Single Form Feed Sent by Host on LU3 Print Session Is Ignored

• Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 4.0

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SYMPTOMS

A single form feed (FF) that is sent by the host on a LU3 printer session is ignored by the SNA Print Server.

CAUSE

The SNA Server Print Service is designed to execute a form feed (FF) included in an LU3 print job when any of the following conditions are met:

- If the FF is inserted as the first character after the WCC in a 3270

   Erase/Write or Erase/Write Alternate command.

   print line.

STATUS

Microsoft has confirmed this to be a problem in SNA Server versions 3.0 and 3.0 SP1. To resolve this problem, you must upgrade to SNA Server version 3.0 SP2 and apply the hotfix listed below, under SNA Server version 3.0 SP2.

Microsoft has confirmed this to be a problem in SNA Server version 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 Technical Support for more information.

Microsoft has confirmed this to be a problem in SNA Server version 4.0. 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 Technical Support for more information.

MORE INFORMATION

The following steps need to be performed to allow a form feed to be executed no matter where it occurs in the LU3 data stream:

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

1. Apply the hotfix.

   following key:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
   \SnaPrint\Parameters\

   Value Name: DoAllLU3FFs
   Data Type: REG_SZ
   String: True