HP 510PS manual Load a smaller sheet that satisfies this minimum requirement

	Front-panel messages
Message	Explanation and action
Paper not present.	The paper axis calibration routine has been triggered without having
Load paper to print calibration	paper loaded.
pattern	Load paper; see Advance calibration for details of the routine.
Paper too big to scan the	During paper loading for the Calibration routine, the printer has
pattern after printing it	detected that it will not be able to load the paper when it will be
	needed for scanning. The minimum size required for the print is
	65 cm (25 in) long and 50 cm (20 in) wide.
	Load a smaller sheet that satisfies this minimum requirement.
Paper too big	While loading paper into the printer (roll or sheet), the printer has
Press ENTER to retry	found that it is either too wide or too long (sheet only) to be loaded
Press CANCEL to abort	properly.
	Press the Enter key to load smaller paper, or the Cancel key to stop
	the load.

Paper too small for a diagnostic print

The Troubleshooting utility has found that the single sheet loaded in the printer is too small for a Diagnostic Print.

Load a roll of paper, or a sheet that is A3 size or larger.

Paper too small	The paper loaded is not big enough to contain the alignment pattern.
to align printheads	Unload the paper (select Unload roll or Unload sheet from the
Load bigger size to	Paper menu) and then load paper that is large enough—at least A4/
align	Letter-size in landscape mode for Standard alignment, or A3/B size
Press ENTER to continue	in landscape mode for Special alignment.