2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-15 04:10
When the printer prints black sheets, the user often has to look for the cause of the breakdown on his own. The source of problems can be both the wrong choice of consumables and technical malfunctions. Step-by-step diagnostics will help you understand why a solid black background appears on the entire page and what to do with it.
Causes
Cases when the printer prints black sheets instead of a normal print are not so common, but not a single owner of an MFP, inkjet or laser technology is immune from them. In most cases, the breakdown is of a hardware nature, and its elimination involves a visit to a service center or replacement of parts.
The malfunction occurs in both color and black-and-white devices.
If the printing equipment spreads the background to the entire sheet in a solid color, the cause is most likely one of the following factors
Light is striking the drum unit . If the printer has recently been repaired, there may have been a serious error in removing this item. Also, the drum unit fails if it is handled carelessly when replacing the cartridge or operating the office equipment itself. Any contact with direct artificial or natural light can damage the delicate coating. If the printer produces a completely black page, the first thing to check is the drum unit.
Lost contact in the control panel . It is located in the device case, has its own processor, ROM and memory block. If the printer periodically begins to make printing errors, it makes sense to check this item. In addition, there is a contact element on the cartridge itself, which can also oxidize.
There is no charge roller in the cartridge . A part with similar functionality is also called coroton in some laser printers. If, after replacing ink or repairing, the device stops printing normally, it is worth checking whether all the elements have been installed in their places.
The high voltage unit is defective . If, when moving the cartridge to another similar device, it works normally, the problem is most likely in it. For accurate diagnostics, you will have to contact the service center.
The print head is dirty . This malfunction occurs in inkjet printers.
The cartridge is damaged, not sealed . Usually in this case we are always talking about normal printing of the first prints. Then the toner or ink passes through the previously sealed shell, dispensing is disrupted. Smudges or solid black sheets appear instead of normal prints.
The wrong paper is selected . If the image comes out normal on sheets from one pack, and an exceptionally black background appears on others, it is worth checking their purpose. If, instead of special paper, the printer receives the one intended for the fax, you will not be able to wait for a normal print.
These are the main reasons why it may be difficult for a solid black background to appear on sheets of paper when using a printer.
Solution
It is possible to understand what to do if, instead of a color print, the printing device produces only a black background, if the problem is correctly diagnosed. For example, if you choose the wrong paper, it will not be difficult to fix the problem . The fact is that a completely black sheet occurs when the surface of the fax paper is thermally exposed. It is enough to replace the wrong packaging with the one intended for printers, and the problem disappears completely.
Bad contact in any of the printer units is quite fixable . If other stages of diagnosing problems have not identified, it is worth focusing on this particular malfunction. The first step is to pay attention to the correct position of the spring-loaded contact. If it is in the correct position when turning 30-40 degrees, there was most likely a mechanical property problem. In the absence of visible distortions, you will have to clean the contacts inside, already with the removal of the case cover - if there is a guarantee, you should contact the service center for this.
When the reason for printing black sheets is the drum - the main receiving element when receiving data from a computer, there are 2 scenarios . The first allows you to count on the natural restoration of the functions of this part over time. In case of "flashes" this happens, but not all owners of equipment have time to wait. The second involves replacing a defective element - it is expensive, but comparable to the cost of repair.
Poor quality ink cartridges are another source of printing problems . The appearance of a black background especially often occurs when replacing original components of HP, Canon printers with cheap counterparts. The bad news is that a leaking cartridge or spilled toner can end up on parts inside the case.
In this case, it will be necessary not only to change consumables, but also to carry out additional service maintenance of the equipment.
The lack of a charge roller is a fairly common problem after visiting a service center . If your printer has recently been sent for routine maintenance, it is worth checking to see if there are any extra parts left in the shop. Particularly carefully check the quality of the print during the visit of a private specialist working on site to the customer. After installing the charge coroton in place, all problems with the output of black sheets will disappear.
When an inkjet printer prints in black, the problem is to look for in the print head. It should be rinsed in a hydroacoustic bath. If the problem occurs frequently, replace the ink.
Recommendations
Sometimes printing black sheets all over the place only means that the printer is too worn out and needs to be disposed of. This happens even with the most reliable equipment, and on cheap models it happens even for a year after purchase. There can be only one advice here: do not save on the purchase of high-quality equipment, change it on time . This is connected not only with the resource. Improvements are also taking place in printing technology, which allows for faster and better prints.
The simplest diagnostics is carried out without visiting a service center . For example, in the office it is quite easy to check whether the problem is in the cartridge or in the hardware. It is enough to move the cassette to another device and perform a test print. If it is normal, without a black background, the technology itself is the source of the problem.
Laser printers are most vulnerable to this type of malfunction . It is in them that the charge roller and drum are used. If there is no contact, you need to check the platform on the side, on the left side. It is here that the spring-loaded elements are located, and most often during installation, the upper one does not snap normally. You can install the part in the desired position with your hands or with a screwdriver.
You can print a test page without connecting to a PC. It is enough to raise and lower the cover 5 times. The resulting sheet should be “striped”, but without a solid black background.
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