1 tus qauv sab hauv ntawm lub tshuab luam ntawv laser
Tus qauv sab hauv ntawm lub tshuab luam ntawv laser muaj plaub ntu loj, raws li qhia hauv daim duab 2-13.
Daim duab 2-13 tus qauv sab hauv ntawm lub tshuab luam ntawv laser
(1) Chav laser: emits cov nqaj Laser nrog cov ntawv xov xwm los nthuav tawm lub nruas duab.
(2) Daim Ntawv Pub Ntawv Teev: Tswj cov ntawv kom nkag mus rau lub tshuab luam ntawv ntawm lub sijhawm tsim nyog thiab tawm lub tshuab luam ntawv.
(3) Chav tsim khoom lag luam: npog rau ntawm lub nruas nruas nrog toner los ua ib daim duab uas tuaj yeem pom los ntawm lub qhov muag liab qab, thiab hloov nws mus rau saum npoo ntawm daim ntawv.
(4) Txhim Kho Chav Nyob: Lub toner npog cov ntawv ntawm daim ntawv yog melted thiab khov kho ntawm daim ntawv siv siab thiab cua sov.
2 ua haujlwm ua haujlwm ntawm lub tshuab luam ntawv laser
Lub tshuab luam ntawv laser yog ib qho tso zis uas ua ke cov tshuab laser xov tooj cua tshuab thiab hluav taws xob kev yees duab. Laser printers muaj cov haujlwm sib txawv vim yog cov qauv sib txawv, tab sis cov qauv ua haujlwm tau zoo ib yam.
Siv cov qauv hp laser printers ua piv txwv, cov ua haujlwm ua haujlwm tau yog raws li hauv qab no.
(1) Thaum tus neeg siv xa cov ntawv luam tawm rau lub tshuab luam ntawv los ntawm cov ntaub ntawv kev hloov kho lub computer, thiab thaum kawg xa mus rau tus tswj hwm lub ntsiab.
(2) Lub ntsiab tswj pawg tswj hwm tau txais thiab txhais cov ntaub ntawv binary uas xa los ntawm tus tsav tsheb, kho nws rau lub teeb laser, thiab tswj kav lub teeb raws li cov ntaub ntawv no. Nyob rau tib lub sijhawm, saum npoo ntawm lub nruas nruas yog them los ntawm cov cuab yeej them. Tom qab ntawd lub laser nqaj nrog cov ntaub ntawv cov duab yog tsim los ntawm cov laser scannning ib feem los ua lub nruas duab. Cov duab hluav taws xob uas tsis muaj latent yog tsim nyob rau saum npoo ntawm lub toner nruas tom qab kis tau.
(3) Tom qab lub toner cartridge yog nyob rau hauv kev sib cuag nrog kev tsim cov kab ke, cov duab latent ua cov duab pom. Thaum dhau los ntawm kev hloov pauv, lub tujer pauv mus rau daim ntawv nyob rau hauv kev txiav txim ntawm hluav taws xob teb ntawm lub tshuab hloov khoom.
(4) Tom qab hloov chaw tiav, daim ntawv tiv toj hluav taws xob-dissipating shothoth, thiab tawm tus nqi ntawm daim ntawv rau hauv av. Thaum kawg, nws nkag mus rau hauv qhov kev ntsuas kub siab, thiab cov duab thiab cov ntawv sau tsim los ntawm lub tujer tau ua ke ua ke.
(5) Tom qab cov ntaub ntawv cov duab luam tawm, cov cuab yeej ntxuav tawm ntawm lub toner tsis muaj neeg nyiam, thiab nkag mus rau lub voj voog ua haujlwm tom ntej.
Txhua cov txheej txheem ua haujlwm saum toj no yuav tsum tau mus txog xya kauj ruam: Kev them, kev loj hlob, hloov chaw, kev tshem tawm, kho lub zog, thiab ntxuav.
1>. Them
Txhawm rau ua cov duab nruas nruas nqus toner raws li cov ntaub ntawv duab, cov duab nruas duab yuav tsum tau them ua ntej.
Tam sim no muaj ob txoj kev them rau cov luam ntawv ntawm kev ua lag luam, ib qho yog Cork them thiab lwm tus yog them nyiaj rau cov menyuam them, ob leeg uas muaj lawv tus yam ntxwv.
Corona them yog ib txoj kev them nqi indirect uas siv cov kauj xaim hluav taws xob ntawm lub nruas hlau sib tw ua ib qho chaw nruas hlau ua lwm yam hluav taws xob. Thaum luam tawm lossis luam ntawv, lub tshuab hluav taws xob ntau heev tau thov rau cov xaim, thiab qhov chaw ib ncig ntawm cov hlau cov ntawv muaj zog teb. Raws li kev nqis tes ua ntawm hluav taws xob teb, ions nrog tib lub polarity raws li Corona Hlau ntws mus rau saum npoo ntawm cov duab nruas. Txij li lub photoreceptor rau saum npoo ntawm lub nruas nruas muaj lub siab tsis kam nyob hauv qhov tsaus ntuj, yog li lub peev xwm saum npoo ntawm lub nruas nruas yuav nce mus ntxiv. Thaum lub peev xwm nce mus rau cov peev txheej siab tshaj plaws, tus txheej txheem them tas. Qhov tsis zoo ntawm txoj kev them no yog tias nws yooj yim los tsim hluav taws xob thiab ozone.
Them cov menyuam them yog tus them tus nqi them, uas tsis tas yuav them hluav taws xob siab thiab yog tus phooj ywg zoo ib puag ncig. Yog li ntawd, feem ntau laser printers siv cov menyuam uas them nyiaj them.
Cia peb coj txoj kev them nqi ntawm cov menyuam uas them nyiaj ua piv txwv kom nkag siab tag nrho cov txheej txheem ua haujlwm ntawm lub tshuab luam ntawv laser.
Ua ntej, lub high-voltage Circuita Tshooj Generates Kev Nrov Siab, uas yuav them rau cov hluav taws xob tsis zoo los ntawm kev them cov khoom sib txuas. Tom qab cov duab nruas, tus them cov menyuam tig synchronously rau ib lub voj voog, tag nrho cov nplaim hluav taws xob tau them tus nqi tsis zoo, raws li muaj nyob hauv daim duab 2-14.
Daim Duab 2-14 Daim Duab Schematic Ntawm Kev Them
2>. nphav
Kev kis tau yog ua nyob ib ncig ntawm lub nruas duab, uas tau nthuav tawm nrog lub nqaj laser. Qhov saum npoo ntawm lub nruas duab yog ib txheej photsensitive txheej npog lub npoo ntawm cov txhuas aluminium, thiab cov neeg ua tus coj ua txhuas aluminium yog grounded.
Cov duab thaij duab yog cov khoom siv photensitive, uas yog tus cwj pwm los ntawm kev coj ua thaum raug rau lub teeb, thiab insulating ua ntej kis tau. Ua ntej raug, lub chaw hnav ris tsho yog them los ntawm lub chaw them nyiaj, thiab kev coj ua ntawm cov neeg saib xyuas kom sai li cas, yog li tus nqi tawm mus rau hauv av los ua cov ntawv sau rau ntawm daim ntawv luam ntawv. Qhov chaw tsis irradiated los ntawm lub laser tseem tswj hwm tus nqi qub, tsim thaj chaw dawb ntawm daim ntawv luam ntawv. Txij li cov duab cim no tsis pom, nws yog hu ua tus ntsuas hluav taws xob latentatic.
Ib lub teeb liab synchronous sensor tseem tau muab nruab rau hauv lub scanner. Txoj haujlwm ntawm cov sensor no yog kom ntseeg tau tias qhov kev ntsuas kom zoo sib xws yog li lub ntsej muag laser irradiated nyob rau saum npoo ntawm cov duab nruas yuav ua tiav qhov kev xav tau zoo tshaj plaws.
Lub teeb laser tawm ntawm lub nqaj Laser nrog cov ntaub ntawv cim teeb tsa, yog li pawg Lens, yog li scanning lub cim duab nruas kab tav toj tav xis. Lub cev muaj zog loj tsav cov duab nruas tseem ceeb kom paub cov cav ntsug ntawm lub Laser emitting teeb. Lub hauv paus ntsiab lus raug tshwm sim hauv daim duab 2-15.
Daim Duab 2-15 daim duab schematic ntawm kev kis
3>. kev loj hlob
Kev txhim kho yog cov txheej txheem ntawm kev siv lub hauv paus ntsiab lus ntawm tib-sib deev repulsion thiab rov qab-txiv neej nyiam hluav taws xob tsis pom kev rau cov duab pom. Muaj cov khoom siv hlau nplaum hauv nruab nrab ntawm cov menyuam sib nqus (tseem hu ua cov hlau nplaum sib nqus
Thaum lub nruas nruas tig mus rau txoj haujlwm uas nws muaj kev sib cuag nrog lub voos sib tw uas tsis muaj kev txhim kho ntawm lub taub hau, thiab yuav tsis nqus lub toner; Thaum lub sij hawm uas yog irradiated los ntawm laser muaj cov duab sib txawv ntawm cov duab sib deev uas muaj lub ntsej muag zoo nkauj, thiab tom qab ntawd cov duab sib deev uas tau tsim nyob rau hauv daim duab 2-16.
Daim duab 2-16 txoj kev tsim qauv kev txhim kho
4>. Hloov Luam Ntawv
Thaum lub tujer pauv mus rau ib puag ncig ntawm daim ntawv luam ntawv nrog lub nruas duab, muaj yog hloov khoom siv nyob sab nraum qab ntawm daim ntawv hloov siab rau sab nraum qab ntawm daim ntawv. Vim tias qhov hluav taws xob hloov pauv tau siab dua li qhov hluav taws xob nruas, cov duab kos, thiab cov ntawv sau ua ke ntawm lub chaw them nyiaj, raws li muaj nyob hauv daim duab 2-17. Cov duab thiab cov ntawv pom nyob rau saum npoo ntawm daim ntawv luam ntawv, raws li muaj nyob hauv daim duab 2-18.
Daim Duab 2-17 Daim Duab Schematic Ntawm Hloov Machine Luam Ntawv (1)
Daim Duab 2-18 Daim Duab Schematic Ntawm Hloov Machine Luam Ntawv (2)
5>. Kev Txom Nyem
Thaum lub toner duab hloov mus rau daim ntawv luam ntawv, lub toos tsuas yog npog cov ntawv, thiab cov qauv duab tsim los ntawm lub toner yog yooj yim rhuav tshem cov ntawv luam ntawv conveying txheej txheem. Txhawm rau kom muaj kev ncaj ncees ntawm cov duab toner ua ntej kho, tom qab hloov chaw, nws yuav dhau los ntawm cov cuab yeej tua neeg zoo li qub. Nws muaj nuj nqi yog tshem tawm polarity, neutralize tag nrho cov nqi thiab ua kom cov ntawv tuaj yeem nkag mus rau cov khoom lag luam zoo thiab ua kom muaj cov zis luam tawm zoo dua qub, yog qhia hauv Daim Duab 2-19.
Daim Duab 2-19 Daim Duab Schematic ntawm Lub Zog Kev Ntaus
6>. kho
Cua sov thiab kho yog cov txheej txheem ntawm kev thov nias thiab cua sov rau cov ntawv luam tawm ntawm daim ntawv luam ntawv los ua cov duab luam ntawv rau ntawm daim ntawv.
Lub ntsiab tivthaiv ntawm toner yog cob, lub suab me me ntawm Toner yog kwv yees li 100°C, thiab qhov ntsuas kub ntawm cov neeg siv hluav taws xob cua sov ntawm cov chav kho yog li ntawm 180°C.
Thaum lub sij hawm cov txheej txheem luam ntawv, thaum ntsuas kub ntawm tus fuser ncav cuag qhov chaw ua haujlwm kub txog li 180°C Thaum cov ntawv uas nqus tas toner kis kom dhau los ntawm cov neeg siv cua sov (tseem hu ua lub siab dua) thiab cov roj qis dua), cov txheej txheem fusing yuav ua tiav. Qhov tsim kom muaj qhov kub siab kub lub toner, uas yaj lub toner ntawm daim ntawv, yog li sib sau duab thiab cov ntawv nyeem, raws li qhia hauv daim duab 2-20.
Daim Duab 2-20 lub ntsiab cai kos duab kos duab ntawm kev kho
Vim tias cov neeg siv hluav taws xob kub yog coated nrog ib txheej uas tsis yooj yim rau tus toner, lub toner yuav tsis ua raws li cov nplaim hluav taws xob vim qhov kub kub. Tom qab kho, daim ntawv luam ntawv tau sib cais los ntawm cov neeg muaj cua sov los ntawm kev sib cais taw thiab xa tawm ntawm lub tshuab luam ntawv los ntawm cov ntawv pub rau cov menyuam.
Cov txheej txheem ntxuav yog los txhuam lub toner ntawm lub nruas nruas nruas uas tsis tau hloov los ntawm cov ntawv rau lub tais toner rau hauv.
Thaum lub sij hawm hloov chaw, lub toner duab ntawm lub nruas nruas tsis tuaj yeem hloov pauv rau daim ntawv. Yog tias nws tsis huv, lub toner tshuav nyob rau saum npoo ntawm lub nruas duab yuav tau nqa mus rau hauv qhov kev sib tw luam tawm tom ntej, rhuav tshem cov duab tshiab khiv. , yog li cuam tshuam luam tawm zoo.
Cov txheej txheem ntxuav yog ua los ntawm cov roj hmab scraper, nws txoj haujlwm yog ntxuav cov duab nruas duab ua ntej ntawm Photostritive Nroo luam ntawv. Vim hais tias cov hniav ntawm cov roj hmab tu scraper yog hnav-resistant thiab hloov tau, hniav txiav ib lub cav nrog cov nplaim duab. Thaum cov duab nruas nruas tig, lub toner nyob rau saum npoo yog scraped rau hauv lub tais toner rau hauv daim duab, raws li qhia hauv daim duab 2-21 qhia.
Daim duab 2-21 schematic daim duab ntawm kev tu
Lub Sijhawm Post: Feb-20-2023