Hitachi UX2 Series, Instruction Manual

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Chapter 1. Overview
1-4
1.2.2. IJ Printer Long-term Shutdown
When this unit is shut down for a long time due to production or other circumstances, the ink may accrete inside
the unit after shutdown and cause such problems as inability to be ejected or to be recovered. If this occurs, one
of the following actions (1) and (2) must be taken.
(1) During the shutdown period, be sure to prevent accretion by operating the unit
periodically.
Operate (eject ink) the unit for one hour or longer at least once during the "Recommended shutdown period"
shown in the table below.
(2) Perform long-term shutdown storage work.
Before storage, drain the ink from inside the unit and fill the unit with makeup.
When restarting operation after storage, drain the makeup from inside the unit and fill the unit with ink.
See the Technical Manual "5.15 Long-term Shutdown" for details.
Note that since long-term shutdown storage requires special work, it is recommended to contact your nearest
local distributor and ask for the work.
Recommended shutdown period
Storage temperature Recommended shutdown period *1
0 to 35°C 3 weeks
35 to 40°C 2 weeks
40 to 45°C 1 week
*1: This is the maximum period during which the unit can be continuously shut
down without being operated.
- The values in the table are for MEK-based ink.
- Ink other than the above requires special handling in accordance with the
handling guidance of each ink.
- To prevent adhesion, store the unit at as low temperature as possible.
- Please note the ink may harden within a week when it is stored at 45°C or
higher.