Epson ActionPrinter 4000 User Manual - Page 278

pull tractor unit An optional device that feeds continuous paper and multi-part forms through the printer. push tractor A built-in device that feeds continuous paper through the printer. RAM Acronym for Random Access Memory. The portion of the printer's memory used as a buffer and as a place for storing user-defined characters. All data stored in RAM is lost when the printer is turned off. reset To return a printer to its defaults, either by a command, an INIT signal, code, or by turning the printer off and on. self test A method of checking the operation of the printer. When the self test is run, the printer prints out its current DIP switch settings and the characters that are stored in its ROM (Read Only Memory). serial interface A serial interface transmits data one bit at a time. See also parallel interface. short tear-off A feature that automatically feeds the perforation of continuous paper to the tear-off position to be removed by the operator, and then draws the paper back to the loading position. These positions can be adjusted using the micro-adjustment feature. See also microadjustment and loading position. 10 cpi A character spacing of 10 characters per inch. This is often the standard or default pitch. Also referred to as pica. tractor The part of the printer that moves continuous paper through the printer by its sprockets gripping the holes in continuous paper. Glossary 7