When printing on envelopes (with triangular flap) and ejecting them to Finisher SR5050 or SR5060, set the Z-fold support tray that is provided with the finisher on the finisher shift tray.
Press the [Suspend/Resume] key that is located on the left side of Finisher SR5050 or Booklet Finisher SR5060.

Remove the paper that has been ejected to the finisher shift tray.
Pull out the extension tray on the finisher shift tray.

Attach the Z-fold support tray by inserting the protrusions on its underside into the holes on the finisher shift tray.

Press the [Suspend/Resume] key to resume printing.
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When the Z-fold support tray is attached, the stack of the output sheets may not be aligned as cleanly as when the support tray is not attached.