IBM 4230 User Guide - Page 303

characters per inch (CPI). The number of alphanumeric characters that fit into one inch of printed text. coaxial cable. A cable that consists of one conductor, usually a small copper tube or wire, within and insulated from another conductor of larger diameter, usually copper tubing or copper braid. Document Insertion Device (F3). A forms device used for most general printing requirements on continuous forms. Document on Demand feature. A feature that moves continuous forms within the printer so that a blank form is not ejected when separating forms. command. A request from a terminal for the performance of an operation or the execution of a particular program. continuous forms. A series of connected paper forms that feed continuously through a printing device. The connection between the forms is perforated to allow the user to tear them apart. Continuous Forms Device (F1). A forms feed device that allows printing of continuous forms in an unattended mode of operation. cut forms. A single form, not connected to other forms. The form may have more than one part; that is, it may have an original and one or more copies. D Dual Purpose Forms Device (F2). A forms feeding option which, when selected, automatically stops continuous forms at the perforation. This enables the printed form to be torn off before the next sheet begins to be printed. F feature. A particular part of an IBM product that a customer can order separately. feed roller. See right roller assembly. form. The area between perforations on continuous printer paper. form feed (FF). Paper movement used to bring an assigned part of a form to the printing position. data bits. The number of data bits sent in each transmission frame using the serial interface. data stream. Print data and control information flowing from host system (computer) to the printer, from beginning to end without interruption. forms device. One of four mechanical paper handling devices that can be installed in the 4230 Printers. forms guide/forms sensor. Blue guide used to align the left edge of a Glossary X-3