Mx-3110N copy quality problem

[Hansen88]

Hello, If I do a self print in 64-01 print pattern 17 which looks same as a sky shot the page comes out normal except the last inch at the trailing edge kind of fades out and has a grainy look to it. It does this with all colors. It looks like the charge turns off too soon or if the developer stops too early. It does it on all colors though. I have tried a new hv board we had and have been trying different sim mode settings but so far nothing has had any effect on problem. If anyone has any suggestions or help I would appreciate it. Thanks

[sharpie]

Re: Mx-3110N copy quality problem

I have had similar issues with other color models and it was the fuser speed. Have you tried this on 11x17 paper to see if it is only a trail edge issue?

[Hansen88]

Re: Mx-3110N copy quality problem

Thanks for the reply. If I do 11/17 it does the same thing on the trail edge. I tried the fuser speed changes and it did not really change the problem.

[faxman28]

Re: Mx-3110N copy quality problem

Thanks for the reply. If I do 11/17 it does the same thing on the trail edge. I tried the fuser speed changes and it did not really change the problem.

check your 2nd transfer belt unit, had a 3110 that the transfer roller holding clip would break and transfer roller would be floppin around. causing different image quality issues. make a solid magenta copy (single color mode) stop the copier and look at the image on the first transfer belt, if trail edge is good, you have 2nd transfer, paper or speed issues. If trail edge is bad then first transfer issues, drum or dev.

[Hansen88]

Re: Mx-3110N copy quality problem

I am pulling my hair out on this one. The image problem is on the main transfer belt. I replaced the entire primary and secondary transfer units. Does the problem on all colors when doing single color.

[oeshuron]

Re: Mx-3110N copy quality problem

Any resolution to this issue? Same thing happening with MX-2640n.

[oeshuron]

Re: Mx-3110N copy quality problem

Sample of problem. 61-17. This is of Cyan obviously. Really appears as though losing transfer voltage. Have tried primary and secondary in different machine. Tried different TC PWB and same issue.

20160428_162605.jpg

[sharptech1]

Re: Mx-3110N copy quality problem

have you checked for flipped cleaning blade?

[oeshuron]

Re: Mx-3110N copy quality problem

have you checked for flipped cleaning blade?

Had the primary belt in a different machine and it worked fine. Secondary worked fine as well. The image shown is just after transfer takes place. You can clearly see where transfer doesn't appear to have taken place on the trailing edge of the page. What's weird is the line just before where it looks as though the transfer was stronger than usual which can be seen as a darker line on the printed page just before the white area.

[oeshuron]

Re: Mx-3110N copy quality problem

Going to try PCU PWB. If machine is set to 8.4 x 14 paper tray and 8.5 x 11r is placed on the glass a full image shows on printed page correctly. This points to possible release timing of secondary transfer which should be controlled by pcu.

[oeshuron]

Re: Mx-3110N copy quality problem

PCU PWB was not the answer.

[SwisSeV]

Re: Mx-3110N copy quality problem

It would be great to stop the machine when the paper was just leaving the belt.
Is it possible the paper is being stopped for a fraction of a second and the belt continues and leaves the toner on the belt?

Do you hear any noise from the machine, like jumping or grinding?
Is the registration roller clean (black with no white streaks)
All other rollers clean? That filter at the bottom of the door can decompose and adhesive could get sucked into the machine.
Have you tried replacing the fuser?

It's also possible that the whole drum assembly is the problem. I think if you look there is a bulletin on that somewhere.

If you don't have any luck with those ideas, my next guess would be the power to the charge units.

[oeshuron]

Re: Mx-3110N copy quality problem

It would be great to stop the machine when the paper was just leaving the belt.
Is it possible the paper is being stopped for a fraction of a second and the belt continues and leaves the toner on the belt?

Do you hear any noise from the machine, like jumping or grinding?
Is the registration roller clean (black with no white streaks)
All other rollers clean? That filter at the bottom of the door can decompose and adhesive could get sucked into the machine.
Have you tried replacing the fuser?

It's also possible that the whole drum assembly is the problem. I think if you look there is a bulletin on that somewhere.

If you don't have any luck with those ideas, my next guess would be the power to the charge units.

The machine has less than 1k on the meter. No strange noises when making the copy and all rollers are new. Image on the primary belt is good. Tried fuser in the other machine as well with no change. Have replaced the TC PWB. Case is now with Sharp's Investigation Dept. Waiting to hear back.

[dwarf]

Re: Mx-3110N copy quality problem

have you tried to do a factory reset? ... could it be the firmware level?...sometimes you think the machine is new,however, it may have sat unsold for a long time...

[oeshuron]

Re: Mx-3110N copy quality problem

have you tried to do a factory reset? ... could it be the firmware level?...sometimes you think the machine is new,however, it may have sat unsold for a long time...

Not firmware. Which factory reset are you referring to? System Settings?