Sharp AR335 - On touch pad, touch "Custom settings", touch "key operator", enter the Key operator code (or 00000) on the key pad, press "Total Count" on the touch pad.  Meter will be displayed. 

Sharp AR336 - Lower left corner of the key pad, hold copy button down, reading appears on the screen.

Sharp AR405 - On touch pad, touch "Custom settings", touch "key operator", enter the Key operator code (or 00000) on the key pad, press "Total Count" on the touch pad.  Meter will be displayed.

Sharp AR505 - Hold down copy key

Sharp AR507 - Hold down copy key

Sharp C150A - Press copy button and print button - if that does not work go to custom settings / key op mode / total count

Sharp C160A - Press copy button and print button - if that does not work go to custom settings / key op mode / total count

Sharp C250A - Press copy button and print button - if that does not work go to custom settings / key op mode / total count

Sharp AR-157 - Hold down clear button