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A computer monitor has a front-mounted LED that displays its current status and flashes in the event of an error. When an error occurs, the flashing may be accompanied by an error message on the screen. If the screen does not display an error message, the problem most likely falls into one of four common categories.
Unsupported Display Mode A video card has the ability to send output to the monitor at many display resolutions and refresh rates. However, no single monitor is capable of supporting every possible display mode. When the video card sends an unsupported display mode to the monitor, the monitor shuts off to prevent damage and blinks, or displays an error message. Standby Mode b> When a monitor detects no video signal from the computer, it assumes that you have turned the computer off and enters standby mode to reduce power consumption. Dell and HP monitors display an amber light when in standby mode. The status light on an Apple monitor blinks slowly. Incorrect Power Supply Some monitors such as certain Apple Cinema and Studio displays use external power adapters. Because different power adapters may have similar connectors, these monitors are designed to detect when an incorrect power supply is connected and blink the status LED rather than attempting to turn on. In the case of an Apple display, the LED blinks in an alternating short and long pattern. b> Backlight Failure b> A flat panel LCD display has an LED or fluorescent backlight that illuminates the pixels and makes it possible to see the contents of the screen. If the backlight fails and requires replacement, the monitor is unable to display any information. In some cases, you may be able to resolve this issue by turning the monitor and computer off, disconnecting and reseating all cables. If the monitor still has a backlight issue, it requires professional service.
Hi, What is the error light
Step one: Identify the specific printing problemIf
your All-in-One won't print, first you need to identify the specific
issue or symptom. What exactly happens when you try to print? Do you
see an error message or do the lights on the printer start blinking
(flashing)? Does nothing happen at all? Follow these steps to identify
your unique printing issue before troubleshooting. If you can identify a symptom based one of these methods, make a note of the symptom, and then continue to the next step.
Method one: Look for blinking lightsLook
for any blinking lights on the front or top of the All-in-One.
Sometimes just the power button can blink, or a small indicator light
on the printer can blink, or a combination of buttons can blink all at
once.
Example indicator lights on the printerAttention lightsWireless indicator lightCartridge lightsError LightsExample blinking lights patterns Method two: Look for error messagesPrinting
problems are usually accompanied by an error message of some sort,
usually on the control panel display (if your All-in-One has one), or
on your computer monitor. Check both places for specific error
messages. Error messages might or
might not be accompanied by an icon representing the error. Following
are some examples of error messages you might see on your computer
screen or control panel display.
'Printer is Offline
'
'Align Cartridges
'
'E
' (error condition)
'Document(s) pending
' (Roll your mouse over the product icon in the lower-right corner of the computer screen.)
Hi, This message appears when the loading tape path become misaligned (mechanically unstable). Your camera just need mechanical adjustment from any expert and it will work fine again. Contact any service man for this. Thanks for using fixya.
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