HP 2300n HP Business Inkjet 2300 - User Guide - Page 60

Cleaning the printhead contacts

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CAUTION Cleaning the printhead contacts If lines or dots are still missing from printed text or graphics after you have cleaned the printheads, the printhead contacts might be dirty. HP recommends that you clean the printhead contacts only after you have cleaned the printheads. Printhead contacts contain sensitive electronic components that can be damaged easily. To clean the printhead contacts 1 Turn the printer on. 2 Lift the top cover and the ink cartridge cover. 3 To open the printhead latch, lift it from the rear, and then pull it forward and down to release the hooks from the metal catch bar. 3 4 4 Pull the latch up and back to uncover the printheads. 5 To remove a printhead, place your index finger in the loop of printhead's handle, and gently pull up until the printhead releases from the carriage assembly. 6 Using a soft, dry, lint-free cloth, carefully remove any ink from the contact pads on the printhead and inside the printhead slot in the printer. contact pads CAUTION ink nozzles Do not clean the ink nozzles on the bottom of the printhead. 7 Reinsert the printhead into its color-coded slot. Press down firmly on the printhead to ensure proper contact. 8 Repeat steps 5 through 7 for the remaining printheads. 5-2 ENWW

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5
-
2
ENWW
Cleaning the printhead contacts
If lines or dots are still missing from printed text or graphics after you have cleaned the
printheads, the printhead contacts might be dirty.
CAUTION
HP recommends that you clean the printhead contacts only
after
you have cleaned the
printheads. Printhead contacts contain sensitive electronic components that can be damaged
easily.
To clean the printhead contacts
1
Turn the printer on.
2
Lift the top cover and the ink cartridge cover.
3
To open the printhead latch, lift it from the rear, and then pull it forward and down to
release the hooks from the metal catch bar.
4
Pull the latch up and back to uncover the printheads.
5
To remove a printhead, place your index finger in the loop of printhead’s handle, and
gently pull up until the printhead releases from the carriage assembly.
6
Using a soft, dry, lint-free cloth, carefully remove any ink from the contact pads on the
printhead and inside the printhead slot in the printer.
CAUTION
Do
not
clean the ink nozzles on the bottom of the printhead.
7
Reinsert the printhead into its color-coded slot. Press down firmly on the printhead to
ensure proper contact.
8
Repeat steps 5 through 7 for the remaining printheads.
4
3
ink nozzles
contact pads