MPC4502 "overheating"

[slimslob]

Re: MPC4502 "overheating"

You are correct in assuming that if it "overheated" it would pop a code. As long as the fuser is turning, everything should be fine.
On this model, if the fusing exhaust fans are not working, it usually pops a code for that too.
You can check fuser temps in SP mode, and adjust them down if they're set higher than default, and you can physically show the customer what temperature the unit goes up to, and back down to, so as to give them some clarity that, "Yeah...these things get hot, that's part of the process".
If there is toner residue and such in the fan ducting, clean those out and see if that makes any improvement.

We've had too many machines to count that get the discolored covers, and a lot of customers that think "the machine is too hot, I hope it doesn't start a fire", or the customers who are baffled as to why their paper comes out hot. LOL!

I'm gonna say it's probably "all in your customer's head". Never once have we had a machine "overheat" without throwing a code.

Random story:
We had a C305 in our shop a year or so ago and were trying to nail down an add toner issue that wouldn't clear (never cleared), and while testing it, one of our techs kept getting a fuser code because it wasn't plugged in (machine was severely torn apart.....so he took the harness for the fuser off the machine and plugged it into the fuser sitting next to the machine and when he turned it on, it melted the fuser rollers together due to not having the drive to turn the rollers.
This is literally the only time I've seen something like that ("overheating") occur.

I had a customer one time that had been told how to clear a fuser code. So one day they had an impatient employee who want to make his/her copies as soon as possible. When the machine coded, he/she reset it and stood there waiting. When it coded again, reset it again. Repeat until it had overheated to the point of melting the pressure roller to the hot roller.

[tsbservice]

Re: MPC4502 "overheating"

I had a customer one time that had been told how to clear a fuser code. So one day they had an impatient employee who want to make his/her copies as soon as possible. When the machine coded, he/she reset it and stood there waiting. When it coded again, reset it again. Repeat until it had overheated to the point of melting the pressure roller to the hot roller.

Good story slim. It comes as remind to all of us. Customers good or bad eventually ALWAYS find their way to sc.w technology and consequently us.

[tonerhead]

Re: MPC4502 "overheating"

I have had several customers complaining of hot smells. Turns out they were doing long runs of nearly 100% coverage on b/w. Just saying.....

Have you checked the pressure roller thermistors? Ok? One last thingy that might cause an issue. Is the fuser sleeve the correct one? An MPC3002 sleeve in a MPC4502 might cause this.

[dalewb74]

Re: MPC4502 "overheating"

had a customer complain of smells from the copier. turns out nothing wrong with the copier. just an old building and the smell was coming from the ancient AC vents. it was terrible, i smelled it. i figured it out because once i walked out of the office i could smell it in the hallway as well. just an idea something you might wanna consider could be the issue.