There is a red light flashing beside the triangle symbol on my cannon lbp5050n. What does this mean?

Question edited for clarity.
Question moved to a better category.

Hello Maurice
questions like this really need to model number of model name. Doro make lots of flip phones. There are various ideas here in the links below.

Remove battery to reset.
Your data usage is exceeded.
The text wasn't sent.

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What does the red triangle mean beside my "sent message?

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Oct 5, 2015 · 3 posts · 3 authors
As keyree said, it means the message has not been sent. You should be able to tab the message and hit resend or retry. 10-06-2015 03:50 AM.
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How to remove the triangle with exclamation mark ... - AskingBox

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Oct 31, 2013 - The symbol "triangle with exclamation mark" in the status bar is a common symbol for a warning. In your case, that is the data usage warning.

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The red light mean low toner , or you have to replace the toner sensor

Canon printer light blinking error is a common error. Each printer features a flashing light to indicate its functionality. With Canon printers, you have flashing green and orange lights to inform you of any existing problems. It is suggested to carefully observe the number of flashes or the pattern of blinking lights as this will help you to understand the problem. And depending on the pattern, you can follow our canon printer troubleshooting guide mentioned below to solve that issue.

What does triangle with lightning bolt mean on Canon printer?

The orange triangle with the lightning bolt comes on when the printer is plugged in. The white light above the power button is on, but the printer is otherwise dead.

What does the orange triangle mean on my Canon printer?

When a printer error occurs, the Alarm lamp flashes orange as shown below. The number of flashes indicates the type of error that has occurred. Count the flashes and take the appropriate action to correct the error. Power Lamp Flashes Green.

What does the triangle symbol mean on my canon printer?

Seeing a yellow triangle with an exclamation mark usually indicates that a hardware device needs to be updated. If you are seeing the mark in Device Manager, we recommend checking the device status of the printer driver.

What does the flashing yellow light mean on Canon printer?

When an error occurs in printing such as the machine is out of paper or paper is jammed, a troubleshooting message is displayed automatically. Take the appropriate action described in the message. When an error occurs, the Alarm lamp flashes orange and a Support Code (error number) is displayed on the computer screen.

Are you using fine ink cartridges? Is your printer still working normally besides the flashing lights?

Look in your owners manual

Can also find those symbols on the internet

From left to right:
(Lights)
Exclamation point: Error
Weird Monitor beat symbol: Jam
Paper: Out of paper
Toner (Triangle leading down to dot pyramid): Toner refill
Lightbulb: ready

(buttons)
Greenish Play button (square with triangle): Continue
Red button with x: Stop/Cancel
Dell 2230 User Guide Page 1

{: ) The car-inside-triangle symbol is the Stabilitrak indicator and a wrench beside it means that a fault was detected on the Stabilitrak system of your vehicle and need servicing.

Hi,

It´s the descaling indicator, you need to descale the machine.

Here is what HP has on the subject of the triangle light flashing:
1 - Attention Light 2 - Ready Light 3 - Go Light Figure 2: Printer light key 1 - Symbol for light off 2 - Symbol for light on 3 - Symbol for light blinking
Door open, media out, no print cartridge, or media jam

The printer is in an error state that requires operator intervention or help. Check the following:

• The print cartridge door is completely closed.
• Media is loaded.
• The print cartridge is correctly installed in the printer.
• There is no media jam.

Figure 8: Paper jam 13.JJ.NT JAM IN TRAY 1

13.JJ.NT JAM IN TRAY X

The Attention LED is blinking. Check paper loading then open and close top cover.

When there is a jam in tray 1, verify the paper is loaded correctly, open and close the top cover. Pressing GO is ignored.

When there is a jam in tray X, verify the paper is loaded correctly, open and close the top cover. Pressing GO is ignored. These are the error explanations for just the flashing triangle light, there are many more, but none for just the flashing triangle.

If the light pattern is different let me know (other lights on as well)
-Hope this helps.

it means you have no back up battery installed to save time/date info. I know on the GL2 if you open the LCD screen there is another small plastic tab you can open and insert a relatively small battery. Do it and the icon will disappear. Otherwise its no big deal. If you dont need time/date stamps on your tapes then there is no need to install the battery unless you are just annoyed.