Laser Hot-roll routine maintenance

Hot roll in ordinary work, is also a relatively easy damaged parts, of its damages is primarily a special surface coating, once the wear and tear, it will be glued to the top ink or dirt, so that the output of the comp on a word or Figure lack of lines, and also in other parts of sticking a blank black block, which is for the average manuscript may just be able to use, while for more demanding of sulfuric acid used in the printing paper for can not be used in. In this sense, the hot-roll a good routine maintenance is mainly to protect the surface coating is not compromised. Therefore, we usually work should pay attention to do the following:

(1) must be careful not to roll with a sharp object to scratch fever, especially in the jam, we should note carefully the paper out of its stuck, mainly with the operation of the machine itself will be stuck tape out of, or Open the lid, and then hand turning gear, so that paper out, try not to hand a hard pull, but can not use screwdriver, tweezers and other objects in order to facilitate barrel in order to avoid coating damage.

(2) usually pay attention to hot roll clean. No matter what type of laser printers, due to thermal roll paper, toner, which frequently from the hot roll over, though it itself is non-stick ink, but inevitably there will be some dirt (such as the excess toner, paper powder ) glued to the above, it is necessary in a timely manner to clean up, clean up the power to be switched off, so that after cooling the machine apart carefully cover with a cotton stick more to clean water will get rid of their filth, above, pay attention, do not use some organic solvents, so as to avoid damage to coating. In addition, special attention to clean contact with the heat roller separation claws, claws often a result of separation would be tainted with dirt, and in the heat roller separation claws work is always in contact with the hot roll, and if any dirt, it will have friction heat roller, multiple friction coating will be damaged, therefore, repeat it after a certain time is necessary to clean a separation claws.

Incidentally, I am here to tell us about the original Canon LBP-SX and LX models, hot rollers 1:00 enhancement. As the original of this Canon laser printer thermal switch and thermal resistance is placed in the middle of hot roll, and its thermal hot roll switch position and almost hit, after a period of time after use, thermal switch on the metal (Outside of the film is very easy to damage) the shell will be tainted with dirt and was alternating hot and cold a long time to become very hard, so a long time contact with the hot roll friction, it is easy to put the hot roll surface of the coating mill out, so that heat roller is damaged, then I through the analysis, we found unnecessary and thermal roll thermal switches are too close, because its switch is determined by the thermistor, while the thermal resistance must be guaranteed with the hot roll the distance to ensure that the correct hot roll temperature, but heat-sensitive switch can leave hot roll, and its distance to the heat roller temperature has no effect. Therefore, I would Fuser removed, open the lid, the heat-sensitive switch spring copper compaction, the switch and pull away from hot-roll, it does not run into hot roll, through the installation of an improved test with good results, not only does not affect the original fixing effect, but also avoids the thermal switch will be hot roll wear problems, while the thermal resistance due to relatively soft, easily damaged hot roll, thus greatly extending the life of the hot roll.

(3) the use of qualified paper. Laser printers used in the paper have a certain specification, it is generally 70 to 100 grams of offset paper, usually we have to make full use of the appropriate paper (normally the majority is to use 70 grams of the two-sided offset paper), do not use too thick of the paper and coated paper are not suitable, because thick paper is not only not easy to export, but also force the heat roller separation claws in many irregular move, even separating the top part of barbed claws to the hot roller, damaged plating membrane. Therefore, if customers have special requirements, made it clear to him the reasons, do not take such a business, so as to avoid more losses than gains.

(4) to extend the life of a hot roll approach: today's laser printers have been regarded thermal switch and thermistor installed on the edge does not affect the output, avoiding the hot roll by their wear and tear faults. Therefore, it is heat roller separation claws and their damage is mainly caused by friction. A place to avoid its long-term friction, consider the use of a period of time after hot roll off heads, because the hot-roll itself, the above has no specific structure and components, the difference between both ends of the gap to just one end of a transmission only.

Therefore, as long as the other end also used FILE grind a similar gap can be, and that heads off after the heat roller separation claws and the contact area will be all changed, thereby avoiding friction in the same position from start to finish the shortcomings, I have been in use this improved and extended service life of hot roll. Interested parties may wish to take a try.