Vertical stripes when printing on a laser printer
Modern office equipment is sometimes quite finicky in operation and laser printers are no exception. One of the most common printing defects indicating a device malfunction is vertical streaking on the paper. This article will tell you what to do if streaks appear on your printouts.
Why do streaks appear when printing on a laser printer
There are a number of reasons why a printing device can leave streaks on documents. Among them:
- Not enough toner.
- Laser problems.
- Imaging drum defects.
- Magnetic shaft defects.
- Poor contact between the drum unit and the magnetic roller.
- Incorrectly installed metering blade.
- Lack of tightness in the cartridge.
- Overflow of the mining bunker.
- Failure of the charging roller.
How to remove vertical stripes when printing
Laser problems or low ink levels are indicated by white lines appearing on the printed pages. In the case of a lack of ink, the solution to the problem is simple. you need to refill the cartridge. Worse if the laser is not working properly. For proper and long-term operation, experts strongly recommend Monitor the condition of the device, regularly wipe the scanner mirror with a clean and smooth cloth.
Drum damage may be indicated by gray-black, wavy stripes, usually located along the edges of the sheet. OPC drum damage is the result of trivial wear and tear during long-term use.
Replacing the part with a new one is considered an acceptable solution to this problem.
The same applies to the magnetic shaft: it is impossible to repair this part and any service center, if defects are found, will immediately offer to replace it. The first sign of magnetic roller wear is a gray background of the document and horizontal dark stripes on it.
If a single vertical white stripe appears on the printed document all over the page, a malfunction of the metering blade may be the cause of the breakage. The blade itself is part of the cartridge. It is responsible for the amount of toner that gets on the magnetic roller.
Blade malfunctions in most cases are associated with the introduction of poor quality paper. The fluffs of such paper quickly stick to the dispensing blade, and the magnetic roller in the place of their accumulation can no longer evenly pick up paint. In order to return the parts to work, it is necessary to carefully wipe its surface with alcohol.
If the document is printed with black stripes across, then a prerequisite for the volume may be poor contact between the magnetic roller and the drum unit. Contact deteriorates due to dirt adhering to the parts. In this case, cleaning the cartridge will help solve the problem.
Streaks of streaks and specks running vertically along the entire page can indicate spills and can be easily removed by cleaning the waste cartridge.
Laser printing and its possible defects
Attention: use the interactive price list to determine the cost of refueling your cartridge (printer)
When you turn on the printer, all printer assemblies and components of the cartridge start to move. the cartridge is prepared for printing. This process is the same as printing, but the laser beam does NOT hit the drum and the image is NOT formed.
It is necessary in order to check the operability of all shafts, the correct installation of the cartridge and warm up the stove (fuser) to the required temperature.
Then the components of the cartridge stop. the printer enters the Ready state (ready to print). When you send an image to print, the following processes take place in the cartridge:
Drum charging. the Charge Roller evenly covers the surface of the rotating drum with a negative charge.
Flashing. A negatively charged drum surface passes under a laser beam. This beam is generated by the printer’s laser unit located above the cartridge and focusing the beam into a slot between the two halves of the cartridge. In this case, the drum goes through a quarter of a turn.
The beam is focused on the drum and is only activated where the toner is to be applied later. By illuminating the drum with a laser, its photosensitive surface partially loses its negative charge in the illuminated areas. Thus, the laser applies to the drum a preimage (latent image) in the form of a weakening of the negative charge.
Toner Application. This converts the pre-imaging on the drum into a visible, toner-developed image that will then be transferred onto the paper. Toner in the hopper adjacent to the magnetic roller is attracted to its surface by a permanent magnet from which the shaft core is made.
When the magnetic roller rotates, the toner on its surface passes through a narrow slit formed by a special blade (“Doctor”, Doctor Blade) and a roller.
As a result, the toner on the magnetic roller is electrified, acquiring a negative charge. Negatively charged toner adheres to areas of the drum that have been lit (empty). “Doctor” also ensures uniformity of the toner layer on the magnetic roller. This takes place for about another quarter of the drum turn. “Doctors” are also called the dispensing blade.
Toner transfer to paper. As the drum continues to rotate, the drum, which already has a toner image applied to it, contacts the paper. The reverse side of the paper is in contact with the positively charged Transfer Roller. As a result, negatively charged toner particles are attracted to the paper, resulting in an image “sprinkled” with toner on the paper.
At this point, the drum has already passed half a turn from the laser unit, which is located above the cartridge in the paper fed between the drum and the transfer roller under the cartridge.
Fusing the image. the paper with the “scattered” toner image moves further to the fusing mechanism. the fuser (fuser), which is located at the back of the printer.
This mechanism consists of two touching shafts, between which the paper passes. The Lower Pressure Roller pushes the paper against the Upper Fuser Roller. Top roller Heat to such a temperature that when in contact with it, the polymer particles of the toner melt and fuse into the paper.
The melting point of the toner is 100 to 180 degrees Celsius. To prevent toner and paper from sticking to the heat roller, it has a Teflon surface and a thermal film.
Drum Cleaning. Some toner is NOT transferred to the paper and remains on the drum. At the end of the print cycle, the drum goes through another quarter of a turn and needs to be cleaned of toner residues. This function is performed by a cleaning blade (Wiper Blade, sometimes called a Cleaning Blade or a doctor blade, squeegee), which cleans off the remaining toner on the drum and directs it to the cartridge waste bin.
At the same time, a regenerating blade located between the drum and waste bin prevents toner from spilling onto the paper.
Image erasure. at this stage, the latent image applied by the laser beam is destroyed from the drum surface. The charging roller evenly covers the drum surface with a negative charge, We restore the charge in those places where it was lowered by the laser.
Below is a list of print defects that can be seen directly on the printout, and the reasons for their occurrence. The reason for such printing defects as a uniformly faded or oversaturated image (sometimes even the volume of the image is felt) can be understood only by disassembling the cartridge and evaluating the amount of processing.
Does the laser printer print in stripes and third-party artifacts? Solving the most popular problems!
Sometimes it happens that laser printers begin to produce stripes, blots, dots or other third-party artifacts on the leaves during printing.
The causes of such problems can be caused by both low-quality toner and problems with the cartridge:
- Incorrect assembly of consumables after refueling;
- OPC drum wear
- Depressurization of the bunker with paint, etc.
Also, many inexperienced users who prefer to do everything with their own hands often refuel the cartridge “to the bitter end.” And this, in turn, leads to the failure of its SEPARATE units and parts, which negatively affects not only the quality of printing, but also the performance of office equipment as a whole.
Therefore, today we will tell you why you have streaks when printing on a laser printer, and also share recommendations on how to get rid of this.
TOP. Vertical stripes around the edges? Drum (photo drum) wear!
Probably the most common problem caused by running out of drum life. Often found in cartridges that have been refilled with toner several times.
If this is your first time refilling the cartridge, then most likely it will be enough to wipe the drum unit with a clean cloth. Detergents, in this case, are prohibited to use, so you will only harm!
Vertical stripes around the edges
TOP. Dots with stripes in a chaotic order? Check the dispensing blade!
Small dots all over the sheet accompanied by vertical streaks can indicate three potential printing problems caused by:
- Incorrectly installed dosing blade (needs to be corrected)
- Overfilled waste toner box (clean it)
- Low-quality toner, or fill the cartridge with new dye powder, the remains of the old one have not been disposed of (you need to replace the toner).
Dots with stripes in a chaotic manner
TOP. White streaks or gaps during printing? Refill the cartridge!
As soon as the printer began to leave white streaks or skip individual elements on the prints, then it’s time to think about refueling used cartridges or buying new cartridges.
Sometimes it happens that third-party particles get on the photo, which become the source of the above problems.
White stripes or gaps
TOP. Horizontal black bars? Cleaning the waste toner box and checking the magnetic roller contacts!
The solution to the problem of horizontal black streaks is that you need to clean out the waste paint hopper and then check the correct positioning of the metering blade and squeegee.
Be sure to also correctly install the contacts between the drum unit and the magnetic roller.
Horizontal black stripes
TOP. Chaotic streaks and artifacts? Eliminate cartridge depressurization!
If the tightness of the cartridge is broken, eliminate the problem by checking the integrity of the sealing gum, without which, most likely, toner spills.
Chaotic stripes and artifacts
Have you done all the necessary steps, but the printer still prints in stripes? Contact the MosToner service center for help. 24/7!
Streaks on paper when printed on a printer
Very often office workers, and home users of office equipment, are faced with problems of loss of print quality. Unfortunately, sometimes there are situations when the results of printed documents do not correspond to the declared quality and look completely different from what the user would like to work with a peripheral device. And the most common phenomenon can be considered light or dark stripes when printing on a printer (HP, Canon, Epson, etc.) or a multifunctional device (Samsung scx 4200, Panasonic kx flm663, Kyocera). What this may indicate, as well as how you can fix the problem, we will tell you today.
Currently, questions regarding the maintenance of modern office equipment and multifunctional devices, which greatly facilitate the working printing workflows, are very relevant. In particular, “faint” printing and printing with black stripes worries users who encounter it, for the reason that most of them simply cannot determine the reason why such problems appear and, therefore, how to fix them without the need to contact a service center.
Reasons for streaking when printing
First of all, black / black streaks appear when printing on paper due to a problem with the cartridge. Poor print quality of the finished document may be the result of worn out cartridge components, insufficient amount of toner powder (in a laser printer) or ink (in inkjet printers) in the cartridge, poor maintenance or refilling the cartridge.
In most cases, the solution to the problem (horizontal or vertical dark stripes) is to carry out preventive maintenance. Less often it happens that the unit needs repair.
Purchasing a multifunctional or any other printing device (Panasonic KX, Kyocera, Samsung, Epson, etc.) that reproduces printing processes at the highest level, the user must be prepared for the fact that the quality level may decrease over time. At this stage, the question may arise as to why this can happen and why the printer can reproduce black bars when printing. The explanation is quite simple.
At the time of purchase, the device usually contains a demo cartridge with a certain volume. As the ink in the cartridge runs out, the quality of the images will gradually decrease during the printing processes on the printer. This may be evidenced by black streaks on the paper, indicating that the cartridge needs refilling. After the charging procedure, you can continue to use the printer.
However, every user knows that all consumable parts of the cartridge (Panasonic, Kyocera, Samsung, Epson, Xerox, etc.) have a certain resource. Therefore, after the second or third refueling, it will be necessary to perform Proper maintenance of consumables and replace worn parts.
The mechanism of the cartridges is not that complicated. And, knowing what components it consists of, what is the purpose of each, what each is responsible for when transferring the digitized data to paper and what problems they may cause, it is quite possible to replace it yourself. Having mastered the knowledge of the components of spare parts of cartridges, you will not only be able to improve the quality of printing yourself, but also be able to significantly save.
Printing Problems and Symptoms
When clarifying the reasons why printing on the printer is “striped” (horizontal or vertical, black or white stripes appear), it is important to note the differences between the printing devices themselves.
As you know, there are two categories of printing devices: inkjet and laser. And the reasons why the print quality deteriorates on a particular device depends on what kind of machine you are using (Panasonic, Kyocera, Samsung, Epson, Xerox, etc.).
If you have problems printing with inkjet printers
The main reasons why black streaks appear when printing documents on an inkjet printer include:
You can pay 30-50% less for light, depending on what kind of electrical appliances you use.
- The ink level is minimal;
- Air or ink residues in the print head;
- Printhead malfunctions.
To troubleshoot faults that are the reasons for the appearance of black stripes on paper, you can try to apply a general algorithm of actions, which we will consider using the example of an Epson l800 inkjet printer.
First, check the ink level by running the Epson l800 Device Management Utility. If the program shows that the ink level is minimal, you should urgently refill the cartridge. When working with CISS, the ink level is easy to determine, since the reservoirs are transparent. However, when checking the functionality of the system, it is worth making sure that it is not airy and that the filters are NOT dirty.
If the cause of the black lines is different, you can try cleaning the print head. In machines with inkjet printing technology, the head can be installed by the manufacturer either in the unit itself (this is implemented in most Epson models, including the l800), or in a cartridge (HP, Canon printers).
Cleaning the models of printers with a print head inside (Epson l800) at home is performed by software. A blank sheet is inserted into the paper feed tray, and the printer software is launched on the computer through the “Service” / “Maintenance” section. Next, the head is cleaned, as well as the nozzles (nozzles) or the cartridge.
In cases where it is impossible to eliminate malfunctions in this way, most likely, the head or the components connecting it to the main part are out of order. In such situations, it is necessary to replace the spare part.
However, since in Epson devices (l800, R290, etc.) the print head is located in the middle of the device itself, in cases where it comes out of a standing position, you will have to contact the service center for parts replacement.
If you have problems printing with laser printers
There can be various causes of streaks when printing (horizontal, vertical) on laser printers. For color laser and monochrome laser products The most common causes of printing problems differ.
If print quality deteriorates in monochrome laser printers all-in-one printer (Samsung scx 4200, Panasonic kx flm663, Kyocera FS 6525all-in-one printer, etc.), it may indicate the following factors:
- Low Ink. a white line running vertically approximately in the center of the sheet;
- Ingress of extraneous parts, objects. vertical white stripe with clearly defined boundaries;
- Poor cleaning of the cartridge and accessories. pale light streaks, thin and vertical;
- Fotoval / corotron contact damaged. 4/8 horizontal black stripes.
As a rule, the most common reasons for streaking and poor print quality in monochrome all-in-one printers, such as Samsung scx 4200, Panasonic kx flm663, Kyocera FS 6525all-in-one printer, and secondly, are precisely poor cleaning of the cartridge and wear of parts. For example, in Kyocera devices, damage to the photo roll, squeegee, wear of the teflon shaft cause longitudinal black stripes. And if you replace the components on Kyocera machines in a timely manner, they will be able to print high quality again.
As in Kyocera units, Samsung devices (scx 4200) produce a “striped” print when the photo roll, transfer rollers, metering blades are worn out. In such cases, Samsung printers (scx and other models) should be refurbished with worn parts replaced.
In addition, Samsung’s SCX line printers have a chip installed and refilling such cartridges without reflashing negatively affects the print quality. Therefore, this version should also be checked if the Samsung scx device began to print improperly.
When using different Panasonic series devices (for example, KX MB-283), “striped printing” problems rarely occur. In most cases, streaks on the paper after printing indicate poor cleaning of the cartridge components. So, for example, dirt on the glass of the laser, corotron, as well as residues of the previous toner in the hopper may be the result of streaks when printing on Panasonic kx worthy of laser devices.
In Panasonic KX devices, the camera is very sensitive to light. Therefore, when refilling and cleaning the Panasonic KX cartridge, do not expose it to bright light. In addition, improper handling of drum and other spare parts in Panasonic KX-worthy printers can result in poor image quality.
Stripes when printing on a laser printer: causes, solutions
During the use of laser printers for the output of various documents to their owners, problems often arise associated with the deterioration of print quality. In particular, the resulting document may contain horizontal or vertical stripes of different lengths.
There may be several reasons for this, namely: running out of toner in the cartridge, problems with the laser, damaged imaging drum or magnetic roller, Broken contact between them, leakage of the cartridge, Overfilled waste, damage or failure of the charge roller.
Also, the appearance of horizontal and vertical stripes when printing on a laser printer is possible due to a drop or malfunction of the cartridge, or improper refilling. Poor toner quality should NOT be ruled out as a cause.
White stripes on the document
If you see white streaks when printing with a laser printer, the cartridge is most likely out of toner or the problem is with the laser. The finished ink says a wide white stripe along the entire length of the page, which will increase with each subsequent attempt to output the letter to the paper. It is worth noting that if the cartridge is out of toner, do not take it out and shake it, since these actions will NOT affect the print quality in any way, and the imaging drum may be seriously damaged or completely out of order. The solution to the problem is to refill the cartridge.
If toner is present and streaks remain, there is most likely a problem with the laser. It doesn’t have to be serious. It is possible that dust, small insects or paint particles have gotten on the optics. To prevent this, you need to keep the printer clean and, if necessary, wipe the laser mirror with a lint-free cloth.
The drum unit, in other words, the photoreceptor, is the main component of the cartridge. It consists of a coated aluminum shaft that is sensitive to optical radiation. Over time, the coating wears out, which is why streaks appear when printing on a laser printer.
The first sign of damage to the drum unit will be gray-black wavy lines on one edge of the printed document. The problem is solved by replacing the drum unit. Also, streaks may appear due to dried lubricant on the photoreceptors. Such a malfunction occurs quite often, especially if the device has NOT been used for a long time. It can be solved much easier: just run the printer cleaning program from its settings menu on the computer.
Failure of the magnetic shaft
In the design of a laser printer, a magnetic roller is used to transfer ink from the hopper to the drum. The absence or presence of defects, such as streaks, when printing on a laser printer directly depends on how evenly the toner is supplied to the photoreceptor. A noticeably darkened gray background or small dark stripes indicate, first of all, a deterioration in the properties of the magnetic shaft. The problem can be eliminated by replacing the failed shaft.
Problems with the metering blade
One of the elements of the cartridge is the metering blade. It controls the amount of toner delivered to the magnetic roller during printing. Poor quality paper used for the printer can be one of the causes of this breakdown. Fine fluff from the paper will accumulate on the blade, and therefore the roller will NOT be able to pick up enough toner where they accumulate. As a result, the printed document will have a white stripe along the entire length of the page.
To restore print quality, you need to make sure the metering blade is properly seated. If blockages are visible, the blade must be cleaned, and in case of complete wear, replace it.
Problems with photoreceptor and magnetic roller contact
Horizontal black stripes when printing with a laser printer means that there is no or no contact between the drum unit and the magnetic roller. In most cases, this is facilitated by contamination from the contacts. To solve this problem, you need to clean the cartridge.
If, when printing on a laser printer, stripes appear in different places throughout the page, most likely the problem is in the cartridge itself. To find out the cause of the malfunction, you must pull the part out of the printer and inspect it carefully. If toner spills from it, make sure there are seals and no traces of mechanical stress, such as cracks or chips. If an unrecoverable defect is found, only cartridge replacement will help.
Waste Toner Box Overflow
If toner spills when you remove the cartridge, check the fill level with waste. An overfilled hopper can also be indicated by vertical black bars when various files are printed on the laser printer. They can consist of scattered small stripes and dots and are located along the entire length of the document. Also, these stripes will be located to the right or left of the center of the sheet. This defect can be eliminated by cleaning waste from the hopper.
Malfunction of the charging roller
Charge roller problems can be diagnosed if all or part of the document is duplicated during printing. The charge roller, aka corotron, is a metal rod with a rubber sheath. A charge passes through it to the surface of the drum when printing is started and the final static voltage is removed after. Incorrect operation of the charging shaft is caused by such malfunctions as:
- Dirt on the rubber surface of the shaft or its wear;
- Tears or punctures of the rubber coating;
- Electrical breakdown or change in electrostatic parameters.
If there is visible damage to the rubber coating of the shaft, then in order to eliminate duplications and stripes when printing on a laser printer, it is worth checking whether there is an electrical contact on one shaft, and also clean the rubber jacket. If these manipulations did not give a positive result or there is mechanical damage in the roller device, it is necessary to replace it.
This article discusses the causes of image blur, vertical and horizontal stripes when printing on a laser printer, as well as methods for restoring it to work. It is worth noting that everything described above is done at your own peril and risk, and if you are NOT a specialist in this area, it is better to give the printer for repair to qualified technicians to fix a printing malfunction. Sometimes self-intervention can aggravate the problem and, as a result, lead to even more expensive device repair.
Does the printer print in stripes? 9 reasons and their elimination
During the operation of laser printers, users quite often face the problem of a decrease in print quality, namely the appearance of horizontal or vertical stripes when printing documents.
There can be several reasons for the decline in laser print quality:
- Toner is low;
- Problems with the laser;
- Damage to the drum unit;
- Damage to the magnetic roller;
- Violation of contact between the magnetic roller and the drum;
- The metering blade is installed incorrectly;
- Cartridge leak
- Overflowing bunker;
- Charge roller failure.
Streaks can also be caused by damage to the cartridge due to dropping, low-quality toner, or improperly refilled cartridge.
White streaks when printing
If the printer prints in white stripes, it could mean that the ink cartridge is out of ink or there is a problem with the laser.
An indication that a cartridge has run out of toner is a vertical white stripe along the entire length of the page, the width of which increases with each subsequent printout. It is important to remember that if the printer is out of toner, do not remove the cartridge and shake it; these steps will NOT solve the print quality problem, but may damage the drum unit. The way out of the situation is refilling the cartridge.
If toner is present in the cartridge, the cause of the white streaks may be a laser problem. For example, the ingress of toner particles, insects or just dust on the optics. To avoid a defect, you need to regularly monitor the condition of the printer, clean the laser scanner mirror from dirt with a smooth, lint-free cloth.
The drum or photoreceptor is the main part of the cartridge; it is a shaft made of aluminum with a special coating that is capable of receiving optical radiation. During the operation of a laser printer, the light-sensitive coating is erased, which entails the appearance of printing defects.
A signal that the photoreceptor is damaged is the appearance of gray-black stripes shifted to the edge of the paper and having a wavy shape.
Gray stripes when printing
The solution to the problem will be to replace the failed part of the cartridge, that is, the drum unit.
“Striped printing” can also be associated with such a common problem as drying out of the photoreceptor lubricant. The defect occurs if the device has not been used for a long time. The “Drum Cleaning” self-cleaning program will help to solve the problem, which can be found by going to the “Printers and Faxes” menu.
Damage to the magnetic shaft
The functional purpose of the magnetic roller is to transfer toner from the hopper to the photoreceptors. The quality of laser printing directly depends on the uniform supply of toner to the photosensitive drum. Excessive gray background or the presence of horizontal dark lines indicates a deterioration in the magnetic characteristics of the shaft.
The way to eliminate the defect is to replace the magnetic shaft.
Malfunction or wear on the metering blade
The dispensing blade is a component of the cartridge that regulates the amount of toner delivered to the magnetic roller. The reason for the malfunction of the dispensing blade can be the use of low-quality paper for laser printing, this leads to the fact that the fibers of the paper of poor quality adhere to the dispenser blade, the magnetic roller in the place where the fluff accumulates cannot collect ink, when the document is printed, a vertical white stripe appears all over the print page.
To restore print quality, check that the dispenser blade is installed correctly, if necessary, clean the dispensing blade surface with alcohol. If the part is worn, it will need to be replaced.
Loose contact between the magnetic roller and the drum
Black transverse stripes may indicate a lack of proper contact between the magnetic roller and the photosensitive drum. The lack of charge between the parts of the cartridge, as a rule, leads to dirt adhering to the contacts.
The solution is to clean the cartridge.
Banding all over the page, appearing in different places. the cartridge itself is most likely a cause of poor print quality. The first step is to remove the cartridge from the printer. If toner spills, make sure there are rubber bands and no mechanical damage to the case (cracks). If there are uncorrectable defects, replace the old cartridge with a new one.
If toner spills, first check to see if the waste bin is overfilled. The fact that the waste container is overfilled with waste toner is indicated by vertically arranged stripes along the entire length of the page, consisting of small chaotic lines and dots. The stripes are usually offset to the left or right side of the sheet. To eliminate the defect, you just need to clean the waste cartridge.
Failure of the charge roller
The charge roller or corotrons is a metal rod pressed into a rubber sheath, by means of which the drum surface is charged at the initial stage of printing and the latent final electrostatic image is removed at the end of the cycle. Failure of the primary charge shaft entails duplication of a fragment of text or image.
The following defects can lead to wear on the charge roller:
- Contamination of the rubber shaft surface;
- Electrical breakdown;
- Surface wear;
- Tears in the rubber coating, punctures;
- Change in electrostatic parameters.
To eliminate a printing defect caused by problems in the operation of the primary charge roller, first of all, it is necessary to check the presence of electrical contact on the charging roller, and clean the surface. If the described actions did not have a result or mechanical damage to the corotron occurs, then it should be replaced.
Causes of dots on paper when printing
During the printing process, sometimes various defects appear on the paper. This can happen with both the inkjet and laser unit. And with any printer model. Even observing all the necessary requirements for the operation of equipment, you will not be insured against them. But do not immediately carry the equipment for repair. You can try to solve the problem yourself. Black dots when printing spoil documents and force them to redo them over and over again. What does this mean? What kind of damage to the printer can cause dots to appear? We’ll figure out.
Printout on a printer
If the page comes out to the dot when printing, this indicates a problem with the nodes in the printer. It is worth looking at the photo of pages with possible problems in advance. We will consider each breakdown separately and give recommendations for their elimination.
Varieties of defects. Ways to eliminate them
If defects appear on the leaves, first of all, the printer must be carefully inspected.
- The points are located in different areas of the sheet. It is worth checking the drum surface. It can get dirty. They are printed on the document in the form of dots or sticks. You can fix the problem yourself. Disconnect the equipment from the power supply. Open the cover and remove the cartridge. Wipe the drum without a lint-free soft cloth. Take a cotton swab and wipe the top of the cartridge compartment.
- Vertical entire page Intersection with dots. Inspect the cartridge and drum. Dirt or caked toner may remain on the cartridge after refilling. In this case, the soft surfaces must be completely cleaned. If the cleaning procedure did not help, and the sheets still come out to a point when printing, it is necessary to carry out a full cleaning of the cartridge. In addition to dirt, it can be damaged.
- Defects appear along the page at a short distance from each other (3-4 cm). The magnetic shaft must be checked. Dirt can stick to it. To check this, the shaft in the cartridge must be turned 180 degrees. When changing the position of the points on the page, we can conclude that the fault is precisely in the contamination of the shaft. Clean the equipment with a soft, lint-free cloth. In this case, use a special cleaning solution.
- If the distance between the defective elements is about eight centimeters, the reason may lie in the dirt on the drum. It is recommended to clean its surface with a solution. Using a lint-free cloth.
- The paper is “decorated” with dots within a black, wide strip. New drums are coated with talcum powder. This tool remains on the surface of the part for a long time. And leaves marks on the leaves. It is recommended to clean the new drum immediately after unpacking.
- Small dots all over the sheet. The correct toner is in the cartridge. Unfortunately, the service may confuse colors. You should go to the master who refueled the unit and request replacement of the toner Suitable for this cartridge.
- White dots when printing. They may appear after replacing the toner, for example, on an HP laser model. Defects of white color are formed all over the sheet or in SEPARATE areas of it. The reason may be different: poor quality toner, flushing the system with a greasy agent. In such cases, you should replace the paint or wait until the residues of the greasy mixture have completely come out of their parts. If there is no time to wait, it is recommended to rinse the cartridge with a harder product. It is better to contact service with this problem.
Dots on paper
- White dots on the page are like pushing through the paper. This appears due to too much pressure on the rollers. The reason is a mismatch in the thickness of the paper. On the sublimation page, ink is NOT absorbed and remains on the surface. It is recommended to change the paper to matte.
- Vertical defects in the middle of the page. If toner is sticky and sticks to the dosage blade. This blade is in the cartridge. To get rid of vertical dots, open the cartridge and clean the blade with a soft cloth.
- The appearance of vertical, black spots. They can be of different diameters, but most often they are equal. This indicates complete drum wear. The part should be replaced with a new one.
Vertical black spots on the sheet
Problems with printing laser printers
Streaks or dots when printing on a laser printer can appear for various reasons
- Incorrect toner. Or it ends. Check the cartridge, replace the paint if necessary;
- The cartridge is leaking. This happens during installation. It is recommended to remove the part and reinstall it according to the instructions;
- Dirt or damage on the drum unit. Examine it carefully. If necessary, clean or replace with a new drum;
- Incorrect installation of the metering blade. Remove the cartridge and inspect the blade. If installation is a problem, remove the part and reinstall. It is better to entrust this to a professional;
- Damage to the magnetic roller or foreign objects falling on it. The element must be removed and cleaned;
- Loose drum contact. In this case, it is also recommended to take the unit to the service.
Each problem can be examined in detail in the photo. To carry out the correct diagnosis of black or white points. It is better for beginners not to figure it out on their own. Otherwise, you can damage the equipment irrevocably.
What to do if a line appears while scanning through the ADF
A fairly common problem in devices equipped with an ADF is a band that appears when scanning. In general, it should be noted that the all-in-one printer is practically the same as a regular flatbed scanner. Quite often it is equipped with the so-called. Automatic document feeder.
The most common problems
So, if your machine has a black line when scanning through the ADF, but there is such a defect when copying from the scanner glass, then the probable cause of this problem is contamination of the ADF scanner glass. The elimination of the problem consists only in the fact that you need to gently wipe the narrow glass of the scanner, using a glass cleaner. After that, the scanner should work normally.
If, when scanning a sheet, the images are not visible at all due to the black strip, then in this case it is better to purchase a new device or resort to the help of a service center. The latter option can be very costly. If, during scanning, a black strip appears on the image, but the text is clearly visible, then try to use NOT the standard software of the device, but the FineReader program or any other suitable program.
Other causes and solutions
In addition, the appearance of such a problem can be associated with parsing and displacement of the scanning bar. No wiping will help in such a situation, this kind of manipulation with a ruler can only lead to the movement of these stripes, but NOT to eliminate them. To solve the problem, you just have to replace this part.
If a streak appears when scanning through the ADF, you can try replacing the scanner ribbon cable. The fact is that this part is made of aluminum for greater low cost. Those. The loop in the scanner is a thin strip, which is soldered into a strip of polymer. Over time, this part of the device breaks inside and in this situation no bending will help. The solution to the problem is a complete replacement of the scanner cable.
A defect such as a black line during scanning may also appear due to a problem with the scanner itself. Perhaps he has dust or covered lamps. In such a situation, you will have to carefully disassemble the scanner, then thoroughly wipe the lamp or replace it if it is out of order.
A defect in the light-sensitive parts of the readout matrix of the device can also lead to the appearance of stripes. This kind of malfunction usually manifests itself in the form of lines of different colors, a wide band and even a pattern. At the same time, they will be displayed constantly in the same place.
In addition, the appearance of lines during the scanning procedure may be due to contamination of the calibration strip. The reason for this is liquid that has gotten under the edge of the glass. If there are damaged places on this strip, then the sensors in THESE places should not be calibrated. This, in turn, leads to the appearance of vertical lines. For this reason, under no circumstances should the cleaning agent get into the end of the glass. Those. First apply this liquid to a cloth, and only then use it to gently wipe the tablet.
If an external adapter acts as a power source for the scanner, then a malfunction of this element may lead to the appearance of horizontal stripes. Another prerequisite for such a problem may be the carriage, which moves unevenly due to the loosening of the belt, it sticks or does not slip well. Thus, there are many reasons for the appearance of stripes when scanning through the ADF, and if you cannot identify it, then it is better to seek professional help. If they do not help, then you will have to fork out for a new scanner.
What to do if the printer prints with stripes. Why does an inkjet printer strip
What to do to correct the print
Sudden streaks when printing pictures or text documents may appear due to low ink levels.
Software check of the amount of dye. Go to the properties of the printing apparatus, click on “Service” or “Service”.
Starts a test with paper inserted in the tray. If there is little ink, a new cartridge is bought.
If the printer has been left idle for a long time, or if it is frequently moved from place to place, streaking may be due to problems with the print head. For the same reason, poor printing becomes after refilling the cartridge or replacing it by users with no experience.
- Checking the nozzles / nozzles. In the printer properties, select “Nozzle check” or “Nozzle check”.
- Programmed head cleaning. For Epson: in the properties on the “General” tab, press “Settings”, click on “Cleaning printheads” or “Cleaning nozzles”. The procedure is repeated, if necessary, after 5-15 minutes. When the stripes appear on a Canon printer, go to the “Printer Properties” and on the “Maintenance” tab, start the “Cleaning” and “Deep Cleaning” options in turn. Recommended for prophylaxis to reduce dye consumption. In models without a pump (for example, Canon Pixma MG2440) software cleaning does not work, it is done only manually.
Manual cleaning of the print head built into the cartridge (Canon, HP). The inkwell is placed on a rag dipped in warm cleaning liquid, nozzles down. After 5-10 minutes. The surface is wiped dry. If after that the stripes have NOT disappeared, the cartridge needs to be replaced.
Ink or head problems are the main ones. In rare cases, stripes occur due to failures in the mechanics of the device itself or wear of parts.
- The encoder tape is NOT read. When dye or dirt gets on it, the part stops “recognizing” some of the strokes, which leads to the printing of one or more vertical stripes. To fix the problem, it is enough to clean the tape with a cloth soaked in water and then wipe it dry. You cannot use acetone or other solvents, they destroy the markings on the tape. They act carefully so as not to move the ribbon from the carriage, otherwise a complete disassembly of the printer will be needed.
- The encoder disc is NOT read. The part has the shape of a wheel with markings applied to it to determine the position of the letter during printing. When the marks become dirty with ink, readings fail and horizontal stripes are printed on the paper. They will be at the same distance from each other, corresponding to a full revolution of the disk.
Rarely, defects on a printed document appear due to software malfunctions. The software can be damaged by a virus, by the user or during a power outage. The problem is solved by completely reinstalling the driver. Installed from a boot disk or downloaded from the manufacturer’s official website.
Stripes when printing on a laser printer
What is the reason for the stripes
- Low toner.
- Depressurization of the cartridge.
- Filling the container for the used powder dye.
- Incorrect squeegee installation.
- Breakage of magnetic or photocell.
How to fix
Uniform white streaks appear on the paper when toner is low.
It is better to buy a certified powder, and if you refuel yourself, all work is carried out in a well-ventilated area due to the high toxicity of toner.
To identify leaks in a cartridge, remove it from the printer
- Further Examine for cracks, chips, loose areas;
- Check the places where the bolts are screwed;
- Shake the cartridge gently to check if powder is spilling
- Slide the shutter near the photogallery, see if there is toner on it.
Often times, the printer will strip due to the lack of periodic cleaning of the waste toner box. If cleaning is NOT done after each refueling or at least once in two refills, continuous wide stripes will be printed on the paper.
When the photo roll is worn, stripes will be printed on the side of the sheet: case, on the left, depending on the side of wear, or on both at the same time.
Similarly, you need to act if the magnetic and photo roller do not fit well together or the dosage blade (squeegee) is faulty. The blade changes with the magnetic shaft.
If the blade is just dirty with toner or a foreign object has fallen under it, cleaning it can help.
- Cartridge is removed.
- On its body, 8-9 screws are unscrewed, located on both sides.
- The top cover is removed, under which the magnetic shaft with the blade.
- Excess items are removed from under the squeegee, and the surface of the blade is gently cleaned with detergents. It is better to clean the sharp part with a wooden stick.
Diagnostics by the nature of the stripes