OPOS CheckHealth returns OPOS_EX_NOINPUT (10007), OPOS for .NET

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I've installed the latest EPSON OPOS ADK Version2.80E UPOS 1.14 and OPOS Common Control Objects 1.14.001 and OPOS for .NET assemblies on two machines with Windows 10 and Windows 7 to be able to communicate with Epson Slip Printer TM-U590.

I've also setup the configuration in registry like COM port, BaudRate etc.

I'm using OPOS for .NET assemblies to communicate with the printer. On Windows 10 everything works but on Windows 7 CheckHealth method returns

OPOS_E_ILLEGAL (10007, OPOS_EX_NOINPUT).

POS Printer Check Healt utility from EPSON OPOS ADK returns OPOS_E_ILLEGAL, 10007 (0x00002717). I have no idea why.

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c#opos

1 Answers

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Details and countermeasures are described in OPOS ADK manual / application development guide.
Please deal accordingly.

In addition, are you calling the CheckHealth method after setting the paper?
If the parameter is External or Interactive, I think that paper must be loaded in order to actually print.

If you do not solve the problem by checking them, please contact EPSON support.