How to do if the printer driver software is from unidentified developer?

Guangdong Shuangma Technology Co., Ltd.
Business Type:Manufacturer , Trade Company
Product Range:Packaging Label , Flexographic Printers , Scanners
Products/Service:Thermal Label Printers , Barcode Scanners , Printed Labels , Thermal Labels , Thermal Ribbon , Label Rewinder and Label Holder
Certificate:FSC , CB , CCC , CE , FCC , Test Report
Company Address:Rm1601, Qinjian Bldg, No.118 Huangpu West Avenue, Tianhe Dist, Guangzhou city, Guangdong, Guangzhou, Guangdong, China

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