Server 2008R2 - RDP - Shared printers fall off network

Hi Experts -- perhaps you can help me.  I have a Server 2008R2 Terminal Services server with several users who attach to the server via RDP.  On each user's local PC running Win7 and they have an HP Laserjet printer which is shared, and is set as the default printer.  

The users connect via RDP to the server, and at some point during the RDP session the printer disappears????  Now if the user gracefully disconnects from RPD and reboots the PC and reconnects via RDP, the printer still does not show up.  HOWEVER, if I go into the TS Services and stop/start the Printer Spooler and have the users log off gracefully from RPD and then logback into the TS all is well and the printers showup.    This issue only affects PCs running Win7!!!!

I have googled with little success and fought with this issue for several months without a satisfactory solution other than to stop/start the printer spooler.   Any ideas or help would be much appreciated.
Thanks in advance for your help.
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printers are only connected during logon. this is not the case with reconnection after a disconnection.

Make sure your users are logging off and not disconnecting.

With regard to the printers disappearing, do you know if this follows a disconnection (whether intentional of connection related) as this is known to cause mapped drives & printers to disconnect on some occasions.

If not, check the event viewer on the TS at the time the printers disappear to see if any issues are logged.

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infosys3Author Commented:
Many thanks for your comments...especially regarding users logging-off vs disconnect.  I will bet this is the issue...Thanks again for your reply.
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Windows Server 2008

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