1. Lub tshuab luam ntawv siab zoo - lub khob khob gearless flexo luam ntawv xovxwm yog muaj peev xwm ua cov zoo luam tawm nrog cov xim zoo nkauj thiab cov ntawv sau npe zoo. Qhov no ua kom pom tseeb tias kev lag luam tuaj yeem tsim cov khoom ntim ntim uas ua tau raws cov qauv siab tshaj plaws ntawm kev ua tau zoo thiab zoo nkauj.
2. Txo cov khib nyiab - cov ntawv khob gearless flexo luam ntawv xovxwm yog nruab nrog cov kev khib nyiab ntau uas txo cov khoom noj hauv qab zib thiab ua kom tau txais kev hloov pauv hauv Ink. Qhov no tsis tsuas pab cov lag luam txo qis lawv qhov cuam tshuam ib puag ncig tab sis kuj txo lawv cov nuj nqis.
3. Kev tsim tawm ntau ntxiv - cov qauv khob flexo luam ntawv lub sijhawm, cov sijhawm hloov dua tshiab hloov lub sijhawm, thiab ntau dua luam ntawv kev lag luam. Qhov no txhais tau tias kev lag luam tuaj yeem tsim cov khoom ntim ntau dua nyob rau hauv tsawg dua.
