IP-7900-02/-03/7700-02/03 Advanced Operation Guide
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With inkjet printers, a horizontal banding may appear between the bands, which are the areas printed by one
scan. This symptom is called as banding.
The banding is caused mainly by setting the media advance compensation improperly. With the proper
compensation, the bands are linked without gap. However, with the larger compensation the bands are linked
with gaps, showing white lines, while with the smaller one the bands overlap, showing black lines.
The banding is also caused in the following cases.
- The ink dries so slowly.
- The media advance changes considerably depending on the print head scan.
A band of print
A band of print
A band of print
A band of print
Print head
Print head
A band of print
A band of print
Print head
Correct media advance
White banding at incorrect media advance
The bands’ gap
shows a white
banding.
The bands’ gap
shows a white
banding.
The bands’
overlap shows
a black banding.
The bands’
overlap shows
a black banding.
Black banding at incorrect media advance
The Smart Pass Technology is the function to reduce this banding problem.
With the Printer’s operation menu, this function is available by selecting
the LOW, MEDIUM, HIGH, FINE GRAIN, or HIGH, LESS SPRAY at "#IMAGE
IMPROVE" of MEDIA REG MENU.
With Smart Pass Technology, the bands are printed with overlapping
even when the media advance compensation is proper. In the LOW, the
overlapping part is processed with the SIIT’s unique algorithm so that the
part is not notable where the difference between the overlapping part and
the rest are minimized.
The modes MEDIUM, HIGH, FINE GRAIN, and HIGH, LESS SPRAY enlarged
the overlapping parts and added the function to reduce the color density irregularities and white lines. This
function allows the print performance with higher quality and more stabilization than the previous ones.
NOTE
(1) In the mode 1, with some print data, the overlapping part is light or blurred. Select the MEDIUM, HIGH, FINE GRAIN, or HIGH,
LESS SPRAY to reduce this symptom.
(2) In the HIGH, LESS SPRAY, the carriage speed is low.
A band of print
Print head
Smart pass technology: ON
Smart pass technology
