Apple LaserWriter LaserWriter

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LaserWriter (March 1985), included 13 fonts in ROM and 300-dpi resolution.
Design. The LaserWriter was the first major printer designed by Apple to use the new Snow White design language created by Frog Design.
He originally received pushback from his employer, Xerox. But his invention eventually became nearly ubiquitous in every office and home.
The Apple Dot Matrix Printer (often shortened to Apple DMP) is a printer manufactured by C. Itoh and sold under Apple label in 1982 for the Apple II series, Lisa, and the Apple III.
Answer. Answer: Apple Laser Writer is an example of a DTP Hardware.
The Apple LaserWriter was the first laser printer available to the mass market. The Apple LaserWriter with its built-in Adobe Postscript page description software was one of the key elements in the desktop publishing (DTP) revolution.
Xerox PARC Scanning Laser Output Terminal (SLOT)

Gary Starkweather prototyped the first laser printer by modifying a standard Xerox office copier. It printed 60 pages a minute at 500 dots per inch. It took almost five years to produce a commercial version: the huge, expensive 9700.

How a laser printer works. They work by using a heated wire to positively charge a drum, which is then passed over by a laser that reverses the charge in the areas that it hits. The now-negatively charged areas of the drum represents the image or text that is to be printed.
The First Printer

The first computer printer designed was a mechanically driven apparatus by Charles Babbage for his Difference Engine in the 19th century. The Difference Engine is an automatic mechanical calculator that was invented to produce error-free tables, which was a complicated process to do by hand.

Apple`s retail stores would need additional repair space and staffing. And printers introduce a large class of technical support problems that Apple currently avoids. And after all that, unless Apple made the print engine, it wouldn`t make the ink, and that`s where all the money is.
Created in China, the printing press revolutionized society there before being further developed in Europe in the 15th Century by Johannes Gutenberg and his invention of the Gutenberg press.
Apple (AAPL) iOS is the operating system for iPhone, iPad, and other Apple mobile devices.
Color Laser Printer or Black & White Laser Printer

As print quality goes down over time, this will be a reason to replace the color printer. We find a black and white printer can sometimes last 10 years or more and most color laser printers are replaced every 3 to 5 years.

Laser printers provide superb print quality with crisp text, fast speeds, and economical printing for both home and office working. One of the big advantages of laser printers is that they don`t require ink.
The laser printer was the first to be invented and was done so in 1969 by Gary Starkweather while working in the Xerox product development team. His idea was to use lasers to imprint an image onto a copier drum which would then be transferred onto paper. Hence, the name `Laser printer`.
Laser printers are more efficient, printing pages more quickly than comparable inkjet printers perform. The printing process is noticeably quieter with a laser printer vs. inkjet. Even when not in use for long periods of time, toner does not run the risk of drying up and becoming unusable.
18.4.

A semiconductor diode laser is currently used in laser printers as the light source.

Yes, laser printers can print in monochrome or full color. Just keep in mind that color laser printers are more expensive because they require new toner cartridges for each color, as opposed to just a black toner cartridge for monochrome laser printers.
An LED printer is a type of computer printer similar to a laser printer. Such a printer uses a light-emitting diode (LED) array as a light source in the printhead instead of the laser used in laser printers and, more generally, in the xerography process.
While ink is standard in most conventional inkjet home printers, laser printers depend on toner and lasers for their output. Given that they`re based on their own unique technology, you`ll find that they also have their own unique advantages and disadvantages.
Laser printers can handle both black and white and color printing, though color laser printers are more expensive than monochrome laser printers. Typically, laser printers are used for printing whereas newer all-in-one printers can function as a printer, copier, scanner and fax.
First, the laser printer reads the electronic data that makes up the information or image that you want to print and beams this onto a photo-sensitive drum. The information on the drum is then transferred to paper using static electricity to position tiny particles of powdered toner in the correct pattern.
Laser techniques include laser vaporization, laser resection-enucleation, and coagulation.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP Officejet Pro 8500 Wireless with fake paper jam
ANSWER : HP Officejet is by far one of the frustrating piece of equipment I have ever owned. I bought it as unused in the package, at that point no warranty left. less than 6 months and 500 pages the white cog gear wheel broke. Luckily with instructions in this site I manage to glue it back together. Then I bought new ink – problems started as they were not original HP 30$ per cartridge. Ordered originals (here in China), took over one week to get them. Then found out that printhead needed to be replaced => more than 100$ spent. Still constant problems: If my wife kids print, I need to be stand-by as you never know what happens. Really an Office level equipment. After cleaning one paper jam I broke the encoder tape, took me another 4 hours to get it fixed. Then broke the cog gear again and got it displaced. Another 4 hours. Only reason I am not throwing this s***t out of window is that there are still ink left. Luckily this drinks them like a horse, for sure I will no more buy new ink. I will get a new laser instead, and not from HP. About cog wheel fixing: make sure that the white wheel is positioned correctly so that the small torx in shaft goes into the slit in the white wheel. When fitting the black cover back, make sure that the white washers on both sides fit into to slits of the black cover. Good luck.

HP Officejet Pro 8500 Carriage Replacement steps
ANSWER : Hi Mark:

Magenta toner smeared all over printouts
ANSWER : Forgot to add, I have a spare Fuser kit I can install but I’m guessing that won’t fix problems with magenta toner spilled all through the guts of the machine. Is it worth installing?