Can't print from remote location accessed with RDP through SonicWalls

When using RDP from my home to my office, I am unable to print my work documents to my home printer.  
At home I have a TZ170.  At work I connect through a TZ180.
I can't see my printers at home from my office (which is why I can't print to them).  
I suspect that the router settings are connected to this problem but I can't see any differences except in the Netbios broadcast passthrough. At work LAN to WAN is not selected, but it is at home.  I hesitate sending Netbios broadcasts out the WAN so I'm not sure if I should try this.  Could this be related?  Does anyone have other suggestions why I can't see my printers at home?
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In the advanced setting in your RDP (before connecting click options) click local resources and tick connect printers at the bottom.
they should show up in your RDP connection after that.
Printers That Use Ports That Do Not Begin With COM, LPT, or USB ...

Another helpful link for dealing with RDP printing....

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The TS server (or desktop PC) you are RDPing to might need the driver for your printer installed - (open printers folder and go File->Server Properties on the PC or server at your office and make sure your driver is installed.

Just a thought - might be wrong though :-)
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thutchinsonAuthor Commented:
No printers are visible.  This is not a drive issue but thanks.
thutchinsonAuthor Commented:
I know about that printer and disk drive setting for the RDP options.  That's not it.  
thutchinsonAuthor Commented:
John6767:  I have the same printer at the office and at home.  They are both HP Laserjet 1320 printers.  These are not multifunction print devices but they are still using Dot4 ports which your article mentions is the issue.  
Once you make the reg change and reboot, see if they appear, now that those ports are redirected....
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