My 4521 is only 2 years old and I print about 200 pages per week. There are roller marks on my faxes, it jams frequently (every page we printed yesterday) and the fan is abnormally louder than before recently... is there an easy way to crack open the printer and clean the fan?
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Re: Jamming, roller lines and loud fan
You'll want to purchase the service manual for this printer if you do not already have one. Obviously the fan is the most annoying problem. But the jamming, the roller marks, and other issues would indicate that the entire printer is probably needing to be cleaned out and that the rollers may even need to be reconditioned or replaced.
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Paper Jams are routinely caused by bad roller in the printer. The Heat of laser printers can render these rubber roller pretty useless in a couple of years or less if you print often. If you have recently replaced the drum (according to the recommended print output number), Then If an $80 dollar roller + labor is worth it to you, go for it, otherwise buy a new printer and Brother gives the best ink value per page. hope this helps.
put machine oil on papper roller let run a few pappers intell it gets worked in then see if paper is sticking if this doesnt work blow it out with air in can there has to be papper jamming the papper side.
Reinstalling the printer is related the Software.
If the paper gets physically jammed than its the driver setting issue or hardware issue.
Check if two sheets get jammed or only one sheet.
If it is two sheets than printer is picking up multiple sheets and paper gets jammed.
If the printer is jamming a single sheet than remove the Tray and look there is rubber roller inside if there are marks or lines on that rubber roller or if the roller roller is worn out than that rubber roller called as paper pickup roller need to be replaced.
If that looks fine than try to priny using manual feed and if the problem persists from manual feed too than try another toner cartridge
If the problem is not from Manual feed Tray that Replace the main Tray with known good Tray and check if the issue resolved.
I have the accordion paper jam problem as well, almost all the printout got jammed. So I opened the back panel and unscrew 2 screws and take out the part with the small plastic roller and clean those. Then I also see a rubber roller on the ceiling of that area and cleaned and rubbed them with a damp cloth and rolled them several times. Now it's been 2 weeks of jam free printing! Back to being happy customer...
hp tells me to do the following
does this help you ?
While printing, copying, or receiving a fax, a paper jam occurs. If the jammed paper is removed incorrectly, other problems may occur.
Clearing paper jams
Remove the jammed paper by following the steps below:
Jammed paper must be removed using the rear access door to avoid mechanical damage. Do notremove jammed paper from the front of the all-in-one.
Turn off the HP product and turn it so the back of the all-in-one faces you.
Disconnect the power cord from the back of the all-in-one.
The power cord must be disconnected to allow the paper feed rollers to turn freely and avoid mechanical damage.
Locate and open the rear access door by pressing in on the left side tab to release the catches and then pulling the door toward you.
Figure 1: Removing the rear access door
Inspect the pressure rollers on the rear access door and verify that they are clean and turn freely. Clean the rollers if needed with a soft towel lightly moistened with water. If the rollers do not turn freely, replace the rear access door. Click How to Buy on this page to order replacement parts.
From the rear access door opening, remove the jammed paper.
Remove the remaining paper from the paper supply tray. Discard any paper that is damaged or crumpled and then re-stack and reload the paper into the paper supply tray.
Reinstall the rear access door.
Reconnect the power cord and turn on the all-in-one.
Preventing paper jams
The following information will help prevent paper jams from occurring:
Never use paper that is wrinkled or damaged in any way.
If you are having problems using paper that has already been printed on once (recycling), replace it with fresh paper.
Remove and then reinstall the rear access door. Verify that the access door is fully locked in place. The paper can skew if the rear access door isn't locked.
Every six months to one year, clean the paper feed rollers with a rag lightly moistened with clean water. Over time the paper feed rollers accumulate dust and do not function as well as they once did.
When printing envelopes, tuck the flap into the envelope and crease the folds before printing.