Cleaning the Clogged Printhead

Cleaning the Clogged PrintheadIf your inkjet or bubblejet printer has clogged printheads there are 2 possible reasons:

Ink has dried in the nozzles

It is important to note that although genuine inks have anti-clogging agents in their formulation, if you have not used your printer in a long time the ink will dry up in the printhead. With genuine inks a couple of head cleans will usually get the ink flowing again.

If you are using refill or compatible cartridges more aggressive head cleans may be necessary. You may need printhead cleaning solution. The best way to stop ink drying in the printhead is to use your printer every week. Just print out a test page which will use black and colour.

Foreign matter has blocked the holes in the nozzles.

This is caused by foreign matter in the ink – always from small unfiltered particles from refill ink or lower quality compatible cartridges manufactured in a dusty environment – or the printhead collecting paper dust from poor quality paper, or the printhead picking up muck in an overfull parking station.

What is a parking station? This is where the printhead sits when the printer is not printing, usually on the right hand side inside the printer. There is a small rubber cap here which sits under the printhead to protect and prevent it drying out. On most printers it also provides a cleaning function and there is a lot of waste ink in this area- so it is the perfect place to collect dust and muck.

You can get a cotton bud in there and clean it by switching the printer off then on, and then when the printhead moves away from the parking station switch the printer off at the wall. You will then be able to access this area for cleaning.

If foreign matter in the ink has blocked the printheads and your printhead is fixed into the machine, put new original cartridges in your machine as this will usually dissolve any particles in the printhead. If your printhead is removable, take it out of the machine and sit it in about 5ml of very hot (not boiling!) water for a few minutes.

Dry thoroughly and re-insert into the machine and do a couple of printer head cleans. Repeat until the nozzles are unblocked. Always use good quality inks or compatibles in your printer – original inks are always best.

If you open your printer and you can see a fine white powder inside the machine, this is paper dust. This is getting into the print nozzles!

Always use good quality paper and once in a while use compressed air to clean out the inside of your printer (use a can of compressed air, not compressed air from a compressor – or you’ll blow away the electronics in your printer!).

Basic Equipment for Computer Network

Computer NetworkA computer network is a connection between two or more computers that is connected with cable or wireless device. Other peripheral devices that can be connected with computer can also be included in this network such as wireless receivers, printers, scanner, camera, etc.

This connection will make the information or data sharing between each computer and terminal become easier and less time consuming. Every computer and other devices inside a network are called a node.

There are no limits how much nodes that can be connected to a single network. Many big organizations could have millions of nodes in their network.

To make a network connection between nodes, it will require several tools or equipment. Here are some of the most important tools to make a network.

Network cabling

Cabling is use to connect a node to the central hub. These days many organizations are using fiber optic cable that have better ability in sending the data for their network cabling.

Network Adapter

This interface device can be found inside the computer and wireless receiver or router. This device will transfer and receive the data or information to and from the central or hubs. The adapter will influence the speed of data transfer in the network.


This is the main device that gathers and connects all the nodes to become a network. The size of hubs depends on how many nodes that is in the network. For large network, it will require many hubs to be able to support many nodes.


Switches act as a terminal to control the data traffic between nodes and also hubs. It will connect a data from a node to its destination node correctly, more effectively and efficient. Therefore the data transfer will not crash to other data from different nodes that will make the connection halted or crash. A switch is also use to connect nodes that has different speeds to other nodes, so the connection speed will improve.

Should I Buy A Laptop Or A Desktop PC?

Laptop Or Desktop PC?You may find yourself asking that question many times while shopping for a computer. This guide offers you the pros and cons of owning a laptop versus a desktop PC.

Processing speed

Comparing processing speeds, laptops usually lag behind their desktop counterparts. With the rapid advance in microchip technology, the gap between them will become smaller.


Most laptops come with wireless capability out of the box. This means you can get online from any location at home easily without ugly wires if you have a wireless network setup at home. Desktop PC do not typically provide this capability out of the box.


Memory chip tends to be more expensive in Laptop than desktop PC. If you buy a laptop then be prepare to pay more for memory upgrades than you have to with a desktop PC.

Graphics Display

Because of the size of a laptop, most business or entry level laptop use integrated graphics with limited ram. This means most laptops even some expensive ones cannot run graphics intensive applications or 3d games as well as a desktop pc. With a desktop pc, you can buy a dedicated graphics card just to serve a graphics intensive application.


Portability is why everyone wants a laptop these days. Because of their size and weight, it is easier to carry a laptop around as opposed to a desktop PC.

Screen Display

Everyone buy laptop for their portability so laptops usually do not come with screens as big as their desktop counterparts. The screen technology used is usually not as good as those used by desktop pc. Furthermore with a desktop pc, you can always upgrade to a bigger and better screen whereas for laptop you are stuck with the same screen display for the whole lifespan of the laptop.


Laptops do not offer many upgrade options. You can only upgrade memory and hard disk. With a desktop you can upgrade almost anything and only limited by the motherboard. This means a cheap desktop pc offers a longer lifespan than a laptop.

So whether you should buy a cheap laptop or a cheap desktop, ask yourself what are your needs? If you want to be able to use a computer wherever you go, then you are looking at a laptop to fulfill your needs. However if you do not require the portability of a laptop, play a lot of 3D games, graphic intensive applications, if you care about upgradeability to prolong the lifespan of your investment, then desktop PC is a smarter choice for you.

PC With the Size of SD Card

Intel EdisonAfter being introduced in January 2014, the Intel Edison will be distributed on the market in 65 countries by the end of this year with a price tag of $50. Intel Edison is a tiny computer that is only the size of the SD memory card.

Despite the size, the Edison could work like computers in general, complete with LPDDR2 RAM, NAND flash memory, as well as WiFi and Bluetooth connectivity.

As a computer, Intel Edison can be connected to the device monitor, mouse, keyboard, and expansion board using the USB port.

Built with Intel Quark base 22 nm, Edison was devoted to be used for wearable devices and smart electronic products for the consumer, where the physical size and power consumption must be reduced to a minimum.

Intel is targeting the middle segment of wearable computing device. In addition, the Edison will became a bridge to make the Intel mission come true and as a part of the Internet of Things that will able to connect all devices to the Internet network.

A microcontroller that can be programmed in Edison will controlled the input and output as well as a wide variety of other basic functions, while the core processor which uses the x86 architecture can run the Linux open source OS and other operating systems.

Thanks to its versatility, Edison can be used by any computing device. All of it will be depend on the application developers creativity and programming skills.

Intel has invites developers to maximize the ability of Edison until it could become a useful product. To accommodate the work of developers, Intel has provided app store designed specifically for Edison.