Marking device video fail - Xerox Phaser 7760/YDX Laser Printer

Here is a link for the Phaser 7760 service manual:

Xerox Phaser 7760 Service Manual


004-350 Marking Device Fail (Controller Video)

1st You download Webcam Driver.
My Camera Install After this install the Webcam driver in the system.
Installation of Webcam Driver
Go to the control panel
Click on the System Icon
Click on the Hardware Tab
Click on the Device Manager s
Select the Unknown Device or printer device where yellow Question Marks sign on it.
Right click on it and uninstall it.
After this go to the top of the device manager and click on scan for hardware changes.
Driver installation Wizard start.
Brows Your Driver from the Hard Disk and click on next.
Driver will be install.
Other Companies Camera Drivers for Windows XP Vista Windows 7

004-350 Marking Device Video Fail

1st You download Webcam Driver.
Installer After this install the Webcam driver in the system.
Installation of Webcam Driver
Go to the control panel
Click on the System Icon
Click on the Hardware Tab
Click on the Device Manager s
Select the Unknown Device or printer device where yellow Question Marks sign on it.
Right click on it and uninstall it.
After this go to the top of the device manager and click on scan for hardware changes.
Driver installation Wizard start.
Brows Your Driver from the Hard Disk and click on next.
Driver will be install.
Other Companies Camera Drivers for Windows XP Vista Windows 7

1st You download Webcam Driver.
HP Webcam software fails / closes
After this install the Webcam driver in the system.
Installation of Webcam Driver
Go to the control panel
Click on the System Icon
Click on the Hardware Tab
Click on the Device Manager s
Select the Unknown Device or printer device where yellow Question Marks sign on it.
Right click on it and uninstall it.
After this go to the top of the device manager and click on scan for hardware changes.
Driver installation Wizard start.
Brows Your Driver from the Hard Disk and click on next.
Driver will be install.

1st You download Webcam Driver.
Picture failed
After this install the Webcam driver in the system.
Installation of Webcam Driver
Go to the control panel
Click on the System Icon
Click on the Hardware Tab
Click on the Device Manager s
Select the Unknown Device or printer device where yellow Question Marks sign on it.
Right click on it and uninstall it.
After this go to the top of the device manager and click on scan for hardware changes.
Driver installation Wizard start.
Brows Your Driver from the Hard Disk and click on next.
Driver will be install.

click start control panel administrive tools computer management device manager scroll down universal serial bus controllers you could see a yellow question mark?

right click to reinstall drivers

if you can see your usb drive but its not working

ports(com&lpt)right click update driver if this fails to fix the problem

check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems for a computer and its parts

click start control panel administrive tools ,computer management ,device manager look through all of your devices if you see a yellow question mark?or exclamation mark ! or red x

right click to reinstall drivers

hope this helps

if your computer came with a motherboard disc the sound drivers could be on it click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers Click start control panel administrive tools computer management device manager scroll to display adapters + to expand you might see a yellow question mark ? or exclamation mark ! or a red x right click select reinstall drivers also

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electic extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and to have an end so any faulty leads will end up with a computer error

Click start control panel administrive tools computer management device manager scroll to display adapters + to expand you might see a yellow question mark ? or exclamation mark ! or a red x right click select reinstall drivers also you might uninstall the display adapter restart your computer then reinstall the display adapter and its drivers this would apply to the sound video and game controllers to hope this helps

click start control panel view devices and printers you should see your webcam from there
if you are have trouble with your webcam
click start control panel administrive tools ,computer management ,device manager scroll down image devices you could see a yellow question mark?
right click to reinstall drivers or update driver
hope this helps

Please check your cable, video settings, video card drivers and your monitor settings.

Also test the monitors on another computer. If they turn on while connected on another computer then your problem is your video card on your problem computer, that's if all else fails. This would mean that you would need to replace your video card.

So let's begin. It's obvious checking your video cable is pretty easy.
Ensure that both ends of the video cable are plugged in nice and tight and secure. Usually this video cable is blue at the ends.

Check your Video Card Driver

Go to your device manager in Windows.
Nagivate to Control Panels/System/Hardware Device Manager in Windows XP.
In Windows Vista and 7, Navigate to Control Panels, System, Device Manager
Look in Monitor and see if there is a yellow question mark or exclamation mark. If there are then right click on them and update the driver. Also while you're in here, go ahead and make sure there are no yellow question marks or exclamation marks. IF there are then go ahead and right click and update the drivers. You will need internet access for this. Follow the prompts to completion.

Let me know if this solves your problem.

Don't forget to give me a good rating and vote for me.