Question about HP DeskJet 6840 InkJet Printer

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Will not print

Power light and orange arrow flash all the time and when I open the the tool box it says "Mechanism Error, print cartridge cradle cannnot move". I've inspected the unit completely and have found no paper or other jams. I've rebooted my computer and the printer. Please advise.

Steve

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Try moving the cartridges with the power cord unplugged. Your problem sounds fatal.

Posted on Jan 16, 2009

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Please refer below for detailed troubleshooting of the specific condition:

PRINT CARTRIDGE light RESUME light POWER light Blinking Off On c00106873.jpg c00106862.jpg c00106865.jpg Problem

The printer top cover is open, or there may be something wrong with the print cartridge.

Solution

  1. Close the printer top cover.
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Plug in and turn on the printer and see if the carriage returns to the left and reseats itself in the capping station. Close up the printer.

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Both lights are blinking and will not print


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You will need to perform the following steps to find out which cartridge is defective:


1. With the printer turned ON, open the front cover and remove both cartridges from the printer.
2. Power the printer OFF and unplug the power cable for 30 seconds. Plug the power cable back in and turn ON the printer.
3. If the error message is now cleared from the printer, please perform the "Self-Test" by following the steps below:
{
1. Make sure the printer is in “Copy Mode.”
2. Press the “Menu” button once.
3. The screen will display “Copy Menu: Copies”.
4. Press the left arrow button once. The screen will display “Copy Menu: Tools”.
5. Press the check button once. The screen with read “Tools: Maintenance”.
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8. Press the check button once. This will start the Self-Test. Once the page has printed, the printer will stop. The test is not continuous.
}

If the printer has detected a "Cartridge Missing" error, then please follow the steps given below:

1. Turn the power OFF.
2. Open the front cover.
3. Turn the power back ON. The print cartridge carrier should move to the install position located in the middle of the printer. If it does not, close and reopen the cover:
4. Reseat both cartridges in the printer and check for the error.
5. If the error still displays, then remove the color print cartridge.
6. Close the cover.
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8. However, if you continue to get an error, repeat steps 1-3, and then go to step 9.
9. Remove the black print cartridge and reinsert the color cartridge.
10. If there is no error indicated by flashing lights, the black cartridge has short-circuited.
11. If you continue to receive an error in both cartridge scenarios, both print cartridges have short-circuited.

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1 Answer

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1 Answer

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2) If the CHARGE/ERROR light is flashing orange with beep 3 times, it mean your cartridge need to be install (especially the 1st time turn on printer) or cartridge being replaced, just install the cartridge and press RESUME to continue.
3) If both POWER light is flashing green and CHARGE/ERROR light is flashing orange with beep 3 times, then your printer may facing a very serious error and maybe need a replacement.

Hope these help.

YBC (/\)

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