3 – 1This chapter describes the printing and formatting features and the codes that controlthem. It is not just for programmers, if you want to modify your software to add aparticular function, or if you want to embed extra commands in a document, you willfind the necessary information here. Even if you just use the front panel to control yourprinter, the explanations of the features and how they work will be helpful.In this chapter we list each control code in decimal, hexadecimal and ASCII notation.The control code table in Appendix A gives you a quick reference for each functioncode. Because the printer can emulate four printers, there may be as many as fourdifferent ways to control a particular function, depending on the emulation you haveselected from the menu. To make sure you know which one to use, we have markedthe commands with letters to indicate which emulation they apply to:E = Epson LQ series (LQ 850/LQ 1050E2 = Epson ESC/P2 series (LQ 870/LQ 1170 See Chapter 4)P = IBM Proprinter X24E/XL24EA = IBM Proprinter X24E/XL24E AGM (Alternate Graphics Mode)In many cases, all emulations use the same commands. In almost all cases, both IBMemulations use the same commands. Details on specific emulations fall underappropriate headings. These separate sections only appear when there are differencesamong the emulations.Print Quality Decimal Hex ASCII CompSelect LQ/Utility print 27 120 n 1B 78 n ESC x n Equalityn = 1: Select LQ; n = 0: Select UtilityEPSONUse utility printing for drafts and other documents that you want to print quickly. LQ(Letter Quality) printing is slower than Utility, but the characters are crisper and morelike the characters produced by a typewriter. Use LQ for final drafts and importantdocuments where appearance matters. Your printer’s front panel or the Menu Selectmode can also select print quality.IBMYou can use the ESC I command to specify LQ or utility printing.Control Code Reference