420i - intermittent C4100

[Reed]

Several months ago this machine came up with a C4100. I ended up replacing the LSU with a known working one out of another machine. It has run fine until about a week ago when the C4100 appeared again. I was able to reset it, but now the customer has called back and said the error has returned. I am going back out today to check the connections on the main pcb. Has anyone else seen this. Thanks in advance

[blackcat4866]

Two other reasons you might get laser codes on Kyocera MFPs are 1) primary charge arcing, or 2) intermittent doorswitches. Check both. =^..^=

[Reed]

Thanks, I was going to check the door switches today but I had forgotten about the main charge. I will take out another just in case.