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[ vii ]
Required Operating Minimum Hours to Prevent Ink Viscosity Decrease
Following is precautions when repeating operation start and stop.
The IJ printer automatically cleans the circulation system with makeup (solvent) when stopped to prevent ink from sticking. At this
time, the amount of solvent in the ink tank increases and the ink viscosity decreases. On the other hand, when the IJ printer is
operated, the ink viscosity is automatically adjusted for stable operation. However, if the main tank is filled with a large amount of
solvent by repeating "shutdown (automatic cleaning) in a short time", the ink viscosity may not be controlled normally. To prevent
this, operate for a certain period of time (eject ink from nozzle) after starting operation. The required operating time depends on the
ambient temperature and ink model.
[Note] For stable operation, limit the number of times "Shutdown" to be performed to two at a time.
[ For example]
The table on the right showing the minimum required
operating time is an example. In this case, if IJ printer
is running under 20 ℃ ambient temperature, the
required operating minimum hours is around 1 hour,
after starting operation.
[Remark] "Required operating minimum hours" depend on Ink model.
Please refer to the attached document for each ink.
In case of using "Rotary encoder" in order to match production speed and printing speed, "Excitation frequency"
information is necessary(*1). This value depends on ink model, nozzle size and setting. Please see "Operating
management" screen, and confirm the value of excitation frequency. In addition, applicable makeup and other information
are shown also on the screen.
(*1) UX2
[Technical Manual] 4.3.2 Speed Matching Function Using Rotary Encoder
UX/RX2 [Technical Manual] 4.3.2-3 Method of calculating the conditions which allow product speed matching
UX/RX2 style screen
Supplementary Information
UX2 style screen
Precautions (Basic precautions)
(This graph is example)
Classic style screen
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