6052CI – This is weird one…

[jqueen]

After not being in the copier service for almost 4 years, an old client that I used to do service for called me asking for help. The company that I worked for that had the contract no longer is servicing copiers and they didn’t know where to go…so, I came out of ‘copier service’ retirement…
Downloaded the service manual, studied it a bit, looked up the error code C6220. Okay, fuser error of some type. Came back here to do further research on the issue and see that it could possibly be the fuser or Feed PWB.
I arrived at the client’s office to see yellow toner all over the copier. Tried to clear the code but it wouldn’t go away. Removed the fuser and inspected it but didn’t see anything out of the ordinary. I then take the machine in their shop area, removed all imaging components and fuser, removed the back of the copier and this is what I found (See picture). IMG_3981.jpg

I blow all the yellow toner out of the back of the copier, using the clients air blower, still finding yellow toner EVERYWHERE, and vacuumed it out as well. I lightly blow off the excess toner from covers of each DV unit, drum units and TB. Cleaned off the Feed PWB as best I could and put it all back together in the shop, rolled it back to it’s home location, ran calibrations for TB, DV and Drums. This is what comes out….(see pdf).
I tell client that I’ll order both maintenance kits since they do a lot of 11X17 printing, double sided and would come with Fuser assembly. I also ordered the Feed PWB board for just in case for the fuser errors.
Fast forward to yesterday, I’m back at the client’s office, install the maintenance kits, both A and B. Installed the refurbished board, started U952 processes and fuser code C6600. Tried to reset the code several times, still no go. Put old board back in, same code. Exchanged again with old fuser and then back to square one, intermittent C6220 error code and still bad print quality. See PDF…
WHAT AM I MISSING???
I’m thinking now that since the client has been using after market toner, the black is clogged but I cannot explain the C and M and why it is doing this. Yellow seems to be the only one working okay. HP_Printer_Scan0015.pdf HP_Printer_Scan0014.pdf

[ihatefinishers13]

After not being in the copier service for almost 4 years, an old client that I used to do service for called me asking for help. The company that I worked for that had the contract no longer is servicing copiers and they didn’t know where to go…so, I came out of ‘copier service’ retirement…
Downloaded the service manual, studied it a bit, looked up the error code C6220. Okay, fuser error of some type. Came back here to do further research on the issue and see that it could possibly be the fuser or Feed PWB.
I arrived at the client’s office to see yellow toner all over the copier. Tried to clear the code but it wouldn’t go away. Removed the fuser and inspected it but didn’t see anything out of the ordinary. I then take the machine in their shop area, removed all imaging components and fuser, removed the back of the copier and this is what I found (See picture). IMG_3981.jpg

I blow all the yellow toner out of the back of the copier, using the clients air blower, still finding yellow toner EVERYWHERE, and vacuumed it out as well. I lightly blow off the excess toner from covers of each DV unit, drum units and TB. Cleaned off the Feed PWB as best I could and put it all back together in the shop, rolled it back to it’s home location, ran calibrations for TB, DV and Drums. This is what comes out….(see pdf).
I tell client that I’ll order both maintenance kits since they do a lot of 11X17 printing, double sided and would come with Fuser assembly. I also ordered the Feed PWB board for just in case for the fuser errors.
Fast forward to yesterday, I’m back at the client’s office, install the maintenance kits, both A and B. Installed the refurbished board, started U952 processes and fuser code C6600. Tried to reset the code several times, still no go. Put old board back in, same code. Exchanged again with old fuser and then back to square one, intermittent C6220 error code and still bad print quality. See PDF…
WHAT AM I MISSING???
I’m thinking now that since the client has been using after market toner, the black is clogged but I cannot explain the C and M and why it is doing this. Yellow seems to be the only one working okay. [ATTACH]n1611684[/ATTACH] [ATTACH]n1611685[/ATTACH]

Wait, so you did replace the fuser? That was kind of confusing. Fuser should take care of it, they're also garbage.

The yellow toner we have had twice. We had to replace the toner pipe unit, and then it was fine. Sucky part is having to clean all of that spill up. It's unfortunately right next to an inlet fan, so it blows allllllllllllllllllllllllllllllllllllll throughout the machine... Good luck!

[Dark Helmet]

U089 Color belt would be nice to see. From those samples the laser glass looks dirty. Puddle of toner sitting on top of the waste toner unit. Wonder if that felt seal the toner cartridge slides against is damaged or maybe the pipe were the DV unit engages. I had a Sharp were the little foam seals failed and it was pumping toner into the back of the machine behind the waste toner.

When you removed the DV units did you notice piles of toner back there? Any toner on the glass of the laser?

Book says upgrade firmware for the C6220 fuser error codes as one of the fixes and make sure the connector is clean.

image.pngimage.png

[jqueen]

I replaced the fuses with the one in the maintenance kit, and that one gave me the 6600 code. I put back the original fuser and that one seemed to work even though it still intermittently dropped the 6220 error.

The last time the firmware was updated was back in July 2023. I was also thinking that I’d like to update the firmware as well but since I do not have access to that resource, does anyone know what the latest firmware version is?

What about the black? Does anyone have an idea as to what would cause the black to be so grey?

[ihatefinishers13]

I replaced the fuses with the one in the maintenance kit, and that one gave me the 6600 code. I put back the original fuser and that one seemed to work even though it still intermittently dropped the 6220 error.

The last time the firmware was updated was back in July 2023. I was also thinking that I’d like to update the firmware as well but since I do not have access to that resource, does anyone know what the latest firmware version is?

What about the black? Does anyone have an idea as to what would cause the black to be so grey?

It could just be that the fuser is bad. Things happen, unlikely that it's bad, but always a possibility. Since you put the old one back in and didn't code, I'd bet that maintenance kit one is bad. I definitely would clean the connection as another has mentioned, as well as make sure you have the correct fuser, though I don't believe the slower speed or different version/model will fit anyway, you never know.

[toddanderson]

Replace the yellow toner cartridge bulletin Ref. No. 2ND-0200 (N010)

If the toner container has not been replaced for a long time (three to five years) in the machine which rarely prints in color mode, the sealing ability of the seal on the container cap is decreased over time and the toner might be leaked from the container cap. The leaked toner falls in the rear of the machine and scattered by the fan inside the machine, and then causes

After not being in the copier service for almost 4 years, an old client that I used to do service for called me asking for help. The company that I worked for that had the contract no longer is servicing copiers and they didn’t know where to go…so, I came out of ‘copier service’ retirement…
Downloaded the service manual, studied it a bit, looked up the error code C6220. Okay, fuser error of some type. Came back here to do further research on the issue and see that it could possibly be the fuser or Feed PWB.
I arrived at the client’s office to see yellow toner all over the copier. Tried to clear the code but it wouldn’t go away. Removed the fuser and inspected it but didn’t see anything out of the ordinary. I then take the machine in their shop area, removed all imaging components and fuser, removed the back of the copier and this is what I found (See picture). IMG_3981.jpg

I blow all the yellow toner out of the back of the copier, using the clients air blower, still finding yellow toner EVERYWHERE, and vacuumed it out as well. I lightly blow off the excess toner from covers of each DV unit, drum units and TB. Cleaned off the Feed PWB as best I could and put it all back together in the shop, rolled it back to it’s home location, ran calibrations for TB, DV and Drums. This is what comes out….(see pdf).
I tell client that I’ll order both maintenance kits since they do a lot of 11X17 printing, double sided and would come with Fuser assembly. I also ordered the Feed PWB board for just in case for the fuser errors.
Fast forward to yesterday, I’m back at the client’s office, install the maintenance kits, both A and B. Installed the refurbished board, started U952 processes and fuser code C6600. Tried to reset the code several times, still no go. Put old board back in, same code. Exchanged again with old fuser and then back to square one, intermittent C6220 error code and still bad print quality. See PDF…
WHAT AM I MISSING???
I’m thinking now that since the client has been using after market toner, the black is clogged but I cannot explain the C and M and why it is doing this. Yellow seems to be the only one working okay. [ATTACH]n1611684[/ATTACH] [ATTACH]n1611685[/ATTACH]

[jqueen]

Wait, so you did replace the fuser? That was kind of confusing. Fuser should take care of it, they're also garbage.

The yellow toner we have had twice. We had to replace the toner pipe unit, and then it was fine. Sucky part is having to clean all of that spill up. It's unfortunately right next to an inlet fan, so it blows allllllllllllllllllllllllllllllllllllll throughout the machine... Good luck!

🙏🙏🙏

I went back to the client's office yesterday. Thank you for all your suggestions and support. It took me a bit of time with ALL the cleaning that I had to do but wow, was it worth it. Toner, toner, and yet more toner everywhere in that machine. I checked the yellow supply tube, and it was good. I cleaned the back of the HVPS, where the toner was following the current of the board. The same with a couple other boards, cleaning the back and toner was following the current. I'm guessing that cleaning all the contacts on the transfer terminal cover solved the magenta and cyan printing issue where it started as a whole image, then lines. It made sense to me.

When I removed the toner drive, I noticed that there was a rainbow of color but no black toner to clean up on the top of the toner supply unit. I removed the toner supply unit, after removing the excess colors on the top and checked the black toner supply. I looked as if it was clogged, and I unclogged that after checking the unit to make sure that it was working properly.

Now to the fuser issue. To me, this is funny. 😅 I get the machine back together and now back to square one on the initial service call, error code 6220. I put in the new fuser, still nothing changes but the code of 6600. I tell my client that if we were to try to exchange the fuser assembly, we’d need to send back the maintenance kit. I recommended to him that I take two fusers and make one work. He agreed (being desperate at this time). What I found on the new fuser was a damaged bottom cover. Easy fix. Then I found the true culprit…on the right side of the fuser, the sensor that tells the machine that it is running is broken. I then took the two parts off the old fuser and swapped it with the new fuser, and it worked.

All issues resolved…Fuser, light black printing (whole sheet), cyan and magenta partial full printing with lines, clean copier. 😁

I guess I could put in this one last line...I haven't worked on a copier in the last four years! I'm guessing I still have it even though I was forgetting how to service them... Not too bad for this ol' gal...

[blackcat4866]

That was a good bit of work. It feels good, doesn't it. I mean finding the causes, then fixing.
Congratulations.

[ihatefinishers13]

That was a good bit of work. It feels good, doesn't it. I mean finding the causes, then fixing.
Congratulations.

Kyocera's usually run well, but maaaaan they have some funky issues.