Laser Printers routine fault diagnosis method of
Since Dell, HP, Canon and other brands have been offering low-cost desktop laser printer, small office users to have to give up a lot of ink-jet printer and buy a laser printer, this laser printer because of low cost supplies, printing speed, for only a print black and white document users, if a larger print than black and white printer consumables advantage unfolding before our eyes.
Hewlett-Packard 1020
This small desktop printer market, product to be considered representative of the 1020 Hewlett-Packard, Canon's LBP2900 several of its products, and sales volume of these products great, but after all, is a low-priced products, the use of the chances of problems arising in the process, or relatively large. For the users, to understand the failure appears in everyday use and make rational judgments, you can repair, replacement of consumables in to find the most reasonable options to maximize the use of resources so as to achieve the purpose, the following Hewlett-Packard 1020 I Take an example explain everyday use of such machines in the fault diagnosis.
1, printing paper, big area of the central light-colored, or print a document not
HP 1020's cassette: 12A
Caused such a failure There are three main reasons: One common reason is lack of toner. The printer in use for some time, the toner within the toner storage will focus on both ends, resulting in a lack of intermediate toner, no toner in the state.
In these circumstances, the user can put the printer out of the cassette from the machine, the horizontal holding cassette, gently swaying, so that toner within the toner storage evenly distributed, so that can print 100 or so, when you need it Buy original cassette or for the preparation of the powder added.
In addition to purchasing a cassette, you can also go to the market looking for distributors plus powder, add powder when the attention of the weight of toner, such a small laser printer toner warehouse can be added 125 grams of toner, the price of 40 yuan, there is a business would add 80 grams of toner, in fact, toner price is not high, more common in the more than ten yuan, business skills and earn the point of hardly worth the effort involved.
The second reason is that magnetic stick problem. If the whole sheet of paper did not document, that is printed is not out of writing, and the toner can be judged sufficient, this situation is likely to be magnetic stick problems, stick the end of 1020 there was a magnetic conductive spring, charge with a positively charged, you can Adsorption of negatively charged toner, magnetic stick spring fracture, it can not adsorption toner, naturally can not print. This situation is more rare, mainly in Canada after the powder did not handle this spring, cutting the use of in the future.
Magnetic stick
If there is not the same type of waste cassette, you can split out the replacement spring. Dealers tend to have is purely waste utilization, and dealers pressed the price a few dollars to do 10.
Another optical system is damaged and can not imaging, this phenomenon is rare, if this situation occurs, the machine also scrapped, because the maintenance is too expensive.
2, print the document appears regular black line
Appears black line (or there is a pattern of black points) for many reasons, if it is in the document side, and relatively wide, this may be the magnetic powder smoke stick the end of the gasket is broken, this situation is rare, and above, said the problem is almost magnetic rod spring.
There is also a less common situation is that magnetic stick magnetic material off the surface, this phenomenon is very rare, you can see a clear magnetic stick scratches tend to be more deep, was a circle-like, will appear in print one more time straight black line. Was mainly due to the addition of toner particles within the larger cause.
If the paper on both sides of some irregular black spots, which there are two possibilities, one is the leakage of toner inside the printer too much, the user can remove the cassette, with the hair dryer blowing about using toilet paper to wipe inside to see what a place Alcohol can be solved.
If the black spots are more serious may be relatively large sweep to the blade cassette for Feifen deformation Feifen leaked result. Solutions and the above said the same.
Core cartridge
Another black line appears, a common situation is the toner cassette core damage, core cartridge at one end of a gear, which side most likely to wear and tear, but because of the length of the cartridge is much larger than the width of the paper, so little wear and tear is not affect the use, some merchants like something out of nothing to change OPC, because that can be replaced to continue to change to the following customers. Users can remove the cassette, the cartridge cores cover glass cover lifted from a certain point of view, if there black lines, and cartridge core generally have more significant scratches.
This situation I propose the replacement cassette, if insufficient funds could be given to replacing the alternative OPC, OPC substitute the price of 70 yuan or so, life expectancy around 5000, do not believe the so-called original OPC vendors on the market the so-called original OPC 95% are false, because HP would not produce the parts.
3, print the file appears Takifugu (Watermark)
When printing some regular Fugu, like the kind of case notes watermark. Such a situation is more tragic users, which is generally due to causes Fuser film, the user can print several blank document to see if there is such a phenomenon, the basic question to determine is the fuser film. Fuser film will appear a serious broken situation.
Fuser Film Sleeve
Fuser film close to high-temperature components, because the watermark appears toner, paper and more dirty, the fixing film dirty, and dirt will cause the above occur when printing a watermark. The parts in relatively deep location of the machine, the replacement needs of large-scale demolition, especially the fixing components of complex, practical ability is not strong friend best not to try.
Solution is very simple, is to find an alternative to replace the fuser film distributors, which generally can not buy something original, and Fuser Film Sleeve problems are generally due to a result of the use of non-original consumables, manufacturers generally do not give warranty, factory replacement Fuser Film Sleeve need a few hundred yuan. Alternative nor cheap, with 80 yuan.
Hands-on ability friends can buy the corresponding Fuser film, his replacement, if the fuser film is not damaged, you can use cotton balls dipped in alcohol to wipe, gasoline will do. However, a very easy to wipe clean again watermarks, are more troublesome.
Such low-cost laser printer The most common problem is basically that these are mainly concentrated powder in Canada and the fuser film cassette after the two components. If we can determine where the problem lies in carrying out processing time will be more clear, and will not be dealers an opportunity to fleece.
4, Use and Maintenance Tips
1, do not row a long time to print, preferably by 30 as a unit, and stopped for a while and then print, because the printer to form an internal temperature for a long time print easily lead to localized high temperatures, certain mechanical components are damaged, causing paper jam, but also easy to damage the fragile fuser film.
2, print the document appears printed is unclear, black lines, black spots, cardboard and so on, you can print a blank document to determine the fault. Can create a new blank document, continuous printing 30, see the paper is clean. Note that the printer when printing there usually do not listen to the noise and so on.
3, it-yourself deal with failure or replacement of components, the basic rule is removed the screws can all be up to the machine, which shows not a big issue, the basic components can be fixed. Printer mechanical components of this product are more hands-on ability is not a strong friend is a big problem.
4, cleaning the printer is best to use cotton balls, hair dryer and so on.
5, if the hand sticking out of toner, cleaning the time do not use warm water, because heat will melt toner, melted toner is difficult to clean, wash with cold water and soap on it.
