Archive for October, 2009
Multifunction printers? Why do I need it?
Posted by admin in Multifunction Printer on October 15th, 2009
Printers are very commonly used nowadays. They are very useful in the daily uses of people whether at home or offices. The printer is a peripheral device used for producing hard copies of data and documents stored in digital form. There are mainly attached by a printer cable or, in latest printers, a USB cable to a computer which serves as a document source. There are many kinds of printers available which are used for printing different things. These days the printers manufactured and are mostly prefer by people is Multi Function Printer. These printers consist of many features which is quite a benefit in the daily life. Computers are found everywhere, and no computer seems to be complete without the printer. Multi Function printers are mostly used in the offices rather than at home. Some people have opened a home based office also prefer the multi function printer. Multi function printer has eased the tension of the people who had to buy scanners, copier and many other things to complete their office. The space these items were taking was more then it usually takes. Multi function printer is a bit expensive but it is a very valuable thing because it has many functions in it.
Saves Power
The Multi Function printer can save much of electricity as just a single device will be plugged to power, as all the functions which is required is presently available in it. It will also help to the points of the USB and the power cords of other devices. This power saving function can be very useful as the function which is required to work can be used while the other functions are off. If a person is using a printer, the scanner and copier can be shut off. You don’t have to power on the whole functions in it to use a single function.
Saves Space
Multi Function Printer saves space whether it is kept in the office or at home. The other functions in it can help you by reducing the number of devices in the room. This gives the site a better look and spacious so that something else can be replaced by it. No need to make a separate space for the Multi Function Printer as it can do the work of other devices.
Easy to Setup & Install
One Multi Function Printer is more efficient than keeping other devices which are used as the same. The setup and the installation can be easily done. The maintenance of the Multi Function printer is very cheap because all the devices are included in it. The expenses on a single Multi function Printer will be less as compared to the devices which are being separately used.
Saves Money
Purchasing more than one devices can be very expensive. It’s better to purchase a single Multi Function Printer which can do all the work which normal printer, scanner and copier do. It is a better choice for people who don’t have much expense to buy several devices. It will also be cheaper than to purchase devices separately. The more the devices the more will be the expenses in maintaining the devices, because in that every devices has to be maintained separately.
How Laser Printers Work
Posted by admin in Laser Printer on October 14th, 2009
A laser printer is one of the most common printers used today, especially within businesses small and large due to its capability to rapidly produce high quality text and graphics. But while you know what a laser printer is, do you know how it actually works? There are a few basic scientific principles behind the laser printing process and they explain the great advantages to using a laser printer.
A laser printer obviously uses a laser to print, but how does it get the image on a sheet of paper? Laser printers use the process of electro photography whose primary principle at work is static electricity. Since oppositely charged atoms are attracted to each other, objects with opposite static electricity will cling together. Laser printers use a revolving drum, or photoreceptor, made out of highly photoconductive material that is discharged by light photons. The photoconductor, a photosensitive surface, is uniformly charged by a wire with an electrical current running through it, called the charge corona wire, with static electricity. The printer then beams a laser across the surface of the drum and projects an image of the page to discharge certain points. The laser is essentially “drawing” the letters and images to be printed as a pattern of electrical charges.
Afterwards, the toner, a fine powder, is spread over the surface of the drum and only adheres to the charged areas, which is how the latent design or image becomes visible. Next, the sheet of paper rolls along a belt and is given a negative charge by the corona wire. The paper is charged opposite to the toner since the toner has a positive charge. With the toner powder affixed, the drum rolls over a sheet of paper. The negative charge of the paper is strong enough to pull the toner pattern away. Also, since the paper and the drum move at the same speed, the image pattern is picked up exactly as it was “written.” In order to keep the paper from clinging to the drum, it is discharged by the detac corona wire right after picking up the toner.
To permanently fix the transferred image to the paper, the toner is fused with pressure and heat. To do this the paper is quickly passed through the fuser, which is a pair of heated rollers. The printer then cleans all of the excess toner and electrostatic charges from the photoconductor to make it ready for the next print job. The printer cleans itself through the heat actually melting loose toner powder away and by passing the paper through the discharge lamp which exposes the entire photoreceptor thereby erasing the electrical image. After these steps, the paper then rolls out onto the output tray ready for pick up.
Due to the unique method of exposition and formation, laser printers and color laser printers have many significant advantages over other types of printers. Laser printers offer the best print quality and highest resolution and have the ability to print up to 200 monochrome pages per minute. Laser printer speed depends upon the printer model and the graphic intensity of the job being printed. However, the bottom line is that laser printers are much faster than inkjet printers due to their unique process. This makes them ideal for users with heavy printing needs, whether they are monochrome text documents or multiple-page documents loaded with text, charts and images.
The first commercial implementation of a laser printer was by IBM with the model 3800 in 1976, but the first mass market laser printer was through the combined efforts of HP and Canon. While HP printers and Canon printers were first to the laser printer consumer market, Brother printers, IBM printers and others quickly followed and overtime dropped significantly in price.
Bluetooth Technology – Discover The Best Photo Printers, Mobile Printers And Gadgets
Posted by admin in Photo Printer on October 14th, 2009
Bluetooth technology is becoming increasingly popular in the world of electronics, both for the home and office environments, and even on the road. Bluetooth technology can be found not only in hands-free headset devices for your cell phone, but also in printers, computers, laptops, entertainment systems and more. With the increase in electronic and technology products we use in our daily lives, it is no wonder we would all like freedom from wires.
Bluetooth is one technology that does just that. Bluetooth technology works by transmitting low-powered radio signals in the 2.4 GHz range. Bluetooth wireless technology can penetrate solid objects, and unlike other technologies, it is omni-directional. This means that the technology does not require line-of sight positioning of connected devices and can communicate with other devices and extend beyond doors, walls and even different levels of a building. As long as the devices are in range, they can interact. This enables us to setup a personal-area network (PAN), which translates into the ability to own devices that can detect and interact with one another as they come within range of one another.
How close do they need to be you ask? That depends on the class of the Bluetooth device. There are two classes of Bluetooth. The first class, the weaker of the two, can transmit signals over a 33 foot range. The second class, the stronger of the two, can send and receive signals as far as 328 feet away.
In most cases you truly only need to be 10 to 20 feet or so away from these devices, as is the case with bluetooth printers. For the typical home user, you will likely be in the room with the printer or in a room close by to where the printer resides. The advantage of these devices is that you can print from far away sans wires. This technology is at the heart of innovations such as wireless printers and mobile printers. If you are on the go, who wants to lug with them a nest of wires to connect their printer to their laptop – Heaven forbid you forget to bring the wires and then are left up a creek without a paddle. Bluetooth allows the laptop and printer to effortlessly communicate with one another, assuming Bluetooth is built into both devices, or if your laptop has a Bluetooth card adapter. Luckily this feature comes standard on today’s generation of devices.
A great example of a Bluetooth printer is the HP Photosmart C5580 All in One Inkjet Printer. This printer, like most hp wireless printers, can print directly from Bluetooth devices and can print up to 34 pages per minute. The device also copies, scans and includes features such as its automatic paper-type sensing. HP printers are a popular choice for consumers in the all in one and photo printer categories.
The best photo printers come with Bluetooth technology so you can wirelessly, and rapidly, communicate and send photos from your digital camera to your wireless printer. Bluetooth can transmit data at a rate of up to 3 Mbps, which is very fast. Bluetooth enables you to quickly and efficiently send digital photos to your printer, where you can then instantly make photo prints. In addition to HP printers, canon printers are also best-in-class for photo printers including Canon’s line of canon pixma printers. The Canon PIXMA MP610 Photo Printer comes equipped with Bluetooth technology, a 2.5″ TFT previewing display and spectacular 4800 x 9600 color dpi results.
If there’s one drawback to Bluetooth it is the level of security. Because Bluetooth devices can connect to networks so easily, then it might be possible for someone to eavesdrop on you using another Bluetooth device. Bluetooth security is in the hands of electronics manufacturers who can produce devices that are secure or unsecure. So shop wisely and use the best, most trustworthy of brands.