LU1 Print Jobs Formatted Incorrectly when Using Bypass GDI, PDT

• Microsoft SNA Server, versions 3.0, 3.0SP1, 3.0SP2

SYMPTOMS

If an LU1 type host print job is printed through a 3270 Print Session configured on SNA Server, the output may be formatted incorrectly if the last portion of the print data being passed from the SNA Server service to the Host Print service in an 3270/FMI frame begins with an SCS Control Code. In addition, this will only occur if the 3270 print session is configured to bypass GDI and to use a PDT file.

One reported case of this problem caused the end of one print job to print at the beginning of the next print job. This occurred because the last portion of the first print job was sent to the print service in an 3270/FMI frame that began with the SCS Control Code for a Form Feed ('0x0C').

CAUSE

The Host Print Service loses the end of the last portion of the print data in an LU1 type print job if all the following conditions are met:

   - The 3270/FMI frame of the print job begins with an SCS Control Code.

   - The 3270 print session is configured with the Bypass GDI option
      selected.

   - The 3270 print session is configured to use a PDT file.

STATUS

Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0 SP1, and 3.0 SP2. A supported fix is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Product Support Services for more information.

Keywords          : kbbug3.00 kbbug3.00.sp1 prodsna snaprintservice kbbug3.00.sp2 kbbuglist
Version           : WINDOWS:3.0,3.0SP1,3.0SP2
Platform          : WINDOWS
Issue type        : kbbug
Solution Type     : kbfix