The error message "Failed to send the command. Check that the correct model is connected and that the printer is correctly connected and turned on." appears.

The error message "Failed to acquire the current settings. Check that the correct model is connected and that the unit is correctly connected and turned on." appears when I try to aquire and change the current settings in printer driver.

The error message "Failed to acquire the current settings. The parameters will be set to their default settings." appears.

When I try to use the database function, the error message "Code=800401f9 Msg: Error in the DLL Source: ADODB. Connection Description:" appears. What should I do?

"Setup start error code 2" (also "code 193", "code 216" or "code 267") appears when I try to install the driver. What should I do?

Error messages do not appear when using the USB connection of my printer.