7-13
The ink pressure has
changed.
● Adjust the ink pressure
for the standard value.
7-29
The ink has deteriorated. ● Replace the ink. 7-7
8.4 Remedial Action to Be Taken in the Event
of a Printing Failure
● If a printing failure occurs, perform the associated remedial procedures suggested
below.
● If the remedial procedures below do not achieve recovery, it is conceivable that the
problem is attributable to a PC board or circulation system failure. In such an
instance, contact your nearest local distributor.
Direction of
deflection
Chipped
(lost)
Direction of
deflection
Chipped
(lost)

Hitachi PH Specifications

General

Brand	Hitachi
Model	PH
Category	Printer
Language	English