HP 4 FAMILY - Manual (Page 70)

method can be used for parsing characters in the Shift-JIS
encoding specification.
If the value field is 38, character codes in the range
0x80-0xFF are processed as the first byte of a two-byte
character. The following byte is processed as the second
byte of the two-byte character. All character codes outside
this range are processed as one-byte values. This
method can be used for parsing Asian eight-bit encoding
specifications, such as the Big Five and TCA encoding
specifications (Taiwan), and KS C 5601-1992 and GB
2312-80, which can be either 7 or 8 bit.
Character Text Path
Direction Command
This command allows the user to vertically rotate text for
use in vertical writing applications.
?&c#T
# = 0 - Horizontal printing
–1 - Vertical rotated printing
Default = 0
Range = 0, 1
Using ?&c0T, the printer’s current active position (CAP)
advances left to right, and linefeed advances top to bottom
with horizontal, upright characters.
Using ?&c–1T, the following actions occur:
Full-width characters in large fonts are rotated
counter-clockwise 90 degrees (“vertical rotated”
characters).
Vertical substitutes are made for characters which
change their appearance, orientation, or positioning
when written vertically.
All other characters are unaffected by this setting.
The vertical-rotated printing mode (?&c-1T) has the
effect of transforming a portrait page with horizontal
text into a landscape page with vertical text. The PCL
Print Direction command can be used to achieve other
text orientations.
2-34 Printer-Specific Differences