HP 2820 - Manual (Page 221)

HP policy on non-HP supplies
Hewlett-Packard Company cannot recommend the use of non-HP supplies, either new or
remanufactured. Because they are not HP products, HP cannot influence their design or
control their quality. Service or repairs required as a result of using a non-HP supply will not
be covered under the printer warranty.
When you insert a supply into the device, the device will inform you if the supply is not a
genuine HP supply. If you insert a genuine HP supply that has reached the low state from
another HP device, the device identifies the supply as non-HP. Simply return the supply to
the original device to reactivate the HP features and functionality.
Resetting the printer for non-HP supplies
When you install a non-HP print cartridge or imaging drum, the control panel displays the
Unauthorized message . In order to print with this supply, you must press
E
NTER
the first
time you install this non-HP supply.
CAUTION The device will not stop printing when this type of supply is empty. Printer damage could
occur if the device prints with an empty non-HP print cartridge or imaging drum. See
Hewlett-
Packard limited warranty statement and Print Cartridge and Imaging Drum Limited Warranty
Statement .
ENWW HP policy on non-HP supplies 205