A Basic Guide to Printers

May 17, 2016 at 9:10 pm

A printer is a peripheral that produces a graphic or a text document stored in electronic form on a physical print media such as paper. They are either black and white or colored. The printers are attached by printer cable, usb (universal serial bus) cable to a computer. Some of the printers have built-in network interfaces. They may be Ethernet based or wireless and can serve as hard copy for any user.


A few modern printers have advanced features; they can be directly interfaced to electronic media like the memory cards and even to image capture devices like scanners and digital cameras. Some of the printers are combined with fax machines or document scanners in a single unit can perform the task of photocopiers. These multifunction printers include scanning, copying and printing among their main features.

Printers are classified according to the printer technology they make use of. Different technologies are capable of various different levels of print speed, cost, text quality and noise. Other aspect of printer technology is resistance to alteration: liquid ink, such as from fabric ribbon or an inkjet, which is absorbed by the paper, so the documents that are printed with ink are more difficult to alter as compared to the documents printed with solid ink or toner as they do not penetrate below the surface of paper.

Modern printing technologies:

1. Toner based printer: laser printers rapidly produces high quality graphics and text. Just like multifunction printers and digital photocopiers, laser printers make use of xerographic printing process. LED printer is another toner based printer which uses LEDs instead of laser.

2. Liquid inkjet printers: These printers operate by propelling different sized droplets of ink onto any size of page. Liquid inkjet printers are the most common type of computer printers that are used by consumers. They can be used in small home offices too. These printers can print with a resolution of 1200 to 4800 dots per inch.

3. Solid ink printers: they are also known as phase change printers and area type of thermal transfer printers.

4. Inkless printers: UV printers and thermal printers are type of inkless printers. UV printers use a special reusable paper coated with UV light sensitive chemicals. Thermal printers work by making use of special heat sensitive papers and by selectively heating regions on it.

5. Dot matrix printers: commonly used in home office for lost cost, low quality applications or the applications demanding high volume printing. They make use of small pins to create precise dots but are quickly going out of style.

6. 3D printers: okay, not something you will probably buy for your home. But they are worth mentioning because 3D printing is so cool.

Scanners and printers are some of the most popular pieces of equipment in home offices today. As technology moves forward more advanced features are always being added. Things like wireless network with multiple devices is now becoming desirable as people wish to print directly from their iPhone or iPad.

Photo Scanners by Epson

May 10, 2016 at 5:33 pm

When people start looking for a photo scanner they quickly find that many of the top models available are made by Epson.

Having so many options in photo scanners just from Epson makes it easy to compare features across the various models. You can see what you get and what you don’t at the different price points. Comparing image scanners across manufacturers often can be a bit more difficult as it can be hard to determine how similar certain features are like image-enhancing technologies.

If you are shopping for the best scanner for photos and are considering a Epson there are a few choices. Here I will list most of the bestselling Epson scanners and try to break down the key differences between models.

epson scanners

FACT: Epson’s photo scanner models increase in features and price alongside the model number. So the V700 has more features and a higher price tag than the V300.

Most Popular Epson Models

The Epson V300 is one of the cheaper photo scanners that can still handle film and slides. Compared to pricier Epson models it does not feature Digital ICE and does not come with Adobe Photoshop Elements.

The V330 is very similar to the V300 in features but does include ArcSoft Scan-n-Stitch Deluxe software for scanning large items. A good cheap alternative to a larger scanner.

The Epson V500 offers the Digital ICE technology (dust and scratch removal) for film scanning along with a step up in optical resolution over the V300. Photoshop Elements is also included with purchase.

The V600 is very similar to the V500 except it offers Digital ICE for both film and photo scanning. A good medium value photo scanner and a great digital slide converter.

The Epson V700 is a very high quality photo scanner designed more for film and slide scanning. It has a higher optical density rating than the V600 (improved image quality) and can handle 3 times more slides in one run. It can also scan large-format film. Comes with LaserSoft Imaging SilverFast software in addition to Photoshop Elements.

photo scanning tips

Tips on Photo Scanning

Whether you buy an Epson photo scanner, a Canon scanner or something else even, here are a few tips to help you with scanning your photos.

1. Read the scanner manual.

If you have a new scanner or have never scanned a photo before, take a few moments to read through your scanner’s manual. I know, it isn’t terribly exciting, but familiarizing yourself with the scanner and how it functions will make the process easier in the long run.

2. Clean your scanner and photos

Just a little bit of dust will be easily picked up when you start scanning, so make sure you clean off the scanner’s glass before you start. Never use a paper towel and Windex! You want to use a lint-free cloth and just wipe gently in one direction.

Same goes for your photos. Wipe them off gently with a lint-free cloth to remove any dirt and dust. Compressed air will also work.

3. Test your scanner

Before you run off and start scanning 50 photos in a row, do a few test runs and see if you are happy with the results. If you are unsure of what resolution to use to scan your photos, try scanning one photo at 3 to 4 different resolutions and see if going higher makes any difference (300 dpi is a good starting point).

The higher the resolution you use to scan, the larger your file sizes will be and the more time it will take to scan. So less is more within reason – you still want good scans.

4. Batch scan if possible

Most photo scanners will allow you to scan multiple photos at one time. If so, do another test run to see how many photos you can place on the scanner bed at once without the scanner merging pictures. Scanning in batches will save you some a fair amount of time.

5. Organize your files

Make sure you save all your scans to a particular folder. Even better is to save the images into subfolders based on the time period or subject in the photos. This will make future retrieval easier.

WinCleaner One-Click Software

May 6, 2016 at 7:30 pm

If you are looking for ways to increase your computer performance, WinCleaner One-Click might be your answer.  When you have tried the traditional routes of defragmenting, running a disk cleanup and removing spyware, but you are still have PC performance problems, you need to look into cleaning the registry of your computer.  A registry can harbor old, orphaned and misplaced information.  If you are experiencing sluggishness, error messages or even system crashes, invalid registry keys may be to blame.  The safest and easiest way to clean a registry and increase your computer’s functionality is to use registry cleaning software.

harddrive cleaner

What is a Registry Cleaner?

Registry cleaner software is a software program people install or run on their computers which helps clean out the Windows Registry of errors or registry keys that are non-functioning, lost and orphaned registry keys from the countless times a program is installed and later uninstalled and registry keys placed there by viruses and other malicious invaders to allow the malicious programs to control the computer.

When a user notices his computer is slowed down considerably, for example when starting a software program which used to open and start much faster and now it takes ten times as long to start, it is a sign of a “dirty” registry or other such problems. If, after other solutions do not work to speed up your computer, using a registry cleaning program could help speed things up a bit.

The cleaning software is either installed as a program into the program folder located within the Windows system files. This is an installation as any other program would install onto your computer. However, some cleaners simply download and run without needing installation, which is generally preferred because it is the installation behavior that leaves behind orphaned registry keys.

The cleaner, once installed or run, runs a program that scans the Windows registry and compared the registry keys to all of the known keys of the Windows operating system. Any that do not belong are scanned and compared against any programs that are installed on your operating system. If any do not belong to these programs, they are shown to the user as a possible key that does not belong on the operating system or is not part of any needed program and advises the user to delete the key.

Wincleaner One-Click

WinCleaner One-Click software is extremely user friendly and installation of the program is simple.  The software has the ability to clean not only your registry, but it will also tidy up your internet files, startup programs, junk files and any cookies that may be stored on your PC.  It features a diagnostic tool that warns you if failure of the hard drive is imminent.  A temperature monitor alerts you if the hard drive is getting too warm.  The diagnostic tool also has a system in place to let you know if the capacity of the hard drive is nearing its limits.  In addition, it offers a feature that enables you to easily uninstall programs and applications.  Some programs are stubborn and do not uninstall as easily as others, but this cleaning software will remove even those.

When it comes to cleaning the registry, you want to be able to effectively remove keys and files from your hard drive.  WinCleaner not only makes this possible, but it also provides a recovery option in case you remove an item by mistake.  You should, however, always create a backup of your hard drive prior to removing or changing any pertinent files.  A backup utility is not provided with this software, so you will need to use the one that came with your operating system.

The cleaning software also offers special tools to increase available memory and storage, organize files, optimize the registry, and defragment specific, user chosen, files.  In addition to these features, the software provides a pop-up blocker and an anti-virus program.  Both of these can be extremely useful.  Viruses can do a lot of damage and pop-ups are a common route that viruses take to get into your system.  This program comes with a built-in manual.  Additionally, you can register your product online.  Once you log in, you can access a FAQ section to answer your questions and a help forum that provides solutions for problems that you may be experiencing.  The software comes with Auto Update so that you will always be running the program at its best.

WinCleaner One-Click is an affordable way to restore your computer to optimal conditions.  It will improve the performance of your system, boost your start up time and safely get rid of unwanted files.

Choosing The Best Flatbed Scanner

April 30, 2016 at 11:11 am

This is a scanner buying guide written by a friend of mine. I have shared some of these tips before but there is some additional information available here that shoppers may find valuable.

buying guidelines

Peripherals are a major part of your computer system. They allow you to perform tasks that you would ordinarily not be able to do like printing, faxing, extra storage and maneuver your pointer around your screen. One additional peripheral is a scanner.

When buying a scanner you should know how to choose the best scanner for your needs. With a few tips on what to look for this should be a relatively simple task, but do take your time before making a decision.


If your operating system comes across a program that it cannot understand it is said to be incompatible. It is important to ensure that the scanner chosen is specifically for the system your computer uses. They will usually plug into a USB port or hub. These are the most common units available. There are some units that are intended for larger systems such as in an office which most always uses a Mac operating system.


There is normally no control panel to flatbed scanners. Instead they are generally sold with software that tells the scanner what to do and how to do it. This is where all of the options such as scan, copy, resolution and options are located. The only buttons or switches that are usually found on the scanner is an on and off button. Occasionally if it is a part of a large unit with a fax, copier and printer, it will have a control panel located on the unit itself.

Software is usually always included with each unit sold. This is the program that allows you to choose such options as resolution, color depth, scan or copy and in most cases a photo editing program. The editing program will let you crop and modify any document or photo you have scanned. An operating software will let you print or save the edited image to your computer or send it to a printer.

Color Depth

Color depth refers to whether you get true colors when scanning an object, picture or document. The unit uses bit color to determine whether the color is true or just close. Most commonly used in home or personal units is 36-bit color. This means there are 36 possible colors that an image can be displayed. The more bits you scanner can produce, the truer the colors will be.

Dots per Inch (DPI)

Many people do not understand what a dpi is. This is how many dots are in each square inch contains – dots per inch. It is what makes up the resolution of an image. Typically the more dpi the image contains, the more crisp and clear it is displayed on your computer screen or when printed.


A warranty is very important when choosing your flatbed scanner. Most come with at least a 90 day warranty. If you are offered the option of purchasing additional warranty, do so. The least you should have is a one year policy. This ensures the device is covered should it fail to operate properly.


When you compare the options and features of the various models of scanners available, you will notice you also have options in the price. The more options and features the unit contains, the more you will normally have to pay. Specialty scanners like a business card scanner may cost a bit more than your basic flatbed. If you want it primarily for copying and producing photos, you should consider one of the more expensive ones that offers the best options.

These are only a few tips on how to choose the best flatbed scanner. Recommendations are always a help for choosing so take the time to do your research and see what is available to suit your needs.

Advantages of Windows Based Tablets

April 25, 2016 at 5:49 pm

A Windows-based tablet has the advantage of compatibility with your other PCs and associated software. They also generally tend to have the processing power of a laptop making them a bit more powerful.

Many people are excited by Windows-based tablets since they can function more like a laptop or netbook. If you need a tablet that can run regular software programs, then a Windows tablet is likely a better choice than its competitors. In fact, the Microsoft Surface is a really nice tablet and something consider over a laptop. Unfortunately, the price is still a bit high for me but hopefully they will come down in a few years.

Windows Tablet vs iPad vs Android Tablet

With the growing selection of tablets on the market today it is getting more difficult to know how one compares to another. But we can break down tablet computers into 3 main categories based on their operating systems: Windows, Android, and Apple’s iOS.

The iPad is the device that really opened up the market for tablets. With the popularity of Apple’s iPhone and it’s growing application market, a large device with all the same functions and more was a great gamble. People use their iPad for internet browsing, email, videos and as an eReader among other things.

Android tablets are used for the same purposes as an iPad. Android has its own market of apps and Android phone users enjoy having a tablet that is compatible with their phone. Android tablets have gained in market share likely also due to their multiple price points.

Windows tablets are still a bit young in the market. But there does appear to be a market for the added functionality that a Windows-based tablet can provide that the others don’t: the functionality of a laptop as far as computing power. A Windows tablet can run all of the same software as your laptop or netbook, yet is even more portable.

So if you would like to have the functionality of a laptop in a smaller size (software, printing, etc), then a Windows tablet is worth considering. The best Windows tablets will come at a cost and will also be heavier, but it all comes down to what you will get the most use of.

Comparing Tablet Features – Operating Systems

If you are interested in a tablet you first need to understand the differences in operating systems. There are iOS (iPad), Android (multiple manufacturers), and Windows (multiple manufacturers). The iPad and Android-based tablets will each have their own affiliated app libraries. Windows-based tablets will run standard PC programs.

The screen size is another important feature to consider. A smaller screen will be harder to read but it will also be cheaper. Screen resolution is important also, especially if you will be watching movies on your tablet.

The tablet processor is important to compare as it will control how quickly your tablet runs. The memory size (RAM) will also contribute to speed. Even the best cheap tablet can be slower than a tablet with a good processor.

Lastly, be sure to compare storage size. If you plan to save large files (like videos) then storage size will certainly be important.

Scanning and Organizing Important Paperwork

April 23, 2016 at 7:44 pm

Preserving and organizing important documents is a necessity in today’s world. Whether it be your home business paperwork or your family’s financial documents, having a system in place will make your life easier. While a filing system of some kind is a good start an even better method is some type of electronic storage system. This type of system takes up less physical space and is less vulnerable to loss through water damage or the like (assuming you back up your computer). An electronic system can also make locating a document much easier if you do it correctly.

paper scanning

Getting Started

If you want to implement an electronic filing system then the first thing you will need is a scanner. If you do not have a lot of documents then a flatbed or even portable scanner may suffice. But the best scanner for paper scanning is a document scanner because it is specifically designed to scan quickly and in bulk. Most of the better document scanners also have document management software that can help to organize your scans and even extract important data. Otherwise, you can invest in a separate software program for organizational needs.

If you buy a scanner the best place to start is by reading the manual to see what the scanner is or isn’t capable of. Scanning a document is fairly easy but tweaking certain settings and understanding the software upfront will enable you to get the most out of your scanned documents. I also recommend you do a few test runs with a single document to see what method works best for you.

save to folders

File and Folder Organization

The second step for electronic conversion of paperwork is proper organization. If you were to scan all of your documents to one folder with unidentifiable file names you will have accomplished preservation but missed out on management. You want to be able to find a certain document at any point by utilizing either the scanning software’s or your own filing system.

The benefit of document organization is the ease of locating documents when you need them. If you only have a few documents here or there this may not seem like a big deal but over time an unorganized electronic system will become a burden. Of course, everyone needs to come up with their own logical system which makes sense for them. I may prefer to organize by date while you may be better off organizing by subject. Try considering how you organize physical documents for inspiration.

Keep or Shred Originals

After you have all of your documents scanned and organized you will need to decide how to handle the original paperwork. If you have physical storage space you may want to keep the originals as a backup. But if you are short on space and have a digital backup for your hard drive you could consider disposing of the original copies. When doing so make sure that you shred any docs that contain personal information or financial information that could pose a risk.

When Your Computer is Slow

April 19, 2016 at 12:20 pm

If you own a computer you certainly know that over time it is only natural that your computer does not function as well as when you first purchased it. Every computer becomes slower with time until one day you realize that the speed our your PC has become unacceptable. At that point most people either look for a solution or just buy a new computer.


But before you do the latter, you can learn how to fix and avoid slow computer performance by taking a minute or two to read the information contained below. If implemented, these tips should help in boosting the performance of your PC dramatically and you will hopefully find that the frustration you currently have with your computer will become a distant memory.

By performing regular maintenance on your computer to remove all the unnecessary junk and to reorganize necessary information, you can go a long way to avoid experiencing your computer running slow. Without routine clean-ups it is inevitable that you will experience slow computer performance. Don’t wait for your computer to slow down before acting – set up a schedule for ongoing maintenance to keep your computer in top-notch condition.

Defragmenting Your Hard Drive

Do you know when the last time was that you defragmented the hard drive? This should be done as often as possible to guarantee optimum performance.

Each time you copy or create a file, windows is going to allocate a space for it on the hard disk. New files get written to the next space which is available, but this may not be sufficient due to other files in proximity on the drive. If there is not enough space then the files get split and data is spread out. As more and more files get added it is easy for the hard drive to become completely fragmented thus slowing down response time.

By regularly defragmenting the hard drive all the pieces of your files will be placed back together and the overall performance will be much faster. The majority of computers have disk defragmenters installed as standard programs, you just need to choose when to carry out the task.defrag

You should also consider defragmenting your registry as this can also contribute to slow computer performance. Each time a program is installed, information gets added to the registry. A registry defragmenter is not the same application as a disk defragmenter. You may need to locate a specialized program to download and use.

Removing Background Programs

It can be useful to ensure that no programs run in the background which takes up system resources unnecessarily. To do this go to the “run” application and type out the word “msconfig”. You will then be given a list of currently running programs as well as be informed as to which applications start when the computer is first turned on.

You need to be careful that you do not accidentally terminate essential programs needed for the operating system to work correctly. Only turn off those applications that you are one hundred percent certain that you do not require. It is often the boot time that brings the biggest frustration. In fact, when a computer is slow it is not unusual to be able to go and make a cup of tea and drink it before the PC has completed started up!

Junk Files and Anti-Viral Software

Did you realize that over the months and years our computers can easily get filled with junk information and files which are never accessed or needed? To remove this problem you should do a disk clean up. This can also get rid of duplicate files and irrelevant short cuts. It is often amazing the difference this can make to speed. Also, memory may become available which can be put to other purposes.

It is also very important to back up your data on a regular basis. Should you lose your hard drive from a virus or just a malfunction, it is possible you could lose everything. An external hard drive is a must-have for keeping your data backed up.

Also, do you have an anti-virus program? This can often cause a PC to respond very slowly to commands when the scan is taking place. Alter the settings so that it searches for threats when you are not using the computer rather than when you want to do work. Alternatively, consider another program that might not affect your computer’s speed (check online reviews for more info).

Build Your Own HTPC

April 16, 2016 at 9:52 am

A home theater PC, or HTPC, is a home theater system designed around a computer allowing for streaming of music and videos through your television. In other words, a dedicated computer is connected to your television and interconnected with other devices to give you a centralized and powerful home theater experience.

Generally, an HTPC is something you build yourself and for that reason it is not for everyone. But if you are trying to build an HTPC or have one up and running, there are more and more accessories you can incorporate into your build to make it even better. Things like keyboards, remotes, and wireless mouse among other things.

First, check out this article from LifeHacker.com and this video from YouTube:

How I Built the Media Center of My Dreams

HTPC Alternatives – Video Streaming Devices

If you are considering building an HTPC but feel overwhelmed, these alternatives may work for you: Roku, Google Chromecast or the Amazon Fire. You won’t get a full HTPC experience, but you can stream videos and more to your TV.

Computer Tablets – Apple vs Android

April 13, 2016 at 3:46 pm

There is no doubt that tablets are the hot electronic item of year. Th release of Apple’s iPad in the spring of 2010 exposed a hungry market for these portable devices.

While the iPad still dominates the tablet market, there are many other players who are making a name for themselves and new players seem to jump in every week. The biggest competition to the iPad so far are Android tablets, based of a modified Android operating system that runs many smartphones.

Windows-based tablets are also appearing and gaining market share as tablet enthusiasts realize the advantages of having a tablet that can run all of the software that their laptop does. With all of the tablets on the market and the continual influx of new options, shopping for a tablet can be be a bit overwhelming.

tablet wars

Comparing Tablet Models

When shopping for a tablet there are a lot of features to compare. Here are some of the key things to evaluate.

Operating System

There are 4 main operating systems (OS) at this time. Apple’s iOS, Android, and Windows. Choosing between those four often comes down to compatibility with other devices. If you have an Android-based smartphone then you may prefer to have an Android-based tablet. If you want to use your tablet like a smaller version of your laptop, then you may prefer a Windows tablet.

Within a given operating system, you still need to compare OS versions, primarily with Android tablets. Many of the cheapest Android tablets have older versions of the Android OS. It is likely that an older version will eventually be updated but there is no guarantee on how quickly that will happen. The newest OS versions will obviously have the most bells and whistles.

Screen Size

The majority of tablets come in either a 7 inch size or a 10 inch size, with a few outliers. This can make a big difference depending on how you plan to use the tablet. Movie watchers prefer the larger screens while book readers can get away with smaller sizes. The best 7 inch tablets are more portable than a 10 inch tablet. In general, you will save money by going with a smaller screen but you may feel limited by the viewing size for some applications.

Processor Speed and RAM

Just like any other computer, tablets come with CPUs that vary by manufacturer and speed. The better the processor and the larger the RAM, the faster the tablet. The differences may seem small for simple tasks, but if you plan to watch movies or do more complicated tasks, a little extra speed is important.


All tablets have WiFi capabilities but not all have 3G or 4G connectivity. If you plan to travel with your tablet and won’t have WiFi access, having 3G available could be very important.

Storage Size

Here again, you can save money by going with less but in the end you may regret it. Make sure when choosing a tablet that you will have enough space to store all your music, movies, books and whatever else you have. Also note that some tablet models come with a storage expansion slot (SD card).

App Markets

If you are big on apps then you will probably be happiest with an iPad or Android tablet. They have the biggest market of apps at this time.


Is there a camera? Is a keyboard included? Be sure to check what accessories are included.

Convertible Tablets or Laptops

laptop tablet

Another thing to consider…convertible tablets! A convertible tablet is part tablet, part laptop.

Basically, the screen part of the laptop can be removed and used like a tablet. When you need a keyboard, snap it back together and you are ready to go.

It’s a very neat idea but these convertible units haven’t quite taken a foothold in the market yet. Maybe it’s because the options are still limited. I think the idea has a lot of merit though and could imagine laptops moving this direction since the tablet market has become so popular.

A convertible tablet computer provides the best of both worlds. You can use it just like a regular laptop or netbook or you can detach the tablet part and be more mobile.

Tablets have become a very popular item. But if you need to do more than just surfing the internet or reading emails, the lack of a keyboard and positioning of the tablet can be a disadvantage over a netbook.

The convertible tablet provides the advantages of a small laptop with the advantages of a tablet by giving you a choice in set up. Thus far the convertible tablet market is a bit limited but here we will highlight the best convertible tablets for the year.

Choosing the Best Printer for Your Home

April 11, 2016 at 3:40 pm

Based on the lists of bestselling printers, it seems most people opt for an all-in-one printer, also known as a multifunctional printer. The price to have a printer that is also capable of scanning, copying, and faxing really isn’t that much greater anymore so it makes sense why people would prefer a multifunctional item.

Imagine having an all-in-one device that can print, scan and fax for for less than $200! If you do a lot of work from home or just like to stay organized, having all this functionality at your fingertips is really great.

But every good thing comes at a cost, even if it is monetary, so what you gain in functionality you may lose in print quality or compactness. The good news is that there are many great printers for sale at affordable prices.


Tips on Buying a Printer

When buying a printer there are a few main specs you will want to consider to find the best printer for your needs.

1. Speed – how many pages can the printer produce per minute. If you will be printing in bulk, this is an important feature to evaluate.

2. Resolution – if you will be printing documents for your business, print clarity will be important. Likewise, if you are shopping for a photo printer you will be most concerned with the quality of the images printed.

3. Footprint – printers come in various sizes so you need to consider how much room you have available.

4. Functionality – are you looking for a document printer only or will you be printing a lot of images. Would an all-in-one printer with copying and scanning capabilities be more useful?

5. Ink Type & Costs – if you will be using your printer solely for documents then you can probably lower your costs by finding a black and white printer. Color printers will offer more versatility but will require multiple ink cartridges. The cost of ink cartridges is also something to consider.

6. Output sizes – there are printers that can print larger-size documents and photos, up to 11×17 inch.

Top Brands of Printers

In the world of printers there are a few different players, but there are really 3 to 4 which seem to stand out.

Canon, probably best know for their cameras, also have some of the most popular all-in-one printers. You can expect good photo quality results with Canon printers.

Epson was an early leader creating inkjet printers. They continue to be a dominant player, and like Canon, are known for the image quality of their products.

HP (Hewlett-Packard) was creating electronic and scientific equipment all the way back to the 1940s. Along with Canon and Epson, HP was one of the first producers of the inkjet printer.

Brother actually got their start manufacturing sewing machines, but has branched out considerably. Today they are probably best known for their multifuntional printers.

These 4 companies continue to produce some of the best printers currently for sale.