I run the VPS/TCPIP printing system on z/OS and am attempting to get 
printing working to RICOH laser printers. LPD printing works just fine but the 
preferred way of printing is using LRS's HP Sockets definition to usually Port 
9100. This enables VPS to do such things as Check-pointing along the way. 
VPS Sockets printing needs the printer to support Bidirectional 
communication.  I have a RICOH SP5100N Laser printer configured with Port 
9100 enabled and can get it to print by disabling the bidirectional reponse the 
printer can give along the way.  

The requirement is for the printer to respond to the ECHO/STATUS and it has 
been confirmed the print is making to the printer on 9100 but the printer is 
not 
responding with the ECHO/STATUS. I have been all over RICOH website and 
besides being difficult to search for problems, it has been little help. I 
GOOGLE’d everyway I can imagine to get some hits on anyone having the 
same problem. 

For now the printer is defined LPD and is working. But if, say, a 500 page 
report gets interrupted, then the report starts over from the beginning. All 
the 
configuration options for the printer itself have been reviewed, explored, etc. 
Has anyone encountered the problem with a RICOH Laser printers not 
responding to ECHO and what did you do to set it. My sense is it is a 
configuration option at the printer but have no idea which one would enable it. 
If you want to ask RICOH a question like this, get out the credit card. An 
interesting strategy because if I can not get bidirectional to work, my 
recommendation to the customer will be buy some other manufacturers 
printers.    

Jim 

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