my HP Laserjet 2055d leaves two black marks at the back of the printouts.

i have completely replaced the pickup assembly unit but with no avail.

anyone can help

but just wanted to let you know that i have already tested several toners.

i also have completely replaced the whole pickup assembly picture attached.

and have cleaned all the rollers inside the machine.

A power bank was dropped on my mobile phone in the upper right corner and first the half phone display was not seen and later the mobile whole screen appears black but sounds comes when I use the volume button and power button

why does my Frigidaire microwave keeps tripping the circuit breaker

I have a ds4 controller that works via Bluetooth but is unable to work with a wired connection to the PlayStation and pc. I figured the port wasn’t working so I decided to swap the port with another controller whose analog sticks are broken. This new port works perfectly but when making the swap, the controller still doesn’t show up as a wired connection.

I can provide pictures or answer any questions to help troubleshoot this issue. At this point I’m more intrigued on how to get it working than anything else. Any hardware that I should be looking at that could be the culprit here?

Worth noting: Since the wired connection wasn’t working, i decided to download ds4windows to see how the Bluetooth connection to the pc would hold up vs input lag. During this process, I was changing settings on ds4 along with the controller device in my pc control panel. I disabled a driver that a video recommended during this. Not sure if I might have done something to alter the controllers ability to recognize the wired connection.

Thank you!

This has been solved. Needed to get the correct usb connection for the controller model. Ordered this online and now the controller works fine.

Hi,

My battery life is pretty awful. Is it possible to replace the battery in this model?

I can't find anybody who has done it.

Thanks!

Hi everyone,

We bought an Epson Home Cinema 1080 3LCD projector that keeps turning off because it constantly says it’s overheating, even when it’s cool to the touch. We cannot take it to Epson for warranty, and I’d like to fix it myself. I can’t find the parts online, so if there’s any other temporary fix I can do I’m also open to suggestions. So far people have said “just buy a new one” but I don’t have another $800 to dish out at the moments. Thanks!

HDMI does not work but VGA works.ive changed port but no avail.schematics highly will be helpful