1574985 - Problems while printing from handhelds to SAP

• Printing from handhelds to thermal printers.
• The productive system needs to be restarted every time that errors start showing up in SP01.
• SP01 spool request status displays 'Waiting' and afterward the message changes to "Output device unavailable".
• SM50 the spool work processes may not show any problems or activity:
      FA  U Connection to SAPLPD Broken
      Q0  I Operating system call connect failed (error no. 55 )
      Q0  2 Stop Workproc PID

• SP01 error's can display:
      Incorrect (Failed to connect to LPD)
      Error:               LPD response format invalid
      Error during print request output. l_rc = 2
      Unable to establish connection to Berkeley LPD
      4 connection attempts terminated with network errors.
      For more information, look in the system log or developer trace
   
• Access Method 'U' is in use for the affected Output Device/s in SPAD.

• SAP Netweaver
• SAP Basis

Print, Printing, Handhelds, Handheld Printers, Thermal Printer, SP01, SPO, WP, Spool Request, Spools, Waiting, SPAD, Output Device Unavailable, Access Method U, Remote Printing, FA U Connection to SAPLPD Broken, Q0 I Operating system call connect failed (error no. 55), Q0 2 Stop Workproc PID, Incorrect (Failed to connect to LPD), Error: LPD response format invalid, Error during print request output. l_rc = 2, Unable to establish connection to Berkeley LPD, Connection attempts terminated with network errors, For more information, look in the system log or developer trace , KBA , network , BC-CCM-PRN , Print and Output Management , Problem