On Tue, 6 Oct 2020 at 03:03, ToddAndMargo via users < users@lists.fedoraproject.org> wrote:
> On 2020-10-05 19:20, Tim via users wrote: > > On Mon, 2020-10-05 at 17:15 -0700, ToddAndMargo via users wrote: > >> I think I am going to replace the parallel port card > >> "just because" > > > > If your parallel port is on a card, then simply removing the card ought > > to show whether *it* is the problem. > > > > Peripherals are a prime area of hardware failure. When you have two > > mains powered devices hooked together, and one or more of them isn't > > earthed, or you connect them together while the equipment is on, it's > > very easy to zap components. They mayn't die instantly, but can be > > weakened. > > > > Peripherals connected between buildings, or even between rooms, also > > suffer the same kind of risk. > > It decides when to poop out. It is not all > that easy to reproduce. > > Basically, it poops out when I need it the most. Run a wire (at least 18 gauge) from the chassis of the PC to the chassis of the printer. This should greatly reduce the chances for the parallel port getting zapped. You might also think about using a more modern interface, with USB to parallel converter or adding a network interface to the printer and disposing of the parallel port. -- George N. White III
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