Your cutting software must match the settings you just configured in Windows. Open your software (e.g., SignMaster). Go to or Device Settings .
Ensure Hardware Flow Control is selected in both Device Manager and your cutting software.
Ensure the model is set to or a generic DMPL/HPGL driver.
Windows 10 sometimes blocks older 721 drivers because they aren't digitally signed.
If the machine starts cutting random lines or "spaghetti," the flow control is wrong.
Your cutting software must match the settings you just configured in Windows. Open your software (e.g., SignMaster). Go to or Device Settings .
Ensure Hardware Flow Control is selected in both Device Manager and your cutting software. cutting plotter 721 driver windows 10
Ensure the model is set to or a generic DMPL/HPGL driver. Your cutting software must match the settings you
Windows 10 sometimes blocks older 721 drivers because they aren't digitally signed. " the flow control is wrong.
If the machine starts cutting random lines or "spaghetti," the flow control is wrong.
