Ricoh InfoPrint Pro C900AFP InfoPrint Manager - Page 256
Data objects, Types of data objects
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addition, AFP Resource Installer automatically installs all the generic halftone and tone transfer curve CMRs in any resource library you create. You can download device-specific CMRs for InfoPrint printers such as the InfoPrint 5000 from the InfoPrint Solutions Company Web site: http://www.infoprint.com If you need more CMRs, you can create them by using wizards provided in AFP Resource Installer. See the online help for details about the wizard. If you use AFP Resource Installer to create a CMR, the software automatically installs the CMR in a resource library. You can also use AFP Resource Installer to install CMRs that you get from your printer manufacturer. Data objects Presentation data objects contain a single type of data (such as GIF, JPEG, PNG, and TIFF images) and can be used in your print jobs. These data objects can be placed directly in a page or overlay or can be defined as resources and included in pages or overlays. Using a data object as a resource is more efficient when that object appears more than once in a print job; resources are downloaded to the printer just once and referenced as needed. Data objects can either be included inline with a print job or installed in a resource library by using software such as AFP Resource Installer. If you install your data objects in a resource library, you can associate color conversion CMRs with them. Types of data objects Image data objects can be stored in a number of different formats, including AFPC JPEG Subset, EPS, GIF, IOCA, PDF, PNG, and TIFF. These image types are device-independent so they can be used by different systems and still be interpreted consistently. v AFPC JPEG Subset (JPEG) AFPC (AFP Consortium) JPEG Subset files, formerly called JPEG File Interchange Format (JFIF) files, are bitmap image files that are compressed by using Joint Photographic Experts Group (JPEG) compression. As a result, AFPC JPEG Subset files are most commonly referred to as JPEG files. JPEG files most commonly use the file extension .jpg, but can also use .jpeg, .jpe, .jfif, and .jif. JPEG compression deletes information that it considers unnecessary from images when it converts them. JPEG files vary from having small amounts of compression to having large amounts of compression. The more an image is compressed, the more information is lost. If the image is compressed only once, there usually is no noticeable effect on the image. However, if the image is compressed and decompressed repeatedly, the effects of deleting information become more noticeable. JPEG compression is commonly used for photographs, especially photographs that are transmitted or displayed on Web pages. The compression makes the files small enough to transmit on a network efficiently, but leaves enough information that the image is still visually appealing. v Encapsulated PostScript (EPS) EPS is a PostScript graphics file format that follows conventions that Adobe Systems defined. EPS files support embedded ICC profiles. v Graphics Interchange Format (GIF) 238 InfoPrint Manager for Windows: Procedures