Ij Printer Long-Term Shutdown - Hitachi PB Series User Manual

1–4 1.1 Usage Precautions
1.1.2

IJ printer long-term shutdown

In the case where the operation of the IJ printer is irregular (e. g. not used for a number
of weeks, for instance) depending on production requirements or similar, problems may
occur, such as no ink ejecting when operating the printer or no recovery possible due
to accretion of the ink inside the printer.
The possible shutdown period is different depending on the storage temperature as
described in the table below. When you are using the printer in such a manner, it is
necessary to operate it (eject the ink) regularly within the estimated period of possible
shutdown or prepare the printer for a long-term shutdown.
(Preparation for a long-term shutdown requires draining the ink completely from the ink
circulation system and refilling it with the makeup ink, which requires a specific
operation on a restart. (See
Moreover, in the case of operating the printer regularly, note that the time necessary for
an intermediate operation is different depending on the ink to be used and ambient
temperature of the place of operation. (Differences are caused by major components of
the solvent of an ink.)
Storage temperature
0 ≦ T ≦ 35 °C
35 < T ≦ 40 °C
40 < T ≦ 45 °C
*1: Maximum period for a continuous shut down without intermediate operation.
It is necessary to operate the printer at least once during this period.
*2: The values in the table indicate the case of an MEK-based ink.
Section 1.1.5, "Operating hours" for ethanol-based ink.)
(See
Section 6.15, "Long-term Shutdown" for details.)
Estimated period of
*1
possible shutdown
3 weeks
2 weeks
1 week
Operating time per operation
1 to 4 hours
1 hour
1 hour
Section 1
*2