JOJO duab ntawv tuam txhab yog lub chaw tsim khoom thiab kev muag khoom ntawm inkjet yees duab ntawv, number case thiab thermal hloov ntawv luam ntawv cov khoom siv khoom lag luam thiab lwm cov txheej txheem ntawm cov tub luam qib siab .Lub tuam txhab tau tshaj tawm cov khoom siv thiab cov twj paj nruag, nrog ntau yam ntawm kev ua haujlwm siab. thiab cov neeg ua haujlwm thev naus laus zis