HP Designjet 4520 Printer series User Manual
Page 109
4.
Close the carriage interconnect wiper, trapping the sponge in place.
5.
Open the printhead carriage latch and extract the printhead that has the problem, as indicated on
the front panel. See
.
6.
Insert the carriage interconnect wiper into the printhead slot at the back. Wipe the electrical contacts
by inserting the tool between the electrical connections at the back of the slot and the steel spring
with the sponge facing away from you and towards the electrical contacts. Try to avoid picking up
any ink deposit which may have accumulated on the bottom surface of the slot.
CAUTION:
If the carriage is left in the central part of the printer for more than seven minutes. it
will try to move back to its normal position in the right-hand end.
7.
Rub the sponge against the contacts with a light force along the entire depth of the flex connector
as allowed by the mechanical stop on the tool.
ENWW
Clean a printhead's electrical connections
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