Epson LQ-2550 User Manual - Page 128
User-Defined Characters, Designing Your Characters - software download
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If you change one of the 8-pin graphics options to a 24-pin graphics option without changing the program that supplies the graphics data, you will print garbage (if the program prints at all). Remember, the 24-pin graphics options require three times as much graphics data as the 8-pin graphics options. User-Defined Characters With this printer, it is possible to define and print characters of your own design. You can design an entirely new alphabet or typeface, create characters for special applications such as mathematical or scientific symbols, or create graphic patterns with user-defined characters to serve as building blocks for larger designs. Below you can see samples of typefaces created with the user-defined character function. You can make the task of defining characters easier by using a commercial software program that either assists you in creating characters or simply supplies you with sets of characters already created. Also, some popular commercial software programs take advantage of the printer's user-defined character function to enhance printouts. (These characters are called download characters in some programs.) Standard characters are stored in the printer's Read Only Memory (ROM), and user-defined characters are stored in the printer's Random Access Memory (RAM). Designing your characters User-defined characters are like dot graphics because you send the printer precise instructions on where you want each dot printed. In fact, planning a user-defined character is like planning a small dot graphics pattern. Using Software and Graphics 4-23