1. Kev xa kis ntawm daim ntawv tso zis tso quav rov qab, xws li lub zog sib txuas, yuav tsum tau muab ntxiv nrog butter.
2. Lub tshuab rewinding feem ntau tsis muaj teeb meem. Qhov siv yooj yim yog tsis muaj dab tsi ntau tshaj li cov pinions me me. Yog tias ib qho ntxiv, kev luam ntawv riam yog yooj yim kom tawg. Cov menyuam cov hlua hlau yuav dhau los ua nyias dua tom qab ib xyoos thiab ib nrab ntawm kev thauj khoom, thiab nws yuav tsum thauj nws rov qab rau lub Hoobkas rau kev kho. Yog tias tus qauv embossing yuav tsum tau hloov nyob rau hauv cov steel yob embossing ntaus ntawv, nws yog ib qho tsim nyog yuav tsum thauj cov hlau dov rov qab rau thawj lub Hoobkas rau kev hloov kho, thiab nws yuav tsis muaj nqi ntau.
3. Ua tib zoo saib xyuas qhov voltage ntawm lub ntsuas cua yuav tsum ruaj khov, txwv tsis pub nws yooj yim mus hlawv lub cev muaj zog; xyuam xim rau kev nyiam huv, tsis txhob cia cov dej khib nyiab poob ntawm cov hlau thiab cov hlau.
