Thawj theem ntawm kev tsim cov xovxwm luam ntawv

Thawj theem yog los ntawm thaum ntxov 1980s mus rau thaum ntxov 1990s. Cov theem no yog lub hnub qub ntawm txoj kev loj hlob ntawm offset printing technology. Qhov siab tshaj plaws luam ntawv ceev ntawm daim ntawv-fed offset xovxwm lub sijhawm no yog 10,000 luam tawm / teev. Lub sij hawm ua ntej hloov kho rau lub tshuab luam ntawv plaub xim ua ntej luam ntawv feem ntau yog li 2 teev. Kev tswj tsis siv neeg ntawm cov xovxwm luam ntawv feem ntau tsom rau ntawm cov ntawv tsis siv neeg-cov kabmob, tsis siv neeg xa ntawv, tsis siv neeg tu, tsis siv neeg tshawb pom cov xim number case, tsis siv neeg hloov cov number case ntim, thiab cov chaw taws teeb tswj ntawm kev sau npe. Ntxiv rau cov xim ib leeg thiab ob-xim xovxwm thaum lub sijhawm no, yuav luag txhua lub chaw tsim khoom siv offset xovxwm kuj muaj peev xwm ntawm plaub-xim xovxwm, thiab cov tuam ntxhab feem ntau muaj peev xwm tsim cov ntawv xa cov tshuab rau ob sab luam ntawv.