Copy machines, copiers and photocopiers are terms used to describe machines that make copies of documents or images on paper. This process is fast and inexpensive. Most modern machines use either ink jet technology or xerography technology.
In 1779, James Watt invented the first widely-used copy machine for offices. This device, which transferred ink from the original copy onto a moistened sheet of paper using a press, became a commercial success and was used for more than a century. Years late, Chester Carlson invented the process of electrophotography, which led the photocopying process used in modern times.
The technique of photocopying is done widely in fields such as government, education and business. Digital documentation has become more popular in recent years. There are predictions that these devices will eventually become obsolete, especially when people rely less on distributing paper documents.
Most copier devices in office settings use the xerography technology. This was introduced by Xerox in 1959. Soon after its introduction, the technology replaced copies made using other techniques such as Photostat, mimeograph machines, Verifax, and carbon paper.
There are five key steps for photocopiers that use xerography. The first is charging. This involves the cylindrical drum being electrostatically charged. Drums have a photoconductive material and are charged with a wire that has high voltage, called a corona write or a charge roller.
The exposure process: A powerful lamp is used to illuminate the original copy. The white portions of the original document reflect the light onto the photoconductive drum surface. Areas exposed to the light are conductive and discharge to the ground, while areas not exposed to light stay negatively charged. This results in a latent electrical image on the drum surface.
The developing process: The toner is considered positively charged and so when it is applied to the drum, it attracts and sticks to areas that are negatively charged. The transfer process: The toner image on the surface of the drum is then transferred from that drum to a piece of paper that has a higher negative charge than the drum. Finally, there is the fusing process in which the toner melts and bonds to paper through the use of heat and pressure rollers.
Photocopiers or copy machines are devices that can quickly and cheaply produce paper copies of documents or images. These devices may use ink jet or xerography technology, the latter being more commonly used in office settings. Xerography works in five main steps. Devices with similar functions of photocopiers have been around for centuries.
In 1779, James Watt invented the first widely-used copy machine for offices. This device, which transferred ink from the original copy onto a moistened sheet of paper using a press, became a commercial success and was used for more than a century. Years late, Chester Carlson invented the process of electrophotography, which led the photocopying process used in modern times.
The technique of photocopying is done widely in fields such as government, education and business. Digital documentation has become more popular in recent years. There are predictions that these devices will eventually become obsolete, especially when people rely less on distributing paper documents.
Most copier devices in office settings use the xerography technology. This was introduced by Xerox in 1959. Soon after its introduction, the technology replaced copies made using other techniques such as Photostat, mimeograph machines, Verifax, and carbon paper.
There are five key steps for photocopiers that use xerography. The first is charging. This involves the cylindrical drum being electrostatically charged. Drums have a photoconductive material and are charged with a wire that has high voltage, called a corona write or a charge roller.
The exposure process: A powerful lamp is used to illuminate the original copy. The white portions of the original document reflect the light onto the photoconductive drum surface. Areas exposed to the light are conductive and discharge to the ground, while areas not exposed to light stay negatively charged. This results in a latent electrical image on the drum surface.
The developing process: The toner is considered positively charged and so when it is applied to the drum, it attracts and sticks to areas that are negatively charged. The transfer process: The toner image on the surface of the drum is then transferred from that drum to a piece of paper that has a higher negative charge than the drum. Finally, there is the fusing process in which the toner melts and bonds to paper through the use of heat and pressure rollers.
Photocopiers or copy machines are devices that can quickly and cheaply produce paper copies of documents or images. These devices may use ink jet or xerography technology, the latter being more commonly used in office settings. Xerography works in five main steps. Devices with similar functions of photocopiers have been around for centuries.
About the Author:
Learn about the advantages and benefits of choosing copy machines that will help your business thrive! When you are searching for knowledgeable and skilled technicians who can provide important information and details about Ricoh copiers Brooklyn, you can find them today!
No comments:
Post a Comment