Laser printer smudges paper when printing

Laser printer smudges paper when printing

Different brands of printing devices are composed of similar structural parts. When a laser printer smudges paper around the edges or in other places, you need to perform diagnostics, which boils down to a number of actions:

  • Sometimes, after refilling a cartridge, the printer stains the paper. in such a situation, you need to try to replace it. If the malfunction is eliminated, the problem is in it.
  • If horizontal streaks appear in the printer, toner scatters due to wear on the squeegee blade or foreign matter between the drum and the waste powder hopper. Often the bunker is overflowing.
  • If your Brother printer smudges the paper evenly, it is the optics or the charge roller that is to blame. This is a common problem caused by using poor toner.
  • When information is duplicated on the sheet, the charge on the drum surface is not restored. Replacement of the shaft or restoration of the galvanic contact is required.
  • If stains occur at the same distance, the problem is uneven wear on the drum unit, which requires replacement or restoration.

Ink cartridge problems

If the device smears during printing and at the same time stripes appear on the surface of the paper, then the problem of this situation is spilled toner. A possible cause is a worn out squeegee blade (cleaning blade) between the waste toner box and the drum. It is also possible that some foreign object got into this gap or the bunker was simply overfilled with mining. Thus, if the laser printer prints dirty precisely because of the listed reasons, then first of all pull out and disassemble its cartridge, and then replace its doctor blade. Next, you just need to pour out all the spent dye, thoroughly clean the reservoir and refill the laser cartridge.

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If a smudging and smearing printer leaves a rather dirty tone on the surface of the paper, then the problem is probably the dirty optics or the charging roller. provided that the printer contains good quality toner. If the coloring matter is of questionable quality, then it is advisable to completely clean the printer cartridge from the old toner and replace it with a new one, of higher quality and more expensive.

If, as before, the laser printer stains the paper and various kinds of stains appear on the printout, which are repeated at approximately the same intervals, then the reason may lie in an unevenly worn photo. In this case, you can try to restore it using a special technology, but the easiest and easiest way is to replace this component of the printing device.

If the image began to duplicate on the printed sheet, then the answer to the question of why the printer smears is in the charging roller, which does not restore the charge on the surface of the photo roller. Another reason is the presence of poor electrical contact with the charging shaft, which may be completely worn out. The problem can be solved by completely replacing the shaft or restoring contact.

Fine vertical and poorly printed lines are caused by build-up of dye on the edge of the metering blade. In this case, you should carefully clean the edge of the stuck toner or simply replace this blade. An article about the main defects in the printing of laser cartridges will help determine the problem of your cartridge.

How to clean your device?

The sequence of its implementation includes the following actions:

  • Unplug the power cord before cleaning;
  • Prepare a cleaning agent for such devices in advance. On sale there are branded formulations recommended by specific manufacturers;
  • You cannot moisten the device itself. instead, spray the cleaning composition onto a cloth or napkin;
  • Open the lid;
  • If all internal surfaces are stained with ink, you need to wipe them with a damp cloth;
  • If the coloring matter is a powder, then you can remove its remnants only by blowing them out. This can be done with a vacuum cleaner. To maintain health, it is recommended to wear a respirator;
  • Be sure to clean the rollers (for an inkjet printer). The paint comes off them well under the influence of alcohol. Most often, it is in them that the root of the problem lies. being contaminated, they “chew” the sheets and stain them with numerous spots.

Why does the printer smear when printing?

Information sent to print may be stained with ink beyond recognition. It can be uniform horizontal stripes, spots, blots and other bizarre geometric shapes.

The whole set of reasons for this situation can be divided into 4 categories:

  • Wear of machine parts. Even the most famous brands such as “Kyocera“And”Brother“Sooner or later become unusable. Deterioration in print quality is one of the first symptoms;
  • Incorrect operation. The fault may lie with the user if he took the liberty of changing the factory settings in order to “customize” the device in this way. For example, an erroneous setting of the temperature on the fusing unit leads to smearing of toner along the edge of the sheet;
  • Manufacturing defects. If the printer does not cope with the task assigned to it from the first days after purchase, you must return it to the seller under warranty;
  • Poor quality consumables. Wet, glossy, or electrified paper can smear toner. It is advisable to buy ink only of the same brand as the device itself.

Laser printer smears when printing: what to do?

Malfunction can be found not only on cheap matrix and inkjet models. Expensive laser devices are also susceptible to defects.

Among the most common reasons for this situation:

  • Poor toner. As an experiment, you need to replace it. If the action had an effect and the printing returned to normal, then it was in the inkwell;
  • The possibility of a foreign object entering the inside of the apparatus cannot be ruled out;
  • The doctor blade is worn out (designed to cut off excess paint);
  • The waste toner bottle is full;
  • Uniform stripes along the entire length of the sheet indicate a malfunction with the charging shaft (transfers a negative charge to the surface of the rotating drum);
  • On Brother-branded devices, soiling of documents is the first bell heralds a breakdown of the optical system. A focusing device or collimating element can be affected;
  • If the output is paper covered with repeating “patterns”, it is necessary to repair the galvanic contact;
  • Stains indicate wear on the photosensitive drum.

Laser printer stains the sheets

Even strict adherence to the user’s manual is not a guarantee of uninterrupted operation of the equipment. And now, after several years of stable service, documents are printed in spots and stripes. There is nothing left except to come to the service center with the question: “Why does the printer smear the sheets when printing?” Professionals will have to consider several options.

How much does it cost to repair a printer in a service?

High-quality repair of expensive office equipment is provided only by specialized services. Before crossing the threshold of these organizations, you need to familiarize yourself with the approximate price list of the services they provide.

  • Cleaning. 1400 rubles;
  • Replacing the drum unit. 350 rubles;
  • Carriage repair. 1000 rubles;
  • Removing foreign objects inside the device. 850 rubles;
  • Preventive maintenance. 1000 rubles;
  • Optical system repair. 1500 rubles;
  • Replacement of squeegee knives. 450 rubles;
  • Replacing the drum unit. 600 rubles.

When you first visit the service, you need to show the specialists a sample of the soiled paper. This can tell workers the cause of the problem and save valuable time, especially if the machine is used continuously.

Repairing high-tech devices is akin to treating a person: it is impossible to start repairing without a detailed study of the causes of problems. So, there are many reasons why the printer smears the sheets when printing: low-quality paper, breakage, marriage, etc.

In this video, the master Stanislav Chelobitnev will tell you how to eliminate printing defects on an HP laser printer:

When an inkjet or laser printer smudges the sheets during printing, it is better to immediately contact a specialist who will determine the cause and fix the malfunction. At the same time, when an inkjet printer stains the paper, the reasons may be one, and in the case of laser equipment, completely different.

Wrong paper

If the printer does not always stain the paper, you can try straightening the sheets. This will prevent the paper from touching the head and a nuisance that causes the printer to smear the sheet around the edges.

Why does the printer smear when printing?

Information sent to print may be stained with ink beyond recognition. It can be uniform horizontal stripes, spots, blots and other bizarre geometric shapes.

The whole set of reasons for this situation can be divided into 4 categories:

  • Wear of machine parts. Even the most famous brands such as “Kyocera“And”Brother“Sooner or later become unusable. Deterioration in print quality is one of the first symptoms;
  • Incorrect operation. The fault may lie with the user if he took the liberty of changing the factory settings in order to “customize” the device in this way. For example, an erroneous setting of the temperature on the fusing unit leads to smearing of toner along the edge of the sheet;
  • Manufacturing defects. If the printer does not cope with the task assigned to it from the first days after purchase, you must return it to the seller under warranty;
  • Poor quality consumables. Wet, glossy, or electrified paper can smear toner. It is advisable to buy ink only of the same brand as the device itself.
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Dirty rollers

It happens that the inkjet device begins to stain the sheets with vertical stripes. This could be a problem with the pick-up rollers. Sometimes they need to be cleaned of paint. You can do this yourself by applying a small amount of dishwashing liquid to the underside of the sheet. Next, you need to put the paper in the receiver and turn on printing, while not releasing it to the end until a notification appears that there is no paper. You need to duplicate the action several times and your videos will clean up perfectly.

Inkjet printers

To the greatest extent, the reasons for which the printer smudges paper during printing include:

  • the use of the wrong paper, which is not able to absorb all the ink that falls on it from the nozzles (nozzles);
  • improper storage of paper, and as a result, its curvature;
  • dirty sheet feeding roller.

Printing device malfunctions

Laser printer smudges the paper, what should I do? A dirty sheet may indicate a problem with the printing device. We will tell you how to check it with a “stop test”. What does he mean?

You need to start the printer to print, open its cover or turn it off when the sheet is under the drum unit, but has not yet entered the fusing unit. So, we can separate the breakdown of the stove. Considering that there is no dirt on the paper, we can understand that it got dirty in the fusing point.

You also need to monitor the Teflon roller or thermal film (in some HP and Canon models, thermal film is used instead of the Teflon roller). When there are surface defects or a build-up of burnt toner, this will be the root of the problem. Also, the reason sometimes lurks in the incomplete heating of the negotiated parts. It is necessary to check the pressure of the temperature sensor and its appearance; there is a possibility that toner deposits will form, which must be cleaned off. It happens that the reason for the contamination of the sheet comes from the peeling of the shell of the rubber roller. Independently, according to external data, it is difficult to determine this damage and you will have to disassemble the fastening unit, and then diagnose the shaft.

Also, the source can be hidden in the incorrectly selected paper parameters. In the case where the paper is thick and the setting is for thin, it is easy to get underheating of the fusing unit. This results in an incompletely caked toner and dirt. Sometimes, the problem lies in the “brains” of the device, but this is the “height” at which it is almost impossible to repair it yourself, in the absence of special skills and tools.

Remedies

Here we have listed common complications with inkjet printers such as HP, Epson, Canon.

Laser printers

Many users of this office equipment are faced with a problem: grease the printing device or MFP. Why does the printer get dirty on the paper and what to do?

Our recommendations apply to almost any model and manufacturer. Canon, Samsung, HP, Xerox, Epson. All of them differ in performance volumes, dimensions, shape, and even noise level. But the basis of the laser printing system is formed by common principles and fundamental constituent elements.

Due to this, diagnosing and preventing printer problems is reduced to several points.

  • cartridge problem;
  • malfunctions of the printing device;
  • incorrectly set paper parameters;
  • lack of preventive maintenance.

Possible reasons

Printer owners can get in trouble when information printed on paper is stained with ink to an unrecognizable appearance.

In some cases, the same horizontal stripes, spots or blots of different sizes appear on the paper.

An inkjet printer smudges the sheets when printing, smudges the paper around the edges, or duplicates the image for certain reasons.

  • Deterioration of parts. Even the devices of the most famous brands can become unusable after a while. The first symptom of worn out printer elements is that the technique does not print the text clearly, the image is blurry.
  • Improper use. In this case, it is most likely the fault of the user who changed the factory settings. As a result of such arbitrariness, the temperature on the fusing unit may be incorrectly set, so the ink is smeared.
  • Marriage. If the user becomes the owner of a defective unit, then the device does not function well from the first start. In this case, it is recommended to contact the dealer and return the printer under warranty.
  • Poor quality consumable. The image may be smeared on wet glossy or electrified paper. Experts recommend using ink with the same brand as the technique itself.
  • Using wrinkled paper. Sheets get dirty because they cling to the print head.
  • Loss of cartridge tightness. This situation can be caused by rearrangement or transportation of equipment.

Causes of laser printer problems:

  • low quality toner, you can try to replace the element if the technician smears and stains the paper;
  • ingress of a foreign object into the interior of the device;
  • worn out squeegee knife;
  • overfilling the waste toner container;
  • malfunction of the charging roller;
  • breakdown of the optical system;
  • deformation of galvanic contacts;
  • deterioration of the photosensitive drum.

Trouble-shooting

Before proceeding to troubleshoot a printer breakdown, it is worth diagnosing the problem:

  • the device smears in the form of transverse segments. toner scatters, the blade is broken or the compartment with waste material is full;
  • contamination of the printed sheet is concentrated throughout its entire area. the use of consumables of poor quality;
  • Evenly spaced stains. uneven drum wear;
  • duplication of text during printing. the charge shaft does not have time to adequately process the entire drum area.

Owners of printing equipment often wonder what to do if a laser or inkjet printer does not print quality, leaving streaks or traces of ink. Inexperienced users can try to troubleshoot the problem by following these one-by-one steps:

  • prepare about 10 sheets of office paper, which does not have to be clean;
  • using a graphical editor, create a new document that does not have any text;
  • load paper into the printer;
  • print a blank document in a copy of about 30 pieces.

Usually, such a run helps the head no longer smear the paper.

Recently produced models have special indicators that flash to alert you of a specific problem. Using the instructions, you can find out the cause of the breakdown and eliminate it. Not only inkjet and dot matrix printers can print with defects, but also laser.

You can try to fix them by cleaning the printer, which is carried out in the following sequence:

  • de-energizing equipment;
  • preparation of a special cleaning agent recommended by the printer manufacturer;
  • spraying the composition onto a napkin or piece of cloth;
  • opening the lid;
  • cleaning with a napkin each of the ink-stained part.

Since the reason for poor-quality printing is often hidden in incorrect settings, the toner can excessively consume ink and thereby smear the sheets. Therefore, experts recommend not to violate the factory settings or seek help from professionals.

It is almost impossible to fix the problem in which the printer does not connect to the mains, only a wizard can help.

Why does the printer get dirty when printing and what to do about it?

A printer, like any other type of equipment, requires proper use and respect. In some cases, the unit may fail, while printing is dirty, adding streaks and stains to the sheets of paper. Such documents look unattractive and are sent to a draft version.

A printer is a necessary type of equipment used by almost every computer owner or office worker. In order for the equipment to serve as long as possible and not spoil the printed information, it is worth taking some preventive measures, as well as using the device correctly and accurately. In the absence of experience, it is better to take the smearing printer to a workshop for repair. Experts strongly recommend that printer owners do not start repairing equipment on their own in such cases:

  • Replacing the drum unit
  • replacement of the charging shaft;
  • changing the cleaning blade;
  • complete internal cleaning of the device from dirt.

If disassembling the printer with your own hands before visiting the workshop is inevitable, you should definitely cover the drum unit from light exposure with thick dark paper.

Before you start disassembling the unit, it is worth de-energizing it, and you can start work only after it has completely cooled down.

Cleaning of equipment from the inside is possible with a brush or vacuum cleaner. To prevent the printer from staining the paper with ink, the user should remember the following rules:

  • set the correct settings on the equipment or leave the factory settings;
  • not to violate the operating rules specified by the manufacturer;
  • carry out preventive maintenance measures on time and on a regular basis;
  • be careful when changing the cartridge;
  • use only high-quality cleaning products and consumables.

For information on why the printer smudges the sheets when printing, see the following video.

Why black sheets appear when printing?

There may be several reasons why the printer produces black sheets when printing:

  • Image drum flare.
  • Contact part malfunction.
  • The high-voltage unit is out of order.
  • Poor quality cartridge.

Why does the printer blacken and stain the paper??

I think that every user at least once in his life wondered why the printer blackens and stains the paper, and what to do to fix it? There are many reasons for such a malfunction, and the solution for each can be both obvious and quite difficult.

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The easiest way to solve any printer or MFP malfunction is to contact our Prion service center. Our experts will identify and eliminate any malfunction as soon as possible.

Contact part malfunction

Malfunction of the contact part of the cartridge can also cause the problem of black sheets when printing. With some printer models, the spring-loaded contact may get stuck. This contact can simply be turned out due to improper operation. As an example, the cause of a malfunction could be the fact that the cartridge was often and unnecessarily pulled out of the printing device.

Poor cartridge

Some models of compatible cartridges are poorly assembled. As a result, some of the toner scatters, soiling and sheets during printing. Typically, after a while, the printer starts printing normally. If, after 10-20 print sheets, black sheets continue to come out, then the cartridge should be replaced.

Image drum flare

OPC drum light is the most common reason why the printer prints black sheets. The imaging drum is sensitive to light, so all work related to the removal of this part is carried out in a dark room. A bright light accidentally hitting the drum unit can damage it, and this, in turn, can cause black sheets to appear during printing.

The high-voltage unit of the printer is out of order

Quite often, the high-voltage unit of the printer fails, as a result of which black sheets appear when printing. It is not difficult to diagnose this printer breakdown. If possible, try inserting the cartridge into another printer of the same model. If this printer does not produce black sheets when printing, then the problem is in the device itself, and not the cartridge.

Reasons why the laser printer blackens and smudges the paper:

When a cartridge runs out of toner, it usually refills. If the cartridge is refilled incorrectly, or carried out in artisanal conditions, a similar effect may appear.

An unqualified refueller can make such mistakes:

  • Break the seal;
  • Poorly clean (not clean) the waste toner box;
  • Leave the metering blade dirty;
  • Mechanically damage the metering blade;
  • Mix different toner powders;

To check for such a problem, you need to replace the cartridge with a new cartridge and make a test print. If the print with the new cartridge is free from defects, then your old cartridge is out of order. If nothing has changed and the printer blackens and stains the paper, then you need to look for what the problem is next.

If you replaced the cartridge with a new one, and the printer still blackens and smudges the paper further, this means only one thing, that the reason is in the printer itself. To confirm this, you need to make a stop test.

To conduct a test, you need to open the lid of the device and start up the sheet for printing. Then stop the machine at a time when the sheet has passed the drum, but has not yet hit the fixing unit. If the paper remains clean, there is a problem with the fusing unit.

It is also necessary to view the state of the thermal film. There should be no flaws on its surface, as well as burnt toner. The problem may also be in poor heating of the Teflon shaft.

In fact, there are much more malfunctions that cause the printer to blacken and stain the paper, but they all require the attention of a service specialist. Prion service center specialists are always at your service!

So that the laser printer does not ink and stain the paper, it is necessary to handle it with care, follow the rules of its operation, set the settings correctly, refill the cartridge only with specialists, and most importantly, carry out preventive maintenance of the printer on time.

Printer smudges paper when printing

A printer, like any other office equipment, is a rather complex device and requires careful handling. Among the problems faced by printer owners, one of the most common is a malfunction in which the device begins to print dirty, smudging the paper with stripes and dots of different sizes. Such a seal looks unsightly, and is only suitable for draft use. Why does the printer get dirty on the paper and what to do if this happens?

Printer problems

If none of the above helped to restore the normal operation of the device, then the problem probably lies in it. In order to verify that the problem is with the printer, experienced users use the so-called “stop test”. There are two ways to organize such a test:

  • Start printing by opening the covers
  • Disconnect the device from the power supply when the paper is under the drum unit, but does not fall into the fusing unit.

Then you should look at a blank sheet, and if its purity remains the same, then “blots” on all prints fall exactly in the fixing unit. Experts attribute the following to the main reasons why the printer starts to smear on paper:

  • Unsatisfactory condition of the thermal film
  • Detachment of the “jacket” of the rubber shaft
  • Incorrect settings
  • Electronics problems

Unlike problems with low-quality toner, the above malfunctions sometimes entail, in addition to low-quality printing, increased toner consumption, so experts strongly do not recommend delaying their correction.

Ink cartridge problems

When the printer starts to print dirty at the edges or in the middle, the problem may not be in the device itself, but in the cartridge with which it is equipped. Print cartridge problems can be indicated by dots and streaks on the printout, general dirty background, and other traces of excess toner on the paper. Depending on the nature of the “contamination”, one can assume the presence of one or another malfunction. Of course, the printer can be taken to the service as soon as a problem is found, in which case the specialists will independently identify and fix the breakdown, but some malfunctions, with minimal skills, are quite amenable to self-repair. Among the most common problems with a cartridge, office equipment experts point out:

  • Cleaning blade wear
  • Debris or dyes adhering to the blade
  • Overflow of the bunker with “working off”
  • Dirty shafts
  • Low quality toner
  • Drum wear
  • Malfunctions of the charging shaft, violation of contact with it
  • Loss of sealing on the cartridge when replacing toner

In order to fix these problems, it is necessary to partially disassemble the device by pulling out the cartridge and cleaning its blade or replacing it with a new one. After the blade is replaced, the remnants of “waste” must be removed, the reservoir. cleaned, and the cartridge. refilled with toner. When refueling, all manipulations should be performed as carefully as possible, so as not to violate the tightness of the cartridge, because its violation can also lead to the appearance of “dirt” when printing.

Important! If the user does not have sufficient skills in working with such a technique, and has no idea how to dismantle the cartridge or replace the blade, it is not recommended to carry out these procedures on his own, since incorrectly performed actions can lead to more serious damage to the device, aggravating the situation and increasing the cost of future repairs.

Dirty tone on prints may indicate a malfunctioning charge roller or optics. However, exactly the same “symptom” in the operation of printing devices appears when their cartridges are filled with low-quality toner. First of all, it is worth replacing the toner with a better one and running the device in test mode. If the “dirt” does not disappear, it is worth checking the photo roll, and in case of strong or uneven wear, replace it with a new one.

It also happens that the printer starts, as it were, to duplicate the image printed on the media. This may indicate a malfunction in the loading roller, or that this shaft has poor contact with the photo roller.

Important! An experienced technician can easily restore the broken contact, however, most users prefer to replace the charging roller with a new one.

Poorly printed, thin vertical lines on a printout are a clear sign that a small layer of toner has formed on the dispensing blade, preventing it from working. In this case, the blade must be replaced, but if it is not possible to replace it, then you can try to clean the plaque manually.

When replacing certain parts of the cartridge, it is very important to use original spare parts. They cost, in most cases, more expensive than the “left” counterparts, but only they are ideally adjusted to work with each specific model, while cheap counterparts can lead to an increase in the intensity of wear of other parts, which will negatively affect the further operation of the device.

How to fix problems?

On the surface of a serviceable thermal film, no visual defects such as burnt toner or traces of mechanical damage should be observed. If a small carbon deposit is present, then you can clean it manually.

Important! Insufficient heating of the thermal film can also affect the print quality. Occurrence

This can be caused by a malfunction of the sensor, which is responsible for the temperature regime during printing.

On such sensors in many devices, carbon deposits form over time, which must be periodically cleaned.

As for the problems with the “jacket” of the rubber rollers, in order to find out its presence or absence for sure, you will have to disassemble practically half of the device. Worn and peeled rollers must be replaced.

If we talk about problems with electronics, then in most cases it is virtually impossible to cope with them on our own, and in this case it is better to contact specialists from service centers, or give the device for repair under warranty, if any.

Summarizing all of the above, it is worth noting that in order for the printer not to stain the paper, it is worth:

  • Set the device to settings that are optimal for the current carrier
  • Observe the basic operating rules specified by the manufacturer
  • Timely and regularly carry out preventive maintenance work
  • When replacing cartridges yourself, proceed carefully and use only high-quality materials
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If you follow these simple rules, the printer will last a long time, and will not stain the paper when printing.

The printer has begun to stain the paper while printing. Causes and solutions to the problem

Some users of laser office equipment are faced with the following problem: smears on the printer or mfp. The corresponding question arises, what to do in this case? There are many ways to solve this problem in general, and one of the reasons that the printer prints dirty may be in its cartridge. Therefore, you should check your printer with another consumable, and it is desirable that it is original. If the new cartridge did not disappoint you and the printing printer began to work properly, then the problem is definitely a consumable. In addition, spots when printing on a laser printer may appear after refilling the cartridge.

Ink cartridge problems

If the device smears during printing and at the same time stripes appear on the surface of the paper, then the problem of this situation is spilled toner. A possible cause is a worn out squeegee blade (cleaning blade) between the waste toner box and the drum. It is also possible that some foreign object got into this gap or the bunker was simply overfilled with mining. Thus, if the laser printer prints dirty precisely because of the listed reasons, then first of all pull out and disassemble its cartridge, and then replace its doctor blade. Next, you just need to pour out all the spent dye, thoroughly clean the reservoir and refill the laser cartridge.

If a smudging and smearing printer leaves a rather dirty tone on the surface of the paper, then the problem is probably the dirty optics or the charging roller. provided that the printer contains good quality toner. If the coloring matter is of questionable quality, then it is advisable to completely clean the printer cartridge from the old toner and replace it with a new one, of higher quality and more expensive.

If, as before, the laser printer stains the paper and various kinds of stains appear on the printout, which are repeated at approximately the same intervals, then the reason may lie in an unevenly worn photo. In this case, you can try to restore it using a special technology, but the easiest and easiest way is to replace this component of the printing device.

If the image began to duplicate on the printed sheet, then the answer to the question of why the printer smears is in the charging roller, which does not restore the charge on the surface of the photo roller. Another reason is the presence of poor electrical contact with the charging shaft, which may be completely worn out. The problem can be solved by completely replacing the shaft or restoring contact.

Fine vertical and poorly printed lines are caused by build-up of dye on the edge of the metering blade. In this case, you should carefully clean the edge of the stuck toner or simply replace this blade. An article about the main defects in the printing of laser cartridges will help determine the problem of your cartridge.

Printer problems

If, with another consumable, your device continues to smear the paper when printing, then the problem lies in the printer itself. The cause of the dirt can be checked using the so-called. “Stop test”. For this purpose, start the device to print and open the covers. Or you can simply unplug it from the power while the paper is under the imaging drum of the consumable before it reaches the fusing unit. If the sheet of paper is completely clean, then this indicates that it is getting dirty in the fixing unit.
What should be done to find out why laser printer smears? To do this, first of all, pay attention to the state of the Teflon roller or thermal film. On the surface of these products, there may be various kinds of defects or burnt-on coloring matter accumulates. In addition, the problem may lie in insufficient heating of the listed elements.

Check the pressure of the sensor responsible for temperature control, or assess its external condition. it is possible that some amount of toner deposits have appeared on its surface, which must be carefully removed. Sometimes the reason is that the rubber shaft shell has started to peel off. To diagnose this element, you will have to disassemble the entire fastening unit. Also, the printer may smear due to incorrectly set paper settings. For example, they can be designed for thin sheets, and you use fairly thick paper instead. Often, a print defect is associated with the electronics of the device, and in this case, you will have to use the services of specialists.

Ink cartridge problems

  • Duplicate text may indicate a problem with the charge roller (PCR) or imaging drum (OPC). This trouble is also inherent in the wrapped squeegee (Wiper Blade) (see photos)
  • The appearance of black horizontal stripes is possible due to breakdown or chipping on the OPC surface. In addition, black lines are caused by poor contact of the charge roller. You need to apply a little conductive lubricant to the bushing of the roller responsible for the charge.
  • Vertical underprinted lines are caused by ink build-up on the edge of the Doctor Blade. Need to carefully clean the edge or change the blade.
  • Unevenly scattered dots often mean used toner is spilling out of the hopper. It is necessary to make sure that the drum sealing blade and the magnetic shaft sealing blade are in good working order. If there are deformations, the cartridge needs to be serviced or replaced as a whole.
  • An even background and dirt all over the sheet results in poor quality toner or a full used toner compartment. To solve the first problem, you need to use the best toner, for the second, you will have to disassemble the cartridge and clean the hopper.

Printing device malfunctions

Laser printer smudges the paper, what should I do? A dirty sheet may indicate a problem with the printing device. We will tell you how to check it with a “stop test”. What does he mean?

You need to start the printer to print, open its cover or turn it off when the sheet is under the drum unit, but has not yet entered the fusing unit. So, we can separate the breakdown of the stove. Considering that there is no dirt on the paper, we can understand that it got dirty in the fusing point.

You also need to monitor the Teflon roller or thermal film (in some HP and Canon models, thermal film is used instead of the Teflon roller). When there are surface defects or a build-up of burnt toner, this will be the root of the problem. Also, the reason sometimes lurks in the incomplete heating of the negotiated parts. It is necessary to check the pressure of the temperature sensor and its appearance; there is a possibility that toner deposits will form, which must be cleaned off. It happens that the reason for the contamination of the sheet comes from the peeling of the shell of the rubber roller. Independently, according to external data, it is difficult to determine this damage and you will have to disassemble the fastening unit, and then diagnose the shaft.

Also, the source can be hidden in the incorrectly selected paper parameters. In the case where the paper is thick and the setting is for thin, it is easy to get underheating of the fusing unit. This results in an incompletely caked toner and dirt. Sometimes, the problem lies in the “brains” of the device, but this is the “height” at which it is almost impossible to repair it yourself, in the absence of special skills and tools.

Inkjet printers

To the greatest extent, the reasons for which the printer smudges paper during printing include:

  • the use of the wrong paper, which is not able to absorb all the ink that falls on it from the nozzles (nozzles);
  • improper storage of paper, and as a result, its curvature;
  • dirty sheet feeding roller.

Ink cartridge problems

Sometimes the printing device begins to stain the sheet with vertical or horizontal stripes due to wear of the cartridge. It has special purpose check valves that prevent ink from spontaneously flowing out. If they are out of order, a drop forms on the print head, which smears and the printing device begins to stain the sheet.

To resolve the issue “for the moment”, it is necessary to blot this drop by placing a napkin on the parking area and sliding the block with cartridges to the right. Wanting to get rid of this problem forever, you need to install a working cartridge.

Remedies

Here we have listed common complications with inkjet printers such as HP, Epson, Canon.

Wrong paper

If the printer does not always stain the paper, you can try straightening the sheets. This will prevent the paper from touching the head and a nuisance that causes the printer to smear the sheet around the edges.

Laser printers

Many users of this office equipment are faced with a problem: grease the printing device or MFP. Why does the printer get dirty on the paper and what to do?

Our recommendations apply to almost any model and manufacturer. Canon, Samsung, HP, Xerox, Epson. All of them differ in performance volumes, dimensions, shape, and even noise level. But the basis of the laser printing system is formed by common principles and fundamental constituent elements.

Due to this, diagnosing and preventing printer problems is reduced to several points.

  • cartridge problem;
  • malfunctions of the printing device;
  • incorrectly set paper parameters;
  • lack of preventive maintenance.

Reasons why the printer smudges the paper

We invite you to fix the malfunctions on your own and recognize what happened to your printed friend.

NNCXV.INFO 2021