February 2013
3-29
ColorQube® 9303 Family
IQ 5, IQ 6
Image Quality
YN
Perform ADJ 91.1 Printhead Attachment Check.
Perform SCP 5 Final Actions.
Perform dC972 option 5, Y-dot position correction. Print TP 1 Initial Test Print Pages. Evaluate
the text page only and compare with IQS 6.
The text page is good.
YN
Perform dC972 option 1, Printhead Uniformity. Option 1 runs options 1 through 5, before
proceeding to run option 5, Print TP 1 Initial Test Print Pages. Evaluate the text page only
and compare with IQS 6.
The text pages are good.
YN
Perform dC972 option 5, Y-Dot Position Correction. Print TP 1 Initial Test Print
Pages. Evaluate the text page only and compare with IQS 6.
The text pages are
good.
YN
Install new printheads as necessary, PL 91.20 Item 2 or PL 91.25 Item 2.
Perform SCP 5 Final Actions.
Perform SCP 5 Final Actions.
Perform SCP 5 Final Actions.
IQ 6 Missing Ink or Grainy Output RAP
Use this RAP when the output has white spots or a grainy appearance, Figure 1.
A grainy appearance can be caused by:
• Image processing on certain postscript print files that contain transition areas between
greys and near-greys.
• Inherent graininess in prints.
• Missing pixels (known as dropout). This is most visible in halftone regions and is most
prevalent on duplex prints and / or rough / textured media.
NOTE: Media containing cotton, linen or parchments can exhibit dropout due to surface tex-
ture. Areas of missing ink on envelopes that outline the seams or flaps is normal.
NOTE: Opening the paper tray or switching from SEF to LEF prints can cause dropout on the
next duplex print. Reprinting the job will normally resolve this issue.
Ensure IQ 1 Image Quality Entry RAP is performed before starting this RAP.
Figure 1 Duplex dropout example
C
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