MPC2500 fuser problems

[kurnal]

Hi All
More problems today.
The MPC 2500 was doing a small print job when I became aware first of a rustling crumpling sound and a smell of overheating. It then stopped printing with the SC553 error code.

Reset the code and switched back on, again the same results.

Had a look at the fuser and the fusing belt has an area of crumpling/ dimpling about 70mm wide opposite the thermistor all the way round the belt and its these crumples that are causing the noise. I assume that the thermostats have failed causing the heating roller to overheat and causing damage to the belt.

My question is whether its worth trying replacement parts- thermostats/ lamps/ fusing belt or looking for a new fuser assembly or put it in a skip and buy a new photocopier. I paid £650 for it a year ago. If it wants £500 spending on it I may as well cut my losses.

Serial no L3683700586 counts are total colour 53714, B/W total 176536.

As always your advice will be gratefully received.

And dsdigitalprint I will be calling you next week if the consensus is for a repair.

Many thanks

Alan

[ruben]

Re: MPC2500 fuser problems

You will only need to replace the fusing belt. I would also recommend replacing the pressure roller bearings, the heating roller bushings and bearings.

[Eric1968]

Re: MPC2500 fuser problems

And dont forget the Oil Supply Roller and the Cleaning Roller.

[JustManuals]

Re: MPC2500 fuser problems

This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:

http://www.justmanuals.com

Paul@justmanuals.com

[kurnal]

Re: MPC2500 fuser problems

You will only need to replace the fusing belt. I would also recommend replacing the pressure roller bearings, the heating roller bushings and bearings.

Thanks. Am I right in thinking a thermostat problem is the likely cause of the overheating? Should they be replaced too?

[slimslob]

Re: MPC2500 fuser problems

Thanks. Am I right in thinking a thermostat problem is the likely cause of the overheating? Should they be replaced too?

Thermostat no. Thermistor and thermopile yes. Either bad, dirty, or out of position.

[Eric1968]

Re: MPC2500 fuser problems

Thanks. Am I right in thinking a thermostat problem is the likely cause of the overheating? Should they be replaced too?

The thermostats cut the power from the fusing unit when the temperature reaches 210 or 220 degrees Celcius to prevent damage to the machine. The thermistors control the temperature and tell the machine when to switch on/off the lamps.

[kurnal]

Re: MPC2500 fuser problems

The thermostats cut the power from the fusing unit when the temperature reaches 210 or 220 degrees Celcius to prevent damage to the machine. The thermistors control the temperature and tell the machine when to switch on/off the lamps.

Thanks for that. I could smell overheating and the belt was damaged so it probably points to defects in both the normal control system and the over temperature controls. Wouldn't be much fun to replace the fuser for the same to happen again! That's why I shall be asking a pro to fix it for me if I can.

[TonerMunkeh]

Re: MPC2500 fuser problems

With these fusers the last thing you want to do is skimp on parts, regardless of how much it costs. Get the tech to rebuild the ENTIRE fuser, including belt, hot and pressure rollers, bearings, bushings, oil supply/cleaning rollers and thermistors. That way, if you keep refreshing the oil supply roller approximately 150k, this fuser will run for at least 400-500k.

[Dhearn]

Re: MPC2500 fuser problems

Use PMB230160k Pm kit for the fuser

[kurnal]

Re: MPC2500 fuser problems

Thanks to all for your good advice as always. Please would any competent tech who contributes to this excellent forum and is prepared to take on this repair for me along with any future servicing (we are located between Matlock and Bakewell, Derbyshire) please give me a call on 078-76-545-705 delete the -. I could take out the fuser assembly and deliver to you by courier for rebuild provided you come back once it is done to check the machine over.

[kurnal]

Re: MPC2500 fuser problems

Thanks to all for your good advice as always. Please would any competent tech who contributes to this excellent forum and is prepared to take on this repair for me along with any future servicing (we are located between Matlock and Bakewell, Derbyshire) please give me a call on 078-76-545-705 delete the -. I could take out the fuser assembly and deliver to you by courier for rebuild provided you come back once it is done to check the machine over.

[sandmanmac]

Re: MPC2500 fuser problems

Long periods of non-use of these machines will cause the rollers and belt to become deformed since they're under constant pressure -particularly if they're kept in a cool environment. I've seen more than one belt shred, when it's been powered up after several months of non-use.
I'd recommend removing the unit from the the machine if it will not be used for an extended period.

[Gift]

Re: MPC2500 fuser problems

That`s totally odd - an entire new fuser should last way more time/prints. You're shure it was brand new and not some sort of refurbished stuff?

When we refurbish the fuser we like cutting some corners here and there but usually swap the press roller thermistor even if it's not part of the "official kit". On most MPC2500 fuser you'll notice that the thermo element (a little black spot) loosen from the teflon-coated metal plate leading to bad readings.

[Klydon]

Re: MPC2500 fuser problems

Sand has it likely right.

Some questions for kurnal: On your small job, is this going on normal paper or would it be a different type of stock or thickness? If different from normal paper, are you changing the settings on the machine to reflect what you are printing/copying on?

The fusers for these machines are good fusers and will last quite a long time in most cases from what I have seen and experienced.

Since you are at another decision cross roads, I guess part of the question is how much use you think the machine may get over the next year or two. This machine model is getting long in the tooth and I don't know how long before parts availability may start creeping into the equation. In addition, if you are not running much volume, you may be able to downsize on your next machine (get a newer/smaller machine).