| A | B |
|---|
| Delivery | The operation of an offset press is controlling the paper after the image is printed |
| Fountain solution | A chemical mixture applied to the nonimage areas of an offset plate to repel ink |
| Infared drying system | Dries ink quickly by using extreme heat through infared bulbs located above the delivery tray; can be dangerous due to fire hazards |
| Ink | A substance applied to the image areas of an offset plate for transfer to the blanket and then to the paper |
| Offset | In modern lithography, the procedure of transferring a righ reading image(plate cylinder) to an intermediate carrier (blanket cylinder) where it becomes wrong reading, then transfering that image to a receiver (paper stock) where it again becomes right reading |
| Offse press | A piece of printing equipment which holds a roll or stack of paper, controls that paper through the process of imprinting an image on its surface by the offset method, and delivers the paper to a stack or roll for further processing |
| Offset pringting | The process of printing from a flat surface with the image and nonimage areas separated by ink/water chemistry. |
| Register | To print the image in the exact same position on each sheet of paper |
| Register board | A flat surface on which the sheet of paper is positioned between the feeder and cylinder systems. |
| Vacuum | Suction created through the sucker tube(s) by a vacuum pump intake |
| Blanket wash | a petroleum base solvent prepared for washing rubber offset blankets and rollers; used for general press clean up |
| Color bar | a series of ink patches printed on a press sheet that included solid patches of the ink and 25%, 50%, and 75% screen tints of those colors |
| Dot gain | Indicates how much the dots of ink have spread in the paper in relation to the original dot size on the film. |
| Etch | a solution that conditions the nonimage area of an offset plate to make it more water receptive |
| Feed table exts. | movable metal plates which attach at right angles to the feed table surface to extend its height and allow open space to accomodate the side and back paper guides when the feed table is at top position |
| Handwheel | a wheel on the operator's side of a press which allows the operator to turn the press through its cycle by hand. |
| Makeready | Process that press operator goes through in setting up the press for a press run. |
| Night latch | A Position of slight separation of the rollers in the ink and dampening systems used when the press is not operated for a period of time to prevent flat stripes from forming on roller surfaces |
| Paper bail | A thin, narrow, long metal strip attached to the delivery system which aids in controlling the delivery of a sheet to the receiving tray |
| Picking | A condition caused by wet inkfrom the image transferring to the impression cylinder when printing a two-sided job |
| Setoff | A condition caused by wet ink from the image on the surface of one sheet rubbing off onto the next sheet in contact with the image. |
| Sheetwise | To print one side of the paper with one plate, then turn the sheet over and print the other side with another plate using the same gripper and side guide. |
