Using Dynamic Job Descriptor Entries (DJDEs)5-8 Using LCDS Print Description LanguageConsiderations and cautions for using DJDEsRemember the following points and cautions when coding andapplying DJDEs.Page transitionissueIf you use the JDE DJDE to reassign the channel that caused thepage transition (generally channel 1), when the DJDE printercarriage control (PCC) byte is processed the first page may beincorrectly positioned after the page transition occurs. Pageoriented DJDEs, like the JDE DJDE, are implemented when thesystem detects the switch from one physical page to the next.The normal page transition is caused by a skip from the bottomof a page to the top of the next, generally channel 1.For example, if channel 1 had been previously assigned at line 1,then a new JDE assigned channel 1 to line 10, the system wouldnot automatically reposition to line 10.SolutionHere are some ways to avoid this problem.• You may add an ASSIGN DJDE to the DJDE packet tochange the applicable channel, such as channel 1, to thenew line number. Because the ASSIGN DJDE is a recordoriented DJDE, it is implemented on the next line and thusaffects the next channel skip.• You may insert a record after the DJDE packet to cause thepage transition and then allow a second skip to channel 1 toposition to the correct line. This technique causes a blankpage to be printed if the new channel 1 is less than the old,but is totally transparent if the new channel 1 assignment isgreater (further down the page) than the old.Duplex DJDE pageprinting issuesWhen certain DJDEs (listed below) are invoked between an oddnumbered page (front side) and an even numbered page (backside), the following printing sequence occurs.The odd numbered page is printed as usual, but with a blankback side. What would have been printed on the back side (theeven numbered page) is printed on the front of the next sheet.This occurs for the following DJDEs:• COPIES• OTEXT• RTEXT
