Question about HP Deskjet F340 All-In-One Printer
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Posted on Jan 02, 2017
SOURCE: Red toner light flashing
Dear sir; CH appears on the window means somewhere the door didn't close, when you close all door the red light will be disappear. try it out and let me know if you need more help, good luck, DON'T FORGET GIVE ME A RATING, THANK YOU , HAVE A HAPPY HOLIDAY !!!
Posted on Dec 22, 2008
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