Recently my Desktop quit printing to both 7740 printers. I re installed the software from HP more than once. Problem started after I installed the HP Smart App. The laptop Win 10 box prints to both but does not have HP Smart Installed. I also note that HP Smart is advertised as an software driver installer, but do not see that option in the program. Unless someone has a solution where HP Smart is installed on my desktop machine, I will try to re-install 7740 software without HP Smart.
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