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How To Replace Transfer Roller For HP LaserJet 4250 4345 4350 Printer

Firstly just first show you where is the transfer roller in your HP 4250/4345/4350... , make sure if the power is off and unplug the power cord, lift up the top cover to remove the toner cartridge and than you can see the transfer roller, hung over under the cartridge. at the left side of the roller, use the blue spring hook in your maintenance kit to catch the metal edge near the blue gear and pop the left end out, after lift up the left side of the transfer roller, slide out its right end from the white circle that hold the right end, and than you can take it out of the cabin.


After take out the worn transfer roller, get a new one ready, put the right side without blue gear into the white circle, and than left hand side (with a blue hear) has a black stand, position it face down to place into the left side of the base, and than press it down gently until you can hear a snap, so the transfer roller replacing is done, after that, reinstall the toner cartridge back and turn the cover back on, that’s it.
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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...
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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...
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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...
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