Laser Technology

Laser technology is used in almost every scope of life, from the miniscule lasers in CD players to the lasers used to scan groceries in the checkout line to the massive lasers in aeronautics design. The discovery of laser technology and the subsequent building of ever-improving lasers have benefited the human race tremendously, particularly through medical advances. Medical lasers cause medical procedures to be quicker, better, and easier than their traditional counterparts. The only drawback is increased cost. In 1917, Albert Einstein was the first person to suggest the basics of what would become lasers, by discussing the theory of Stimulated Emission, which is a type of electron transition in which a photon is emitted from an atom causing a chain reaction with other atoms to repeat the action. In fact, the word laser is an acronym for Light Amplification by the Stimulation Emission of Radiation. Charles Townes, an American physicist, further developed the idea with microwave (invisible) light in the mid- to late-50’s and Theodore Maiman built the first working optical (visible) light laser in 1960. Improvements and variations on hundreds of kinds of lasers continue to be made since the 1960s. Those involved in quantum mechanics have been studying some form of lasers, either in theory or in reality, since the 1920s. Uses for laser technology are widespread and are included in such important fields as medical/surgery, communications, design, manufacturing/industry, and research. Medical/Surgery The advancement of medical lasers has vastly improved the ease and success of surgery. The cost, however, is greater than that of other treatments, though scarring is much less with lasers and lasers work much more quickly than older surgical options. Incisions are more precise and easier to control. Some medical areas in which lasers have deeply refined treatment options are in laser eye surgery, oncology, neurosurgery, cardiology, dermatology, veterinary surgery, and dental surgery. Communications Televisions, telephones/ cellular phones, and computer systems all benefit from the use of lasers. Lasers are able to carry the huge amounts of channels and frequencies required by these high-tech devices. Lasers have proven the best communication device to have in the space age. Design Lasers have transformed the world of design by making it possible for designers to perform with precision that was previously unavailable. Lasers are used to design digital and three-dimensional objects with much more ease and accuracy through scanning, cutting, copying, and digital archiving. From designing a building to designing landscape, lasers prove to be the best option for fast and easy design. Manufacturing/Industry Lasers have improved the manufacturer’s ability to produce tenfold. For example, with a laser cutter, a clothing manufacturer can have fabric patterns cut much more quickly and more accurately in no time. A jeweler has much more precision on his side when employing lasers to work on fine gems. Airplane designers can construct an aircraft much more efficiently and with greater results using laser technology. Research The use of lasers in research enables scientists to uncover much more detail and detect very slight movement when studying matter. The lasers can be tailored to only respond to certain colors or movements and, in that way, they provide much more specialized work in research environments. The world of laser technology is always expanding by producing new applications and ways to benefit people. The dependence that the modern culture has on lasers is amazing considering that it was not prevalent until the past forty years.

Inkjet Printers: A Brief Overview

Inkjet printers are an affordable and satisfactory option for printing documents and other images from computers. They were originally placed on the market in the late 1980’s and have improved greatly in production and cost since then. Today, high quality inkjet printers are available for as low as $70.00. The reason for the low cost is the higher cost of keeping the printer supplied with ink. This is where the real profits are for printer manufacturers. An inkjet printer uses millions of tiny dots of ink to make a word or picture. For photo printing, different variations of colored dots are integrated to create images with true-to-life color. A higher resolution of dots directly relates to increased quality of printouts. There are two major technologies at work in the choice of inkjet printers, impact and non-impact. Impact printers offer dot matrix or character printing. A dot matrix printer has a bunch of tiny pinheads that touch an ink-covered ribbon. When the pinheads impact the ribbon, the ink moves to the paper. Character printing is similar to an electric typewriter, but with more control and sharpness afforded to the printing job. Character printers are rarely used anymore because they can only print words and not other images. Non-impact printers are much more popular than impact printers, because of the advanced technology behind them. Both the widely used inkjet and laser printers belong in this classification. Non-impact printers do not actually contact the paper directly when printing. The way inkjet printers do this is by emitting jet sprays of ink to form images on the paper. This is where the name “inkjet” gets its meaning. Laser printers, the second most purchased printer after inkjet, use toner and other ingredients combined with heat to apply the ink to the paper. What is going on inside the inkjet printer? The center of the machine is the print head, which holds a multitude of ink spray nozzles to create the intricate dots on the paper. Ink cartridges contain the ink for the printer and are replaced according to frequency of use. Black ink and color ink typically comes in different cartridges with color sometimes appearing in three separate cartridges – cyan (blue), magenta (red), and yellow. Another part of the printer is the paper feeder, a tray that holds the paper to be printed and feeds it into the printer one page at a time. The choice of paper is instrumental in the resultant quality of the print. Regular copier paper will not provide as sharp a print as paper with a higher brightness level. Brightness in printer paper means being extra white, which showcases the black and colors of the ink better than a duller white. Brightness also indicates a higher level of smoothness to the paper. Another factor is the level of absorption, which is helped by pre-coated paper covered with a light film to prevent feathering caused by too much absorption. Many different qualities and finishes are available in paper intended for inkjet printer use. Inkjet printers are widely used by everyone from the common man to huge corporations. For everyday use, there are countless amounts of specialized sticker labels, invitations, fine stationery, and trifold brochures to be used specifically with inkjet printers. Whatever the printing need, the inkjet printer is likely to handle the job with excellent results.

Inkjet Printers: A Brief Overview

Inkjet printers are an affordable and satisfactory option for printing documents and other images from computers. They were originally placed on the market in the late 1980’s and have improved greatly in production and cost since then. Today, high quality inkjet printers are available for as low as $70.00. The reason for the low cost is the higher cost of keeping the printer supplied with ink. This is where the real profits are for printer manufacturers. An inkjet printer uses millions of tiny dots of ink to make a word or picture. For photo printing, different variations of colored dots are integrated to create images with true-to-life color. A higher resolution of dots directly relates to increased quality of printouts. There are two major technologies at work in the choice of inkjet printers, impact and non-impact. Impact printers offer dot matrix or character printing. A dot matrix printer has a bunch of tiny pinheads that touch an ink-covered ribbon. When the pinheads impact the ribbon, the ink moves to the paper. Character printing is similar to an electric typewriter, but with more control and sharpness afforded to the printing job. Character printers are rarely used anymore because they can only print words and not other images. Non-impact printers are much more popular than impact printers, because of the advanced technology behind them. Both the widely used inkjet and laser printers belong in this classification. Non-impact printers do not actually contact the paper directly when printing. The way inkjet printers do this is by emitting jet sprays of ink to form images on the paper. This is where the name “inkjet” gets its meaning. Laser printers, the second most purchased printer after inkjet, use toner and other ingredients combined with heat to apply the ink to the paper. What is going on inside the inkjet printer? The center of the machine is the print head, which holds a multitude of ink spray nozzles to create the intricate dots on the paper. Ink cartridges contain the ink for the printer and are replaced according to frequency of use. Black ink and color ink typically comes in different cartridges with color sometimes appearing in three separate cartridges – cyan (blue), magenta (red), and yellow. Another part of the printer is the paper feeder, a tray that holds the paper to be printed and feeds it into the printer one page at a time. The choice of paper is instrumental in the resultant quality of the print. Regular copier paper will not provide as sharp a print as paper with a higher brightness level. Brightness in printer paper means being extra white, which showcases the black and colors of the ink better than a duller white. Brightness also indicates a higher level of smoothness to the paper. Another factor is the level of absorption, which is helped by pre-coated paper covered with a light film to prevent feathering caused by too much absorption. Many different qualities and finishes are available in paper intended for inkjet printer use. Inkjet printers are widely used by everyone from the common man to huge corporations. For everyday use, there are countless amounts of specialized sticker labels, invitations, fine stationery, and trifold brochures to be used specifically with inkjet printers. Whatever the printing need, the inkjet printer is likely to handle the job with excellent results.

How To Save Money With Compatible Printer Inks

Like many other long term owners of printers, over the years I've spent a fortune on printer ink. I even recall on one occasion I actually paid more for a replacement ink cartridge than I did for a bottle of good champagne. I always thought that as long as my printer kept printing then it was just another fact of life and there was little I could do about it so why complain? Back then, on average, I paid anything from £20 to £25 for my branded ink cartridges because I simply didn't know any better. Although I'd heard of compatible ink cartridges, I didn't really know enough about them to give them a try. I was a bit suspicious of them because the cartridges weren't branded with a familiar name and I never gave it a second thought that they would be as good as branded cartridges. I even wondered if they might damage my printer. Then one day, my partner came home with some compatible ink cartridges for my printer and although I wasn't keen to use them I did. My existing ink cartridge was almost empty and I needed to get something printed so I cagily replaced the branded cartridge with the compatible, crossed my fingers and hit 'print'. I had visions of having to run out to buy a new branded ink cartridge or, in the worst case, a new printer and a new branded ink cartridge. The paper finally came out after what seemed to be an eternity and I was surprised to see that not only had my document printed as well as it ever had before, but my printer was still happily sitting on my desk, waiting for the next job. I couldn't believe it. The compatible ink turned out results that were just as good as with the branded ink I had previously spent a fortune on. At the same time, I was so happy to learn that the compatible cartridge had cost a tenth of the price I'd been paying and yet disappointed when I thought about all of the money I could have saved (and all of the champagne I could have had). After sitting down and working on the figures, I'd come to the conclusion that I'd actually spent almost £500 on replacement, branded ink cartridges over the last 12 months alone. If I would have been using compatibles I would have saved an incredible 90% of my printing costs! The next day, I went into work and told my colleagues all about what had happened and to my surprise two of them had also been spending more than they'd wanted on branded printer ink simply because they didn't have enough knowledge about compatibles. This inspired me to carry out research on compatible ink cartridges in order to find out the facts behind them; their advantages and disadvantages. I was astounded by what I discovered! Here are just a few of the things I found out: * You can save between 60% and 80% on average from the price of a branded ink cartridge depending on the make and model of your printer. * Despite the myths, compatible ink does not affect the warranty on your printer. By using compatible ink you're cutting out a major profit source for the big brands so they may try to convince you that you can only use their own inks, but it's actually illegal for them to void your warranty for using a compatible ink instead. * Compatible ink provides the same number of printed pages as a branded cartridge. * When buying your compatible ink, it's always a good idea to ask the vendor if the cartridges are made to ISO 9000 standards. Ink made to these standards have the same amount of ink as original cartridges. * Most compatible ink cartridges have a 24-month shelf life so you don't have to worry about them spoiling in a short space of time. Nowadays, I'm printing as much as I ever did, if not more. The great thing is that I'm spending less on printer ink, more on the enjoyable things in life and telling everyone I meet about the wonders of compatible printer inks!

Buy Laser Printer for effective printing

Computer printers are an important peripheral for any business houses today. The use of printer is endless you can use a printer for printing reports, documents, publishing newsletters or for just printing photos. One of the most preferred printers in many big business houses today is a laser printer.

A laser printer utilizes a laser beam to produce an image on a drum. The light that the laser releases alters the electrical charge on the drum. The drum is then rolled through a toner picked up by the charged portions of the drum. Finally the toner is transferred to the paper through a combination of heat and transfer.

Laser printers are considered to be the most ideal printing tools for printing today. Initially due to their high cost they were only favorable to big business houses however off late with a fall in prices they have been accepted in both homes and office environments.

Laser printer is known for its high quality text printing and excellent graphics printing. Though laser printer has a much higher initial cost as compared to inkjet printers or dot-matrix printers but they have a comparatively much lower running cost.

Laser printers are controlled through page description languages (PDLs). Page description languages have two de facto standards
• Printer Control Language (PCL)
• PostScript

Most software can print using either of these page description languages. PostScript is more expensive than PCL but it has additional features that PCL lacks.

Tips that can help you select the right printer
• Decide what type of documents you will be printing
• Decide what featured you will need like ability to handle large files, ability to print on various media, two or more paper trays etc
• Compare the print quality of different printers
• Compare the resolutions of different printers
• Compare the speed specifications of different printers
• Check whether the printer’s paper path is sharper than 90 degrees to handle envelopes, card stock and transparencies.
• Compare printer warranties and service contacts.

If you sit and work upon the above useful tips you will realize that laser printer just fits the bill.

Printer Toner Safety: The Dust Musts

When changing printer toner, one's first priority is often getting the printer running as quickly as possible to finish the project at hand. But it's best to slow down and take the time to follow necessary safety precautions. While printer toner itself isn't a health hazard, its fine powder in high concentration can be. This powder can stay in the air for quite a while, and is similar to dust when it comes to its effects on our body, resulting in irritations like sneezing and coughing. Add any respiratory conditions like bronchitis or asthma and these effects worsen. How can this dust become airborne? You'd be surprised at how easy it is. Improper disposal of printer toner in waste baskets can quickly spread dust through the air. Machine spills can cycle through the ventilator fan. Over-filled waste toner compartments can overflow within the machine. Some laser printer toners are considered carcinogens, or cancer causing, increasing the risk of those individuals facing extremely heavy and long-term exposure. Nevertheless, typical office and personal use is deemed safe. So take precautions. Vacuum, don't sweep or brush, spilled toner dust. Clean up desktops or surfaces with a damp cloth. Should toner get on your hands, wash them thoroughly and immediately with soap and cold water, which keeps your pores closed and protects your hands from becoming stained. Avoid any contact with your eyes or mouth, and never ingest. To play it extra safe, put the toner in a zipped plastic bag to avoid possible dust emissions. If you experience shortness of breath or persistent coughing, stop working with the printer toner, if applicable, and get fresh air immediately. Then seek medical attention if your symptoms persist. Since 1999, http://www.TonerDealers.com has been one of the largest toner resources online, saving customers up to 60% on nearly 4,000 unique toner and cartridge models everyday.

An Introduction To Barcodes

Barcodes encode numeric or textual information in a printable, machine-readable form. The use of barcodes can significantly reduce cost of warehouse management and inventory. Two main forms of barcodes exist today: Linear or normal barcodes encode data over a horizontal stretch of space or one dimension. This kind of barcode typically encodes between four and forty digits or characters. So called area codes encode data in two dimensions, resulting in much higher density which allows for up to three thousand characters to be encoded.

Most linear barcode types will only encode numbers or digits. Two notable exceptions are Code 39 and Code 128 which can also encode alphanumeric characters like letters. Two dimensional area codes usually encode numbers, letters and special characters.

The most common linear barcode type is Code EAN which is used to encode article numbers in retail. It's used throughout the world with the notable exception of the USA which uses a related code, Code UPC, for the same purpose. A special form of Code EAN carries a so called Addon, a smaller barcode next to the main barcode that can encode pricing information and the like. Code EAN with a five digit Addon is used to encode ISBN (International Standard Book Number), while Code EAN with a two digit Addon is used to encode ISSN (International Standard Serials Number).

Other notable linear barcode symbologies and their applications include Code 39 (used for pharmaceuticals), Code 128 (warehouse management and retail) and Code Two-Of-Five (warehouse management and inventory).

The most common two dimensional area codes are PDF417 and Datamatrix, both of which are used in manufacturing, package tracking and similar applications which require large data amounts to be encoded.

Barcode Checksums

To ensure safe and error free reading and scanning of barcodes, all common barcode symbologies support so called checksum or check digit schemes. A checksum or check digit is an additional character or number that is calculated from the encoded data and appended to the barcode. While reading the barcode the scanner or reader can verify the checksum and determine if the barcode was scanned correctly. This is especially important if the barcode can easily be damaged or be tampered with. Simple check digit systems like the sort that is used with most linear barcodes will only detect simple errors, like a missing character. More sophisticated systems, especially those used with area barcodes can not only detect but also repair any damage that may have occurred to the code.

Barcode Applications

Today barcodes enjoy wide spread use through all types of businesses. The first major application of barcodes was in the retail sector where the codes would encode article numbers, manufacturer data and pricing. Another prominent use of barcodes is in the transport industry where the codes carry address and tracking information. Finally, two dimensional area codes have recently gained much popularity for use in personal identity cards, drivers licenses and so forth. They are also used for the tagging of electronic parts like computer or memory chips.

An Introduction To Barcode Equipment

A complete barcode system will consist of software, scanners, a printer or labeler and labels for thermo transfer or thermo direct printing. Also of interest are mobile terminals for mobile data acquisition with a built-in scanner or reader, a display and a keyboard. A POS (point of sale) solution will require laser barcode scanners with high throughput and automatic triggering for hands-free barcode scanning.

Barcode Software

Barcodes are created with special software. While barcode software for Microsoft Windows is available, best suited for barcode creation are Apple Macintosh computers. Macs are preferable due to their strong position in the DTP, prepress and graphics market segment. A typical barcode software will support the common symbologies, calculate checksums automatically and will provide a variety of output options with support for the most common images formats (like PNG, TIFF or JPG) and also for Post Script or EPS.

A cheap alternative to dedicated barcode generators are so called barcode fonts. However, the quality a barcode created with such a font will usually not conform to the respective standards.

Depending on the application the use of dedicated, barcode enabled, label printing software may be advised. For example, such software can be used to print sequential barcodes (for serial numbers) or print logos or product images next to the actual barcode.

Barcode Scanner

Barcode Scanners, also known as barcode readers exist in various forms: The most common type are laser scanners. Here a moving laser beam scans the code which results in fast and error free reading. A cheap alternative to laser scanners are CCD scanners that feature a row of light emitting diodes and photo detectors. The earliest type of barcode reader where so called barcode wands, also known a magic wands. Here a single light emitting diode (LED) and a single photo detector are used to detect the typical black and white pattern of a barcode. While laser and CCD barcode scanners scan a barcode as a whole the barcode wand has to be swiped across the code to read it.

Barcode Printers

Barcode printers are used to print the barcode on self adhesive labels. Today most barcode label printers work in either thermo direct or thermo transfer mode. Using the thermo direct principle the print head applies heat to selected parts of the label which then turn dark. This is the same principle as is used with older fax machines. Thermo direct labels are sensitive to light and should not be used if they have to last longer than a few days or weeks. Typical applications are address labels which only have to last a few days.

With thermo transfer printers a heat sensitive ribbon (thermo transfer ribbon) sits between the print head and the label. As heat is applied to the ribbon, ink transfers (hence the name) from the ribbon to the label. Labels that were printed with thermo transfer are very durable. However, besides the actual label the transfer ribbon is another consumable which will increase the printing cost.