//BIN, bin-ID

The BIN directive is used to specify a bin or paper tray, and understands the same bin names or identifiers (UPPER, LOWER, MIDDLE, MANUAL, AUTO, ENVELOPE, ENVMANUAL, LARGEFMT, SMALLFMT, LARGECAPACITY, FORMSOURCE, USER<#>, <Bin ID Number>).

BIN is one of the GDI printing directives with a Printer Init File Equivalent. Unlike other such directives, BIN can occur at any point in the print file. If printing has already begun when BIN is encountered, it will force a page break at that point, after which paper will be selected from the newly specified bin.

There is no apparently straightforward way to determine the proper BIN names for a particular printer. See the discussion about this in the Printer Configuration section of the A-Shell Setup Guide for some tips on how to go about it.