Dell 1710 User Manual page 52

What this light sequence means:
The printer is flushing corrupted print data.
The printer is processing data or printing pages, but the resolution of a
page in the current print job is reduced from 600 dots per inch (dpi) to
300 dpi to prevent a memory full error.
What you can do:
Wait until the operator panel returns to Ready to print other jobs.
Press and release Cancel
Press and hold Cancel
What this light sequence means:
The printer is not ready to receive or process data, or the printer ports are
offline.
What you can do:
Press Continue
Press and release Cancel
Press and hold Cancel
to cancel the print job.
to reset the printer.
to return to the Ready or Busy state.
to cancel the print job.
to reset the printer.