samedi 9 août 2014

impression - accès Direct à l'imprimante USB ports répertoriés dans le spouleur Windows - Stack Overflow


In the world of printers, particularly the POS ones, there are two common approaches, OPOS and Windows print queues. And there's also the work-around like the virtual serial port. But there seems to be another approach out there too ... the driver is installed but the software seems to be writing directly to the port rather than using the windows spooler.


If you look at the spooler ports when an Epson USB printer is installed for example, there is a ESDPRT001 ... could it be that the POS app is writing to the port directly and bypassing the whole spooler?




According to Epson's product description of OmniLink no driver is required. It is quite possible that the spooler has been outsourced to the powerful onboard computer, which is operating at ~400Mhz. Just a guess.




You don't need a driver for Epson's OmniLink. If your spoolsv.exe isn't working, look into this though.



In the world of printers, particularly the POS ones, there are two common approaches, OPOS and Windows print queues. And there's also the work-around like the virtual serial port. But there seems to be another approach out there too ... the driver is installed but the software seems to be writing directly to the port rather than using the windows spooler.


If you look at the spooler ports when an Epson USB printer is installed for example, there is a ESDPRT001 ... could it be that the POS app is writing to the port directly and bypassing the whole spooler?



According to Epson's product description of OmniLink no driver is required. It is quite possible that the spooler has been outsourced to the powerful onboard computer, which is operating at ~400Mhz. Just a guess.



You don't need a driver for Epson's OmniLink. If your spoolsv.exe isn't working, look into this though.


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