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Internally Leaking Printhead Checkout
Procedure
Evaluate the colour bands test page,
TP
NOTE: Since the printhead is leaking internally, no ink will be visible externally on the print
head or on the printer.
If massive amounts of ink are missing in the process direction in one printhead similar to
12, check for a leaky printhead. Note that the missing ink will generally affect a primary colour
and its associated secondary colours. This issue most commonly shows up in black and yellow
meaning the missing ink will also show up in the red and green bars. Purging the printhead to
recover the missing jets will not resolve this issue. Often the missing ink will be noticed on the
colour bands print on
TP 26
but not on the jet tests pages printed from dC968. If this defect is
observed then install a new printhead,
PL 91.20 Item 2
Figure 12 Printhead with internal leak
ColorQube® 9303 Family
26. Check for the following defect:
and
PL 91.25 Item
2.
IQ 10 Incorrect Margin, Misregistration or Skew RAP
Use this RAP to determine the source of margin, misregistration or skew,
Ensure
IQ 1
Image Quality Entry RAP is performed before starting this RAP.
Figure
Initial Actions
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to
death or injury. Moving parts can cause injury.
•
Perform
dC608
Document Feeder Registration.
•
Perform
dC609
Document Glass Registration.
Procedure
Make 3 prints of TP 2, cyan solid fill test page
to
IQS 1
Registration and Skew. The prints are skewed.
February 2013
3-41
Figure 1 Image skew
WARNING
GP
14. Disconnect the power cord. Electricity can cause
(TP 2 to TP
10). Check the prints for skew, refer
Figure
1.
Image Quality
IQ 9, IQ 10
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