IBM 6400 Programmer's Reference

IM Image Command Set
Underscore (USC)
This control identifies text the printer underscores at the baseline of the current
line. The underscore prints using the same print quality as the text.
A USC command with a bypass value of 00 ends underscore mode.
Table 70. Underscore
Byte Value Description Error Code
0-1 X'2BD3' Text Control Escape Sequence
2 X'03' Length X'021E..01'
3
X'76'
X'77'
Underscore
Unchained
Chained
4
Bits 0-3
Bit 4 0
1
Bit 5 0
1
Bit 6 0
1
Bit 7 0
1
X
'FF'
Bypass Identifiers
Reserved
Underscore white space from
Relative Move Inline
Bypass white space from
Relative Move Inline
Underscore white space from
Absolute Move Inline
Bypass white space from
Absolute Move Inline
Underscore white space from Space
or Variable Space Character
Bypass white space from Space
or Variable Space Character
Bypass Treat Bits 0-6 according
to their set values
No Bypass Treat Bits 0-6 as if
their values are set to zero
No Bypass in Effect
IM Image Command Set
The IM Image command set contains the commands and data controls for
presenting image data on a logical page, page segment, or overlay area on the
physical medium. The following commands comprise the image command set:
The following pages describe the image command set.
Command Code Description
WIC D63D Write Image Control
WI D64D Write Image
END D65D End
Chapter 3. IPDS Commands Reference 75

IBM 6400 Specifications

General

Brand	IBM
Model	6400
Category	Printer
Language	English