Why is my printer slower than it used to be?

Why is my printer slower than it used to be?

Check the printer output of your analyser is set to IRP-2, if this is correct please charge the batteries in the printer. To change the printer output, rotate the dial of the analyser to menu, select set up by pressing the send key. Press the pump key until the orange lights highlight PRINTER then press the send key. The current printer output is now shown, to change the printer output use the pump key to select the correct output.

The outputs are:

KMIRP

KANE IRP-2

SERIAL

And wireless if fitted.