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Transfer roller is a very important part on copiers or laser printers, it’s responsible to pull the toner from the toner to the paper, poor print quality may be caused by improper working of transfer roller , the symptoms include paper jamming, streaking, noise and odor emission. If you notice the symptoms below, just try to recover the good quality same as before. Paper Jamming With time and use, the transfer roller on the copier or laser printer may be in incorrect position, try to remove it and replace it back to adjust correctly to ensure the paper can go trough the transfer roller normally again. If this can’t solve the problem, you probably need to replace a new roller. Paper With Streaking After the printer working for some time, the printout paper may come out with streaking and black spot, it is possible that the roller is not clean and comes with residual toner, use a dry cloth to wipe it gently and don’t use liquid and chemical material to clean the dirt, be...

When you notice the message "perform printer maintenance" on your printer screen, that's the information to inform you to replace the maintenance kit , some parts of your printer is worn and impact the print quality after it was in use for a certain time, maintenance kit is a set of consumable parts for replacement that includes fuser unit, transfer roller, pickup rollers, separation pad and so on. When purchase printer maintenance kit, we need to take some things into consideration. 1. Be sure that the model number of maintenance kit you want to buy is same as the model of your machine, additionally, make sure the kit includes all the parts your printer will need. 2. As all the parts in the maintenance kit mentioned above can not be used forever, that is to said that we would finally have to replace them all in the future, maintenance kits are supplied to save money and time for the users, it will be less cost to buy the set than to buy each single part separa...

Step 1. Turn off the printer power and unplug the power cord and USB cable. Step 2. Open up the frout cover then you can see the toner cartridge, before you can access the transfer roller , lift up and remove the toner cartridge gently out of the printer. Step 3. There is a blue gear on the left end of the transfer roller, use a spring hook to pop out here and lift the left side up then you can pull the transfer roller out of the right slot, so now you can remove the transfer roller from the printer. Step 4. Use a piece of dry and soft cloth to wipe the surface of the transfer roller. Step 5. After cleaning the transfer roller, put it back reversely to the slot and make sure that two ends are in fine position. Step 6. Reinstall the toner cartridge back into the printer then close the front cover, replug the power cord and USB cable, and then turn on the power.

In the past 10 years, so many printer users perform replacement of their printer parts to save money and time, so the laser printer parts manufacturers supply collections of necessary parts for users to do DIY maintenance on their printer, so this is reason why we call this set as printer maintenance kit . The parts included in the printer maintenance kit are usually fuser assembly, pickup rollers, separation pads, transfer roller and so on. -        Fuser Assembly: a component to be responsible to fuse and fix toner onto the paper. -        Separation Pad: help the pickup rollers to tug a single sheet of paper and separate it from other. -        Transfer Roller : an electrically charged roller to transfer toner from the drum to the paper. -        Pickup Roller: also named feed roller, are used to pick up the paper from the paper tray and feed it to th...

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 ...

Sometimes you may be able to solve the common problems yourself in your laser printer if you know a little about the structure inside it, such as paper jams due to improper positioning at the transfer roller. Before the printing process at the fuser assembly , the paper has to pass through the transfer roller inside a laser printer that is used for transferring toner from the cartridge drum onto the printing medium. It works with opposing electrical charges to pull the toner particles. Paper jams usually occur at the image transferring process, if the paper get stuck at the transfer roller, just open up the side cover and pull out the paper gently, don't touch roller surface without gloves when hold the ends of the roller, as the sweat and oil of your hand can pollute and damage the surface material.