Remedy: Deactivate the finisher front door switch.
Code: Z20
Description: 3-fold tray not loaded
Causes: 3124 The 3-fold tray is not loaded (it is pulled out).
Remedy: Load the 3-fold tray.
Code: Z21
Description: Base cover open
Causes: 1095 Internal feed paper jam release door open
Remedy: Close the jam release door on the base.
Code: Z22
Description: Front cover open (BP lower limit)
Causes: 1255 The front left cover is open when the belt platen is at the lower limit position. 1256 The front right cover is open when the belt platen is at the lower limit position.
Remedy: Close the front cover (left or right).
Code: Z23
Description: Switchback cover open (BP lower limit)
Causes: 1257 The switchback cover is open when the belt platen is at the lower limit position.