HP Deskjet 990cxi Printer - Manual (Page 52)

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Problems?: Troubleshooting Tips
The Resume Light is flashing.
(continued) There may be a paper jam and the
Automatic Two-Sided Printing
Module is attached. 1 Turn your printer off.
2 Press the button on top of the Automatic Two-Sided Printing Module
and lower the access door.
3 Pull the jammed paper out of the Module, then close the access door.
4 Turn your printer back on.
5 Print your document again.
You may be printing a two-sided
document manually and the first
side has finished printing. 1 Follow the on-screen directions for how to insert the paper.
2 Press the Resume Button .
The Print Cartridge Status Light
is flashing.
The top cover may be open. Close the top cover.
There may be a problem with one
of the print cartridges. See “Print Cartridge Status” on page 35.
What do the flashing lights mean?
What is the problem? Possible cause To solve the problem…