- HP All-in-One Printer Manual

Q2431-90912 Chapter 7 Troubleshooting 233
Miscellaneous
Are any non-HP components installed? Check for any non-HP
components (print cartridges, memory modules, and EIO cards)
installed in the printer and remove them. Hewlett-Packard
recommends the use of HP components in its printers.
Remove the printer from the network, and make sure that the
failure is associated with the printer before beginning
troubleshooting.
Table 37. Initial troubleshooting checklist (continued)