http://www.ordertoneronline.com/laser-printer-toner/
Laser Printers are commonly used printers that are known for its rapid printing abilities. The other marked feature of a laser printer is the high quality text and graphics printing. It works basically on the principle of xerographic printing process. However, it is different from the analog photocopying machines in which the image produced is the result of direct scan of a laser beam on the photoreceptor of the printer.
Using a laser printer has a number of advantages over any other types of printers available. The speed of a laser printer varies from one model to another as it depends on a number of factors like the graphic intensity required in processing the job and others. The latest models of laser printers can print more than 200 single color pages in one minute, which is more than 12 thousand pages in an hour! The color laser printers are relatively slower, but even they can print at more than 100 pages per minute. The high speed laser printers are generally used for printing of mass mailings like utility or credit card bills etc.
The cost incurred in using the laser printing technology is dependent on more than one feature such as the cost of the toner, paper, once in a while replacement of the drum, and change required in other consumable parts of the printer like transfer assembly and the fuser assembly. Laser printers having drums made of soft plastic can be costlier in the long run than one can comprehend; its high overall cost becomes apparent only when the printer requires a drum replacement.
Another feature in the family of laser printers is the duplexing model. This allows printing on both sides of a paper without the need to remove the paper at all. This technology can cut paper cost directly into half and also lessen the filling volumes. Formerly, the duplexing technology was available only on the high-end laser printers. However, now they can be seen on a number of mid-range office laser printers. Although, the duplexing technology can reduce the printing speed to some extent as the paper path length increases.
The dot-matrix and inkjet printers take the incoming spooled data for the printer and directly print that on the paper making it a slow process which can stop as soon as the printer is waiting for more data. On the other hand, a laser printer cannot work this way, the reason being the large amount of data required to output to the printer in a continuous fashion. The printer cannot wait for data arrival and if that happens, there can be gaps and misalignment on the page.
To take care of the above problem, a printer buffer is used. The data is built up and kept in the large printer buffer that is generally present in the printer. This data bank is large enough to account for every single dot that can be printed on a page. However, this requirement of storing the dots in the memory before printing can begin has limited the printing capability of laser printers to small size like A4 or A3. Most laser printer cannot print long banners as there is no memory to hold that amount of data.
The printing takes place in seven steps. A Raster Image Processor scans the entire page line by line and stores a bitmap of the page in the raster memory. The drum is then charged negatively and the bitmap is written on the photosensitive drum using a laser beam whose functionality is dependent on the bitmap image. The charged toner particles are charged negatively and wherever the laser has not discharged the drum, the charges will repel and printing won`t take place, hence creating the required print out. The toner contains a plastic powder that is attracted to the parts where the laser beam hit and in the end the plastic powder is fused at 200 degree Celsius to bond the ink with the paper.
About the Author:
This article can be accessed in portuguese from the Article section of page www.polomercantil.com.br/impressora.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br
Article Source: ArticlesBase.com – Working of Laser Printers
|
|
C9720A Genuine HP Toner Black Laser Printer 4600 4600 $125.00 |
|
|
Generic CEBFX2R Laser Toner Cartridge for Canon Printer $0.99 |
|
|
2pk 4500 Laser Toner For Xerox Phaser 4500 Printer $88.20 |
|
|
Generic CEBFX7R Laser Toner Cartridge for Canon Printer $0.99 |
|
|
C9721A Genuine HP Toner Cyan Laser Printer 4600 4650 $159.00 |
|
|
C9722A Genuine HP Toner Yellow Laser Printer 4600 4650 $159.00 |
|
|
C9723A Genuine HP Toner Magenta Laser Printer 4600 4650 $159.00 |
|
|
Generic CEB10AR Laser Toner Cartridge for HP Printers $0.99 |
|
|
2p GR332 Laser Toner Cartridge for Dell 1720 Printer $67.90 |
|
|
TONER Precision Cartridge C4096 HP2100 Laser Printer $20.53 |
|
|
TN350 Black Toner Cartridge for Brother Laser Printer $10.99 |
|
|
Okidata Toner for Oki Laser 400/800 Printer 521042010 $45.00 |
|
|
J9833 Toner Cartridge For Dell Laser Printer 1100 1110 $28.95 |
|
|
6 Toner Cartridges for Brother Laser Printers $0.99 |
|
|
6pk 4500 Laser Toner Fits Xerox Phaser 4500 Printer $254.15 |
|
|
8pk 4500 Laser Toner Fits Xerox Phaser 4500 Printer $332.09 |
|
|
2 S35 Laser Toner Cartridge for Canon Fax L170 Printer $46.99 |
|
|
S35 Laser Toner Cartridge for Canon Fax L170 Printer $25.50 |
|
|
E40 Laser Toner Cartridge for Canon PC981 Printer $33.50 |
|
|
Laser Toner Cartridge Set for Dell 1320c Printer Ink $45.90 |
|
|
5pk Laser Toner Cartridge for Dell 1320/1320c Printer $54.90 |
|
|
5p Laser Toner Cartridge Set for Dell 1320c Printer Ink $54.90 |
|
|
8p Laser Toner Cartridge Set for Dell 1320c Printer Ink $79.90 |
|
|
8pk Laser Toner Cartridge SET for Dell 1320c Printer $79.90 |
|
|
5pk Laser Toner Cartridge SET for Dell 1320c Printer $54.90 |
|
|
8pk Laser Toner Cartridge for Dell 1320/1320c Printer $79.90 |
|
|
2pk E40 Laser Toner Cartridge for Canon PC735 Printer $59.90 |
|
|
NEW Laser Toner Cartridge SET for Dell 1320c Printer $45.90 |
|
|
DELL OK3756 1710 Desktop Laser Printer Includes Toner $98.99 |
|
|
2 Xerox Laser Printer Toner Cartridges 106R364 $44.99 |
|
|
hp 92295A laser toner cartridge, 95A, printer $8.00 |
|
|
HP 4000 Compatible Laser Printer Toner (C4127X) $14.99 |
|
|
PHASER 750 COLOR LASER PRINTER MAGENTA TONER CARTRIDGE $12.99 |
|
|
Laser Ink Toner Cartridge to Lexmark E450 E450d printer $69.99 |
|
|
Laser Ink Toner Cartridge for Lexmark E-450dn printer $69.99 |
|
|
Laser Ink Toner Cartridge for Lexmark E450dn printer $69.99 |
|
|
Laser Ink Toner Cartridge to Lexmark E-450/450d printer $69.99 |
|
|
New Laser Ink Toner Cartridge for Lexmark E450n printer $69.99 |
|
|
HP Laser Printer Toner H397860001 Maintenance Kit $304.43 |
|
|
HP Laser Printer Toner U618060001 Maintenance Kit $342.66 |
|
|
KYOCERA TK502C Laser printer toner Cartridge, Cyan $162.61 |
|
|
LEXMARK 15W0901 Toner Cartridge,Laser Printer Magenta $289.58 |
|
|
LEXMARK C9202CH Laser Toner printer Cartridge, Cyan $469.62 |
|
|
OKIDATA 42918981 Laser Cartridge Printer Toner, Yellow $459.36 |
|
|
OKIDATA 42918982 Laser Cartridge printer toner, Magenta $459.33 |
|
|
OKIDATA 43640301 Laser Cartridge,Printer,Toner, Black $68.04 |
|
|
RICOH 820039 Laser Printer Toner Cartridge, Yellow $179.55 |
|
|
XEROX 013R90133 Drum Unit Laser Toner Printer, Cyan $231.63 |
|
|
(OEM) Dell Laser Printer 5100CN Black Toner $45.00 |
|
|
4 Color & Black Toner Lexmark Optra C Laser Printer $99.99 |
|
|
(OEM) Dell Laser Printer 5100CN Yellow Toner $140.00 |
|
|
(OEM) Dell Laser Printer 5100CN Magenta Toner $140.00 |
|
|
JD762 CYAN Laser Toner Cartridge for Dell 5110 Printer $42.95 |
|
|
TONER CARTRIDGE FOR HP LASER JET PRINTER 3SI/4SI $0.99 |
|
|
CANON L-50/L50 TONER/LASER PRINTER CARTRIDGE 6812A001AA $167.95 |
|
|
COMPATIBLE TONER CARTIDGE HP 4/5M 92298X LASER PRINTERS $25.00 |
|
|
TEXAS INSTRUMENTS ML TONER KIT LASER PRINTER 6 & 9ppm $15.00 |
|
|
LEXMARK LASER PRINTER TONER CARTRIDGE #1380850 ( NEW ) $11.00 |
|
|
HP 82X Toner Cartridge Laser Printer GENUINE NEW $159.99 |
|
|
HP 82X Toner Cartridge Laser Printer GENUINE NEW $159.99 |
|
|
3 black ink toner cartridge HP laser-jet p1005 printer $99.99 |
|
|
3 print ink toner cartridge HP laser-jet p1005 printer $99.99 |
|
|
LASER PRINTER TONER CARTRIDGE BLACK CODE 1-500249 $29.99 |
|
|
HP 10A Black Toner Cartridge Laser Printer GENUINE NEW $80.33 |
|
|
NEW HP Laser Printer C4192A Compatible Toner Cartridge $11.47 |
|
|
062415 Toner for Tally Genicom Mono Laser 9035N Printer $89.95 |
|
|
J9833 Toner Cartridge For Dell Laser Printer 1100 1110 $28.95 |
|
|
SHARP JX-9500 JX 9500 LASER PRINTER TONER 52NT NUKOTE $16.00 |
|
|
C. ITOH LASER PRINTER TONER SET LB-TN506B $4.99 |
|
|
HP C3906 Replacement Laser Printer Toner Cartridge $0.99 |
|
|
Okidata Laser Printer Fax Toner Black New 52104501 OEM $12.95 |
|
|
Canon Copier Printer Laser Toner FX6 Empty Cartridge $7.95 |
|
|
TI 2569502-0001 LASER PRINTER 16ppm TONER KIT NEW $59.95 |
|
|
2 S35 Laser Toner Cartridge for Canon Fax L170 Printer $46.99 |
|
|
S35 Laser Toner Cartridge for Canon Fax L170 Printer $25.50 |
|
|
Accel A Writer 3N Laser Printer Toner $232.99 Accel A Writer 3N Laser Printer Toner |
|
|
Printronix Black Toner For L7032 Laser Printer $395.99 Toner Cartridge Printronix L7032 Laser Printer 251749-001 www.printronix.com Printronix, Inc Black Toner Cartridge Black Laser Printronix 470 Page |
|
|
V7 Color Toner For HP LaserJet Cp4005 Printer – Laser – Color $101.24 V7 Color Toner For HP LaserJet Cp4005 Printer – Laser – Color |
|
|
Brother Waste Toner Pack For HL-2700CN Colour Laser Printer $11.99 Waste Toner Unit Brother HL-2700CN Colour Laser Printer WT4CL www.brother-usa.com 12000 Page @ 5% Coverage Brother Industries, Ltd Waste Toner Pack For HL-2700CN Colour Laser Printer Laser Brother |
|
|
Ricoh Black Toner Cartridge For BP20 and BP20N Laser Printer $107.99 1 x Cartridge Toner Cartridge Ricoh BP20 Laser Printer Ricoh BP20N Laser Printer 402455 www.ricoh-usa.com Ricoh Company, Ltd Black Toner Cartridge Black Laser Ricoh 5000 Page |
|
|
Media Sciences Cyan Toner Cartridge For Samsung CLP-300 Laser Printer $19.99 Toner Cartridge Samsung CLP-300 Laser Printer MS300C www.mediasciences.com Media Sciences International Cyan Toner Cartridge Cyan Laser Media Sciences 1000 Page |
|
|
Media Sciences Yellow Toner Cartridge For Samsung CLP-300 Laser Printer $19.99 Toner Cartridge Samsung CLP-300 Laser Printer MS300Y www.mediasciences.com Media Sciences International Yellow Toner Cartridge Yellow Laser Media Sciences 1000 Page |
|
|
Media Sciences Black Toner Cartridge For Samsung CLP-300 Laser Printer $22.99 Toner Cartridge Samsung CLP-300 Laser Printer MS300K www.mediasciences.com Media Sciences International Black Toner Cartridge Black Laser Media Sciences 2000 Page |
|
|
Media Sciences Magenta Toner Cartridge For Samsung CLP-300 Laser Printer $19.99 Toner Cartridge Samsung CLP-300 Laser Printer MS300M www.mediasciences.com Media Sciences International Magenta Toner Cartridge Magenta Laser Media Sciences 1000 Page |
|
|
Tallygenicom Black Toner Cartridge For Mono Laser 9035N Printer $254.99 Toner Cartridge Tallygenicom Mono Laser 9035N Printer 062415 www.tallygenicom.com Tallygenicom, L.P Black Toner Cartridge Black Laser Tallygenicom 17000 Page |