HP Business Inkjet 1000 Printer - Manual (Page 42)

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Maintaining ink cartridges and printheads 39
Cleaning the printhead contacts
To find out which printheads are compatible with your printer, see Finding supplies part numbers .
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: Clean the printhead contacts only after you have attempted to clean the printheads
automatically. See Cleaning the printheads . Printhead contacts contain sensitive electronic components
that can be damaged easily.
To clean the printhead contacts
1. Turn the printer power on, and then lift the printing supplies cover.
2. Lift the ink cartridge cover, and then lift the printhead cover.
3. Wait two or three seconds, and then unplug the printer power cord.
4. Lift to open the printhead latch.
5. Lift up the handle of the printhead and use it to pull the printhead straight up and out of its slot.
6. Carefully remove any ink from the contact pads on the printhead using a dry cotton swab or a soft,
dry, lint-free cloth that will not come apart or leave fibers behind.
CAUTION: Only wipe the contact pads. Wiping the nozzles (located on the underside of the printhead)
can cause severe damage to the printhead.