1Qhov kub thiab txias tsis ruaj khov ntawm qhov chaw tsim khoom
Thaum qhov kub thiab av noo ntawm qhov chaw tsim khoom tsis ruaj khov, qhov dej uas daim ntawv nqus lossis poob los ntawm qhov chaw ib puag ncig yuav tsis sib xws, ua rau qhov tsis ruaj khov ntawm kev nthuav dav ntawm daim ntawv.

2 Lub sijhawm khaws cov ntawv tshiab tsis ua raws li cov qauv xav tau
Vim tias cov khoom siv ntawm daim ntawv xav tau ib lub sijhawm kom ruaj khov, yog tias lub sijhawm khaws cia tsis txaus, nws yuav ua rau tsis ruaj khov ntawm kev nthuav dav ntawm daim ntawv.

3Kev ua tsis tiav ntawm Offset Press tsab ntawv system
Qhov ua tsis tiav ntawm lub kaw lus dej ntawm lub tshuab luam ntawv ua rau tsis ruaj khov ntawm kev tswj tus nqi ntawm cov kua dej ntawm qhov chaw ntawm lub phaj luam ntawv, uas ua rau tsis ruaj khov ntawm kev nthuav dav thiab kev cog lus ntawm daim ntawv vim qhov tsis sib xws ntawm kev nqus dej.

 4Kev luam ntawv ceev hloov pauv ntau dhau
Hauv cov txheej txheem ntau lawm, qhov ceev ntawm kev luam ntawv yog ceev thiab qeeb. Lub sijhawm no, peb yuav tsum tau them sai sai rau qhov cuam tshuam ntawm qhov ceev ntawm kev luam ntawv rau qhov ruaj khov ntawm daim ntawv nthuav dav.

5Lub kaw lus tswj kev nruj ntawm cov xovxwm gravure tsis ruaj khov
Lub kaw lus tswj kev nruj ntawm lub tshuab luam ntawv gravure tsis ruaj khov, uas tseem yuav ua rau tsis ruaj khov ntawm kev nthuav dav ntawm daim ntawv. Yog tias tus nqi nruj hloov pauv ntau heev, nws yog qhov tsim nyog los xav txog qhov cuam tshuam ntawm qhov no rau qhov tsis ruaj khov ntawm kev nthuav dav ntawm daim ntawv