HP Deskjet 6540 Color Inkjet Printer - Manual (Page 141)

Preparing to clean
1. Press the Power button to turn on the printer, and then raise the printer cover.
2. Remove the print cartridges and place them on a piece of paper with the nozzle
plate facing up.
1. Nozzle plate
Caution: Do not leave the print cartridges outside the printer for more
than 30 minutes.
Cleaning instructions
1. Lightly moisten a cotton swab with distilled water and squeeze any excess
water from the swab.
2. Wipe the print cartridge copper contacts with the cotton swab.
Caution: Do not touch the print cartridge ink nozzles. Touching the ink
nozzles will result in clogs, ink failure, and bad electrical connections.
1. Clean only the copper contacts
HP Deskjet 6500 series printers
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