Fichas
Printer
Fichas del conjunto (27)
- 1EP Print ProcessElectrophotographic print process
Cleaning
Charging
Writing (exposing)
Developing
Transferring
Fusing - 2When can the printer take place?In Ready State
indicated by a ready LED light
Computer sends the print job to the printer - 3EP printer process Step 1Cleaning- a rubber blade inside the EP cartridge scrapes any toner left on the drum into a used toner receptacle
- 4Charginga special wire or roller also called charging corona gets a high-voltage HVPS to apply strong uniform negative charge ( 600VDC) to the surface of the drum
- 5Writing Processlaser turned on and scans the drum from side to side and printer signal the pickup roller to feed a piece of paper into the printer
- 6Developingtoner is transferred to the areas that were exposed in the writing step also called bias voltage
- 7Transferringimage is transferred to the paper
- 8FusingFinal step, the toner image is made permanent on the paper and the printer pushing paper out
- 9InkJet Printersalso know as ink dispersion technology, produce images by forcing ink through tiny nozzle and onto paper pg 6-2
- 10Inkjet Printer printing MethodsUses Thermal bubble or piezoelectric bubble
- 11Thermal BubbleHeats the ink, which vaporizes it, creating a bubble. the bubble protrudes out through the nozzle and sprays onto the paper. When the bubble bursts, it creates a vacuum, which draws more ink from the cartridge into the print head,
- 12Piezoelectric Technology Uses in InkJet printerscreates a bubble with a piezo crystal behind each nozzle. An electrical current sent to the crystal causes it to vibrate. When it vibrates inward it release ink onto the paper pulling ink from the ink cartridge.
- 13CYMK Ink CartridgesCyan, Yellow, and Magenta
some cartridge don't include a separate black ink cartridge they mix all three to get black - 14Print HeadsPart of the ink cartridge for the inkjet printer. The print head moves across the page on a small carriage pulled by a belt, printing in columns of pixels. pg 6-3
- 15How do you increase the resolution on the print head ink jet cartridges?a second pass is made across the page to overwrite between the existing dots. on some printers it occurs on both pages across the page left to right and right to left on the other side it prints in one direction as the stepper motor advances the page print head moves back across the page.
- 16Calibrationprinting a test page and making adjustments to the printer based on what you see printed on the page.
- 17Ditheringshades of each of the basic colors are produced through dithering also known as halftones. By varying the pattern of dots, as well as the density of the dots, you can make a color appear to be more saturated or darker.
- 18Paper PathInkjet printers has paper tray behind the printer and the paper is pulled through a straight-through path using feed rollers
fewer paper jams
good for cardstocks - 19S-curve or a U- Curveprinters store paper in a paper tray and the front of the printer and pull the paper up through rollers and under the print head.
some duplex printing, some require a special assembly that you attach to the printer that moves the paper through the paper path a second time. - 20Laser PrinterProduce high quality pint outs in high - volume printing
Black and white devices
uses electrophotographic (EP) process - 21What is Electrophotographic (EP) process?Combining electrostatic charges, toner, and laser light, the printer produces high quality pages or image one page at a time.
- 22What are the components of Laser printers?Laser scanning assembly
Toner Cartridge
Power Supplies
paper control and transport assembly
Transfer Corona Assembly
fusing Assembly
Electronic Control package - 23What does a toner cartridge contains?a hopper filled with toner. Toner is a fine powder composed of plastic , iron, and carbon particles
- 24EP Drumdrum covered with a phot that holds a static charge until exposed to light. A blade for removing used toner from the drum
- 25Corona AssemblyA static charge to the drum after an image has been printed
- 26What is the power supply for the Laser EP printer?A high-voltage power supply (HPVS) converts standard 120 Volt AC current into high voltage electricity used by EP process. A DCPS is used to power components such as laser and fuser.
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Información
- Descripción
- Installing and Configuring Printers
- Creado por
- felicia.range99
- Visitas
- 9
- Valoración