31409950xerographyPT2026-03-30 20:50:13UF31409957xeroxingNDUF31409951copying, electrostaticNDUF31409952electrostatic copyingNDUF31409953electrostatic printingNDUF31409954electrostatic processesNDUF31409955printing, electrostaticNDUF31409956xerographic processNDBT31371067electrographyPTRT31401983electrophotographic printsPT