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The photoconductor properties are such that when the laser 'writes' the data on it, the magnetic properties are changed to conform to the printed data...in a mirror image . The drum, with the characters , then rotates thru' the toner and picks up toner only where the characters are. The 'characters' are then transferred to the electrically charged paper, which picks up the characters. The paper then must go into the fuser which bonds or melts the image onto the paper. Edah1144
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∙ 14y ago
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What is photoconductor unit inlaser printer?
Otherwise known as the drum kit. Quite often the laser printer will tell you (on the LCD display) that you need to replace the photoconductor, but the price list will have no such thing. It will however usually list a Drum Kit.
When servicing a laser printer a photoconductor needs to be well removed from what element?
Light source
How does a photostat machine works?
I have read it back in my High School that some metals have photoelectric effect, i.e. a charge is generated on them when light falls on them. Selenium, Cadmium are some of the common elements that demonstrate photoelectric effect. Nowadays amorphous silicon being used as a photoconductor in the photocopying machines. When a reflection from the original falls on the photoconductor unit then there is a charge difference in the areas where the document is blank and where it is printed. This makes the photoconductor surface charged unevenly. At this time, the toner which is again a charged colloidal powder (charged opposite to the charge generated on the photoconductor) is applied on the surface and it sticks to the areas where the photoconductor is charged. Thus the image is formed on the photoconductor unit. In order to transfer this image to paper, a transfer charge is applied on the paper which again is of opposite nature than the charge of toner. Thus the charge generated on paper attracts the toner particles and thus the image is transferred to the paper. This paper then goes into the fuser section where the toner is melt by applying heat and pressure and thus fixed. The final product is a photocopy.
What is photo conducter?
concept of photo conductivity
How does a photoconductor?
The photoconductor properties are such that when the laser 'writes' the data on it, the magnetic properties are changed to conform to the printed data...in a mirror image . The drum, with the characters , then rotates thru' the toner and picks up toner only where the characters are. The 'characters' are then transferred to the electrically charged paper, which picks up the characters. The paper then must go into the fuser which bonds or melts the image onto the paper. Edah1144
What is photo conductors?
A photoconductor is something whose resistance decreases when it's exposure to light increases. As for Photography, the only link I know of is that they are used in light meters.
What is the use of selenium photocells?
Because of its photovoltaic and photoconductive properties, selenium is used in photocopying, photocells, light meters and solar cells. Its use as a photoconductor in plain-paper copiers once was a leading application but in the 1980s, the photoconductor application declined (although it was still a large end-use) as more and more copiers switched to the use of organic photoconductors. It was once widely used in selenium rectifiers.
What is a photo conductor?
A photoconductor is something whose resistance decreases when it's exposure to light increases. As for photography, the only link I know of is that they are used in light meters.
What is the meaning of reset pcu correctly Ricoh Copier?
It means your photoconductor unit is out of whack.If you open the printer, remove your PCU, and reseat it correctly, the error message likely will disappear.
How does Photostat machine work?
There are two things that you need for a printer to work. 1: a computer connected to it, and 2: a power outlet for it to draw power to work. The computer sends a message to the printer via the internet or your local connection, telling the printer to work, and the pen just inside it starts writing using the software it knows.
What is the principle behind the working of vidicon camera?
A vidicon tube is a video camera tube design in which the target material is a photoconductor. The Vidicon was developed in the 1950s at RCA by P. K. Weimer, S. V. Forgue and R. R. Goodrich as a simple alternative to the structurally and electrically complex Image Orthicon.While the initial photoconductor used was selenium, other targets-including silicon diode arrays-have been used. Schematic of vidicon tube. The vidicon is a storage-type camera tube in which a charge-density pattern is formed by the imaged scene radiation on a photoconductive surface which is then scanned by a beam of low-velocity electrons. The fluctuating voltage coupled out to a video amplifier can be used to reproduce the scene being imaged. The electrical charge produced by an image will remain in the face plate until it is scanned or until the charge dissipates. Pyroelectric photocathodes can be used to produce a vidicon sensitive over a broad portion of the infrared spectrum. Prior to the design and construction of the Galileo probe to Jupiter in the late 1970s to early 1980s, NASA used Vidicon cameras on most of their unmanned deep space probes equipped with the remote sensing ability
How did African slaves get education?
They got their education by secretly learning it if their master didn't allowed because it was illegal. Sometimes, their masters tought the slave even though it was against the law. By secretly learning it, they could learn it off another slave or steal a book and educate themselves.
