MX-M550U, MX-M620U (serv.man8). Administrator Settings Guide - Sharp Copying Equipment User Guide / Operation Manual. Page 19

This setting is used to set the initial image shift width
(tab width) for tab copying.
The width can be set from 0 mm to 20 mm (0" to 5/8")
in increments of 1 mm (1/8").

This setting is used to set the maximum number of
copies that are allowed per original.
Any number from 1 to 999 can be set for the maximum.
The maximum number of copies is initially set to 999.

This setting is used to prohibit the deletion and
changing of copy settings stored in job programs.

This setting is used to disable the use of the bypass
tray when making duplex copies.
The bypass tray is often used to feed label sheets,
transparency film, and other special papers for which
two-sided copying is prohibited. If one of these special
papers enters the reversing unit, a misfeed or damage
to the unit may result. If special media for which
two-sided copying is prohibited is often used, it is
recommended that you enable this setting.

This setting is used to disable the auto paper selection
function.
When this setting is enabled, paper that is the same
size as the original placed on the document glass or in
the automatic document feeder is not automatically
selected.

Tab width