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.
On a Dell printer, the photoconductor unit is typically located inside the printer, often integrated with the toner cartridge or as a separate component depending on the model. To access it, you usually need to open the front cover and remove the toner cartridge. The photoconductor can usually be identified by its shiny surface and may require periodic replacement to maintain print quality. Always refer to the specific printer's manual for detailed instructions on locating and replacing the photoconductor.
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.
Light source
the printer
DC Controller
DC controller
If a printer is to be dismantled and discarded, the printer driver should be destroyed with a hammer. The driver has a storage unit that stores all the information that the printer has ever printed, providing that there is enough room for storage.
LSU: Laser Scanning Unit.
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.
output unit takes the information from the processing unit and gives us the result. examples are: monitor,speaker,printer etc..
DPl
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