A fold at right angles to the direction of the web.

Standard half-tone screen .See Half-tone screen.

A sub-heading ranged centrally over a column.

Standard British paper size measuring 384*504mm.

Paper defect affecting a small area and showing as a visible surface fault.

Condition of an ink layer which ,due to too much dryer causing rapid oxidation, will not accept a second ink overpring .See Refuse.

The rapid solidification of ink or varnish by means of chemical action. See Drying , Setting .

A paper distortion in which it takes a simi-cylindrical shape;due to structural, grain direction and coating differences between the two sides; usually aggravted by moisture.

Typefaces which simulate handwriting form of touch each other in the free flowing form of handwrting , but there are designs having no joined characters .Also called Script.

Moveable indicator on a video display screen to show a location as instructed by the operator.

A paper coating system in which the coating is injected horozontally across the web .Also called Spray coating.

A lens fault in which a perfect image at all pionts on the flat film cannot be formed because the lens do not have the right curvature. Consequently, when the centre of the image is in focus ,the margins will be out of fovus and vice versa.

Electros or stereos shaped for use on rotary printing machines.

(1)Amercan term to mean letterpress block.

(2)American term to mean an illustration.

(3)The act of cutting paper with a guillotine .

Binding style with the cover cut flush with the pages.

American term meaning marks printed on a sheet to indicate the edge of page to be trimmed . Called Trim mark in Britain.

A general term for small cutting tools of various designs for various purposes. For clear indication ,it is necessary to specify the type ,e.g. paper cutter,slug cutter, angle cutter,etc.

Cutting watermarked paper regardless of watermark positions .See Cut-to-register.

Divisions cut into edge of book to indicate alphabetical steps. Also called Step index.

Notes that set into the text space.

The maximum length of sheet that can be printed on a web press and equivalent dto the cirvumference of its impression cylinder.

(1)Illustration with the background painted out or removed by process work. Better known as Silhouette.

(2)A display card or book cover with a pattern die cut in it.

Small-sized paper sheets for stationery . The most common cut-size is A4.

Paper with a watermark in the same position on each cut sheet. See Cutting ahead.

The amount of time required for a computer to access or move fata , perform caculation and re-store the result in its memory. Stated in micriseconds or manoseconds, it is an indication of processor speed.

Sheets of paper around the impression cylinder of a letterpress printing machine which improve the definition of th print by providing a cushioned impression.

The non-printing portion of the peripheral surface of a printing cylinder where lock-up device is installed.

(1)A paper machine ,mostly used for making board ,in which a gauze-covered cylinder revolves in a vat oif pulp which is then depisited on its surface. Also called Vat machine .

(2)A letterpress printing  machine whixh uses a revolving cyllinder to make the impression .Can be used for die cuktting andcreasing. Also called Cylinder press.

A sheet placed behind the plate or blanket to compensate for different thickness of plates and blankets and permit adjustment of the contact pressure between them .

See Cylinder machine .

Russian characters.