The black roller that provides a backing fat the paper during printing.

The area of a page on wNch the printer can print. It is slightly smaller than the physical size of the page due to margins.

PW?Oftb~W)tklg

Printingfnwhnthewidthofthe charstcter varies. from cbaxacter to cfamter. For example, a capital W &ves much

morespecethanaIowercase tl%eresuIthoksmoreIikf2a typsetbookthanatypewrittendraft.

Random access memory. The portion of the printe~‘s memory usedasabufferandforstoringuserdefinedcharactem.All datastoredinRAMkk&wkntheprinteristurn4off.

IWetreset

To return a printer to its default status by sending a command oranIMTsignaLorbytumingtheprinteroffandthenbaclc

OIL

##test

A method for checking the operation of the printer. When you run the self test, the printer prints various spedfkation infbrmation and the characters stored in its ROM.