Hitachi PH, Instruction Manual

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1-8 ● Usage Precautions
1.2.2 IJ printer long-term shutdown
In the case where the operation of the IJ printer is irregular (the IJ printer is shut down
for a few weeks in a row, for instance) in conjunction with production and so on, there is
a possibility of occurrence of a problem such as no ink ejecting when operating the
printer or no recovery possible due to accretion of the ink inside the printer.
The period of possible shutdown is different according to the temperature of the storage
as described in the table below. When you are to use the printer in such a manner, it is
necessary to operate it (eject the ink) regularly within an estimatedperiod of possible
shutdown or perform storage work for the long-term shutdown.
(The storage work for the long-term shutdown is to drain the ink in the ink circulation
system and refill it with the makeup ink, which requires a specific operation on a restart.
See "7.15 Long-term shutdown" for details.)
Moreover, in the case of operating it regularly, note that the time necessary for operating
it once is different according to the ink to be used and ambient temperature of the place
for the operation. (It is different depending on major components of a solvent of the
ink.)
Storage temperature
Estimated term of
possible shutdown
*3
Operating time
per operation
0
≦
T
≦
35
℃
3 weeks 10 days 1 to 4 hours
35
<
T
≦
40
℃
2 weeks 7 days 1 hour
40
<
T
≦
45
℃
1 week 5 days 1 hour
*1
*2
*1: Maximum period possible to be continuously shut down without operation.
It is necessary to operate it at least once during this period.
*2: The values in the table indicate the case of an MEK-based ink.
See "1.2.5 Cautions on operating time when printer is in service" for the case of an
ethanol-based ink.
*3: JP-K77, JP-K81 and JP-K86 ink. See "1.2.1(4) g Caution of JP-K77, JP-K81 and
JP-K86".
*4: JP-Y91, JP-Y94 long-term shutdown
Storage temperature
Estimated term of possible
shutdown
Operating time per
operation
0
≦
T
≦
35
℃
2 weeks 1 to 4 hours
35
<
T
≦
40
℃
1 week 1 hour
40
<
T
≦
45
℃
1 week 1 hour
Even if the treatment for long-term shutdown has been performed,
restart may not succeed due to accretion of ink components.
Ask your serviceman for restart whenever possible.
(In cases where temperature in the storage place is high [30
℃
or
higher], or shutdown period has exceeded six months, be sure to ask
your serviceman for restart.)
CAUTION