Inkjet Printers

The ink jet printers are one of the most widely worldwide used printing technologies thanks to its flexibility, performance and low operating cost and end user price.

These characteristics determine that these devices are present in all areas where there is a computer, both at home and in the office and industry. This article looks at the basics of its operation.

Inkjet printers

The printers use inkjet systems are equipped with a print head with tiny holes throwing ink drops, led by a program that determines how many ink drops and when should be released.


The mixture is important for the formation of color, and it is why color ink jet cartridges usually have three colors (cyan, magenta and yellow) besides black, forming all colors from the mixture of these four inks.

The photo-quality printers can work with up to 12 colors (light magenta, cyan, light black, dark blue, orange, red and green among others) to achieve greater fidelity in color gradations. The fidelity of the image depends the technology used and the quality of the ink.


Bubble jet or thermal

In this technology, the printer heats small amounts of ink at a temperature of about 500° C. With warming a bubble is formed and forces ink droplets leaving the nozzles. The process takes about 20 millionths for each drop formed.

That is the system used by manufacturers such as Hewlett-Packard, Lexmark, Xerox and Canon. The mechanism is in the ink cartridge, making the value of the cartridge is more expensive, but less maintenance and use of all content, because it is under pressure. The resolution is good, and has an optimal cost / benefit ratio.

Inkjet printers


System used by Epson, uses a piezoelectric crystal that changes shape with electricity. Thus, the crystal generates sufficient pressure to expel a small drop of ink, very small, reaching very high resolutions, with almost imperceptible gradations of color.

The printing mechanism is in the printer cartridges, being the cartridges just ink reserves, but with an ink flow based on suction. This system accept dye inks or pigmented base. Its resolution is optimal, but has the disadvantage that the heads may become blocked if that is not used regularly.

Ink Types

Base Colorant

They are soluble molecules in a base colored ink forming a true solution, completely homogeneous and stable. They are fairly inexpensive, and are used both as original cartridges recharged, its durability is average and it is not waterproof.

Inkjet printers


Are insoluble colored particles that are dispersed, usually by additives, so that they remain almost stabilized and homogeneous suspension. Epson and other manufacturers to use in their original cartridges.

The definition of colors is greater than the dye ink, and also durability, used papers with good quality becomes higher the 10 years.

Because of its high degree of water resistance, it is also used in transfer papers, widely used for printing t-shirts, shirts and other fabrics.

Inkjet printers

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Tips for buying a color laser printer

The laser printers are currently the main choice of many offices and companies around the world, primarily due to their advantages, which include the print speed, quality and durability of its components. According to recent research, the sales of monochrome and color laser printers is increasing year by year.

Although more expensive than others alternatives such as inkjet printers, more and more offices are adopting color laser printers because they manage to do the job in the most efficient office and with better performance, besides having much higher quality.

Tips buy laser color printer

No matter if we have a graphic design company or a buffet of lawyers, the laser color printer will help us achieve a presentation of our products and highly professional services.

In the case we have a business that requires frequent color printing, no doubt that we seriously consider buying a color laser printer.

If you have the budget and need one of these devices, then in this article we have at our disposal a number of important tips that will help us understand the fundamental aspects to consider when buying a laser printer for our SME or office.


Normally the laser printer resolution is measured in terms of DPI (dots per inch). The larger of the number of DPI, the sharper the image. We must select a resolution of 300 in the case that we will use color laser printer for printing text. If our printing needs go beyond simple texts, then we must consider purchasing a printer that offers at least 600 resolution.

Printing speed

When we listen to experts talk about the printing speed of a laser printer, we must consider that they are talking about two very important concepts. These are the so-called speed PPM (pages per minute) and the time that the printer uses to print the first page.

For example, we have the need to print 200 pages, a laser printer 8 PPM would take about 30 minutes to print the number of sheets. The same number of pages can be printed in just five minutes in the case of using a laser printer 35 ppm.

Tips buy laser color printer

However, we must consider the speed PPM is closely related to high-volume printing, and if we do not need that capacity, it is important to think about buying a printer PPM lower speed, with consequent money saving associated.

LAN and Wi-Fi Connectivity

This is a very important resource, especially for offices and companies who want to share the printer among multiple jobs.


At this point, we must pay attention to the capacity of RAM, since the final performance of the printer depends of this. We will also have to know if this can be expanded. Obviously with a larger amount of RAM, the better the performance of the printer.

Print Paper Size

What size paper generally used for printing? This question is one of the most important we must ask, and the answer will probably depend on the nature of our work. While most color laser printers use A4 paper, some firms may require printers to print a larger size, such as Legal.

Tips buy laser color printer

Work cycle

Laser printers are classified by the ability to print certain number of pages per month. This is called a cycle. Choose the printer that achieves meet your monthly print.


Usually a color laser printer more expensive will offer lower cost of printing. This is closely related with the final cost of supplies, then we assess whether the value of replacement toner cartridges is not prohibitive for the budget of our company.

Tips buy laser color printer

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How to solve printer problems by ourselves

Printers today are essential devices for a lot of users, but nobody can deny that they have a difficult personality. How much more do you need the printer, more complicated task. Jammed paper, horrible print quality, takes too long or simply do not want to print. These are just some of the problems that we have with a printer. In this article we will learn to resolve them without recourse to the technician.

When you least expect it, the printers can be locked, persist in foolishness or brings lower print quality. Here are some tips to help you deal with these headaches so common when working with printers.

How to solve printer problems

If your printer is locked

Before doing anything, you’ll have to remove the paper that is inside the printer. It is necessary to look at the manual to make sure you’ll get the paper in a way that does not damage any mechanical part of the printer. In the user´s manual, look for instructions on how to reach the place where the paper is stuck, and how to get the blade, ideally without breaking.

In the case of not having the printer user manual, the basic rule is to start pulling slowly but surely, in the direction in which the paper comes out normally. And if you cannot remove all at once, pay attention to the loose pieces and remove them with tweezers, as it certainly cause problems later.

How to solve printer problems

When the problem occurs in the entry sheets tray of the printer, that is, before you start printing, we must consider certain factors that can ruin the task. The first step is to take good care of the paper. Make sure when you save it, it is dry and on a flat surface. Do not put a crumpled paper or with imperfections in the printer tray: crumpled paper is one of the main causes of these problems.

Do not let the paper stay more than a day in vertical trays, as the sheets may be bent slightly and pressure on cylinders may affect the operation of the printer. Furthermore, we should always regulate the rule of the printer right to the size of paper that we will use. This is important because the misplaced paper can be taken “twisted” and lock the printer.

Problems with print quality

If you are having problems with print quality, you’ll have to take a look at the configuration of the printer. Pay attention to the following:

Type of paper: Make sure the paper type is supported by your printer. The weight, for example, can affect how the printer adjusts its cylinders to take the papers, and also how long it takes a laser printer to sensitize the paper.

Using a standard print paper, or photo print paper changes the mode and the amount of ink that the printer uses to print a sheet, which affects print quality. If you are printing a photo as “Picture”, you must use a special paper for that, and if you use a poor quality paper, the final print will be bad.

How to solve printer problems

Quality: the different levels of print quality as “Excellent”, “Normal” and “Draft”, affect the speed, accuracy and amount of ink used. Choose “Draft” is a good idea if you’re only printing a document without much importance or something for internal use. Choose “Optimal” only if you are printing documents to show publicly as a formal letter or a photo.

Document Type: Some printers allow you to specify if you are printing a memo a newsletter, or a photo, and automatically adjust the settings for each print type. Besides that, most of today’s printers have their own maintenance tools that will realign and clean the cartridges. Try to run these tools once or twice to see if they fix your problem.

How to solve printer problems

If your printer takes too long to print

The “slow” printings can be caused by a handful of different factors. Here are some tips to solve this problem:

In principle, check if you are not printing on “High Quality” or “Optimal” mode, which will take longer than for example “Normal” or “Draft” mode. Depending on what you’re printing, your connection to the printer may be the culprit. The wireless connections can be affected by the distance to the printer, interference with radio waves (for other wireless networks or cordless phones) and physical barriers (such as a wall between the router and printer).

All these factors are able to decrease the transfer rate, which means that the printer will take longer for the document to be printed. If the printer is connected directly to the PC, check the connection type: Usually the USB connections have a lower bandwidth than Ethernet connections.

How to solve printer problems

If you frequently print many documents or very large documents, connect your printer via Ethernet (if possible) is a good idea. If you print little, basically text documents with very few or no image, a wireless or USB connection must be sufficient.

In addition to this, most home printers rely on the computer to process documents prior to printing, so if the memory and the processor in your PC are limited in power and quantity, the documents will take longer to be printed. If a printer has its own memory (something usually found in models of office), make sure that your memory is sufficient to struggle with the complexity and amount of work that will be sent.

The problems started after you began to print many more pages than usual? Check the monthly duty cycle of the printer (usually reported in the manual) to check what their printability.

How to solve printer problems

If you have a home printer, designed to print, perhaps, a few dozen pages per day, but now are printing a hundred or more pages a day, your printer is overloaded and should be fighting for all that work.

This creates a wear fast parts, resulting in printing problems and a drop in quality. If you’re printing a 25% or more than specified in the monthly cycle, then maybe it is time to buy a new printer with higher capacity.

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Output peripherals

An output device is an electronic device that can print, display, or send signals that are easily interpreted by the user. Basically, an output device serves to show to operator of the computer the operations that just made.

That is, the output device communicates with us to show the result of our work, that can easily observe them through the monitor or printer, the two most commonly used output peripherals. There is also a third type of output device, commonly known as speakers or headphones, which allow us to hear what the computer has to say.

Output Peripherals

As mentioned, the most common output peripherals are the monitor and printer. That’s why then we will know some of its most important technical features.


Our PC monitor is certainly the most important device of our equipment, since without it we could not know what is happening in the computer.

This display device is constituted by several luminous dots called pixels. The amount of pixels which determines the graphic resolution thereof; the higher it is the number of pixels, the higher the resolution, since if the same image is reproduced on a larger number of viewing points, will greatly improve the detail.

Output Peripherals

There are two main types of monitor, the so-called CRT, or “Cathode ray tube“, and new flat panel monitors, which we can find on the market two variants, LED or LCD.

CRT monitors are the oldest monitor type, virtually obsolete now in the market, and it is almost impossible to find one of them, except in the used market. This is because they have been replaced by LCD monitors or LED, which grant a long series of advantages over CRT.

LED monitors or LCD monitors also use very different technology to that used with CRTs monitors, and offer many advantages over the way the data is presented on the screen, since they are larger and generally in widescreen format.

Output Peripherals


The printer is one of the most important output peripherals as they were designed to perpetuate the results of the data processed by the computer on paper.

Unlike in the case of the monitor, the printer is not an essential device, but is especially important when we need to represent the information processed by the PC in paper in the form of lists, graphs, drawings, and other images.

Currently there are several types of printers, the most widely used at the time are the laser and multifunction printers, a special class of device that meets scanner, copier and printer in single device.

Output Peripherals

Note that we can find other types of printers, which are used in more specialized areas. Among them we can mention the color laser printers, plotters and billboards printers, all used in the graphic area, and dot matrix printers, although a fairly old technology still widely used by businesses, mainly due to the cheapness of supplies.

Output Peripherals

If you want to know even more about printers, click on this link.


Speakers or headphones are devices that allow us to hear the sounds produced by the computer such as notifications, warning sounds, and of course, our favorite music. All these sounds are produced by the system audio board.

Output Peripherals

The speakers, along with the headphones, are the most used devices for listening to music through the audio player of your operating system.

Today we can find several types of speakers, including standard two-channel speakers, and multichannel speakers that can handle sounds from sound cards with 6 or 8 audio outputs.

Computer peripherals

In computing, the term applies to any peripheral or accessory equipment that is connected to the CPU (central processing unit). For example: printers, scanners, card readers and CD and DVD drives, audio cards, mouse, keyboard, external storage drivers, monitors and webcams are examples of peripherals.

From the first time that was listened to speak about calculators, to the reality of current supercomputers, the development and improvement of computer accessories increasingly evolves, as we can see in this article.

Computer Peripherals

Common input peripherals

Each peripheral has a well-defined role. Some of them perform tasks requested by the computer, such as the case of the printer, or allow us give orders to the computer to run a task, such as a mouse or keyboard, always according to the function for which they were designed.

Among the simplest peripherals we can cite the keyboard that allow sends to computer information entered by the operator, the mouse, that allows sending information by moving or the actions of buttons, and the printer, that receives information from the computer and print that information on paper.

Computer Peripherals

Others, a little more complex, such as the sound card, that receives information from the processor and sends it to the speakers, touch-sensitive systems, heat sensors, light sensors, modem, game controllers like joysticks, speakers, and a multitude of others devices.

There are three types of peripherals: The input peripherals, that send information to the computer, such as keyboard, mouse, microphone, the output peripherals, that transmit information from the computer to the user through the monitor, printer, speakers or headphones, and peripherals mixed, that send and receive information to and from the computer simultaneously, such as scanners, CD and DVD Drives and VoIP phones, among others.

Computer Peripherals

The main information input peripherals include: keyboard, mouse, CD and DVD drives, scanner, microphone, joystick, touch screen and stylus.

The main information output peripherals are: video monitor, recorder and CD player, speakers, laser or inkjet printer, motion sensors, temperature and virtual reality glasses.

The main data input and output peripheral are: modem, CD and DVD drives and hard disk.

Computer Peripherals

If you wish, you can get more information about the different types of input and output peripherals clicking on this link.

Input and Output Peripherals

The I/O (input and output) peripheral are used primarily for communication between the computer and the external environment. They provide the ability to enter commands to the PC, and vice versa, i.e. send commands to outside to perform some task on a given device.

In addition, they also have the peculiarity of manage their own transfer rates, without the computer having to deal with the balance of the transmission speed. Among these components we can mention keyboard, monitor and printer.

Computer peripherals

CD/DVD Drive (Input and Output): Its function is to rotate an optical disk at a constant speed to transfer programs or data from this disk to the computer or vice versa. This operation is performed through a recording and reading head which moves back and forth on the disc surface. The data recorded on the disc can be read and used as a reference in a future operations.

Computer peripherals

Hard Disk or HD (Input and Output): This types of storage units are characterized by greater storage capacity and faster operation.

It consists of a series of discs of rigid material, grouped in a single axis, each disc having a head. The heads float on the surface of the disc supported on a cushion of air, which means they must be kept in sealed boxes to avoid problems caused by dust and other foreign matter.

Computer peripherals

Monitor (output device): This is the device that is used to allow the user to view the data and graphics elements needed to perform its task. Without the monitor, it would be virtually impossible to operate a computer. This screen is connected to the computer through the port of the video card.

Computer peripherals

Mouse (input device): The mouse is placed on any flat surface, and when it moves, it also moves the cursor on the screen with extreme agility. Thus, the user can move to any part of the screen, press the button and select the desired operation and perform all possible actions.

Computer peripherals

Joystick (Input device): The joystick has the particularity of being able to move in many directions and axles, smoothly and a very agile way, which makes especially useful for all sorts of games and other implementations. This device is moved similarly to the mouse, ie, the movements the user makes with the joystick are repeated on the screen.

Computer peripherals

Printer (Output device): This peripherical is used to print data on paper. Currently, there are three main types of printers: dot matrix, ink jet and laser.

Computer peripherals

Modem (Input and output): The modem is a signal conversion device, which is capable of transmitting data over phone lines. The MODEM term is derived from the MOdulation and DEModulation words. Used for internet connection.

Computer peripherals

Keyboard (input device): The most important means of data entry, which establishes a direct relationship between the user and the computer.

Computer peripherals

Scanner (Input device): An image scanner is an input device that allows scan pages or pictures from printed material such as magazines, newspapers and posters, and convert them to digital data so they can be used by programs such as Photoshop, OCR applications and other software designed to work with images.

Computer peripherals

Scanned images can be modified and reproduced again by suitable printing equipment. In this way we can make posters or any other type of work using photographs.