The information in this article applies to:
SYMPTOMSAS/400 print jobs that had been printing properly with SNA Server 3.0 and 3.0 Service Pack 1, may produce an extra Form Feed after applying SNA Server 3.0 Service Pack 2 and configuring AS/400 print sessions to use Host Print Transform (HPT). This problem is not easily reproduced and rarely occurs. CAUSEPrint jobs printed over sessions configured with HPT enabled are printed as transparent print jobs since the job is rendered by print drivers on the AS/400. Print Server does not know that it is receiving a transparent job until it receives the x'03' byte at the start of the HPT data. Before receiving this byte, Print Server had made a call to StartDoc() to begin GDI printing. Transparent jobs are not printed through the GDI. When the print service realizes this is a transparent job, it calls CancelDoc() to end the previous StartDoc() call. The GDI always produces a a Form Feed when CancelDoc() is called and it is this Form Feed that causes the problem. WORKAROUNDConfigure the print sessions to use a PDF file since this indicates that the job will be transparent, therefore the Print Server will not call StartDoc(). STATUS
Microsoft has confirmed this to be a problem in SNA Server versions
3.0 SP2 and 4.0.
S E R V P A C K MORE INFORMATION
Print Server now recognizes when HPT has been configured in the printer
session properties, and will internally generate a blank PDT file to use.
This has the effect of informing Print Server to use the transparent
printer interface and, will not result in any unwanted PCL sequences being
sent to the printer.
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