I've run across this issue recently on two of these. The printer will randomly give a "Check cassette 1" error. I found a post somewhere about stretching the springs for the feed roller and separator rollerd, but I did that. Everything seemed good when I tested, but the calls came back.
I did some digging and found a retired coworker tried a bunch of things to resolve the issue, but nothing worked permanently. He replaced all the rollers, some springs, the sensors and flags for tray 1, the cassette itself, and the feed drive assembly. He also replaced the paper size sensor.
I did some digging and found a retired coworker tried a bunch of things to resolve the issue, but nothing worked permanently. He replaced all the rollers, some springs, the sensors and flags for tray 1, the cassette itself, and the feed drive assembly. He also replaced the paper size sensor.
Comment