Question about HP LaserJet 2550L Printer

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Error message unable to print

What does it mean if there is a red blinking light beside the ! in the triangle?

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  • heartluv26 Jan 07, 2009

    The red light is blinking, and I can not print What do I do??? Please Help

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1.The printer is asking you to manualy load the right size paper.
source tray possibly tray 1
2. The printer has finished printing the first side of a manual-duplexed job and is waiting for the pages to be reloaded so it can print the second side. Reload the pages.
3.you are trying to print to the source (tray) and there is no paper in the selected tray. laod paper trays.
4. The print image is larger than size of paper in the tray. Load the right size paper. Press go Button

Posted on Jan 08, 2009

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You can use EPM(easy printer Manager) or smart panel. These files can down loaded from the samsung site. install and run in the PC it will show the status of the printer.
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The red triangle light with the "!" in it keeps flashing. I've just printed some things off but now it's not printing. Need it to print obviously..


ATTENTION light(triangle): Indicates that the print-cartridge door is open, print cartridge is missing, and other errors.

If ATTENTION and READY light is blinking:

Printer initialization
The printer is initializing.
No action is necessary.

Cleaning mode
A cleaning page is printing.
Wait until the cleaning page has finished and the printer is in the Ready state.
This could take up to two minutes.

If ATTENTION and READY light is on:

Fatal error
Turn off the printer, and then unplug the printer power cord for 30 minutes.
Plug the printer power cord into the power outlet, and then turn the printer on.
If the error persists, replace the printer.

If ATTENTION light is blinking and READY light is off:

  1. Attention: door open, no print cartridge, or media jam
The printer is in an error state that requires operator intervention.
Check the following:
? The print cartridge door must be completely closed.
? The print cartridge is correctly installed.
? There is no media jam.

2. Out of memoryThe printer is out of memory.
The page you are printing might be too complex for the printer's memory capacity.
Try lowering the resolution.

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You can unplug the printer from the wall, then leave it off for about 30 seconds then plug it back in. That should reset the printer, if not read what the message says on the screen, or you may have to navigate through the settings to see the error message.

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When one light from the four lights ring itself changes from green to red, it means that a general hardware failure has occurred or is imminent. Blinking of one red light with an error message like E66, E67, E68, E71, E74 or E77 means a repairable problem while the one red light blinking without error message means some critical or irrepairable problem. The problem can be avoided by restarting the Xbox 360 console but if you have not received any error message with one blinking red light then the problem is irrepairable. The console will behave the same way and you should understand that one or more of the hardware components in your console have stopped functioning due to hardware failure. If you receive an error message with one red light blinking then the problem is reparable and the system will definitely start working. It means that there is some hardware problem with the Xbox 360 console connection occurring due to the misplacing of cables in the ports. Turn off your Xbox 360 and disconnect all cables, now reconnect the cables and switch on the Xbox hope this helps.

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If the lamp is on solid that is a cancel job or reset printer indicator
If the lamp is blinking (flashing) that is the secondary Jam error meaning somewhere in the paper path is a jam. The lamp shoul dbe blinking in a sequense - that sequence indicates what are of the printer the jam is. So the lamp should blink a number of times, pause then blink the same number again.

1 blink - jam in feeder sensor
2 blink - jam in manual feed
3 blink - jam under toner
4 blink - jam in output are
5 blink - jam in tray 1
6 blink - jam in tray 2 (if present/option)

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I have a ML-2510, I turned it on and both the red light and green light flash constantly. Will not feed or print.


The green light blinking means that it is accepting or printing data.
But, the red light is for the error messages. This blinking means there is a toner problem. 1. remove toner cartridge from printer and gently shake to redistribute any that is left, or
2. You simply have to replace the toner cartridge with a new one - this one has been exhausted.

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I thought my printer died on me, but it turned out it was a simple paper jam. The whole printer just locked up because of a paper jam! All I had to do was open the top compartment, remove the toner and get rid of the paper jam

Jul 25, 2008 | HP LaserJet 1320n Printer

1 Answer

Flashing light


Here is what HP has on the subject of the triangle light flashing:
c00028322.gif 1 - Attention Light 2 - Ready Light 3 - Go Light Figure 2: Printer light key c00028323.gif 1 - Symbol for light off 2 - Symbol for light on 3 - Symbol for light blinking
c00028328.gif 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 c00028328.gif 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.

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Thank you. there are some other signs i don't know about.


The black triangle means AUTO, means the fan speed adjust by itself from high-mid-low speed depending in room temperature but the unit is cooling for this function the same COOL mode. Plasma is in the remote control but it never mention in the manual.
If the unit dont cool check your temperature setting and mode setting it should be in cool mode and temperature setting should be 18C. But if still don't cool check some error code like blinking light at the indoor panel check how many blink appears to get the correct error code.. If the light is blinking 3 times it means that the room air or coil sensor is defective.

abc4048.jpg.

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