DOCUMENT:Q276288  12-JUN-2001  [sna]
TITLE   :WritePrinter() Error Recovery with SNA Server Print Service
PRODUCT :Microsoft SNA Server
PROD/VER::4.0,4.0 SP1,4.0 SP2,4.0 SP3
OPER/SYS:
KEYWORDS:kbDSupport sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbSNA400sp4fix kbSNA400PreSP4fixkbb

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The information in this article applies to:

 - Microsoft SNA Server, versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3 
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SYMPTOMS
========

The Print Service of SNA Server uses the WritePrinter function call to send data
to the printer. Errors may sometimes occur when this function is called, which
may cause such problems as incorrect output (dropped characters) to be printed.

CAUSE
=====

Because all errors to WritePrinter are intermittent and appear to be related to
stress conditions, Print Service was modified as follows:

1. If an error occurs, a retry loop is entered, where the call is made five
   times with a 20 millisecond delay, which usually resolves stress-related
   errors.

2. If the WritePrinter call still fails, the failure is marked as a job error,
   and printing of the job is stopped.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for SNA Server 4.0. For
additional information, please see the following article in the Microsoft
Knowledge Base:

   Q215838 How to Obtain the Latest SNA Server Version 4.0 Service Pack



STATUS
======

Microsoft has confirmed this to be a problem in Microsoft SNA Server, versions
4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3.

This problem was first corrected in SNA Server 4.0 Service Pack 4.

Additional query words: Winvprt Ppd3270 Ppd5250 sp1 sp2 sp3

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Keywords          : kbDSupport sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbSNA400sp4fix kbSNA400PreSP4fix kbbuglist kbfixlist
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ400 kbSNAServ400SP1 kbSNAServ400SP2 kbSNAServ400SP3
Version           : :4.0,4.0 SP1,4.0 SP2,4.0 SP3
Issue type        : kbbug
Solution Type     : kbfix

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