1 Nhazi dị n'ime nke igwe nbipute laser
Nhazi ime nke igwe nbipute laser nwere akụkụ anọ dị mkpa, dịka egosiri na Foto 2-13.
Foto nke 2-13 Nhazi dị n'ime nke igwe nbipute laser
(1) Ngalaba Leza: na-ewepụta ọkụ leza nwere ozi ederede iji kpughee drum na-emetụta foto.
(2) Ngalaba Nri Akwụkwọ: chịkwaa akwụkwọ ahụ ka ọ banye na igwe nbipute n'oge kwesịrị ekwesị wee pụọ na igwe nbipute ahụ.
(3) Ngalaba Mmepe: Jiri toner kpuchie akụkụ ahụ ekpughere nke drum fotosensitive iji mepụta foto nke anya gba ọtọ nwere ike ịhụ, wee bufee ya n'elu akwụkwọ ahụ.
(4) Ngalaba Ndozi: A na-agbaze toner nke kpuchiri elu akwụkwọ ahụ ma sie ike n'elu akwụkwọ ahụ site na iji nrụgide na ikpo ọkụ.
2 Ụkpụrụ ọrụ nke ngwa nbipute laser
Igwe nbipute laser bụ ngwaọrụ mmepụta nke jikọtara teknụzụ nyocha laser na teknụzụ onyonyo eletrọniki. Igwe nbipute laser nwere ọrụ dị iche iche n'ihi ụdị dị iche iche, mana usoro ọrụ na ụkpụrụ bụ otu.
Dịka ọmụmaatụ, site n'iji igwe nbipute laser HP nkịtị, usoro ọrụ ahụ bụ ndị a.
(1) Mgbe onye ọrụ zigara onye na-ebi akwụkwọ iwu mbipụta site na sistemụ arụmọrụ kọmputa, a na-ebu ụzọ gbanwee ozi eserese a ga-ebipụta ka ọ bụrụ ozi abụọ site na draịva onye na-ebi akwụkwọ, ma mechaa ziga ya na bọọdụ njikwa isi.
(2) Isi ihe njikwa na-anata ma na-akọwa ozi abụọ nke onye ọkwọ ụgbọala zitere, na-agbanwe ya na ogwe laser, ma na-achịkwa akụkụ laser ahụ ka ọ na-ewepụta ìhè dịka ozi a si dị. N'otu oge ahụ, ngwaọrụ chaja na-ana elu nke drum fotosensitive. Mgbe ahụ, akụkụ nyocha laser na-emepụta ogwe laser nwere ozi eserese iji kpughee drum fotosensitive. A na-emepụta onyonyo electrostatic latent n'elu drum toner mgbe ekpughere ya.
(3) Mgbe katrij toner metụrụ sistemụ na-emepe emepe aka, onyonyo zoro ezo na-aghọ eserese a na-ahụ anya. Mgbe ọ na-agafe na sistemụ mbufe, a na-ebufe toner ahụ na akwụkwọ ahụ n'okpuru ọrụ nke mpaghara eletriki nke ngwaọrụ mbufe ahụ.
(4) Mgbe e mechara mbufe ahụ, akwụkwọ ahụ na-emetụ aka na sawtooth nke na-agbaze ọkụ eletrik, wee na-awụpụ chaja dị na akwụkwọ ahụ n'ala. N'ikpeazụ, ọ na-abanye na sistemụ ndozi okpomọkụ dị elu, a na-etinyekwa eserese na ederede nke toner mepụtara n'ime akwụkwọ ahụ.
(5) Mgbe e bipụtachara ozi eserese ahụ, ngwaọrụ nhicha ahụ wepụrụ toner a na-ebufeghị, wee banye na usoro ọrụ ọzọ.
Usoro ọrụ niile dị n'elu kwesịrị ịgafe usoro asaa: ịchaji, ikpughe, mmepe, nnyefe, iwepụ ike, idozi, na nhicha.
1>. Chajị
Iji mee ka drum na-amịkọrọ toner dịka ozi eserese si dị, a ga-ebu ụzọ chaji drum na-amịkọrọ foto.
Ugbu a, e nwere ụzọ abụọ e si achaji ngwa nbipute n'ahịa, otu bụ achaji corona, nke ọzọ bụ achaji roller chaja, ha abụọ nwere njirimara ha.
Nchaji Corona bụ ụzọ nchaji na-apụtaghị ìhè nke na-eji ihe na-eduzi drum nke na-ese foto dị ka elektrọd, a na-etinyekwa waya ígwè dị gịrịgịrị n'akụkụ drum nke na-ese foto dị ka elektrọd ọzọ. Mgbe a na-edegharị ma ọ bụ na-ebipụta ya, a na-etinye voltaji dị elu na waya ahụ, oghere gbara waya ahụ gburugburu na-emepụta oghere eletrik siri ike. N'okpuru ọrụ nke ubi eletrik, ion nwere otu polarity dị ka waya corona na-asọba n'elu drum nke na-ese foto. Ebe ọ bụ na fotoreceptor dị n'elu drum nke na-ese foto nwere nnukwu nguzogide n'ọchịchịrị, chajị agaghị apụ apụ, yabụ ikike elu nke drum nke na-ese foto ga-anọgide na-ebili. Mgbe ikike ahụ ruru ikike nnabata kachasị elu, usoro nchaji ahụ na-akwụsị. Ihe ọghọm nke usoro nchaji a bụ na ọ dị mfe ịmepụta radieshon na ozone.
Nchaji rola chajị bụ ụzọ e si achaji kọntaktị, nke anaghị achọ voltaji chajị dị elu ma dịkwa mma maka gburugburu ebe obibi. Ya mere, ọtụtụ ndị na-ebi akwụkwọ laser na-eji rola chajị chajị iji chajị.
Ka anyị were chajị nke chajị roller dị ka ihe atụ iji ghọta usoro ọrụ niile nke igwe nbipute laser.
Nke mbụ, akụkụ sekit voltaji dị elu na-emepụta voltaji dị elu, nke na-eji ọkụ eletrik na-adịghị mma edobere agbakọ elu drum fotosensitive site na ihe e ji achaji. Mgbe drum fotosensitive na roller chaja na-agbagharị n'otu oge maka otu okirikiri, a na-anata chaja na-adịghị mma otu elu nke drum fotosensitive, dịka egosiri na Foto 2-14.
Foto 2-14 Ihe osise eserese nke chaja
2>. mkpughe
A na-eme ihe ngosi gburugburu drum na-egosi mmetụta foto, nke a na-eji ọkụ laser ekpughe. Elu drum na-egosi mmetụta foto bụ oyi akwa na-egosi mmetụta foto, oyi akwa na-egosi mmetụta foto na-ekpuchi elu nke onye na-eduzi alloy alloy aluminum, ebe onye na-eduzi alloy alloy aluminum na-adabere n'ala.
Ihe na-eme ka foto dị nro bụ ihe na-eme ka foto dị nro, nke a na-eji ya eme ka ọ na-agagharị mgbe a na-ekpughe ya n'ìhè, na-ekpuchikwa ya tupu e kpughee ya. Tupu e kpughee ya, ngwaọrụ chaja na-ana chaja otu chaja ahụ, ebe a na-eme ka o doo anya mgbe laser ahụ kpughee ya ga-aghọ ihe na-eduzi ya ngwa ngwa ma na-eduzi ya na ihe na-eduzi ya na aluminum alloy, ya mere a na-ahapụ chaja ahụ n'ala iji mepụta mpaghara ederede na akwụkwọ mbipụta ahụ. Ebe laser ahụ na-anaghị ekpughere ka na-ejigide chaja mbụ ahụ, na-emepụta ebe tọgbọ chakoo na akwụkwọ mbipụta ahụ. Ebe ọ bụ na a naghị ahụ onyinyo agwa a anya, a na-akpọ ya onyonyo electrostatic latent.
A na-etinyekwa ihe mmetụta mgbaàmà synchronous na nyocha ahụ. Ọrụ nke ihe mmetụta a bụ ijide n'aka na anya nyocha ahụ kwekọrọ na ya ka ìhè laser a na-enwu n'elu drum fotosensitive nwere ike nweta mmetụta onyonyo kachasị mma.
Oriọna laser ahụ na-ewepụta ìhè laser nwere ozi agwa, nke na-enwu na prism na-agbanwe agbanwe nke nwere ọtụtụ akụkụ, prism na-egosipụtakwa ìhè laser ahụ n'elu drum na-agbanwe agbanwe site na otu lenses, si otú a na-enyocha drum na-agbanwe agbanwe n'usoro. Moto bụ isi na-akpali drum na-agbanwe agbanwe ka ọ na-aga n'ihu iji hụ nyocha kwụ ọtọ nke drum na-agbanwe agbanwe site na oriọna na-ewepụta laser. E gosiri ụkpụrụ ikpughe na Foto 2-15.
Foto 2-15. Eserese eserese nke mkpughe
3>. mmepe
Mmepe bụ usoro nke iji ụkpụrụ nke ịchụpụ nwoke na nwanyị na mmasị nwoke na nwanyị nke ọkụ eletrik iji gbanwee onyonyo zoro ezo nke electrostatic nke anya gba ọtọ ka ọ bụrụ eserese a na-ahụ anya. E nwere ngwaọrụ magnet n'etiti ihe ndọta magnet (a na-akpọkwa ihe ndọta magnet na-emepe emepe, ma ọ bụ ihe ndọta magnet maka mkpụmkpụ), ihe ndọta ahụ dị na ihe ntụ ntụ ahụ nwere ihe ndọta nke magnet nwere ike ịmịkọrọ, yabụ magnet dị n'etiti ihe ndọta magnet na-etolite ga-adọta toner ahụ.
Mgbe drum fotosensitive tụgharịrị gaa n'ọnọdụ ya na ihe ndọta magnetik na-etolite, akụkụ nke elu drum fotosensitive nke laser na-anaghị enwu nwere otu polarity dị ka toner, ọ gaghịkwa amịkọrọ toner; ebe akụkụ nke laser na-enwu nwere otu polarity dị ka toner. Kama nke ahụ, dịka ụkpụrụ nke ịchụpụ otu nwoke na nwanyị na ịdọta ndị na-abụghị nwoke na nwanyị si dị, a na-etinye toner n'elu drum fotosensitive ebe a na-enwu ọkụ laser, wee mepụta eserese toner a na-ahụ anya n'elu, dịka egosiri na Foto 2-16.
Foto 2-16 Eserese ụkpụrụ mmepe
4>. mbufe mbipụta
Mgbe e tinyere toner n'akụkụ akwụkwọ obibi akwụkwọ ahụ site na iji drum fotosensitive, e nwere ngwaọrụ mbufe n'azụ akwụkwọ ahụ iji tinye nnyefe nrụgide dị elu n'azụ akwụkwọ ahụ. N'ihi na voltaji nke ngwaọrụ mbufe dị elu karịa voltaji nke mpaghara ikpughe nke drum fotosensitive, eserese, na ederede nke toner mepụtara na-ebufe na akwụkwọ obibi akwụkwọ n'okpuru ọrụ nke mpaghara eletriki nke ngwaọrụ chaja, dịka egosiri na Foto 2-17. Eserese na ederede na-apụta n'elu akwụkwọ obibi akwụkwọ ahụ, dịka egosiri na Foto 2-18.
Foto 2-17 Ihe osise eserese nke mbipụta mbufe (1)
Foto 2-18 Ihe osise eserese nke mbipụta mbufe (2)
5>. Kpochapụ ọkụ eletrik
Mgbe e bufere onyonyo toner na akwụkwọ mbipụta, toner ahụ na-ekpuchi naanị elu akwụkwọ ahụ, nhazi onyonyo nke toner mepụtara na-emebi ngwa ngwa n'oge usoro mbufe akwụkwọ mbipụta. Iji hụ na onyonyo toner ahụ kwụsiri ike tupu edozi ya, mgbe ebufechara ya, ọ ga-agafe na ngwaọrụ mwepụ kwụsiri ike. Ọrụ ya bụ iwepụ polarity, iwepụ chaja niile ma mee ka akwụkwọ ahụ bụrụ nke na-anọpụ iche ka akwụkwọ ahụ wee banye na ngalaba ndozi ahụ nke ọma ma hụ na mbipụta mmepụta ahụ dị mma. Egosiri na Foto 2-19.
Foto 2-19 Ihe osise eserese nke mwepụ ike
6>. idozi
Ịkpọ ọkụ na idozi bụ usoro nke itinye nrụgide na ikpo ọkụ na onyonyo toner nke e tinyere n'akwụkwọ mbipụta iji gbazee toner ahụ ma mikpuo ya n'ime akwụkwọ mbipụta iji mepụta eserese siri ike n'elu akwụkwọ ahụ.
Isi ihe dị na toner bụ resin, ebe agbaze nke toner dị ihe dịka 100°C, na okpomọkụ nke ihe mkpuchi ọkụ nke ihe ndozi ahụ dị ihe dịka 180°C.
N'oge usoro mbipụta, mgbe okpomọkụ nke fuser ahụ ruru okpomọkụ a kara aka nke ihe dị ka 180°C mgbe akwụkwọ nke na-amịkọrọ toner gafere oghere dị n'etiti ihe mkpuchi ọkụ (nke a makwaara dị ka ihe mkpuchi elu) na ihe mkpuchi roba nrụgide (nke a makwaara dị ka ihe mkpuchi ala nrụgide, ihe mkpuchi ala), a ga-emecha usoro njikọta ahụ. Okpomọkụ dị elu nke emepụtara na-ekpo ọkụ toner ahụ, nke na-agbaze toner ahụ na akwụkwọ ahụ, si otú a na-emepụta onyonyo na ederede siri ike, dịka egosiri na Foto 2-20.
Foto 2-20 Ihe osise isi nke ndozi ahụ
Ebe ọ bụ na e ji ihe mkpuchi na-adịghị mfe ịrapara na toner kpuchie elu nke ihe mkpuchi na-ekpo ọkụ, toner agaghị arapara n'elu ihe mkpuchi na-ekpo ọkụ n'ihi oke okpomọkụ. Mgbe edozichara ya, a na-ekewapụ akwụkwọ mbipụta ahụ na ihe mkpuchi na-ekpo ọkụ site na mbọ nkewa ma ziga ya na igwe nbipute site na ihe mkpuchi na-enye akwụkwọ nri.
Usoro nhicha bụ ịkpụcha toner dị na drum fotosensitive nke a na-ebufebeghị site n'elu akwụkwọ ahụ gaa na ihe mkpofu toner.
N'oge a na-ebufe ihe onyonyo toner dị na drum na-agbanwe agbanwe, agaghị enwe ike ibufe onyonyo toner dị na drum na-agbanwe agbanwe na akwụkwọ ahụ kpamkpam. Ọ bụrụ na ehichaghị ya, a ga-ebuga toner fọdụrụ n'elu drum na-agbanwe agbanwe na usoro mbipụta ọzọ, na-emebi onyonyo ọhụrụ emepụtara, si otú a na-emetụta mma mbipụta.
A na-eji ihe e ji kpụcha rọba eme ihe nhicha ahụ, nke ọrụ ya bụ ihicha drum ahụ tupu usoro ọzọ nke ibipụta drum ahụ na-agbanwe agbanwe. Ebe ọ bụ na agụba nke ihe e ji kpụcha rọba ahụ anaghị emebi emebi ma na-agbanwe agbanwe, agụba ahụ na-emepụta akụkụ e bepụrụ ewepụ na elu drum ahụ. Mgbe drum ahụ na-agbanwe agbanwe, a na-eji ihe e ji kpụcha toner ahụ kpụcha ihe n'elu ya n'ime ihe mkpofu toner ahụ, dịka egosiri na Foto 2-21 egosiri.
Foto 2-21 Ihe osise eserese nke nhicha
Oge ozi: Feb-20-2023