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- [PRT]int [S]creen [S]mall
- -------------------------
-
- Although the printer should be the easiest peripheral to use,
- printers seem to cause the greatest headache for the beginner
- as well as the expert practitioner.
-
- Oddly enough one request seems to surface time after time, the
- ability to print in compressed mode. Although this can easily
- be accomplished at the source code stage, it is often forgotten
- or omitted due to its 'hardware dependence'.
-
- Many users who dive into a quick BASIC program to re-set the
- printer default soon find either it's too complicated for them
- or the software they wish to use in compressed mode promptly
- resets the printer prior to execution. (For example compiled
- basic).
-
- Well dispair no longer users, compressed mode at any time is
- here!!!
-
- ***PRTSM.COM is a program which when run establishes itself as
- the always resident print screen interrupt. Always there when
- you need it ***PRTSM.COM resets the designated printer to......
- COMPRESSED MODE thats 17CPI if your printer supports it......
- 12CPI if it does'nt.
-
- I have set up four ***PRTSM's as follows :
-
- OKIPRTSM.COM - FOR OKIDATA PRINTERS
- EPSPRTSM.COM - FOR EPSON PRINTERS
- NECPRTSM.COM - FOR NEC PRINTERS
- TOSPRTSM.COM - FOR TOSHIBA PRINTERS.
-
- If your printer type does not show here, the process of conversion
- for any other printer requiring ESCAPE + CODE format can easily
- be made via DOS's DEBUG facility. (See Appendix)
-
- To use ***PRTSM.COM, either place execution of the program in the
- AUTOEXEC.BAT file or simply type in the command when required.
-
- To envoke the compressed mode you are (alas) forced to do a print
- screen [SHIFT + PrtSc]. Although this can sometimes be annoying
- it's a small price for those who need the facility.
-
- To drop the compressed print mode simply on/off your printer.
- Yes I did think to toggle this via ***PRTSM but felt that it
- was better to on/off the printer than wait out another print
- screen (Oh well, even the best solutions aren't perfect).
- Upon on/offing the printer, you will be back into the default
- mode until another print screen is issued [ SHIFT + PrtSC ].
-
- ***PRTSM.COM has been tested on the above printers under
- DOS 2.0, 2.1 and 3.0. And has worked on a COMPAQ, IBM PC,
- IBM XT and even an IBM AT.
-
- The program is offered free of charge as PUBLIC DOMAIN software,
- provided that the copyright notice and accompanying documentation
- are not altered or omitted.
-
- Source code is in ASSEMBLER and is available upon request.
-
-
- APPENDIX
- --------
-
- ***PRTSM.COM has been written to easily facilitate changes in
- order to be used by a variety of available printers.
-
- To alter PRTSM you will need a copy of the program, DOS's
- DEBUG utility and a manual for the intended printer target.
-
- Follow these instructions and customize PRTSM for your very
- own!!!
-
- 1. Locate in your printer manual the ESCAPE code sequence for
- setting the printer into the required mode.
-
- 2. Translate the decimal code to it's hex code equivilent.
-
- 3. DEBUG ***PRTSM.COM (where *** is the first three characters
- of the driver you currently have).
-
- 4. E 0144 XX (where XX is the hex code setting reqd).
-
- 5. N ***PRTSM.COM (where *** is the first three characters
- in the name of the intended printer)
- 6. W
-
- 7. Q
-
- You should now be back in DOS with your newly modified ***PRTSM.COM
- ready for action. Simply follow the above user procedures to use
- your new print screen generator.
-
- Ken C. Nickerson
- PO Box 600
- Ngr. Sq. Station
- Buffal
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