Rasterization

Rasterization

The conversion of vector graphics (images described mathematically as points connected by straight lines) to equivalent images composed of pixel patterns that can be stored and manipulated as sets of bits.

Resident

Permanently stored in the printer’s memory.

Resident Fonts

Fonts permanently stored in the printer's memory; also called internal fonts.

Resolution

A measurement of the dots per inch (dpi) in output material, either printed or visual, as in a high-resolution monitor. Your printer features a 300x300, 600x600, and 1200x600 dpi resolution.

RISC

An acronym for Reduced Instruction Set Computing, a microprocessor design that focuses on rapid and efficient processing of a relatively small set of instructions.

ROM

An acronym for Read Only Memory. This type of memory contains data and/or printer-executable instructions that can be read but not modified. On QMS Crown printers, the operating system code, resident fonts, and resident emulations are all stored in ROM. This information is not lost when the printer’s power is turned off.

RTS

An acronym for Request To Send. RTS is a signal sent from the host to the printer indicating it is ready to send data.

Scalable Font

A scalable font is one in which each character’s dot pattern (bitmap) is generated from a mathematical representation (or outline) of the character. Scalable fonts eliminate the need to store many different font sizes.

Screen

The pattern in which dots or lines are placed on a page to create colors or levels of gray. See also screen angle.

G-14

QMS 1660 Print System Reference