2.Make sure the printer and the 500-Sheet Lower Paper Cassette Unit are facing the same way. Lift the printer and align the pins on the cassette unit with the holes on the bottom of the printer. Then, lower the printer until it rests securely on the cassette unit.
To verify that the 500-Sheet Lower Paper Cassette Unit is correctly installed, print a status sheet. See “Testing the Printer Connection” on page 16.
Confirm that the 500-Sheet Lower Paper Cassette Unit is listed under the Hardware Configurations section of the status sheet as one of the available options. If it is not listed on the status sheet, try reinstalling it.
