Serial Port Emulator
COM Port Data Emulator - Freeware the free update (since the version 2.7.0 to the latest version 2.7.2 build 523. May 24, 2018.). Advanced Serial Port Monitor.
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- Version:
- 7.0
- System Requirements:
- Windows XP, Vista, Windows 7, Windows 8, Windows 10
Windows Server 2003, 2008, 2012, 2016
My question is similar to Setting up a virtual Com Port?, which has no answers.
I have software that can only print to a printer on COMx, a printer with a USB port, and a computer with a USB port but no serial ports, so the oft-suggested physical Serial-to-USB adapter isn't a solution. I'm looking for software that tricks Windows 7 into mapping a virtual COM port to a physical USB port. I'm certain that if the software I'm using sends its stream of bits to the USB port that the printer will work just fine. How do I trick the software into thinking it's printing to COMx when it's actually printing to USBx?
Internet searches only turn up drivers for some specific hardware Serial-to-USB adapter, but that's not what I'm looking for as I don't have that hardware. I found a Microsoft forum where they suggested changing the USB port's label in Device Manager, but we never found anything like what they described; perhaps that's possible with a different USB controller than we have.
4 Answers
There is a simple way to do it using standard Windows commands. Lee Harrison's link shows this command, but here's a short description. Start by making the printer shareable (from Printer Properties > Sharing tab).
Now, start a command prompt and type:
Here, pc_name is the name of the sharing PC, and printer_share_name is the share name you gave the printer when you set up the share.
From then on, anything you send to COM1 will be re-routed to the printer.
There is one proviso however - and it applies regardless of which method you use to get the data to the printer, hardware or software:
As your program only knows about COM1, I assume it will send plain text to the printer. Many USB-only printers do NOT understand plain text, and will just ignore it altogether. Printers that do this are called host-based printers, where the Windows graphics engine converts the page into dots on the paper, rather than letting the printer do the conversion. They are mostly the low cost printers, especially inkjets but also some lasers. Printers that do understand text need to support a language called PCL5. PCL6 printers usually also support PCL5, but PCL3 printers do not.
If you tell me your printer model I can check what language it supports.
We use this solution in the company.
Siemens cnc software downloads. Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC. Application software can access the USB device in the same way as it would access a standard COM port.
Here is the Instalation Guide.
This is a very specific scenario, but the following directions may work for you:http://www.decompile.com/dataflex/tips/usb_printer.htm
Directly from that link:
However, I don't know if COM connections will even be selectable in your case since your PC doesn't have any to begin with. You may be able to purchase a USB/COM adapter just to gain access to these values, then use the above directions to forward to your USB printer.
Sounds kinda hack-ish but when you're running old software sometimes this is what it comes down. Whatever the solution, I don't know that it will appear to be elegant!
Virtual Serial Port Emulator
The final thing would be to just purchase a USB to serial/parallel adapter and a cheap printer that fits the specs. If you use this software in business, I think that's an easily justifiable expense.
If you need to emulate the serial port, this software make that kind of work https://www.eltima.com/products/vspdxp/ But I have no idea, whether you can talk to your USB with the emulated COM..
protected by Community♦May 15 at 12:47
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