Asynchronous Terminals and Printer Processes Programming Manual
PRINTER PROGRAMMING CONSIDERATIONS
Programming Considerations for the Model 5508 Printer
Specify the number of lines in the form with SETMODE 25 as an
integer in the range of 0:126. The default for this setting is
66 lines because the most common form size is 11 inches with 6
lines per inch.
Set a vertical tab stop with SETMODE 26 by specifying the line
where the tab stop is to occur. With the defaults of single
spacing and 66 lines per page, there is a vertical tab at each
line from 1 through 59. All vertical tabs, except the one at
line 1, are cleared when you specify a line value of -1 with
SETMODE 26. The vertical tab at line 1 cannot be cleared.
To change the vertical tab stops, follow these steps exactly:
1. Set the form length with SETMODE 25.
2. Clear all vertical tabs with SETMODE 26,
parameter-1
= -1.
3. Set each vertical tab with a separate call to SETMODE 26,
parameter-1
= line number minus 1.
4. Issue a top of form (CONTROL 1,
parameter
= 0). This forces
all tab stops to be set after the form feed is executed. If
the power fails, the tab stops are restored automatically by
the system.
5. If necessary, instruct the operator to align the form.
PROGRAMMING CONSIDERATIONS FOR THE MODEL 5520 PRINTER
Both ATP6100 and SERIALPRINTPROCESS support the model 5520 serial
printer. The subtype for the 5520 is 4. Do not include control
characters (%00-%37) in data sent to the model 5520, since they
disable parity error recovery.
The 5520 printer supports three character widths:
• Condensed--218 characters per line at 16.7 characters per inch
• Normal--132 characters per line at 10 characters per inch
• Expanded--66 characters per line at 5 characters per inch
For a 5520 serial printer, use the CONTROL procedure to advance
the paper to specific locations or a specific number of lines.
The model 5520 printer has a 12-channel DAVFU (direct-access
vertical format unit). The DAVFU is an internal buffer that
controls vertical skipping to a specified line. If values other
November 1987 7-5