跳至主要内容

How Is The Image Printed On The Paper

There are so many laser printer parts inside your printer, the toner cartridge has two main components, one is the drum and the another is hopper. The drum begins to turn around when the printer starts to run, its surface charges with negative electricity from a charge roller. The drum has a  layer of sensitive coating on the surface, it gets hit by laser beam and as it turns. As the laser radiates the drum line by line for million times per second, it releases the electricity to create more non-electricity spaces, until they finally form an same image as the document right on the drum, just outside the hopper, there's a roller that gets covered with toner particles as the drum turns past this roller, the toner has no choice since the toner carries a negative electricity to be attracted to the non-electricity spaces on the drum, at the same time, the toner is repulsed by the negative electricity that cover the rest of the drum, so the toner only sticks to the spaces hit by the laser, now the toner forms a same image of the document on the surface of the drum, furthermore, the printer is charging a piece of paper with positive electric charges, the rolling drum carries its toner image down onto the paper, and this is for pulling the toner off the drum to attach onto the page, now the image of that text is on paper.


The last process but not least, the paper need to pass through the fuser assembly, there’s a roller inside to heat up to 200 degrees Centigrade to melt the toner particles and fix onto the paper to finish a printed page.
标签：

评论

发表评论

此博客中的热门博文

Process Of Applying Grease in Fuser Film Sleeves

Fuser grease is made of silicone oil for lubrication, and it also has excellent performance at thermal conductivity to assist fuser film sleeve to conduct the fusing process. Just like other laser printer parts, we need to replace the grease with use and time, proper operation is very important to be careful when installing, otherwise your fuser film sleeve will be damaged and scrapped totally. Hope the following instruction can be of help to you. Step 1. Detach the fuser assembly and remove the used fuser film. Step 2. Use alcohol to clean the surface of heating element. Step 3. Use soft spatula to scoop up grease from the container, total applying amount is around 1 gram. Step 4. Place the spatula at an angle on the surface, and wipe evenly the grease over the surface of heating element with forward and backward movement. Step 5. Put the heating element into the fuser film sleeve, and the end of the film with ground ring should be in good contact with the surface of lo...
发表评论
阅读全文

Replacing Fuser Assembly For HP LaserJet P2055 - Part 2: Reassemble The Fuser Unit

Previous part we talked about disassemble the fuser unit on the HP LaserJet P2005, this time I'd like to show you how to reassemble this component. As I showed you last time, there're so many screws need to remove before you can access the fuser assembly, and conversely we need to fix them one by one on the machine after replacement, so that will take you some time to do finish. On the side of the fuser assembly , there're some driving gears that we need to pay attention of, some cutouts on it have to be in right position when slide back into its socket. Let's go ahead to reinstall the repaired or new fuser unit, don't forget to fix the screws, we got two on the left side, one at the top left and then there's one down at the bottom, and then put the metal plate on and make sure it can be fit to the left and right sides, fix it with the screws then, okay at this point in time what we can do is plug in all the wires, just don't forget to retrack the wir...
发表评论
阅读全文

Replacing Fuser Assembly For HP LaserJet P2055 - Part 1: Disassemble The Fuser Assembly

When replacing fuser assembly for your HP LaserJet P2055 printer, you can actually get this done by yourself to save your money, but it requires some time and tools, and it would be better to do it at a good work place with good light. There's a lot of processes for this work, so today I'm going to show you how to disassemble the fuser assembly. Sometimes you still have some print quality issues though you replaced the toner, such as that the paper comes out with loosen  toner or some flaws, that's part of the fuser assembly or the sleeve, so we need to know how solve the problem with the fusing unit, before we replace a new one, just need to remove the old one, but it's definitely not too easy to do it by yourself. Let's get started with a philips and a flat blade screwdriver, and a pair of nipper pliers also, turn off the power button, open the font cover plate to remove the toner cartridge inside, use the flat plate screwdriver to remove the co...
发表评论
阅读全文