[Paul-Craft]

I get that that could work and might solve the problem entirely. What I don't get is why you'd ever have to do that every few months.

[mrguyorama]

Laser printers have parts that can get very hot. If their "baking" reflowed the parts, but just barely, maybe those hot parts would just cause the exact same problem all over again.

[Paul-Craft]

Ah! There we go! That was what I was missing. Thanks. It all makes sense now.