Rag Paper - Stationery
or other forms of stock having a strong percentage content of "cotton
Rainbow Fountain - Technique of putting ink colors
next to each other in the same ink fountain and oscillating the
ink rollers to make the colors merge where they touch, producing
a rainbow effect.
Raster Image Processor - Device that translates
page description commands into bitmapped information for an output
device such as a laser printer or imagesetter.
Reader Spread - Mechanicals made in two page spreads
as readers would see the pages, as compared to printer spread.
Ream - 500 sheets of paper.
Recycled Paper - New paper made entirely or in part
from old paper.
Reflective Copy - Products, such as fabrics, illustrations
and photographic prints, viewed by light reflected from them, as
compared to transparent copy. Also called reflex copy.
Register - To place printing properly with regard
to the edges of paper and other printing on the same sheet. Such
printing is said to be in register.
Register Marks - Cross-hair lines on mechanicals
and film that help keep flats, plates, and printing in register.
Also called crossmarks and position marks.
Relief Printing - Printing method whose image carriers
are surfaces with two levels having inked areas higher than noninked
areas. Relief printing includes block printing, flexography and letter
Repeatability - Ability of a device, such as an
imagesetter, to produce film or plates that yield images in register.
Reprographics - General term for xerography, diazo
and other methods of copying used by designers, engineers, architects
or for general office use.
Resolution - Sharpness of an image on film, paper,
computer screen, disc, tape or other medium.
Resolution Target - An image, such as the GATF Star
Target, that permits evaluation of resolution on film, proofs or
Reverse - Type, graphic or illustration reproduced
by printing ink around its outline, thus allowing the underlying
color or paper to show through and form the image. The image 'reverses
out' of the ink color. Also called knockout and liftout.
RGB - Abbreviation for red, green, blue, the additive
Right Reading - Copy that reads correctly in the
language in which it is written. Also describes a photo whose orientation
looks like the original scene, as compared to a flopped image.
Rotary Press - Printing press which passes the substrate
between two rotating cylinders when making an impression.
Round Back Bind - To casebind with a rounded (convex)
spine, as compared to flat back bind.
Ruby Window - Mask on a mechanical, made with rubylith,
that creates a window on film shot from the mechanical.
Rule - Line used as a graphic element to separate
or organize copy.
Ruleup - Map or drawing given by a printer to a
stripper showing how a printing job must be imposed using a specific
press and sheet size. Also called press layout, printer's layout