GRAPHICS FEATURES AND COMMANDS

The Grappler Interface can output the HIRES screen to the printer by using simple commands. All graphics commands consist of the command character (usually CTRL—I) followed by a “G", and any options described below. If no other options are used (i.e. CTRL—I G [carriage return]), HIRES page 1 will be printed horizontally with every white dot on the screen printed as a black dot on the paper. The different options are described as follows:

2 — Print HIRES page 2 instead of page 1.

D — Print the graphics screen double size. Some printers don’t have enough character positions to print a double size image horizontally (e.g. MX—7Ø, MX—8Ø, IDS—445). If that is the case, you must also use the “R” option. Otherwise your printer will get confused and “crash", meaning it won’t do anything. If that happens you will have to reset the APPLE by pressing the reset key, and then reset the printer by turning it off and then on again.

E - Prints and "emphasized” image (EPSON MX—8ØS, MX—8ØFT, and MX-1ØØ only). When in this mode, the printer will print two closely spaced dots for every one it would normally print. This results in a denser image but printing time is twice as long.

I - Invert the image before printing. Normally, every white dot on the screen is printed as a black dot on the paper. This works fine for lines and graphs but if you are printing an actual picture of a person or object it will appear like a negative photograph. Using this command will print the black portions of the screen as black on the paper allowing the picture to appear normally.

L - Print the image at the left margin previously set using the left margin text command. Depending on the type of printer being used, this margin may be affected by the current print density (characters per inch) or may be automatically set to 7 dot positions per character. If this option is not used, the image will be printed in the center of an 8 1/2 inch page.

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