Xerox 721P88200 manual Data streams, Data towers

AFP SUMMARY

Data streams

Data streams define the structure and content of an application. Three types of data streams used by AFP are:

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Mixed Object Document Content Architecture (MO:DCA) data streams, which are generated by an application and are device independent. These data streams describe documents and object envelopes for interchange with other applications and application services.

Intelligent Printer Data Stream (IPDS), which is a device-bound data stream that has been processed into printer-specific data, normally by PSF. This is the native language of DocuPrint IPS printers. These data streams perform printer control functions and share job status information.

Advanced Function Presentation Data Stream (AFPDS), which is an architected presentation function set of MO:DCA. Also known as MO:DCA-Presentation (MO:DCA-P), it consists of data objects and data structures that define a document’s layout.

While there are other data streams associated with AFP documents, you will use the MO:DCA and IPDS data streams most frequently when printing to DocuPrint IPS printers. You can also print AFPDS to DocuPrint IPS printers, but the data stream must be converted to IPDS before being submitted.

Data towers

What makes a printer an IPDS printer? IPDS printers have these features:

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implementation of a subset of the Device Control command set

implementation of one or more of these IPDS command sets and their corresponding “tower”

—PT1, PT2, and PT3 (text)

—IM/1 (uncompressed images)

—IO/1 (compressed images)

—DR/1 and DR/2 (graphics)

—BC/1 (bar codes)

generation of IPDS exceptions according to a set of predefined IPDS rules

The DocuPrint IPS printers are compliant with the PSF data towers. For more information on the data and resource towers implemented in IPS, refer to “Object Content Architectures” on page 2-4.

IPS SOLUTIONS GUIDE 2-5