Epson SQ-2000 User-DefinedCharacters, Using the SQ-2000, Printer Care and Maintenance

3	Using the SQ-2000 . . . . . . . . . . . . . . . . . . . . . . . .	29
	Using the SQ-2000 with Word Processors . . . .	29
	Using the SQ-2000 with other application	30
	programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
	Programming with the SQ-2000 . . . . . . . . . . . .	30
	Computer-to-printer communications . . . .	31
	ASCII codes . . . . . . . . . . . . . . . . . . . . . . . . . . . .	31
	Control codes . . . . . . . . . . . . . . . . . . . . . . . . . .	32
	ESCape sequences . . . . . . . . . . . . . . . . . . . . . .	32
	Translating the ASCII code . . . . . . . . . . . . . . . .	33
	How to send control codes to printer . . . . . .	33
	Using Master Select Command . . . . . . . . . . . . . .	35
4	Printer Care and Maintenance . . . . . . . . . . . . . .	43
	The Ink Jet Print Head . . . . . . . . . . . . . . . . . . . . . .	43
	How Automatic Print Head Cleaning Works . .	44
	For more extensive cleaning . . . . . . . . . . . . . .	45
	Special cleaning . . . . . . . . . . . . . . . . . . . . . . . .	45
	Summary of Cleaning Cycles . . . . . . . . . . . . . . . .	46
	Troubleshooting Guide . . . . . . . . . . . . . . . . . . . .	46
5	User-Defined Characters . . . . . . . . . . . . . . . . . . . .	51
	Dot-Matrix Printing . . . . . . . . . . . . . . . . . . . . . . . .	51
	The print head . . . . . . . . . . . . . . . . . . . . . . . . . .	51
	The print matrix . . . . . . . . . . . . . . . . . . . . . . . .	52
	Defining Your Own Characters . . . . . . . . . . . . . .	53
	Sending information to the SQ-2000 . . . . . .	55
	Printing User-Defined Characters . . . . . . . . . . . .	58
	Copying ROM to RAM	58
	How Print Mode Affects User-Defined
	Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	59
	Draft mode characters . . . . . . . . . . . . . . . . . . . .	60
	Letter quality characters . . . . . . . . . . . . . . . . . .	60
	Proportional mode characters . . . . . . . . . . . .	61
	Mixing Print Styles . . . . . . . . . . . . . . . . . . . . . . . .	61
	Other considerations . . . . . . . . . . . . . . . . . . . .	62
	Defining Connecting Characters . . . . . . . . . . . .	62
	Characters that connect vertically . . . . . . . . . .	65

iv