Printer Resetter Service Manual

A computer network is a group of interconnected computers. Networks make it possible for several people to share data and peripherals simultaneously. If many people need to use a printer, they can all use the printer available on the network. Computer network is comprised of connectivity devices and components. To share data and resources between two or more computers is known as networking. There are different types of a computer network such as LAN, MAN, WAN and wireless network. The key devices involved that make the infrastructure of a computer network are Hub, Switch, Router, Modem, Access point, LAN card and network cables. Before the advent of networks, computer users needed their own printers, plotters, and other peripherals; the only way users could share a printer was to take turns sitting at the computer connected to the printer. A network can be any size. For Example, connecting two home computers so they can share data creates a simple network. Companies can have networks consisting of a few dozen computers or hundreds of computers. The Internet is the worlds largest network and connects millions of computers all over the world.
Network devices are connected in different ways called “topology”. Topology refers to the physical layout of the network i.e. the locations of the computers and how the cable is run between them. To select the right topology for how the network will be used is very important. Each topology has its own strength and weaknesses. Lets have a look upon popular network topologies:

Star / hierarchical- Computers in a star topology are connected by cables to a hub. In this topology management of the network is made much easier (such as adding and removing devices), because of the central point. However because it is centralized more cable is required.

Bus - In bus topologies, all computers are connected to a single cable or "trunk or backbone", by a transceiver either directly or by using a short drop cable. All ends of the cable must be terminated, that is plugged into a device such as a computer or terminator. Most bus topologies use coax cables.
Mesh - A Mesh topology Provides each device with a point-to-point connection to every other device in the network. These are most commonly used in WANs, which connect networks over telecommunication links. Mesh topologies use routers to determine the best path.
Ring - In a ring topology network computers are connected by a single loop of cable, the data signals travel around the loop in one direction, passing through each computer. Ring topology is an active topology because each computer repeats (boosts) the signal before passing it on to the next computer.
Wireless - A wireless network consists of wireless NICs and access points. NICs come in different models including PC Card, ISA, PCI, etc. Access points act as wireless hubs to link multiple wireless NICs into a single subnet. Access points also have at least one fixed Ethernet port to allow the wireless network to be bridged to a traditional wired Ethernet network, such as the organization’s network infrastructure. Wireless and wired devices can coexist on the same network.
Understanding basics of networking will help you to configure and share network printers.

Toner is a powder used in laser printers and photocopiers to form the printed text and images on the paper. Previously it was made of carbon powder. Then carbon was combined with polymer to develop the excellence of the printout. The heat of the fuser result melts toner cartridges elements to attach to the paper. The exact polymer used could be a Styrene Acryl ate Copolymer or a Polyester Resin, but it differs accordingly with the producer. Toner cartridges formulations vary from manufacturer to manufacturer and even from one machine to another machine. These formulae differ from each other in the grain size and melt point.

To get a best print, some toner companies use a chemical process to grow toner particles. This results in size in more and more consistent shapes of cartridges particles. This lesser uniform shapes allow more accurate color reproduction and well-organized toner use.
In earlier machines, toner was poured by the user from a bottle into a reservoir in the machine. Modern machines feed directly from a cartridge. Empty cartridges are sometimes refilled by third party vendors. Using toner cartridges against the laser cartridges is beneficiary. The laser printer toners are able to print thousands of pages, and are less expensive per page compared to inkjet cartridges. The printing speed is faster than inkjet cartridges while they almost work on every type of paper. In due course, they prove to be much economical if a lot of printing work is involved. A compatible cartridge benefits you with cost savings and at times massive savings up to 50%. It all depends upon your requirements to utilize these toner cartridges to enhance your printing. Basically there are 2 types of cartridges, originals and non-originals and there are 2 types of non-originals being compatibles and remanufactured (this goes for inks also as does the information below).

Otherwise known as non-genuine, after market this is how they work:-
- Compatibles are actually a brand new cartridge manufactured to work in the same way (without breaking the trademark, copy protection laws) as the same original cartridge with the same machines. The benefit you gain from these is obviously cost savings with at times massive savings up to around 50%. The downside is they are not as environmentally friendly as remanufactured toners and there are the occasional failures and complaints about lower quality (though failure rates for the top companies making these are within industry norms and not significantly higher than those of the original manufacturers themselves)

- Remanufactured toners however are a little different as they take an empty original (it should have only been used ONCE) and fill it with toner. As long as you buy from a reputable retailer it will have also been checked to determine if parts need to be replaced as well as toner refilled. You also get good cost savings as you do with compatibles but the environment wins out big time as you helping ‘close the loop’ by reusing an empty original.

Once again the same applies as above with quality and failures.

As a fine powder, toner can remain suspended in the air for some period, and is considered to have health effects comparable to inert dust. It can be an irritant to people with respiratory conditions such as asthma or bronchitis. Following studies on bacteria in the 1970s that raised concerns about health effects resulting from pyrol, a contaminant created during manufacture of the carbon black used in black toner, manufacturing processes were changed to eliminate pyrol from the finished product.
According to recent research, some laser printers emit submicrometer particles which have been associated in other environmental studies with respiratory diseases .