System/370. An upward-compatible extension of the IBM System/360. A large collection of computing system devices that can be combined to produce a wide range of computing systems that share many characteristics, including a common machine language.

T

task. A basic unit of work to be accomplished by a device or an operator.

TCP/IP. Transmission Control Protocol/Internet Protocol. A set of communication protocols that support peer-to-peer connectivity functions for both local and wide area networks.

TCS. Two-channel switch.

tensile strength. A measure of the force that the paper forms can withstand without tearing.

test mode. The operational mode in which the printer can produce print samples, accept con®guration changes, and control traces. When the InfoPrint 3000 are in test mode, they is not accepting information from the attached controlling computer system. Contrast with print mode and diagnostic mode.

text orientation. The position of text as a combination of print direction and baseline direction.

tie. The interval between cuts of a perforation.

token. In a local area network, a particular message or bit pattern passed successively from one attaching device to another to indicate which attachment has permission to transmit.

token ring. A network with a ring topology that passes tokens from one attaching device to another.

toner. The material that forms the image on the paper.

trace. (1) A record of the running of a computer program. It exhibits the sequences in which the instructions were executed. (2) To record a series of events as they occur. (3) In the InfoPrint 3000, a customer engineer and customer analysis procedure.

tractor. The mechanism that controls movement of continuous forms by way of holes.

tractor holes. The holes in the side margins on continuous forms. When placed on the tractor pins, the holes maintain printer alignment and registration, and control the movement of the paper.

Two-channel switch (TCS). A hardware facility that allows an input or output device to be attached to two channels. In a 3900 Advanced Function Printing System, this facility is automatically supplied when two System/370 Parallel channels are installed.

U

up fold. Fanfold forms are alternately folded. When fanfold forms are unfolded and held horizontally, a fold is an up fold if it points up from the horizontal surface.

V

variable data. The data that can vary; for example, the names and addresses in form letters.

vector graphics. Computer graphics in which display images are generated from display commands and coordinate data. Contrast with raster pattern.

Virtual Storage Extended (VSE). An operating system that is an extension of Disk Operating System/Virtual Storage (OS/VS).

Virtual Storage Extended/Advanced Functions (VSE/AF). The minimum operating system support for a VSE-controlled installation.

VSE/SP. Virtual Storage Extended/System Product.

void. (1) A missing part of the printed character. (2) A missing piece of a continuous form.

X

X-axis.In printing, the axis perpendicular to the direction in which the paper moves through the printer.

Y

X-axis.In printing, the axis parallel with the direction in which the paper moves through the printer.

304InfoPrint 3000 Operator's Guide

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IBM manual InfoPrint 3000 Operators Guide