User manual EPSON DFX-8000

[. . . ] EPSON® DFX-8000 User's Manual FCC COMPLIANCE STATEMENT FOR AMERICAN USERS This quipment has been tested and found to. && with @te limits for a class B digital device. `Yhaee limits pe designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may. However, there is no guarantee that &&e&e `- not~jttapar&&rin&l#&m. Ifthisquipment YtiP does cause harmful~@gf&+e, ~. radid qr *ion *on, w&h . FM be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: . [. . . ] (These characters are called download characters in some programs. ) The standard characters are stored in the printer's Read Only Memory (ROM), and the user-defined characters are stored in the printer's Random Access Memory (RAM). In Epson ESUP mode, user-defined characters remain in the printer's memory even after the printer is turned off. You can select the userdefined character set by turning on DIP switch 2-l without defining the same characters again. However, in the IBM emulation mode, user-defined characters are cleared whenever the printer is turned off, including characters defined in Epson ESC/P mode. 4-22 Software and Graphics User-defined Characters Designing your characters Userdeked characters are like dot graphics because you send the- printer pm&e instructions on where you want each dot printed. In fact, planning a user-defined character is like planniqg a small dot graphics pattern. In this mode, you treat the printer as if it had a single column of nine pins. Design grids To design a draft character you use a grid that has nine rows and eleven columns as shown below. Also, even though you can use up to 11 columns, it is best to leave the last two blank for the space between characters. 128 64 32 16 8 4 2 1 123456789 128 64 32 16 8 4 2 1 128 64 32 16 8 4 LiiiiI 123456789 2 1 123456789 The grid in the middle shows the design. You can use up to eight pins of your printer's print head in a single user-defined character. The design above uses the top eight pins, but you can also use the bottom eight by using the grid on the right as explained later in this section. . Software and Graphics 4-23 User-defined Characters Sending information to your printer Once the -character is planned on the grid, you simply add the pin values for each column together, just as you do for graphics. The last step in defMng , a character is to send this information to the printer. The command to define characters is relatively complex: ESC & 0 nl n2 al dz . The values nl and ti are the ASCII codes of the first and last characters you are defining. You can use any codes between 0 and 255 decimal for nl and n2 except the following codes: 7, 8, 9, 10, 11; 12, 13, 14, 15, 18, 19, 20, 24, and 27 decimal. Also, it is best not to define decimal 32, which is the code for a space. (See the Command Summary in Chapter 9. ) For example, if you wanted to redefine the characters A through Z, n7 would be A (or ASCII code 65) and n2 would be Z (or ASCII code 90). So the command ESC , h 0 AZ (followed by the appropriate data) would replace the characters A through Z. Following the specification of the range of characters to be defined in this command is one number (al) that specifies the width of the character and whether it uses the top eight pins or the bottom eight pins. . dn) is the actual data that defines the dot patterns for each column of each character. Since a character can use up to eleven columns, you must supply eleven data numbers for each character even if some columns are blank. The ESC & command is invalid if this switch is on. 4-24 Software and Graphics User-defined Characters The following character definition program should help make this clear: 100 110 120 130 140 150 160 170 180 190 200 210 220 230 LPRINT CHR$f27) :"x":CHR$(O) : LPRINT CHR$(27) ;"&";CHR$(O); LPR1NlY. V: LPRINT 'X$2$(136 1; FOR I=1 TO 11 READ A: LPRINT CHRS (A) : NEXT I LPRINT "@W" LPRINT CHR$(27, :"X";CHR$(l): LPRINT V0. W' LPRINT CHR$(27);"X":CHR$(O): LPRINT "eieo@" END DATA 32. 80. 168. 84, 42. 84. 168. 80, 32. 0. 0 The two at signs (Q) in line 120 (no and ti) represent the range of characters being defined (in this case, a range of one). The information about the actual character design (which is contained in the data statements at the end of the program) is sent to the printer in the loop between hnes 140 and 160. Sped&ngthewid&andheight The example program uses 136 for al (in line 130 of the definition program), but you can use other values. [. . . ] Unidirectional printing is useful for printing graphics because it allows more precise vertical alignment than bidirectional printing. userdefined characters Characters that are defined and stored in the printer by the user. Also known as download characters. Go s r l sa y GL-11 Index A Application programs, l-36 ASCII, 9-3 Assembling the printer, l-9-12 Auto line feed, setting with DIP switch, 3-11, 3-15 B Bail, paper, 5-5, 5-14 BASIC, 4-15, 9-3 Baud rate. See Serial interface Beeper, 9-12 Bidirectional printing, 8-2, 9-10 Bit image graphics. See Skip over perforation Brackets, locking, l-5, 6-11 Buffer, 3-12, 3-16, 8-3 Buttons, 3-4-6 FORM FEED/COPY, 3-4 LINE FEED/LOAD, 3-4, 3-5 MM0 FEED, 3-4, 3-5 ON LINE, 3-4 FRONT/REAR (PAPER SELECT), 3-4, 3-6 C Cable, parallel interface, l-27-30 power, l-3, l-13-14 serial interface, 1-31-35 Carbon paper See Multi-part forms Character fonts, 3-43-44, 4-2-3, 8-3, 9-46 Character size, 4-4, 9-25--28, 9-46-48 Character spacing, 3-45, 4-3-4, 9-25, 9-47 Characters per inch, 3-45, 4-3, 8-2-3 Character tables, 349-50, A-6-10 setting with DIP switches, 3-11, 3-13, 3-49-50 setting with software commands, 9-34, 9-49 Choosing a place for the printer, l-7--8 Choosing from a menu, l-36-37 TEAR OFF, 3-4, 3-5 TOP OF FORM, 3-4, 3-5 Buzzer. [. . . ]