HP OfficeJet Pro 7740 - Manual (Page 37)

5. Adjust the paper-width guides and the paper-length guide until they touch the edge of the stack of
paper.
6. Check the input tray area inside the printer. If there is paper, remove the paper.
7. Reinsert the input tray into the printer.
8. Pull out the output tray extension.
Load an original on the scanner glass
You can copy, scan, or fax originals by loading them on the scanner glass.
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