Question about HP J3680 Officejet All In One Printer
the flashing light means theres a problem with the installed cartridge. make sure the cartridges are of the same brand/model (check on the cartridge number on the sticker of the cartridge). shake it away from you too then put it back in, make sure you hear the snap sound meaning its locked into place. ive posted the link for manuals, support aswell if you need it :
Posted on Apr 07, 2011
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Posted on Jan 02, 2017
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Feb 11, 2016 | Canon PIXMA iP3500 Printer
Oct 07, 2011 | HP J3680 Officejet All In One Printer
has developed incompatibility or is incompatible
The Solution is to try an older/another cartridge (doesn't matter if ink
is finished. You must replace cartridge one at a time). If lights stop blinking
it confirms that your cartridge has become incompatible or developed
incompatibility. Also if your printer is the type that can work with only one
cartridge, remove one after the other (closing back the lid/cover) to determine
which in the set (black or color) has become incompatible. At the instance the
incompatible one is removed and you close the lid, the blinking will stop (for
printers that can print with one ink cartridge only). Just replace the
incompatible one and start printing again. In most cases the issue is always
with one cartridge. But if both are affected, you have to replace both. Because
of this type of problem, always keep used cartridges somewhere safe; they come
in handy for this type of troubleshooting.
electronic panel is dirty
The electronic panel on the cartridge that makes contact with the
cartridge carrier inside the printer is dirty and needs cleaning. This electronic panel is front part of the
cartridge with copper "dots".
The Solution is to try to clean this panel with a piece of folded tissue paper soaked in a bit of methylated spirit. Also try to clean the area in the cartridge carrier/holder that makes contact with the cartridge's electronic panel (Usually this is more difficult). If you cannot reach it with your fingers, use a stick or something with tissue wrapped around it. Allow to dry well and return the cartridges, close the cover. The blinking should stop if the electronic panel is the issue. Once the blinking stops the printer will print.
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