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Troubleshooting > Troubleshooting When Printing Image
9
Clog up nozzle correction
Nozzle Correction (Chapter 18) in Operation Guide
In case that no improvement is observed, contact your dealer or service representative.
Vertical band (Clogged up nozzle)
1
Check ink
"Troubleshooting When Printing Image" > "Vertical void line, band or stripes" (Chapter 19)
in Operation Guide
In case that no improvement is observed, then go to next step.
2
Execute print head cleaning
Ink get dried in nozzle. Bubble is in nozzle. Paper dust or foreign material is on nozzle.
1 Load SRA3/Ledger size paper.
2 [Home] key > [...] > [Professional Settings] > [U744 Head Cleaning] > [02 Check]
A nozzle check pattern is printed.
3 Align the mark on the chart arrow with the mark on the upper left corner of the platen glass.
As shown in the illustration, place the pattern on the glass platen with the printed side down
and the edge with the arrows toward the back.
The printed position of the arrows in the nozzle check pattern may be in from the edge,
depending on the size of the pattern. Regardless of the position of the arrows, place the
pattern in the upper left corner of the glass platen.
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