
Crossover | Occurs when an image is printed on two adjacent pages in a publication |
| so readers perceive a single, unbroken image. |
Customisation | A form of variable information printing. Used to describe a document |
| that has been customised to its audience. Generally a common |
| document template is used with different messages and content based |
| on customer preferences. See personalisation, versioning. |
| A scientific measurement for the difference between two colours. A |
| colour difference of 0 DE is a perfect match, 1 DE is defined as the |
| threshold of what is perceptible to the human eye, and 5 DE is |
| considered acceptable to print buyers. |
Densitometer | A device used to measure light reflectance or transmission. Used for |
| calibration of a printer or press. |
DFE | Short for digital front end. Also called RIP. |
DI press | Offset press with direct imaging (DI) of plates digitally on the press. |
| Still a traditional offset press that offers reduced |
| times. |
The process of cutting specific shapes onto a page with sharp steel | |
| knives. |
Digital front end | The platform that is responsible for job management, queue |
| management, raster image processing, and transfer of the image to the |
| print station. It encompasses the print service, the colour RIP, the |
| storage of Work In Process (WIP), RIPed files and fully automated |
| production services. |
Digital printing | A printing system utilising electrostatic technology (where dry or liquid |
| toner is transferred using an electric charge). A characteristic of digital |
| printing is that every imaged page can be different. |
Dot gain | The tendency for halftone dots to become larger and appear darker |
| because of wet ink spreading when it comes into contact with paper. It |
| is not a problem with digital or xerographic printing. Also called dot |
| spread. |
Dot spread | The tendency for halftone dots to become larger and appear darker |
| because of wet ink spreading when it comes into contact with paper. It |
| is not a problem with digital or xerographic printing. Also called dot |
| gain. |
Dots per inch | Used as a measure of addressability of a digital printer or sampling |
| resolution of a scanner. For example, the DocuColor 2045 and 2060 print |
| at 600 dots per inch. |
dpi | Short for dots per inch. |
Duotone | A |
Duplex | A form of |
| flips the sheet, then prints the second side during a second pass. |
DocuColor 2000 series design guide
G – 4