Brother International HL-1070 Technical Reference - Page 269
EMULATION DETAILS, Ignored Commands, Resolution
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2001/10/02 3. EMULATION DETAILS The following points should be borne in mind when using the printer in Epson FX-850 mode. 3.1. Ignored Commands The following commands are ignored: the BEL control code (ASCII code 7) which is normally used to sound a printer's bell, the DC1 (ASCII 17) and DC3 (ASCII 19) control codes, used to enable and disable a printer, the Esc 9 and Esc 8 commands, which normally enable and disable the out-of-paper sensor, the Esc < and Esc U commands for enabling unidirectional printing and the Esc x control code for choosing between near letter quality and draft printing. In addition, commands that try to change the printer's printing speed cannot do so, since the HL-Series printers always print as fast as they can. Hence, the Esc s command, to select or cancel half-speed printing mode, is also ignored, and the Esc Y escape sequence (Print Double-Speed, Double-Density Image), performs the same function as the Esc L (Print Double-Density Image) command. 3.2. Resolution The resolution of our recent printers is 600 dots per inch. (HL-2060 supports 1200dpi.) Some instructions use fractions of an inch by which 600 is not exactly divisible, for example Esc J performs a line feed using a line spacing of n/216". Similarly, there are graphics commands which specify resolutions of 72, 120 and 240 dots per inch. When a line spacing or graphic cannot be implemented exactly at 600 dots per inch the printer approximates as closely as possible using 600 dots per inch. CHAPTER 6 EPSON - 6
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