Re:Car allergic to vanilla ice cream
by janxgeist on Thursday September 21, 2023 @12:45AM
(#37593322)
We had a similiar problem with a label printer.
On some days, exclusively in the morning hours, the printer would fail to detect the start of a new label, printing over several labels.
After connecting remotely and checking the usual (queue, network connection, drivers etc), I asked my colleague to call me, as soon as it happened again.
When I went there, I saw that a ray of sunlight hit the printer.
The windows had shutters, but there was a gap.
Label printers detect the gap between labels using a laser.
And for some reason, the printer's case had a clear window at the top.
I printed an empty label and stuck it on the little window.
On some days, exclusively in the morning hours, the printer would fail to detect the start of a new label, printing over several labels.
After connecting remotely and checking the usual (queue, network connection, drivers etc), I asked my colleague to call me, as soon as it happened again.
When I went there, I saw that a ray of sunlight hit the printer. The windows had shutters, but there was a gap.
Label printers detect the gap between labels using a laser. And for some reason, the printer's case had a clear window at the top.
I printed an empty label and stuck it on the little window.