Urgently remove the black streaks from the copy paper, can anyone help me quickly? Kneel and beg 10

Generally speaking, it won't be a problem with the paper, your re-copying method is too funny, the landlord took out the toner cartridge, opened the lid to reveal the glue stick inside, there will be a black mark on it, take a clean paper or towel to wipe it off, and then copy, a short tube for a while. But to solve the problem for a long time, please clean up the waste toner in the toner cartridge.

I understand that the marks on the edges you said are caused by the difference in the background color of the newspaper and the photocopier, and it would be much better if there was a similar color of paper underneath, and the method you said can actually be done :) but be careful that the color must not be too bad.

You should be able to turn the density of the copier down.

Try to make the color difference between the text and the background larger. The photocopy will be good.

I'm a little confused about what you said Generally speaking, the display becomes blurry due to the capacitor behind the display Caused by the capacitor running Diagnostic method Unplug the power supply of the display and put it for a day or two It will be fine, but it will be done for a period of time The second is that the display capacitor switch string can adjust the screw button on the capacitor.

The blurred screen you said Generally speaking, it's not these faults As long as there is a blurred screen, it's the fault of the graphics card You first plug the cable connecting the monitor to the host If it's not good, it's the fault of the graphics card You pull out the graphics card and plug it back in It's not good, then you have to replace it You try it Generally speaking, the screen blur is a problem with the display capacitance or aging The blurred screen must be a fault with the graphics card or the display plug.

Cause of failure: The reason why there are a lot of black streaks in the photocopier copying: the toner cartridge is leaking.

Solution: In general, the drum core is dirty or worn, and the printing can be restored to normal after the drum core is cleaned.

Another case is if the drum core is placed on the ground during the powder change, or if the drum core touches the screwdriver.

and other hard objects, the drum core will be worn. Thanks to the photosensitive drum.

The core is made of photosensitive material, so the repair method is to repeatedly wipe the surface of the photosensitive drum with photosensitive drum polishing cleaner 3 to 4 times.

Be careful not to leave the cleaner on the surface of the drum and then put it back in the drum holder and it is ready to use.

There are three aspects that can be considered for inkjet printers:

Scrape the paper against the print head to see if the paper is arched or if the material is too thick.

The pressure in the ink pipeline is uneven, and the weather is too hot, resulting in a high pressure in the ink circuit of the machine, and the ink comes out of the nozzle and discharges the air in the pipe.

If there is a problem with the print head, check whether the print head is perforated or degummed.

The voltage of the motherboard is unstable, which is relatively rare, and can be eliminated from the above 3 methods one by one.

There are three reasons why laser printers are available.

1 Black dots or black lines appear on the printed paper pattern and still appear in the same position after the paper change. The cause of the failure is a damage to the OPC drum.

2 If there are horizontal stripes on the printed paper pattern, and they still appear in the same position after changing the paper, it means that the scraper needs to be changed.

3. If there are longitudinal stripes on the printed paper pattern, and they still appear in the same position after changing the paper, it is that the magnetic roller on the powder bin box is damaged and needs to be replaced.

The black stains copied on the copy paper are generally the ink in the printer, which is rubbed on when printing.

If the copy document is not clear and there are black marks, it should be a problem with the consumables, and you can try to replace the consumables.

If there are stains on the original paper, it is caused by contamination on the toner cartridge of the photocopier or unclean scraping.

The party branch secretary's views and understanding of project management should not simply be regarded as the work of the project manager, and put himself out of the way. Especially for the work requirements of the superiors, the active and advanced participation of the party branch reflects the support for the project management work, and can play a role in promoting the implementation of relevant work as soon as possible. For example, how to promote the work of the project department in cost control is not only the administrative work, but also the party branch should be listed as the focus of work, and it should be one step ahead in planning.

The first is to publicize among the employees, expand the scope of the project department's understanding of the cost center, and strengthen the employees' awareness of efficiency; The second is to plan the establishment of a cost control supervision team and participate in the formulation of relevant systems. In the third step, the party branch will further carry out deeper positive thinking on how to strengthen internal management, improve expenditure procedures, and control expense expenditure. These tasks are what the administrative leaders want to do but do not have the energy to do, and the advanced action of the party branch can further promote the implementation of relevant work as soon as possible.

The "promising" of the party branch in management has further promoted the implementation of party building work, and the support of administrative leaders and employees can also be obtained in the process of implementation. On the contrary, if the role of party building work cannot be reflected in management, it is more difficult to obtain more support from employees in party affairs.

The first column of the table indicates the number of lemonade glasses that Telma can produce, ranging from zero to 10 glasses per hour. The second column shows the total cost of producing lemonade at Telma. Figure 13-4 plots the total cost curve for Telma.

The amount of lemonade (according to the first column) is on the horizontal axis, while the total cost (according to the second column) is on the vertical axis. Southy? Terma's total cost curve shape versus Hengree?

Helen's similarity. In particular, it becomes steeper as production increases, reflecting (as we have discussed) marginal yield decline.

Fixed vs. variable costs.

The total cost of Telma can be divided into two categories. Some costs do not change with the output of the production and are called fixed costs. Telma's fixed costs include the rent she has to pay, as this cost is the same no matter how much lemonade Telma produces.

Similarly, if Telma needs to hire full-time store staff who pay salaries, the clerk's salary is a fixed cost, no matter how much lemonade is produced. The third column of table 13.2 shows the fixed cost of Terma, which in this case is $3 per hour.

Some of the costs of a business fluctuate as the business changes its output, which is known as variable costs. Telma's variable costs include the cost of lemons and sugar: the more lemonade Telma makes, the more lemons and sugar she needs to buy.

Similarly, if Telma had to hire more workers in order to produce more lemonade, then the wages of those workers would be a variable cost. The fourth column of the table shows the variable costs for Telma. If she doesn't produce it, the variable cost is zero, if she produces one cup of lemonade, the variable cost is dollars, if she produces 2 cups of lemonade, the variable cost is dollars, and so on.

1. There is a problem with the optical scanning unit.

There is a problem with the 2 imaging unit.

3. There is a problem with the fixing unit.

1. Clean the optical scan first.

2. Check the imaging unit.

3. Check the fuser unit.

If the drum is broken, find a professional to overhaul it for you.

1. Photosensitive drums.

1) The pressure of the scraper is too large, and the photosensitive surface is generally scratched due to long-term friction.

2) The drum is not installed properly, and the drum is scratched in contact with other parts.

2. Clean the part.

1) The cutting edge of the scraper has too much powder, the cleaning effect is poor, and the cutting edge is defective.

2) There is a black belt on one end of the paper, and the charging or cleaning part of the opposite end is usually malfunctioning.

3. Developing part.

1) The magnetic roller is stained with strips of toner condensate.

2) The toner on the developing roller is unevenly distributed, and there are debris or paper scraps under the scraper.

Fourth, the fixing part.

1) Jammed paper or solidified toner blocks the fuser inlet, and the printed product that has not been fixed after transfer and the fuser inlet are worn, and black bars and image damage appear, which can be wiped with alcohol.

2) The surface of the heating roller is poorly cleaned, stained with toner, and black streaks are produced.

The printed paper has black scrambled color stripes, which may be caused by a scraper problem.

There is a shear angle between the cleaning scraper and the drum, which has a large shear force on the drum. In order to have a good cleaning ability between the drum and the scraper, and also need to have good lubrication without damaging the drum without damaging the dam, a layer of lubricating powder is applied to the blade of the scraper.

When the friction of the lubricating powder disappears or is wiped off when it is cleaned, the scraper will form a great shear resistance to the photosensitive drum, which will make the photosensitive drum run poorly, produce jitter, and make the photosensitive agitation not smooth and malfunction. Therefore, special attention should be paid to the fact that the lubricating powder on the scraper should not be removed when cleaning or replacing the drum. The only way to eliminate this failure is to replace the scraper.

Printer Maintenance and Cleaning Tutorial:

Some inkjet printers offer the option to clean the printhead in the driver software, which can be cleaned regularly, manually, or before printing. Although the printing effect can be improved by cleaning the dry wheel of the print head, cleaning the print head is quite ink-intensive. It's entirely possible to set the wipe printhead option to hand wash and then manually clean when we notice a drop in print quality, which saves valuable ink.