HP Deskjet 842c Printer - Manual (Page 37)

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Using and Caring for Your Print Cartridges 3
Manually Cleaning the Print Cartridges
1 Press the Power Button to turn the printer on, then lift the top cover.
2 After the print cartridges move to the center and stop, unplug the power cord
from the back of the printer.
Keep new and used print cartridges out of the reach of children.
3 Remove the print cartridges and place them wide side down on a piece of
paper.
Do NOT touch the print cartridge ink nozzles or copper contacts. Touching
these parts will result in clogs, ink failure, and bad electrical connection.
Also, do NOT remove the copper strips; these are required electrical
contacts.
4 Dip a clean cotton swab into distilled water and squeeze any excess water from
the swab.
5 Clean the face and edges of
the print cartridge as shown.
DO NOT wipe the nozzle
plate.
6 Inspect the cartridge for
fibers on the face and edges.
If fibers are still present,
repeat the cleaning process.
7 Repeat the cleaning process for the other print cartridge.
Once you’ve removed the print cartridges, make sure that they are not
outside of the print cartridge cradle longer than 30 minutes.
Warning
Caution
Do NOT clean
nozzle plate
Clean
Caution