mp4054 - SC554-02 after parts test from another

[luca72]

Hi, everyone, as I said in the previous thread (mp5054 random jam) that I managed to fix, I had to try the parts replaced by the customer, here on one of our mp4054, so, I reassembled the parts I didn't use (BCU) and the others that were those of the customer (paper exit, fuser, pcdu) and here the casino happened.
the mp4054, which previously worked, now gives me sc554-02, which was not there at the customer.
I took the fuser of another mp4054, and mounted it on that, performing the classic procedure with the fuse, only the fuse blew, the machine reset, but sc554-02 returned immediately.
the fusers unit both worked, one was that of the customer, with the pressure roller damaged, but it worked (200k), the other instead of our machine mp4054 is practically almost new, I suspect that the BCU has been damaged, which by the way I didn't even use it, I just took it apart from here, put it in a box, and then brought it back and reassembled here, what do you think?
one more thing ...... I'm going to make an external button to replace the fuses, which I have now finished.
I've seen someone put a switch, others a button, what's better? and how do you know the right time to operate it?


if they originally put a fuse, it means that the fraction of useful time is minimal, do you have any advice on this too?

[Gift]

Re: mp4054 - SC554-02 after parts test from another

Hi, everyone, as I said in the previous thread (mp5054 random jam) that I managed to fix, I had to try the parts replaced by the customer, here on one of our mp4054, so, I reassembled the parts I didn't use (BCU) and the others that were those of the customer (paper exit, fuser, pcdu) and here the casino happened.
the mp4054, which previously worked, now gives me sc554-02, which was not there at the customer.
I took the fuser of another mp4054, and mounted it on that, performing the classic procedure with the fuse, only the fuse blew, the machine reset, but sc554-02 returned immediately.
the fusers unit both worked, one was that of the customer, with the pressure roller damaged, but it worked (200k), the other instead of our machine mp4054 is practically almost new, I suspect that the BCU has been damaged, which by the way I didn't even use it, I just took it apart from here, put it in a box, and then brought it back and reassembled here, what do you think?
one more thing ...... I'm going to make an external button to replace the fuses, which I have now finished.
I've seen someone put a switch, others a button, what's better? and how do you know the right time to operate it?


if they originally put a fuse, it means that the fraction of useful time is minimal, do you have any advice on this too?

Do you have any more Ricoh sleeve units in storage? The always come with a fuse but you just need it to clear certain SCs. I'm not shure but I think you still have to perform SC Reset after restarting the machine with a new fuse. First of all, check all connectors, perhaps you forgot one? For testing puproposes you can also try and perform memory clear engine (after NV ram backup) - I'm not shure if that also clears the SC but you can try if you can't get a new fuse.

I read about the button/switch solution years ago herebut I'd probably feel unsure about the right timing, too.... Guess you'll find some input if you start digging deeper in older topics.

[luca72]

Re: mp4054 - SC554-02 after parts test from another

Do you have any more Ricoh sleeve units in storage? The always come with a fuse but you just need it to clear certain SCs. I'm not shure but I think you still have to perform SC Reset after restarting the machine with a new fuse. First of all, check all connectors, perhaps you forgot one? For testing puproposes you can also try and perform memory clear engine (after NV ram backup) - I'm not shure if that also clears the SC but you can try if you can't get a new fuse.

I read about the button/switch solution years ago herebut I'd probably feel unsure about the right timing, too.... Guess you'll find some input if you start digging deeper in older topics.

I tried another working complete fuser, from another 4054 with fuse, and the code is back. I'm afraid that by detaching that million hard connectors, the BCU was damaged, maybe it was there to fail at any moment, just waiting for the coup de grace, I repeat...I did not even use it the BCU, I took it with me for scruple. anyway I finished the fuse, and the electronics store, had none, I had to build on the fly the button for unlocking, afternoon I try it. good idea that of the reset of the engine, I will definitely do that... hoping that the sc will not be transported by the backup data NVRAM to sd.

imgx.jpg

[MIKON]

Re: mp4054 - SC554-02 after parts test from another

Execute SP5810-002

[Gift]

Re: mp4054 - SC554-02 after parts test from another

[ATTACH=CONFIG]52357[/ATTACH]

So now that red button is missing in poo-teens nuclear case?

[slimslob]

Re: mp4054 - SC554-02 after parts test from another

Do you have any more Ricoh sleeve units in storage? The always come with a fuse but you just need it to clear certain SCs. I'm not shure but I think you still have to perform SC Reset after restarting the machine with a new fuse. First of all, check all connectors, perhaps you forgot one? For testing puproposes you can also try and perform memory clear engine (after NV ram backup) - I'm not shure if that also clears the SC but you can try if you can't get a new fuse.

I read about the button/switch solution years ago herebut I'd probably feel unsure about the right timing, too.... Guess you'll find some input if you start digging deeper in older topics.

The majority of the times I have replaced a fusing sleeve has been when it had reached PM count. Since every new sleeve from Ricoh came with a reset fuse, I had built a substantial collection of fuses. Always kept at least 2 in my tool kit.

[luca72]

Re: mp4054 - SC554-02 after parts test from another

So now that red button is missing in poo-teens nuclear case?

hey Guy...DOUBLE-SOLVED!

I did the following:
- downloaded nvram data to sd = ok
- run sp801-engine = ng (as suggested by gift)
did not reset the code, sp810-002 remaining gray
second round:
- connected fuser-tool to the fuser wiring
- keep press the red button for 2 seconds and simultaneously pressed on display exec sp801-002, and released red button = ok
(the code has been reset)
-shutdown and insert sd with new package and romdata module
- firmware update = ok


WOW ... the firmware of miracles ... the machine is back working great, I think the logic was messed up, even here!


and now I also have my personal fuser tool working and tested


I have some time left to make the tool "cool" ... LOL

fuser tools 1.jpg fuser tool 2.jpg

[Gift]

Re: mp4054 - SC554-02 after parts test from another

LOL nice - hope nobody is confusing this with a teorrist thread

So the machine refuses to perform engine clear and replied with "ng" - that's pretty lame. Have you retried in factory SP?
Well that box is a way nicer looking solution anyways^^

[luca72]

Re: mp4054 - SC554-02 after parts test from another

LOL nice - hope nobody is confusing this with a teorrist thread

So the machine refuses to perform engine clear and replied with "ng" - that's pretty lame. Have you retried in factory SP?
Well that box is a way nicer looking solution anyways^^

no, "ng" I mean that the result was "negative", (I write this) the engine reset actually did it, but the code took it along.

[luca72]

Re: mp4054 - SC554-02 after parts test from another

e vaiiii!!! TRIPLE-SOLVED

this morning, I was able to fix the fuser in code (554-02) as well.
disassembled all the sleeve, cleaned put silicone oil on the cloth, and reassembled, the problem was the two sensors in the photo, this machine a year ago, had the problem that you all know of the "PCU frame toner leakage" that sends out toner, and it was It has been replaced, only it can be seen that during operation this caused toner deposits on the sensors, which consequently no longer read the correct temperature, they saw it higher.
it was enough to leave them to soak in the thinner all night, and then with the "cotton fioc", I cleaned them inside the small window
now everything works !

sensore 4054.jpg

[Gift]

Re: mp4054 - SC554-02 after parts test from another

Wow, neven seen those this dirty

[luca72]

Re: mp4054 - SC554-02 after parts test from another

Wow, neven seen those this dirty

yes, he worked a lot with the pcu frame, with the mylar problem, about a year ago