Epson dfx-8000 User Manual

Even in 

 graphics mode, one 8-inch line can accommodate

480 columns of graphics;   quadruple-density, almost  2OOO columns
can fit on the same g-inch 

 Since the &inter does not use

decimal numbers larger than 

the graphics mode command uses

two numbers for reserving columns.

To figure 

 and 

 divide the total number of columns by 256.

The result is 

 the’ remainder is 

 Since  the command is set up

for two numbers, you must supply two even if you need only one.
When you need  fewer 

 256 

 just make   the number

of 

 you are 

 and make 

 zero. For example, if

you wish to 

 

 

 of 

 data; 

should be 

  

 + (6   256).

If you are using a programming language with MOD (modulus) and
INT (integer) functions, you can use the following formulas to

   

 in 

     the 

 

   columns:

   

 

 

The 

 will’ 

  the 

 of 

 

 ‘by   and

 as 

 

 no titter 

 

 

 

 This means

that you must be sure to 

 

 

   

 data or

the printer will stop and wait for more data and will seem to be
locked. If, on the other hand, you supply too much graphics data,
the excess 

 be interpreted and printed as regular text.

Printing 

 patterns

The first 

 is just a’ s&&program to show you how the

graphics command, column reservation numbers, and data can be
used in a BASIC program.