L4-19 MX-6071

[jp74msj55]

Been back twice on this copier for a L4-19.
Magenta and Cyan process units backing up with toner(Rock hard)
Drum motors working and waste box filling up fast.
Checked waste containers sensors and checked good.
Replaced process unit with new drum and charge kit.
Odd that code points to magenta but cyan filling up with toner also???
Any help would be appreciative. Thanks!!!

[ron67601]

[Craigcul]

Re: L4-19 MX-6071

Hi check this technical report
this can be the problem that the waste toner box is not installed properly so the toner cannot get out of the toner spiral

[JLSam]

Re: L4-19 MX-6071

Wasn't going to respond because Ron and Craig are correct.

Just wanted to note, that I checked my personal history with this code, and I have encountered this twice.

One L4-19 (MX-5070) "Improper insertion of waste box. Cyan drum lock, full auger in process. Magenta drum luck, auger damaged. -New drum unit"
One L4-19 (MX-6070V) "Clogged M Process, waste box near end of life, cleaned, replaced waste box".

Hope sharing my history helps.

Good luck.

[jp74msj55]

Re: L4-19 MX-6071

Spoke to Sharp rep and they are recommending PCU board since Waste Container is
filling up faster than normal???? We shall see. Thanks.

[tedtech]

Re: L4-19 MX-6071

Don't bother with the pcu board. There is most definitely a problem with the waste boxes getting overfull and breaking the augers or flipping blades. The waste sensor and motor is working. We've seen this a ton on 50-6071 machines. The machine isn't saying that the box is full and it doesn't stop it. Some actually register that they're full in micas but never display the message or stop. The boss is currently collecting info and working with Sharp on this problem.

[JLSam]

Re: L4-19 MX-6071

Spoke to Sharp rep and they are recommending PCU board since Waste Container is
filling up faster than normal???? We shall see. Thanks.

That's interesting... I would lean towards improper/ incomplete calibrations causing more toner pull or something else, anything else than the PCU board.

If you do replace the board however, please update this thread after 2 or more waste box replacements, and let us know if the problem is resolved.

Good luck.

[Craigcul]

Re: L4-19 MX-6071

Here is another report that i found regarding Waste toner not installed properly

[Imprestik]

Re: L4-19 MX-6071

I get this code on a daily basis on devices that do a lot of colour.

When you remove the waste toner box, the box is full but the window at the bottom is completely clean.

I believe the MX601HB waste toner box has a serious floor with the internal design of it as its not spreading the waste evenly and filling up the window.

This was never an issue with the MX607HB waste toner box

[jp74msj55]

Re: L4-19 MX-6071

I get this code on a daily basis on devices that do a lot of colour.

When you remove the waste toner box, the box is full but the window at the bottom is completely clean.

I believe the MX601HB waste toner box has a serious floor with the internal design of it as its not spreading the waste evenly and filling up the window.

This was never an issue with the MX607HB waste toner box

But do the process units have alot of toner in them and lock up??
My customer does run alot of color. Going back to try PCU pcb by Sharp recommendation????

[mloudy]

Re: L4-19 MX-6071

We have only seen one instance of L4-19 and it was on a MX-6070V. We have 97 of the MX-***0 series in the field and many that have been replaced end of lease.

We have 122 of the MX-***1 sereis in the field and none of them have thrown a L4-19. I can't explain the reason why we haven't seen it on this series.

In some cases it may point to the conversation with our Sharp service rep. When he visits has goes through a list of known issues. This one started out like this: Do you clean and re-use waste toner containers? No. Do you interchange the MX-607HB and the MX-601HB? No. Do you use non-OEM supplies in any machines? No. I forget exactly where this line of questioning was leading but it may have been to L4-19. Like he often does he laughed and told me what sooo many other dealers were dealing with. He jokes as service round table meetings with other dealers about the problems we never see that most of them deal with every week.

[JLSam]

Re: L4-19 MX-6071

Do you use non-OEM supplies in any machines? .

I've seen the non-oem waste boxes give a f*ck ton of issues on some of the models, including clogged process units! I should of thought of that. So for some we use OEM for select models, but we've had very good luck with KATUN compatible waste boxes and toners.

[leo34staffs]

Re: L4-19 MX-6071

I get this code on a daily basis on devices that do a lot of colour.

When you remove the waste toner box, the box is full but the window at the bottom is completely clean.

I believe the MX601HB waste toner box has a serious floor with the internal design of it as its not spreading the waste evenly and filling up the window.

This was never an issue with the MX607HB waste toner box

The window you are talking about in the 601HB is for waste developer (not toner) for black, that's why it is never filled up. Otherwise it works the same as the 607HB.

[Imprestik]

Re: L4-19 MX-6071

But do the process units have alot of toner in them and lock up??
My customer does run alot of color. Going back to try PCU pcb by Sharp recommendation????

They back up that it snaps the waste auger in the drum unit which ends up flipping the blade in the drum unit hence the L4-19.

Personally don't waste your time or money on the PCU board it wont resolve the issue.

From my understanding, Sharp Europe have made a massive escalation to Japan to get this issue resolved and have sent a pallet load of waste toner boxes and drum units to be inspected.

[Imprestik]

Re: L4-19 MX-6071

The window you are talking about in the 601HB is for waste developer (not toner) for black, that's why it is never filled up. Otherwise it works the same as the 607HB.

That doesn't make sense...

Why would you have separate sections in the waste toner box for toner and developer?

My understanding is as the box fills up, the window starts to fill with waste, as the waste covers the window, it registers the waste box is almost full and starts a count down till the box is full.

When I get the L4-19, I tell all my clients please replace the waste toner box when the device triggers it to prevent the error code. The problem is the device doesn't trigger the waste toner box is full as the window is completely clean and my clients state there are no messages stating (prepare a waste toner box)