MX5111n Printed pages have blue across entire page, fax confirmations and copies OK

[Ratchet2501]

You need to replace both the drum and main charger kit or the problem will not go away.

Especially the cleaning blade and seals on each end of the drum if it's in the kit.

[dsmith46]

I agree with what's already been said. These machines are notorious for pulling developer and toner, and leaving a mess, some better than others. At the very LEAST change out the main charge and drum blade. If the drum looks worn through, then change that too. This should take care of it.

[jeffrodh]

I agree with what's already been said. These machines are notorious for pulling developer and toner, and leaving a mess, some better than others. At the very LEAST change out the main charge and drum blade. If the drum looks worn through, then change that too. This should take care of it.

Would someone mind posting a picture of the drum in new condition and worn condition? The old machines I used to work on had great big black cylinders that we'd just polish... the tech has improved significantly, apparently.

[ZOOTECH]

Would someone mind posting a picture of the drum in new condition and worn condition? The old machines I used to work on had great big black cylinders that we'd just polish... the tech has improved significantly, apparently.

If you see aluminum on the drums behind the green surface that is where the toner is being pulled.
Replace the drum unit, that will give you new seals, drum, cleaning blade, and main charge.

[mojorolla]

Looks like the cyan charge unit is bad. As mentioned about the drums, when they wear, the ends turn a gold color. There is special powder for the end seals to prevents this. Make sure the drum ground is clean as this is also a known issue on gen 1 machines.
There is a retrofit for this model, which consists of tape over the ends of the charge grid.

[Sharp Tech Support]

It looks like the printer machine already reached it's copy life(it means consumable parts already needs to replaced such as Optical Drum, Main Charger unit, Cleaner blade and as well as the Developer Powder and even the Primary Transfer Belt). Consumable parts as I mentioned earlier has a rotation value, just like the Optical Drum, when it reached the maintenance value there are instances that it may give you still a good print out but as you print goes by, little by little it will leave some unwanted lines, smudges and also dirt on print outs, those things are because of used consumables they are already grounded especially the optical drum and the main charger unit, as you said you clean it already but suddenly it came back, it is due to the distribution of positive and negative charge on the drum and charger, it was already unbalanced because it is already grounded(remember to put in your mind that our MFP's are working through positive and negative charge). I just want also to remind you that it is normal on our Sharp MFP's, so next time you should monitor your meter count, you can base on that count when to avail new consumables on your printer so that you can also schedule your maintenance on to the printer machine...

[Sharp Tech Support]

Additional suggestion, it is recommended to replaced all the consumable parts at the same time, they all have the same value except for the black(k) but most of the time they are replaced at the same time.. be sure to clean the inner parts of the printer before putting back those consumables(maybe you can use vacuums if it is available) and after replacing it be sure to do on the calibration for you to have a good quality print outs...

[jeffrodh]

Additional suggestion, it is recommended to replaced all the consumable parts at the same time, they all have the same value except for the black(k) but most of the time they are replaced at the same time.. be sure to clean the inner parts of the printer before putting back those consumables(maybe you can use vacuums if it is available) and after replacing it be sure to do on the calibration for you to have a good quality print outs...

Thanks. The yellow was replaced recently by the company we leased it from. We own it now, but it's going to be replaced in the near term so I'm just trying to keep Bessie alive for a few more months. Push come to shove I could probably just limit all printing to B/W.

[jp74msj55]

This model is notorious for pulling developer. have had 4 of these in the last 2 years and fix
seems to be is. Replace process unit in question with new drum and maintenance kit.
Also replace entire DV unit and restart with new developer and put in new waste container.
Do all of them together and you should be good or you will be doing pm in about 40K. Also you may need to
put in an Primary transfer belt assy if streaking at top of paper

[jeffrodh]

This model is notorious for pulling developer. have had 4 of these in the last 2 years and fix
seems to be is. Replace process unit in question with new drum and maintenance kit.
Also replace entire DV unit and restart with new developer and put in new waste container.
Do all of them together and you should be good or you will be doing pm in about 40K. Also you may need to
put in an Primary transfer belt assy if streaking at top of paper

Thanks for the additional input. The yellow was replaced about 6 weeks ago along with the waste container. I'm sourcing parts right now, none of the copy places in town deal in Sharp at all... joy joy joy. The drum looks good except for one end which is bare aluminum and has some wear. The rest of it looks flawless and shiny.

Would you mind clarifying what "pulling developer" refers to?