<p><strong>Printers and printing consumables</strong></p>
<p>Users of printers at home often print about 100 sheets per week, while in the field of small business it reaches several hundred printed sheets per week, and in the field of large businesses often print thousands or hundreds of thousands of sheets per week, and thus we now reach modern printing on papers It prints more than 45 trillion sheets of paper annually.</p>
<p>Each of these categories needs a special type of printer that meets its printing needs efficiently and at the lowest possible cost. The printers differ from each other in several respects, including the technology used for printing, printing color, printer size, speed, printing quality and others, and among these characteristics :</p>
<p style="direction: ltr;"><strong>First, the technology used in printing</strong></p>
<ul>
<li>Dot-matrix Printers</li>
<li>Inkjet Printer</li>
<li>Laser Printer</li>
<li>Thermal Printer</li>
</ul>
<p><strong>Second: print color</strong></p>
<ul>
<li>Colored (the main colors used in printers are red, blue, yellow and black).</li>
<li>only black</li>
</ul>
<p><strong>Third: Printing Resolution</strong></p>
<p>Modern printers print on paper by means of small dots of liquid ink or ink granules, and the number of these dots per inch (abbreviated “DPI”) is called the printing accuracy, and the greater the number of these dots per inch, the higher the print quality.</p>
<p><strong>Fourth: printing speed</strong></p>
<p>Print speed is measured as the number of pages that can be printed per minute (ppm).</p>
<p> </p>
<p><strong>Inks and paper and their types:</strong></p>
<p>Printer consumables are the most important in terms of cost and determination of print quality. The word consumables are always used, meaning inks and papers, but there are other consumables that must be taken into consideration to know the cost of printing, whether at home or in the office.</p>
<p>Here are the most popular and widely used types of printing paper:</p>
<p><strong>concord printing paper</strong></p>
<p>It is one of the most luxurious and expensive types of printing paper, and it is more luxurious and more expensive than crystal. It can be used instead of crystal paper to print letters and personal cards.</p>
<p><strong>Bristol Cochet Printing Paper</strong></p>
<p>This type is one of the best types of printing papers for its durability and elegance, and therefore it is often used in covers, especially medical report covers and product packaging.</p>
<p><strong>photographic papers</strong></p>
<p>It is a type of printing paper intended for printing photographs and the like and rarely has other uses in printing.</p>
<p><strong>opaline printing paper</strong></p>
<p>Opaline paper is a type of printing paper similar to kochia paper, except that it is softer, smoother, and whiter, and therefore more expensive than kochia. Therefore, it is usually used in printing personal cards.</p>
<p><strong>Most popular paper sizes:</strong></p>
<ul>
<li>A4 size is the most popular and widely used, size is 210 x 297 millimeters, and its resolution is 300 pixels/inch.</li>
<li>A3 size is second to A4 in terms of widespread use and its size is 297 x 420 mm, and it has the same resolution as A4 paper.</li>
<li>The rest of the sizes are from A0 to A10, where the largest is A0 and its size is 1682 x 2378 mm, and the smallest is A10 and its size is 26 x 37 mm.</li>
<li>Other sizes such as Type B sizes B0 to B10 are used for labels and charts.</li>
<li>The smallest size is B10, which measures 31 x 44 mm, and the largest, B0, which measures 1000 x 1414 mm.</li>
<li>Type C sizes from C0 to C10 are for envelopes and stationery.</li>
<li>The largest size is C0 which measures 917 x 1297mm, and the smallest size is C10 which measures 28 x 40mm.</li>
<li>Posters usually have a size of 50 x 70 cm and a resolution of 200-300 pixels/inch, and the size of personal cards is 9 x 5.5 cm and a resolution of 300 pixels/inch.</li>
</ul>
<p> </p>
<p>As for ink, it is a substance whose type varies according to the different type of printing that is placed inside printers to print texts and images on paper.</p>
<p><strong>The most commonly used types of inks:</strong></p>
<p><strong>Powder or laser ink</strong></p>
<p>It is a soft, heat-melting powder for laser printers, and it is placed in the printer inside a box called a cartridge, and laser printers are distinguished by their ability to save ink compared to other printers.</p>
<p><strong>liquid ink</strong></p>
<p>They are liquid ink cartridges, whether they contain one color such as black, blue, red, or yellow, or they are a package containing several colors. These inks are used mostly in home printers or printers dedicated to printing photos and are usually known as inkjet printers.</p>
<p><strong>Cellulose</strong> <strong>inks</strong></p>
<p>Thermal ink is abrasion-resistant for use in flexographic printers. It is distinguished by its strong glossy colors, wear and heat resistance, is not affected by light, and dries in minutes using the printer heater.</p>