Epson EPL-7500 User Manual page 13

The Lower paper cassette (C812051 or C812061)
The optional lower paper cassette fits directly beneath the printer
and feeds up to
cassette expands your standard paper cassette's 250-sheet capacity
to sheets.
500
The face-up output tray (C812071 or C812072)
The face-up output tray delivers paper face-up for immediate
viewing of your printed output. Also use the face-up output tray
for printing that requires a straight-through paper path, such as
labels, overhead transparencies and heavy paper.
sheets of paper into the printer. The optional
250
Introduction 3