USB cable for printer: description and connection

Since its invention, the printer has forever changed the work of offices around the world, and after a while it got far beyond their limits, greatly simplifying the life of literally everyone. Today the printer is in many apartments and houses, but for the office it is simply necessary. With its help, schoolchildren and students print their abstracts, and someone prints out photographs. The device is also useful if you have to print electronic documents, and now there can be a lot of them - from receipts for utilities to tickets for transport, theater, football. In a word, the importance of the printer for an ordinary person is not in doubt, but it is necessary to provide the unit with a reliable connection to the computer. Most often this becomes possible thanks to USB cable.

First, it is worth clarifying that the printer need two cablesone of which is networkthat provides a connection to an electrical outlet for powering the device from the mains. Second cord - dedicated USB cable for printer, it is an interface connector for connecting a printer to a computer and transferring media files. In fairness, it should be noted that some modern printers have long acquired the ability wireless connection and can receive files even from pocket gadgets, however, cable connection is still considered the most reliable and practical, especially for transferring a large amount of information.

Printer cable at opposite ends has different connectors. From the side of the computer, this is an ordinary USB of one of the current generations, differing in the speed of information transfer. From the side of the printer, the plug usually looks like a jagged square with four pins inside. It should be noted that not all manufacturers have shown themselves to be supporters of standardization - some think fundamentally differently and deliberately do not provide compatibility with "foreign" cables.

Modern USB cable is often made shieldedto be less influenced by the numerous obstacles created by human civilization. On many cords, you can see the characteristic barrel-shaped bulges closer to the ends, which are called so - ferrite barrels... Such a device helps to suppress interference at high frequencies, and although the keg cannot be considered a mandatory part of the USB cable, it does not hurt to have one.

Today's USB cables are required Plug-and-play recognized by modern operating systems... This means that the computer does not have to specifically "explain" what you connected to it - the OS must not only understand itself, then a printer is connected to the opposite end of the cord, but also independently determine its model and even load it from the network and install drivers for it ...

You can understand which cable is in front of you by the markings applied to it - especially if you first delve into its subtleties. The most important indicator is AWG markingfollowed by a two-digit number. The fact is that lengthening the cable while maintaining its thickness can significantly deteriorate the quality of data transmission. For a stable and high-quality connection, the consumer should make sure that the purchased cord is not longer than it should be according to the marking applied to it.

Standard 28 AWG means that the maximum cable length should be a modest 81 cm. 26 AWG (131 cm) and 24 AWG (208 cm) are the most common markings that fully meet the needs of both the home and most offices. 22 AWG (333 cm) and 20 AWG (5 meters) are in much less demand, but buying them is still not a problem. Theoretically, a USB cable can be even longer, for example, up to 10 m, but the demand for such specimens is extremely low, including due to the drop in the quality of information transfer due to lengthening, therefore it is not easy to find such a specimen on a shelf in a store.

Cables are also often labeled with the phrase HIGH-SPEED 2.0 or 3.0. Let's be objective: neither the second, let alone the first has long been an example of high speed, but this is how the first words are translated. In fact, modern copies already contain marking purely in the form of 2.0 or 3.0 - these numbers mean the generation of the USB standard. This indicator also directly affects the speed of information transfer: in 2.0 it is up to 380 Mbps, and in 3.0 - up to 5 Gbps. Nowadays, even the 2.0 standard in the case of printers has not lost its relevance, because in fact the declared speed is enough to transfer photos faster than the printer can print them.

Shield Marking indicates that the manufacturer additionally protected the cord from unnecessary interference not only with ferrite barrels, but also with shielding. Outside, you will not see it - it is hidden inside and looks like a layer of foil on top of the veins or mesh.

Choose a USB cable for your printer responsibly and wisely. Negligence in choosing such a seemingly simple accessory is fraught with a number of problems, including:

• the inability of the computer to recognize the printer in the connected device;
• unreasonably low connection speed, which does not allow to work normally or just squeeze the most out of a good printer;
• problems with starting printing to the point that the printer completely refuses to work;
• sudden interruption of the connection at any time, leading to damage to paper and ink without an acceptable result.

The first requirement when choosing a cable is make sure it is fully compatible with the printer. Most modern equipment manufacturers have long understood that standardization, from the point of view of the consumer, is an absolute good, but the most eminent companies still install a special connector. Theoretically, the instructions for the printer should contain what kind of cable it connects to the computer, especially if the cable is not included in the package initially. If you had a cable and the unit worked before, just take the old cable with you to the store and make sure that the plugs on the printer side match.

Many consumers, having learned that USB cables come in different standards, tend to buy exactly 3.0, despising the old 2.0. This is not always justified, because with good performance, even a 2.0 standard cord will give the information transfer rate normal for an ordinary home printer. If you have an inexpensive multifunctional device with the ability to print in huge formats, the need for USB 3.0 may simply not be there. Again, when buying a more modern cable, you need to make sure that your old technology itself supports USB 3.0 at all nodes - in particular, at the computer and printer connectors.

The same Laptops are often equipped with several USB ports, of which only one conforms to the 3.0 standard. A conscientious user most often takes it with a USB flash drive, which means that when the drive is inserted, the "fancy" cable is already nowhere to connect.At the same time, the cord and connector of different generations will still work with each other, but only at the speed of the older generation.

Choosing the length of the cable, in no case do not lay a large stock "just in case." As the cord lengthens, the information transfer rate inevitably drops, and noticeably, so you probably won't see the title speeds declared in the markings. However, choosing a cable even 2.0 with a length of no more than 3 meters for use on a regular home printer, you should not notice much difference. Of course, the cord should not be stretched like a string, but you will most likely regret the inappropriate amount of length.

Living in a large city among a large number of radiation sources or near specific enterprises, Pay special attention to the noise-free USB cable. The ferrite barrel discussed above is not an obligatory part for such a cord, but in urban conditions it, to put it mildly, will not interfere, and even ensure the stable operation of the cable. Moreover, many manufacturers equip their products with kegs at both ends, which is also a wise decision. Additional shielding it is not always urgently necessary, but its presence already definitely guarantees that there will be no connection problems.

The last selection criterion is price... There are no recognized brands in the production of USB cords that would inflate the price tag purely because of their good reputation, but not all cables cost the same - at least they are brought from different factories, so the shipping costs differ. Always pay attention to the price in the last place - it makes sense to choose a cheaper cable only when you have two absolutely identical copies in front of you, differing only in cost.

It so happens that when you connect a new cable printer is not detected - the computer regards it as some unknown device or does not see it in principle. If your equipment is all relatively new and has a relatively fresh operating system on it (at least at the level of Windows 7), then the most likely reason for such a reaction is too much long USB cable. In a cable that is too long, the signal tends to gradually weaken, and if you overdid it with a margin, it may be that the computer seems to have an endless cord or one that has nothing attached at the far end.

If possible test another cable, then it is this step that should be performed in the first place, and it is the replacement with a more adequate cord that is likely to provide the desired result. If the printer is definitely working, and there can be no complaints about the cable, then the Plug-and-play principle did not work for you - this is especially likely if you have a very old printer or the operating system on your computer. This means that the system could not find the driver for the printer on its own, and it will have to be installed in the "old-fashioned" way - manually.

To start turn on both devices are the computer and the printer itself. Connect them with a cable and wait for any notification that recognition did not occur. The absence of any message from the system with a peripheral device not appearing in it may also indicate just such an outcome. After that, go to driver installation.

The manufacturer must also provide a disk in the delivery set, on which this driver is written. Some models are supplied with several disks at once - then you need the one on which driver is written. Yet again, modern systems are required to recognize the drive and run the installer automatically, but if this does not happen, you should open "My Computer" and try to open the media with a double click.Driver installation is carried out by a special program, which is called so - installation wizard... This software will do everything for you and tell you how to behave - you may have to disconnect the printer from the computer for a short time or even unplug the plug.

In the following video, you will learn how to properly set up and connect your printer.