How Do I Clean The Electrical Contacts - HP DesignJet 2500CP Service Manual

Refill Avoidance Tips
Printer:
1 Try to top off" printheads before large prints with Refill Now" option in
Front Panel (Image Quality / Printhead Service / Refill now). If a refill
happened at the end of the last print (usually happens with big prints),
this is not necessary.
2 If you have just canceled a print, you may need to use the refill now"
option to guarantee the maximum ink available for the next print.
Print Composition Tips:
1 Don't try to nest more than 15 ft^2 of prints.
2 If the print is lighter in color at one end, rotate print so that it is the last
part to be printed. Refills are less noticeable in light prints.
3 If possible, lighten background colors or use a gradient in place of a solid fill.
4 Textured areas make refills less noticeable than flat" color areas.

How Do I Clean the Electrical Contacts?

The problem.
The printer fires drops by sending electrical signals from the printhead carriage
to the printhead through the electrical contacts present on the carriage and on
the printheads. The problem is that when you load the printheads into their
stalls, sometimes some ink goes over the carriage electrical contacts, and when
the printhead is installed over the printhead electrical contacts. When the
printer prints, some ink goes to the bottom of the electrical contacts. This causes
electrical continuity problems that can be fixed very easily.
The solution.
A new tool has been created especially to clean the electrical contacts and is
called the Ink Cleaner (Part Number C6247A includes the instructions).
Troubleshooting
HP DesignJet CP Series Printers
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