Ricoh 3245 sc-542

[Polo-022]

This code appears every morning after "switch on". Then, after resetting the code through diagnostics, machine goes "Ready". It goes to save energy /sleep mode and wakes up without any other fault during the day.
I replaced fuser unit to duplicate for a faulty thermistor, with a good one.
Next morning, the same..
M/c is connected to a dedicated power line.
There are no paper obstructions in fuser connectors.
Does anyone have faced something similar?
Thanks for any input...

[category_five]

M/c is connected to a dedicated power line.

Is that like a home run to the breaker?

[category_five]

Is that like a home run to the breaker?

You know where I'm headed with this. Regular SC542 can be caused by brown outs. Especially during warm up which is a heavy power draw. Even more so if you changed the fuser already.

Other than that I'm thinking a faulty board or power pack/power supply, or shorting to the chassis somewhere. You really don't want it to be any of that. We're talking break out the point to point diagram pull out the multimeter and start ordering boards.

Take a look at everything plugged into their electrical circuit and everything they turn on in the morning. Heaters are the heaviest loads on an electrical system. I hope for your sake they're just browning out their power lines with space heaters.

[Brave Hart]

This code appears every morning after "switch on". Then, after resetting the code through diagnostics, machine goes "Ready". It goes to save energy /sleep mode and wakes up without any other fault during the day.
I replaced fuser unit to duplicate for a faulty thermistor, with a good one.
Next morning, the same..
M/c is connected to a dedicated power line.
There are no paper obstructions in fuser connectors.
Does anyone have faced something similar?
Thanks for any input...

I had the same problem on the same model number, never found the problem behind it, I changed everything inside the fuser that could be changed, even the screws with the lock washers, and put normal screws in, to no avail, I changed the fuser unit and still it did it every morning and like you said, the rest of the day it runs fine.
I eventually convinced the sales man to sell the client a new machine, and Walla my problem was solved.

Good luck thats all i can ad.

[Eric1968]

Sounds like power trouble, like category_five mentioned. Try connecting the machine to another power source. I don't think it's a bad power supply.

Is the machine close to an airconditioner? When cold air is blowing near the machine, you can also get these kind of fuser errors.

[Jomama46]

Sounds like power trouble, like category_five mentioned. Try connecting the machine to another power source. I don't think it's a bad power supply.

Is the machine close to an airconditioner? When cold air is blowing near the machine, you can also get these kind of fuser errors.

This was my idea too, I've had these under AC ducts that will code this way.

[banginbishop]

I had sc 542, 543, 544 and sc545 codes last month on a 3245 - replaced the thermistors as they were going up and down like a pair of Whores drawers. Worked for a week, replaced the power supply when it came in again lasted a day (if that), replaced the BICU board and that lasted for about an hour after i had gone so i replaced the fuser with a brand new one and it looks to have worked.

Oh mine usually happened when coming out of sleep mode or 1st thing in the morning as well.

[turbojetboy]

We had one doing this and it turned out to be the fuser drive clutch (very hard top get at) on the rear panel of the machine- not sure exactly why, (other than fuser not turning properly). It was always 1st thing in the morning, never faulted again after clutch replaced. Good luck from Australia!

[ccchuah]

Are you using the original hot roller for replacement ?

[turbojetboy]

Clutch is CL12 on point to point diagram and is a part of assy b1801100 k drive.

[Shadow1]

I had problems with one of these in a huge freezer warehouse - had it right next to the hamburger patties and frozen veggies. Had to tell the sales people"of course it codes out every morning in there and the icicles don't help either."

I'll back the "too cold at startup" theory, assuming it is cold in there at startup. I'll also back the heat roller - seen a few non-oem rollers cause problems.

I've also seen a few techs use the pressure roller for an AF450. Slight mod so they can carry fewer parts, but that's a solid rubber roller, and this machine uses foam to increase the nip band. Takes longer to warm up the solid roller, and makes the machine more likely to code.

It may also help to take the 0085 and 0086 thermistors out and use the 0108 and 0109's from the MP6000

[zyqwiz]

450 pressure roller in a colour machine? I don't think so!
You must be talking about a 3045.

[Polo-022]

Machine is located at a copy shop, wich is not ventillated very well, but there is no air condition installed! It was a second thought after fuser unit replacement, without success. I also checked fuser exhaust fun if it works properly.
Fuser rollers are OEM.
Today i cheated (bypass) interlocks and i observed that heaters switch on for a while-about five seconds-and then code 542 appears.
Next step-before swapping boards, is to look closer to what 'turbojetboy' from Australia suggests about fuser drive clutch.(M/c has already 300k clicks). I think it's interesting..,out of usuals, what do you think about that???
Thanks a lot for your replies...(XLarge community!!!)

[Shadow1]

450 pressure roller in a colour machine? I don't think so!
You must be talking about a 3045.

Oops... That's exactly what I thought we were talking about.

Well, If this ever happens on AF3045 you have some extra tips.

[turbojetboy]

Please let us know if the clutch solves the problem. We have had 3 cases of this now - all fixed by clutch replacement.