(57) A tray (21), for use in an office machine, such as in particular a photocopier (24),
prearrangeable for selectively containing reams (22) comprised of a plurality of sheets
(23), and having formats corresponding to the format of the sheets comprising them.
The tray (21) is provided with a frame (31); a support plate (32), fulcrum-mounted
on the frame (31) and upon which each ream (22) is supported, when it is laid in the
tray (21); a ream-former (33) sliding along the frame (31) for laterally adapting,
depending on the format of each ream (22), the plan dimensions of a seat (51) intended
for accommodating the ream (22); and a regulating device (36), connected to the ream-former
(33), capable of automatically regulating, in relation to the position of the latter
and thus to the format of the ream (22), an elastic force applied on the support plate
to push the ream (22) against a sheet pick-up device (26), fitted on the photocopier
(24). Accordingly, the pressure acting between the sheet pick-up device (26) and a
front portion of the ream (22) is adapted to the format of the latter.
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