How To Clean Your Computer Printer

It’s very important to know the basic ways on how to clean or maintain your computer printer. You may not be aware that using chemical solutions to wipe down your printer may be one of the reasons for printer's breakdown. So, try to avoid the heavy use of water, alcohol or harsh cleaning agents but rather use a very light amount of cleaning chemicals or soap.

Here are some simple ways to clean your printer. First is to switch off your printer and let it cool off for an hour before opening to clean. Second, remove the toner cartridge to avoid ink from spilling out and use a toner cloth to clean the exterior of the cartridge. Third, use a soft brush to clean the other parts of the printer that are hard to reach. Fourth, after making sure that all the parts are cleaned reinsert back the toner cartridge, close the cover and switch on the printer to run a test print. These few tips may be simple yet very helpful in maintaining the life or usage of our printer.

By: Daisy Gamboa

Voltage Regulators And Their Uses

Voltage regulators are electronic devices whose sole task is to maintain a constant voltage level in the circuit. These are used extensively in computer power units. Voltage regulators can be simple or complex based on their purpose of use.

In electronic systems and computers, voltage regulators are used to stabilize the dc voltage that is fed in to the system. Electronic and electromechanical voltage regulators are widely used. In computers and electronic circuitry, electronic voltage regulators are mostly used.

Voltage regulators also serve as dc voltage stabilizers as they stabilize the dc voltage. Apart from their use in computer systems, they are also used in power circuits and power generation projects. Voltage regulators play an important role in maintaining a constant level of required voltage. Some of the voltage regulators also contain amplifier circuitry for better operation at unfavorable load.

How To Clean Your Computer Printer

It’s very important to know the basic ways on how to clean or maintain your computer printer. You may not be aware that using chemical solutions to wipe down your printer may be one of the reasons for printer's breakdown. So, try to avoid the heavy use of water, alcohol or harsh cleaning agents but rather use a very light amount of cleaning chemicals or soap.

Here are some simple ways to clean your printer. First is to switch off your printer and let it cool off for an hour before opening to clean. Second, remove the toner cartridge to avoid ink from spilling out and use a toner cloth to clean the exterior of the cartridge. Third, use a soft brush to clean the other parts of the printer that are hard to reach. Fourth, after making sure that all the parts are cleaned reinsert back the toner cartridge, close the cover and switch on the printer to run a test print. These few tips may be simple yet very helpful in maintaining the life or usage of our printer.

By: Daisy Gamboa

Voltage Regulators And Their Uses

Voltage regulators are electronic devices whose sole task is to maintain a constant voltage level in the circuit. These are used extensively in computer power units. Voltage regulators can be simple or complex based on their purpose of use.

In electronic systems and computers, voltage regulators are used to stabilize the dc voltage that is fed in to the system. Electronic and electromechanical voltage regulators are widely used. In computers and electronic circuitry, electronic voltage regulators are mostly used.

Voltage regulators also serve as dc voltage stabilizers as they stabilize the dc voltage. Apart from their use in computer systems, they are also used in power circuits and power generation projects. Voltage regulators play an important role in maintaining a constant level of required voltage. Some of the voltage regulators also contain amplifier circuitry for better operation at unfavorable load.

Sensor operated sirens for emergency

A sensor operated siren alerts a particular area with a alarm siren sound when ever something goes wrong as is detected by sensors. Such alarm sirens include fire alarm sires, virus sirs, pressure sirens or contamination sirens etc. Alarm sirens are employed for safety purposes so that in case of a disaster, the life and property damage can be minimized or prevented. Many of these siren systems are equipped with mobile devices which send SOS signal or call for help in case of emergencies. In places like museums and banks, a motion detecting siren is employed in case of attempt of a robbery. These sirens go off once they detect a motion in the camera network feed. These systems then report the nearby police or emergency service systems for help. Alarm sirens are employed compulsorily in every major infrastructure for safety purposes. Places like nuclear plants, thermal plants and other important and deadly infrastructures have very strict alarm siren surveillance to detect anything odd.
By: Sandeep Mahanthi

Wireless keyboards vs. Wired keyboards

Every computer needs a keyboard. Many of the computers have a wired keyboard by default. And many macs have a wireless keyboard. In my view, wireless keyboards are unnecessary for regular use. You have frequently change the battery of the keyboard. Generally, wired keyboards come with a long wire for a great flexibility. Most of the gaming keyboard rigs are wired due to their higher power requirements. Having a wireless keyboard eliminates the need for cables. But hardly a few use the wireless keyboard really for the purpose they are built. These very few users are home theater users who find it incredibly disturbing to go near the keyboard just to seek forward in a movie. In such cases, wireless keyboard becomes inevitable. But for general purposes, a wired keyboard is great. Besides, with wired keyboards, you could save money on the batteries.
By: Sandeep Mahanthi

Refilling a printer cartridge

A printer cartridge has to be refilled with ink regularly with use. This is a very sensitive process and improper handling of these printer cartridges can lead to damage and render them unusable. All cartridges contain one or more ink tank or ink reservoir. You have to locate this ink tank. Some of the cartridges already have a role enabling you to refill the cartridge easily with the toner. But other cartridges do not have a hole. Such a cartridge can be filled by making a hole yourself and carefully closing the hole by burning. Usually, some refiller kits come with burning equipment to close the hole. This way you would be able to fill in the ink in to your cartridge. Newer cartridges have smart chips which disable them after their expected life period. To make you cartridge work past its lifetime, you need to replace these chips with a reprogrammed one. Such chips can also be found in many online stores or toner stores.
By: Sandeep Mahanthi

Storage and rack shelves for technical equipment

The rack shelves derive their name from their previous use of mounting relays for railways. These type of rack shelves are now a days used to support industrial equipment and computers. There are standard sizes for these shelves and the industrial equipment is also manufactured in the same dimensions for compatibility. Various LAN devices and servers are mounted in to these racks helves so that the heavy and dense amount of hardware does not occupy more space. In places where huge networks are required, we can observe many shelves which are used to hold the LAN equipment like modems, routers and switches. Some of these shelves also have cooling fans for cooling down the electronic equipment. Storage shelve furniture are other kind of shelves which are used for general storage of items. They are used in kitchens, living rooms and in many parts of houses to hold different items.
By: Sandeep Mahanthi

Printer ink cartridges and their types

Every printer needs an ink cartridge. And these cartridges differ for different types of printers. Most ink cartridges have one or more partitions of ink stored in them. Some of these cartridges also contain an electronic chip for communication with the printer. There are mainly two types of printer ink. They are thermal and peizo electric. All the printers manufactured by companies like HP, Canon and Lexmark except Epson use the thermal ink. The thermal ink cartridges contain ink reservoirs with a metal and a resistor with a nozzle. According to the signal sent, the resistor heats up the metal and the ink surrounding it vaporizes and enters nozzle from where it is printed on to the paper. All Epson printers use only peizo electric printer ink cartridges. They have a peizo crystal which responds physically with the signal sent and controls the amount of ink delivered on to the paper.
By: Sandeep Mahanthi

Supercool upgrades related to Car Audio devices

The audio devices are undoubtedly the soul comforters on a long trip. Let it be rock and roll or hip-hop, having good audio equipment installed in your car is a good way to show off. Many think that upgrading their car audio involves a lot of money, but according to me, some cool audio upgrades do not require a lot of bucks. Firstly, you can buy an FM transmitter. Devices like iport can transfer audio from your ipod via FM radio to your car audio system. So you would not need an extra cable. You can also get a satellite radio receiver to ensure that you do not run out of tracks at any point. You can buy a bass booster for your car audio. A good bazooka booster can make the others on the road think that there is an earthquake every time you drive. You can also upgrade your speakers as most stock speakers are of cheap quality. Upgrading your car amplifier and speaker wires will add an awesome quality to your car audio. If you can afford to upgrade the head device too, then make sure that it also got a USB port.
By: Sandeep Mahanthi

Different types of server rack shelfs

A rack or a shelf is simply a standardized frame structure for loading server modules or computing or industrial equipment. All the industrial equipment, computing and server equipment is designed in standardized dimensions of the rack shelf. The standard dimensions are multiples of 1.75 inches. It is also called one rack unit or 1U. The typical size for industrial equipment rack shelf is 42U. Professional 19 inch racks are always made for home equipment like audio devices, amplifiers and sound effects units like mixers. They are very widely used for mounting computer server equipment so that these heavy hardware configurations do not occupy much floor space or shelf space. Some computer server shelf are equipped with cooling units so that the servers do not overheat. These rack shelves are also used for mounting networking equipment like switches and heavy routers and hardware filtering units in large networks.
By: Sandeep Mahanthi

Choosing a good Wireless Bluetooth headset

Bluetooth headsets are used for wireless transmission of music and voice in mobile devices like mobiles and laptops. While choosing a Bluetooth headset, you must be aware that they come in different types. Standard Bluetooth headset devices are those which use the version 1.0 or 1.1 and they are only one side piece for voice communication. These headsets can only access handsfree profile of your Bluetooth mobile device. This type of headset is very unsuitable for listening music as it is dependent on your device's operating system. Even if it plays music,it is of very low quality. So, if you are choosing a Bluetooth headset for entertainment and music purpose, then you better choose a stereo Bluetooth headset which supports A2DP profile. You should know that while using your A2DP bluetooth headset, it may deactivate the microphone device. So, you should choose a device which will not deactivate the microphone so that you can use it to both entertainment and voice communication.
By: Sandeep Mahanthi

Canon Digital Cameras

Canon is a multinational company and one of the top producers of digital cameras. Canon produces both point to shoot and professional digital SLR cameras. The canon powershot series is a point to shoot cameras which have become popular mainly because of their simple design and interface with robust features. Powershot cameras are the one of the most selling camera series worldwide. Powershot G is another series which is a near SLR, but still point to shoot camera. It is a prosumer photography model. Canon digital IXUS is a compact line of digital cameras. These cameras have very small physical dimension with good features and optics. EOS is a professional grade DSLR camera series. EOS was a name derived from the previous models of film SLR cameras and is still being continued for DSLR cameras of Canon. Apart from these digital cameras, Canon is one of the world leaders in producing photography lens with super zoom capabilities.
By: Sandeep Mahanthi

Top free tools to make the most out of your webcam

Webcam was once just a cheap camera with blurry images used for video chatting. If you are still living in that kind of world, its clearly time for you to wake up. Here are three super cool tools that you can use with your webcam:
1. ManyCam: This application can be used for enhancing the details of the image that is captured with your webcam. It can help you to look better in video chats with its range of dynamic options.
2. YawCam: This is another application that turns your webcam in to a motion-sensing security camera. It automatically back ups the captured data to ftp or email account.
3. LemonScreen: This is another cool application that can be used for logging in to windows using face recognition.

Now you know what else you can do with your webcam. Apart from these tools, there are a lot of other freewares that can transform your webcam to a security camera or to protect your laptop from theft by sending the pictures of the thief.

By: Sandeep Mahanthi