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Daily Management and Maintenance > Improving and maintaining of print quality
Improving and maintaining of print quality
Preventing nozzle clogging
If the machine has not been used for a long time, the print head nozzles may be clogged up and white streaks may
occur. In order to maintain print quality, this machine has a function to execute head cleaning automatically after a
certain period of time. You can also set the cleaning strength and execution interval of the print head.
In addition, depending on the contents (resolution or type of image), paper type, density, and color, nozzles of a specific
color may be clogged even after printing. To avoid this, you can set the interval for performing head cleaning during
printing.
1
[Home] key > [...] > [Professional Settings] > [U730 Set Head
Cleaning] > [01 Purge] > [01 Normal] or [02 Strong]
2
[Start] key > [Stop] key
3
[02 Time Interval] > select time interval to perform purge >
[Start] key
You can select [15min], [20min], [30min], and [60min] as the time interval. The default setting
is [30min].
Configuring Operation after Warming Up
When turning on the machine, you can choose to start printing immediately with priority for printing, or wait until the
machine enables printing with quality priority.
1
[Home] key > [...] > [Professional Settings] > [U733 Set Warm
Up Mode].
2
Select an item to adjust > [Start] key
The items to adjust are as follows.
When [01 Normal] is selected, print head cleaning is performed 12 hours after the last print.
When [02 Strong] is selected, print head cleaning is performed 6 hours after the last print.
As the execution interval shortens, the number of cleanings increases, and the
amount of ink consumption also increases.
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