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Hp Deskjet 3940 light keeps on blinking fast, and cartridge holder stalled. when i turn on the printer it simply blinks fast then nothing happen even i open the front cover. please help
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It insists there is a Cartridge problem on the Printer............ In this Case take out the Paper from the Paper Feed Tray........ Unplug the Power Supply from the Printer.......... Remove both the Cartridges from the Printer.......... Now take a size 10 Envelope fold it so that it should become like a thin long strip........ Now Insert that Envelope on the left side corner of the Printer and move it from right to left and left to right as fast as u can for about 10 times.......... Now Insert the Ordinary Papers onto the Printer and insert both the catridges and Turn on the Printer...... Blinking Stopped...........Issue Resolved....... Still Blinking: Remove both the Cartridges take a Paper Towel turn the catridges direction so that u can see a Copper plate with small boxes on it....... Just wipe it twice or thrice with the Paper Towel.......... Now insert it and Power on the Printer and see whether the Lights are still blinking if it is still blinking...... Get the Printer Replaced!!!!! Good Luck!!!!!
hello lotsaprint, ipang Few days ago i had the same problem with my hp 3920 color photo printer. All i did is removed the cartridges one by one and the problem was solved. Try removing the color cartridge first, then switch on the printer see i the problem is solved the cartridge contacts must be dirty. clean it with soft tissue (dont use any liquid) and reinsert the cartridge. If the problem persists u may need to replace the cartridge. Check with a new one if u can borrow one from anyone b4 u buy. Repeat the same procedure with black cartridge if necessary. If u r new and need guidance for removing the cartridge, then do the following. 1). Switch on the printer. 2). Open the front cover. The cartridge will now move to the center. 3). Switch off the printer and remove the power cord. 4). push the cartridge gently downwards to detach.
Close the cover when u r done with above mentioned. For more info see the user guide u go with the printer.
two things to consider.
1. If the blinking is fast (like more than two blinks per second) then
the printer is damaged. Either the main controller board is fried or
the carriage/ink controller is damaged.
2. if the blinking is slow ( 1 blink per second) this means that either
of your cartridges is busted. remove the black cartridge then close the
top cover. If the blinking stops, then the black ink is the culprit. If
not, replace the black then remove the other cartridge. THis means that
one of your cartridge needs to be replaced.
This happens when the connections on the cartridge get old. Especially when you refill or buy non HP Cartridges, try buying brand new hp cartridges and you might be able to get a couple refill out of them before this happens again.
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