Laser printing defects due to various reasons

The printer is a very popular electrical product. It is used both in office companies and at home. This device can greatly facilitate the process of work or study, because the printer eliminates the need to write texts or draw drawings by hand.

In order to obtain high-quality images or text, it is necessary to maintain the operability of the printing device.

However, even with proper care, various defects sometimes appear during printing. There may be several reasons for their appearance.

Printing Defects Due to Toner Deficiency

The printer cartridge is not able to work forever. From time to time they require refueling or replacement. However, not every owner of the printing device is able to determine when the toner is low and the cartridge needs to be refilled.

Modern devices have a special chip that responds to changes in the amount of toner and notifies that refueling is required. But he does this much in advance, so it is advisable to focus on other defects that occur when there is a lack of dye. These include:

• Uneven and poor distribution of the coloring matter on a sheet of paper. The resulting image produces bright spots, and the image itself may be fuzzy;
• The formation of spots on the sheets. When a pigment finishes, it can clump. They lead to the formation of various spots on the pages;
• Print Device Warnings. Modern models of the device have a liquid crystal display, which displays information about the amount of toner. If the pigment ends, the display will blink and an appropriate error message will be displayed. However, some devices may block the printer;

When stains are formed on sheets of paper, it is strictly forbidden to remove and shake the cartridge of the printing device!

Defects due to wear on spare parts

To obtain an image or test, not only the cartridge is used. Also, the printing device has: a drum, a magnetic shaft, a metering blade and a doctor blade. If one of them fails with laser printers, this will immediately affect the print result.

Defects may be as follows:

• If the photocell is damaged, stripes and dots appear on the page. The distance between them is equal to the step of the photo cylinder. If a rounded strip appears on the shaft, then a solid line will appear on the page. A very thin straight line indicates that there are scratches on the shaft;
• The appearance of light areas is caused by the wear of the photocell or the fact that light hits it;
• If you print a blank sheet, then the power is not supplied to the cylinder;
• The gray background of the paper sheet indicates a worn blade;
• If the squeegee does not work correctly, a gray strip with very blurry edges will appear on the paper;
• The appearance of a background or very dark spots on a sheet of paper indicates that the magnetic shaft has worn out or received mechanical damage;
• Black and white transverse stripes mean the curvature of the magnetic shaft;

Defects from getting a foreign object onto the drum unit

Even with the most careful use of the printer, various foreign bodies sometimes get into it. Most often, these are paper clips or accumulated dust.

The ingestion of a foreign body leads to the appearance of so-called artifacts. As a rule, they are light and have a certain frequency of arrangement. If the distance between them is 8 cm, then something extraneous fell on the drum. If the distance is about 3 cm, the foreign body has fallen on the magnetic shaft or primary charge shaft.

If staples get into the printing device, serious damage and printing defects can result!

Since often a foreign object entering the printer leads to the replacement of the drum or magnetic shaft, it is very important to ensure that no foreign bodies enter the device.

Torn Thermal Film Defects

All printing devices use thermal film. Over time, it can begin to wear out, and in rare cases, get damaged. If damaged, the following defects occur:

• Various dots or dirt appear on sheets of paper;
• When feeding paper, they may start to jam;
• The text or image is fuzzy or blurry;
• A crunch is heard during printing;

If the thermal film is damaged, an urgent replacement is necessary. If this is not done, then the drum unit may fail!

Even the most expensive and high-quality printer can fail. Despite the fact that the cartridge is the most common cause of malfunction, it is very important to know about other possible causes of failure. This will allow you to eliminate them in time and avoid serious repairs or buying a new product.