DBCS.
DCF. Document Composition Facility.
developed image. The image that has been exposed onto the photoconductor and covered with toner by the developer.
developer mix. A combination of carrier beads and toner in which the beads electrically charge the toner.
diagnostic. Pertaining to the detection and isolation of errors in programs and faults in equipment.
diagnostic mode. The operational mode in which the printer can check itself in case of a malfunction. When the InfoPrint 3000 is in diagnostic mode, it is not accepting information from the attached controlling computer system. In the InfoPrint 3000, only service representatives can use diagnostic mode. Contrast with print mode and test mode.
direct attach. The environment in which an application program directly allocates the InfoPrint 3000 printing subsystem.
dishing. The curve a stack of forms takes when folded or refolded at the fold perforation.
diskette. A thin, ¯exible, magnetic disk enclosed in a protective jacket.
Document Composition Facility (DCF). An IBM licensed program that provides text formatting for the InfoPrint 3000.
down fold. Fanfold forms are alternately folded. When fanfold forms are unfolded and held horizontally, a fold is a down fold if it points down from the horizontal surface.
DPE. Decompression Performance Enhancement.
drag. The resistance to forms feeding freely into the printer; for example, the form rubbing against the carton.
duplex printing. A mode of printing on both sides of a form. Contrast with simplex printing.
E
EBCDIC. Extended
EC. Engineering change.
electronic overlay. A collection of constant data electronically composed in the controlling computer. Can be merged with variable data on a page during printing. An electronic overlay de®nes its own environment. It can be in coded form or raster pattern form. See also preprinted form.
electrophotographic process. The creation of an image on forms by uniformly charging the photoconductor, creating an electrostatic image on the photoconductor, attracting negatively charged toner to the discharged areas of the photoconductor, and transferring and fusing the toner to forms.
emboss. To press and raise the surface of paper into a design. Embossed paper appears thicker than nonembossed paper, can increase printer wear, and can degrade print quality.
error log. (1) A data set or ®le in a product or system where error information is stored for later access. (2) A record of machine checks, device errors, and volume statistical data.
ESCON. Enterprise System Connection.
ESCON channel. A channel having an Enterprise Systems Connection
ESMM. End Select Medium Modi®cation.
Ethernet. A local area network that allows attachments to transmit on the network without prior coordination.
F
fanfold. Continuous forms that are alternately folded at regular intervals, usually on a perforation.
Fiber Distributed Data Interface (FDDI). An ANSI standard for a 100 Mbps LAN using optical ®ber cables.
FLSF. Font Library Service Facility.
fold memory. The ability of a form to refold at the fold perforation after exposure to heat during the fusing process.
fold perforation. The perforation on which a form is folded during manufacture and refolded after printing. See also page perforation.
Font Library Service Facility (FLSF). A licensed program that provides a way to make changes to a font
