MIMAKI CJV30-100BS, Operation Manual

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Changing the Set Values of the Heaters
3-15
3
Ex
tended F
unctions
– Printer –
When the Heater Temperature Does Not Reach the Preset One
When the heater temperature is too low or the ink capacity (ink limit) is too small, printing failures, such as
beading and banding, may occur.
Beading is a phenomenon that adjacent dots attract and stick to one another. Beading causes speckled patterns
or stripes along printing passes (banding).
Example of Beading
The area in the vicinity of 100% magenta looks fine. Generally, the area in the vicinity of 70-100% single color is
easily affected by the unevenness of a media feeding rate. The print shown here, free from unevenness of color
in the vicinity of 100% magenta area, shows that media-feeding has been adjusted appropriately.
In the blue area (100% m 100% cyan), however, speckled patterns and banding have occurred. This
banding is a result of beading. When the heater temperature is low or the ink capacity (ink limit) of a medium is
small, the first dot does not solidify before the second dot lands on the medium. As a result, dots stick to one
another and unevenness or banding occurs.
In order to prevent beading, it is recommended to raise the heater temperature to increase the ink capacity (ink
limit) of the medium, to adjust the ink volume per dot for the medium, to increase the number of printing passes
and decrease the ink amount for one shot, and/or to gain time by scan wait.
Change the medium if none of the above-mentioned measures works to prevent beading.
Fine looking print
Print with banding