User`s manual

7–122 Digital Emulation
Block Characters
The block character sequences define the parameters of the block characters,
initiate the generation of block characters, and return the printer to normal
printing. The following subsections describe how to enact these features.
Setting Block Character Parameters (DECBCS)
ASCII Code ESC [ P1; P2;...P5‘r
Hex Code 1B 5B P1 3B P2 3B...P5 27 72
Dec Code 27 91 P1 59 P2 59...P5 39 114
Purpose Defines the parameters for block characters.
Discussion The Pn parameters define the height, width, background color, and
character set of the block characters. If any parameters are illegal, the
entire sequence is ignored. When block character parameters are defined,
they remain valid until:
• A new valid Block Character Select Parameter sequence is sent
• A reset command occurs (setting the default values)
• The default values are set by powering–up
The character exists entirely and centrally within the character cell. The line
feed distance is equal to the basic cell height multiplied by the vertical
magnification factor. The magnification values specified in P1 and P2 are
operated on the basic character cell.
Block character parameters are set according to the following choices.
• P1 defines the horizontal magnification factor.
P1 Function
Magnification of 2 (default)
0/missing
Magnification factor of 156 used
Defines the horizontal magnification factor
1–156
>156