Epson GQ-3500, User Manual

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Graphics Primitives
The GQ-3500 has a set of commands called graphics primitives.
These commands allow you to create an image, store it in the printer’s
memory, and print it. You can print an image as many times as you like
once it has been stored.
Creating images
The ESC 1 n command, which invokes the graphics mode, is
similar to the other commands with which you are now familiar. To
select the graphic mode, use the ESC 1 n command, replacing n with a
number from 1-8 you wish to use to identify the image. You can store
eight images in the printer’s memory at a time. They remain in
memory until you either turn the printer off or delete them from
memory with the ESC I 0 n command.
The five graphics commands, which are available only in
graphics mode, are the following:
Software Control of Printer Features 6 - 9