Apple LaserWriter LaserWriter

How to Identify and Fix Common Problems ?

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LaserWriter (March 1985), included 13 fonts in ROM and 300-dpi resolution.
The LaserWriter is a laser printer with built-in PostScript interpreter sold by Apple, Inc. from 1985 to 1988. It was one of the first laser printers available to the mass market.
The IBM 3800 is a discontinued continuous forms laser printer designed and manufactured by IBM. It is significant as a product because it was both the first laser printer manufactured by IBM, and the first commercially available laser printer.
Answer. Answer: Apple Laser Writer is an example of a DTP Hardware.
A laser printer is a popular type of computer printer that uses a non-impact photocopier technology where there are no keys striking the paper. When a document is sent to the printer, a laser beam “draws” the document on a selenium-coated drum using electrical charges.
Printing, believe it or not, dates back in some form to as early as 3500 BC, when the Persian and Mesopotamian civilisations used cylinder seals to certify documents written in clay. Woodblock printing would follow, then moveable type until we get to the printing press in 1440.

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

In 1986, Charles “Chuck” Hull was granted a patent for this system, and his company, 3D Systems Corporation was formed and it released the first commercial 3D printer, the SLA-1, later in 1987 or 1988.
macOS (originally named “Mac OS X” until 2012 and then “OS X” until 2016) is the current Mac operating system that officially succeeded the classic Mac OS in 2001.
Apple iOS is a proprietary mobile operating system that runs on mobile devices such as the iPhone and iPad. Apple iOS stands for iPhone operating system and is designed for use with Apple`s multitouch 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 process data such as documents and materials created on a PC and output them on paper. Multifunction laser printers (MFPs) are laser printers equipped with additional functions such as copying, scanning, and faxing.
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.
Lasers produce a narrow beam of light in which all of the light waves have very similar wavelengths. The laser`s light waves travel together with their peaks all lined up, or in phase. This is why laser beams are very narrow, very bright, and can be focused into a very tiny spot.
Laser printers are faster than inkjet printers too. Print speeds are denoted in pages-per-minute (PPM). Laser printers have print speeds of 14 PPM and higher. The basic laser printer can print about 30 to 40 pages per minute, whereas high-end models churn out more.
The average lifespan of a printer is around 3-5 years. With proper upkeep and maintenance, some printers can last longer, but eventually your machine will need an upgrade.
The age of early printing: 1450–1550. Before the invention of printing, the number of manuscript books in Europe could be counted in thousands. By 1500, after only 50 years of printing, there were more than 9,000,000 books.
Lasers are classified into 6 types based on the types of medium used in them, and they are: Solid-state lasers. Gas lasers. Liquid lasers.
Selective laser sintering is an additive manufacturing (AM) technology that uses a high-power laser to sinter small particles of polymer powder into a solid structure based on a 3D model. SLS 3D printing has been a popular choice for engineers and manufacturers for decades.
Laser printers use toner powder instead of dye or pigment-based ink. Laser printers produce electrostatically charged dots on a light-sensitive drum which attracts toner powder. The toner is transferred to the paper and fixed by a heating process. Laser printers deliver crisp black and white and brilliant color prints.
4-dimensional printing (4D printing; also known as 4D bioprinting, active origami, or shape-morphing systems) uses the same techniques of 3D printing through computer-programmed deposition of material in successive layers to create a three-dimensional object.
3D printers can come in a variety of shapes and sizes ranging from equipment that can fit on a desk to large construction models used in the making of 3D-printed houses. There are three main types of 3D printers and each uses a slightly different method.
mac all-in-one laser printer.

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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?