Xerox 4213 MICR MRP User Guide

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FONTS AND CHARACTER SETS
In the Twinax environment, there are 2 methods to select GFIDs
in the text file. 
Example
GFIDs can be selected with the Set FID Through GFID (SFG)
DCA command from the host.  (Refer to page 2-55 for more
information on the command parameters.)
The command format is:
2B  D1  07  05  gfgf  fwfw  fa
The  gfgf parameter specifies the GFID, which determines the
pitch of the font to be used.  fwfw specifies the font width, but
it is not used.  A mismatch between gfgf and fwfw may cause
data loss or other unexpected results.   fa specifies fixed pitch or
proportional spacing.
2B  D1  07  05  000B  0090  01
000B, the gfgf field in the above command, specifies a GFID of
11.  If the factory defaults have not been changed, Titan10M is
selected.
XCTO font selection
XCTO combines the font selection process for SCS and DCA
which allows you to customise the Xerox fonts which are
automatically selected when font parameters are changed
through the data stream. This is achieved by a two stage process
which  is described below.
Stage 1: SCS font attribute to GFID table:
Stage 1 assigns a GFID number for every font attribute
combination as shown in table 5-3.  These are not unique font
identifiers as orientation has not yet been specified.
5–6
XEROX COAX/TWINAX OPTION (XCTO) PROGRAMMER REFERENCE