giao trinh sua chua máy in

8/11/2019 giao trinh sua chua my in

1/21

Bn quy#n thu&c: http://hocnghetructuyen.vn

TRUNG TM )O T*O CNG NGH,CAO BCH KHOA78 Ph.V0ng H N&i; )T: (04) 6 278 0670

I S1)2KH4I T6NG QUT C8A MY IN LASER

1 S!"kh%i t'ng qut c)a my in Laser.

1.1 - S;ng qut.

Hnh 1 S!"kh%i c'a my in Laser.

My in Laser g=m cc b&ph?n chnh sau


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- Ghi tn hi@u bOng tia Laser chiDu tKh&p gC;ng xu.ng.- B&ph?n triAn khai, lEy mFc (Developing unit) - b&ph?n ny c cc chi

tiDt l TrMc tK v GBt nhP

Hnh 3 - Kh%it0o 2nh trn my in Laser.

- B&ph?n chuyAn giao mFc sang giEy (Transfer charging roller) - b&ph?nny c chi tiDt l Tr.ng chuyAn giao

*. B&ph?n qut tia Laser - H&p gC;ng (LASER/SCANNER UNIT) - b&ph?nny cn g0i l [email protected] quang h0c hay kh.i quang, bn trong g=m cc chi tiDt sau


4/21



- BD sensor - Cm biDn tia laser

Hnh 4 - B3ph4n qut tiaLaser (h3p g5ng) trn my in Laser.

*. Kh.i giao tiDp (FORMATTER) L kh.i giao tiDp vQi my tnh


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Hnh 5 - Kh%i giao ti6p (FORMATTER) trn my in Laser.*. [email protected] cung cEp giEy (PAPER PICKUP/FEED SYSTEM) - g=m cc b&ph?n:

- Khay vo giEy chnh (Main input tray).- Khay vo giEy Cu tin (Priority input tray)- B&ph?n


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- B&ph?n sEy c nhi@m vMsEy cho cc hBt mFc nng chy v bm chVt vogiEy Wcu.i qa trnh in, trong b&ph?n ny c cc chi tiDt nhCThanh nhi@t vo sEy

Hnh 7 - B3ph4n s7y trn my in Laser.

2 - Nhi,m v/c)a cc thnh ph0n trn my in.

2.1 - Nhi@m vMcXa kh.i ngu=n:Kh.i ngu=n cXa my in Laser c nhi@m vMcung cEp cc


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- Kh.i ngu=n cXa my in Laser hoBt


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- Kh.i


9/21



Hnh 11 - Kh%i !i-u khi.n !i-u khi.n kh%i cao p ho0t !3ng !.t0o ra cc !i*n pcao -600V, -300V c7p cho cc b3ph4n c'a Cartridge.

- CPU


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Hnh 15 Cartridge (H*th%ng t0o 2nh) l b3ph4n c th.tho r?i ra khBi my in

Hnh16 - H3p Cartridge (H*th%ng t0o 2nh)

*. Qu trnh hoBt


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- Qu trnh triAn khai lEy mFc: L qu trnh mFc


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Hnh 19 - Cc chi ti6t bn trong h3p Cartridge.

2.4 - B&ph?n qut tia Laser - H&p gC;ng - (LASER/SCANNER UNIT)B&ph?n qut tia Laser hay cn g0i l kh.i quang c nhi@m vMtBo ra tiaLaser qut ln b#mVt tr.ng in


15/21



Hnh 21 - V@tr h3p g5ng trn my in Canon 2900

*. PhC;ng php ghi tn hi@u bOng tia Laser.

Hnh 22 Ghi tn hi*u ln tr%ng bFng tia Laser.
http://hocnghetructuyen.vn/http://hocnghetructuyen.vn/


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- NgCfi ta sRdMng tia Laser lm trung ho


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Hnh 24 Bn ngoi h3p g5ng v m0ch !i-u khi.n tia Laser.

Hnh 25 Cc chi ti6t bn trong h3p g5ng

-

Diode Laser c nhi@m vMpht ra tia laser


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2.5 - Kh.i giao tiDp: (Card FORMATTER)Kh.i giao tiDp l b&nh?n trao i d]li@u vQi my tnh, kh.i ny l n;i cUm rUc

tn hi@u vo, kh.i c cc nhi@m vMsau:-

Nh?n d]li@u in tKmy tnh gRi sang.- Cung cEp d]li@u cho h&p gC;ng v kh.i


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Trong qu trnh in, Card Formatter l thnh phYn trung gian


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Hnh 28 H*th%ng cung c7pgi7y trn my in Canon 2900

- Main input tray: Khay giEy chnh.- Priority input tray: Khay giEy Cu tin.-

Pick-up roler: Con lGn lEy giEy.- Pickup solenoid: R;le lEy giEy.-

Paper width sensor (PS802): Cm biDn


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TRUNG TM )O T*O CNG NGH,CAO BCH KHOAh. i ( )

Sau khi chuyAn giao sang giEy th mFc v`n WdBng b&t (mFc s.ng), b&ph?nsEy c nhi@m vMsEy cho cc hBt mFc nng chy v bm chVt vo giEy trCQc khi

giao trinh sua chua máy in

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