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With any image application carried out pass by pass, any characteristic of the applying print heads will also always be visible in the print image.
As soon as this effect becomes visible and thus impairs the image quality, it is referred to as “banding” or “bleeding”.
The banding effect often results from a combination of the following problems:
nozzles that do not fire or fire at an angle
insufficient head alignment or poor positioning
lack of or poor balancing of droplet masses of cooperating nozzle rows
Bleeding – an uncontrolled run of ink – usually occurs when too much ink is applied per time.
This can be reduced and often avoided altogether through advanced application techniques or the use of active drying.
To avoid the visibility of the banding effect and to improve print quality and drying behavior, the CLUSTERJET software uses highly efficient drop-setting methods whose stochastic behavior is not subject to any describable order.
Various multipassing, weaving, random stepping and multilayer processes can be optionally used for band-by-band ink application.
The combined use of these processes leads to the avoidance of a visible application characteristic.