Service Tests
4-27
HP DesignJet CP Series Printers
D14. Printhead Continuity
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Enter
Diagnostics
D14 Printhead Cont.
2
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The values shown on the frontĆpanel for all Printheads should be
0
. If a
different value is shown then that Printhead has a continuity problem.
Try the followingto solve the problem:
1
DO NOT replace any parts.
This will cause extra problems
. Remove
the Printheads and clean the flex contacts on the Carriage and the
Printheads. Reseat the Printheads and try the test again.
2
Even if one of the Printheads failed the Printhead Continuity test, you
must remove
all
the Printheads from the Carriage and try installing
them
one by one
. Before installingeach Printhead, check the continuity
of all four Printheads. The frontĆpanel should display a 3ffff / 3fff result
for each Printhead that is not inserted and the original values (the value
that was displayed before the Printhead was removed) for the Printheads
when they are inserted. If you get a value that is different than 3ffff / 3fff
when the Printheads are removed then you must perform step
1
again. If
you get the same results after repeating step 1, then the carriage is
damaged. Replace the Carriage Assembly
page 8Ć42. When you insert
each Printhead, the values
should change only
for that Printhead. If
the values of other Printheads also change, then the problem is the
Printhead itself and
not
the actual Printer. In this case you
must
replace the complete Ink Delivery System of the color that failed.
3
If you continue getting the original value (the value that was displayed
before the Printhead was first removed) then you
must
replace the
complete Ink Delivery System of the color that failed and try the test again.
4
As a
last resort
, replace the Carriage Assembly
page 8Ć42.
4
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Page 96: ...4 12 Service Tests HP DesignJet CP Series Printers Encoder Strip Failure D In this case ...
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Page 123: ...Service Calibrations 5 7 HP DesignJet CP Series Printers D D D D D D D ...
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Page 295: ...Removal and Installation 8 83 HP DesignJet CP Series Printers ...
Page 298: ...8 86 Removal and Installation HP DesignJet CP Series Printers Figure 28 Pincharm Assemblies ...
Page 301: ...Removal and Installation 8 89 HP DesignJet CP Series Printers Figure 29 Interconnect Cables ...
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Page 310: ...9 6 Preventive Maintenance HP DesignJet CP Series Printers ...
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Page 317: ...Functional Overview 10 7 HP DesignJet CP Series Printers ...
Page 318: ...10 8 Functional Overview HP DesignJet CP Series printers ...
Page 319: ...Glossary 1 HP DesignJet CP Series Printers ...