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Can you tell me where to disable touchpad? I can't find it. My touchpad is messed up, sometimes it messes up so much that I have to turn it off with the power button 🙁 . Thank you!

Can you tell me if my Brother 5100dn printer has horizontal black streaks? I replaced the original drum unit and original ink, but the black streaks still appear. Thank you.

I have a brother HL-B2080dw printer that prints black like this. What's wrong? Please give me some advice. Thanks.

Can you guys tell me if the xerox 3505 printer can be refilled with ink? If so, how do I reset the ink?

My PC suddenly does not recognize speakers or headphones, plugging them in still says not plugged in, what's wrong? The speaker light is still on.

May I ask the technical brothers. The Canon 251dw machine reports the error as shown in the picture, what is the error? I have reset it to the original default but it doesn't work, I have changed the ink cartridge but it doesn't work either. Thanks

The machine says replace toner, reset the ink with the gear and reset the ink with the key but it doesn't work. I hope you guys can help me. I hope the admin will approve my post.

Why do you need to replace the Canon IR2525 fuser? After a period of use, the components in the fuser will be weak and damaged, causing drying errors, black streaks in the print, dirty prints, and continuous paper jams in the photocopier. At this time, we need to replace the new fuser. First...

Canon IR2525 photocopier drum, toner wiper, damaged charging shaft can cause black prints, faint prints, prints with black streaks, prints with faint streaks. At this time, you need to replace the entire drum unit or replace each component in the drum unit. This is very simple if you replace...

Canon IR2525 copier drum unit is a consumable. In a copier, the drum unit has a certain lifespan. After a period of use, the drum unit will deteriorate, at which time it will cause errors when we print or photocopy. Common errors caused by the Canon IR2525 drum unit are blurred prints, black...