### device | machine | electrostatic printer:

Laser printer
* Many laser printers are capable of producing camera-ready output
  - store an entire page before printing
  - use different types of drums
* Most laser printers can also print on thin cardboard directly
  - consume several hundred watts while idle in order to keep the fuser warm
  - print in monochrome, though there are a few models that can print in color
  - provide error messages when they malfunction
  - use a multi-pass system for laying down color ink
* Some laser printers can also produce color output.
* Some laser printers have a long cycle up time to print the first page
  - serious problem printing TeX output
  - require more RAM to operate efficiently
* are better equipped for high volume printing
  - complex devices that require caution when troubleshooting
* are computer hardware
  - costly, but offer greater speed and print quality than other printers
* are faster, higher quality, and more expensive
  - provide crisper printouts, and better suited for high volume printing
  - generally faster than inkjet, and their resolution is better
  - in use with all library computers
  - more expensive than inkjet printers, and are of a higher quality
  - much more costly to supply and maintain than dot matrix printers
  - page printers, printing a complete page at a time
  - quick, offer high-quality printing, and can be very quiet
  - quieter than solid ink printers and print documents faster
  - relatively fast and quiet and produce sharp, high-quality text and graphics
  - the most expensive, but produce the best quality, and are fast and quiet
  - usually faster and produce better quality, but are significantly more expensive
  - very fast and can achieve extremely high print quality
* can be very fast with very high quality print
  - print text, forms and graphics and barcode mail simultaneously
  - run out of memory when printing graphics
* combine speed with sharp output.
* consume a great deal of energy.
* deliver the lowest cost per printed page of any output device.
* deposit granules of finely ground carbon on the paper.
* eliminate film and plates.
* get their name from the way they form images on paper.
* have extremely good quality and speed
  - two factors, which affect the quality of output
* is an electrostatic printer
  - used for printing legal documents and normally used in office
* make it dangerously easy to put too much information in too little space.
* print black and white with very high quality
  - readable bar codes efficiently
* produce text and graphics that are very clean and crisp
  - very high quality text and graphics
* provide high-quality output that resembles typed or typeset text
  - the best quality lettering from a computer
  - users with high-quality printed output
* require more energy than inkjet or deskjet printers.
* run much faster because they use lasers to print.
* tend to be more durable
  - stretch paper as it travels through the printer
* transfer tiny particles of toner onto the paper.
* use a dry powder called toner
  - much larger cartridge that contains a powdery toner
  - primary corona wire to charge the drum
  - separate small computer, as well as a laser and toner, to produce an image
  - toner cartridge and drum, the same kind that photocopiers use
  - toner-based product similar to standard black and white laser printers
  - an optical imaging system
  - heat to fuse the ink to the printing medium
  - laser technology, very much like copier technology, to transfer toner onto paper
* use the same heat sensitive ink as photocopiers, and can be used in the same manner
  - technology as duplicating machines
  - toner cartridges that vary in cost and in the number of pages they'll print
* work on a different principle which is similar to a photocopying machine.
+ Computer printer, Types of printers: Printers