How do you reset an hp deskjet 840C printer that prints a line of garbage each time? -

I tried unplugging for 20 sec. and that does not work.

go to the computer the quot;Garbagequot; was printed from and there should be a little printer next to the time in the bottom right corner of the screen hold shift and click on it then right click the printing jobs in the window that appears and click cancel Hope this helped

Sounds like you may have a software problem with your computer. Check your printer driver.

you will not restart . on firs clear your paper path then you will recharge or replace your cartridge s