BASIC CONCEPTSFigure 1-8. Maintaining margins in preprinted boxes toallow for registration and skew variationsaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaPATIENT NAMEPreprinted linesVariable dataPreprinted form dataaaaaaaaaaaaa•Maintain at least .1“ or 2 mm on all sides around variable dataaaaaaaaaaaaa•aaaaaaaaaaaa•Note: Figure 1-8 is enlarged for the purpose of illustration, andis not to scale.Output performance considerationsThe LPS has a rated speed of up to 50 (4050, 4450, and 4650) orup to 92 (4090) impressions per minute (an impression refers toone printed side of a sheet of paper). The actual outputperformance you experience depends greatly on the processingfeatures invoked in the job and the print density of each page.Actual output also varies according to the configuration of theLPS, such as the type of connection (offline, online, remotecommunication, and front end processor).This section provides information on expected outputperformance when printing various types of jobs, applications,and hardware configurations. For more detailed information,consult your service representative.Note: The term throughput refers to the print speed once pagesstart printing. The processing that occurs prior to the actualprinting of the pages depends greatly on the complexity of thejob.Interpress Interpress masters sent to the LPS must be processed by theInterpress decomposer function of the Operating SystemSoftware (OSS). The time required to print an Interpress jobdepends on the complexity of the image from page to page.PostScript PostScript masters sent to the LPS must first be converted to.IMG files in the front end processor. The time required to printa PostScript job depends on the complexity of the image frompage to page.Dynamic Job Descriptor Entries (DJDE) The use of DJDEs adds processing time and slows the output.To maximize performance, restrict the use of DJDEs to thefollowing commands: GRAPHIC, FORMAT, MODIFY, and FORM.XEROX 4050/5090/4450/4650 LPS FORMS CREATION GUIDE 1-9