L4-19 MX-6071

[tedtech]

Re: L4-19 MX-6071

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)

The trigger is actually a little tab that pops out into a sensor once the waste toner slows the auger inside of the container. Every one that we've had has the tab popped out and no message on the screen to replace it and doesn't stop the machine. We've sent a bunch back to Sharp for this reason.

[ricohrice]

Re: L4-19 MX-6071

Waste toner full is detected when both the window is filled and when the trigger is popped. If the trigger pops but the window is not filled the machine thinks everything is fine because it takes the combination of the two sensors to trigger waste full. At every service call I and my guys are tapping the boxes to get the windows to fill, there is a design flaw that isn't allowing enough toner to fall down into the window.

[leo34staffs]

Re: L4-19 MX-6071

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)

For Clarity: copied out of operational descriptions

Waste developer (BK) full detection operation
There is a first collecting part where the waste developer (BK) is
deposited inside the waste toner box and a second collecting part connected
by the slit hole at a height adjacent to the collecting part.
The waste developer discharged from the developing section in the
first collecting section drops and accumulates and flows over the slit
hole and flows into the second collecting section.
TNFD2 turns on by depositing a certain amount in the waste toner window
cover attached to the wall surface of the second collection part
and then flowing in.

Near end detection and message
When one of the TNFD or TNFD2 is turn ON continuously for 3 sec, it
is judged as near end and the message is displayed to indicate that
the replacement of the toner collection box is approaching.

[Imprestik]

Re: L4-19 MX-6071

For Clarity: copied out of operational descriptions

Waste developer (BK) full detection operation
There is a first collecting part where the waste developer (BK) is
deposited inside the waste toner box and a second collecting part connected
by the slit hole at a height adjacent to the collecting part.
The waste developer discharged from the developing section in the
first collecting section drops and accumulates and flows over the slit
hole and flows into the second collecting section.
TNFD2 turns on by depositing a certain amount in the waste toner window
cover attached to the wall surface of the second collection part
and then flowing in.

Near end detection and message
When one of the TNFD or TNFD2 is turn ON continuously for 3 sec, it
is judged as near end and the message is displayed to indicate that
the replacement of the toner collection box is approaching.

Either way, none of this is clearly happening hence the issue. As one of the other techs have mentioned and I agree with him, there is a design floor in the MX601HB. What I can't work out is if its a certain batch that have the design floor, or the mold that makes the waste toner boxes has an issue with it cause I have replaced a truck load of waste toner boxes and this seems to only be a recent issue. It seems to be very hit and miss at the moment.

[chubblies]

Re: L4-19 MX-6071

We have had the same on high volume machines. We actually took apart a waste box where it had happened and there was loads on toner in one compartment that had caused the pcu unit to snap auger, but the excessive load trip mechanism had not operated to alert the machine. The window was completely empty also.

Has anyone had any further progress with these waste boxes?
It is a severely over engineered box for something that should just fill up and alert when full. Why Sharp decided to make it a toner maze is beyond me, it is flawed by design.

[JLSam]

Re: L4-19 MX-6071

Has anyone had any further progress with these waste boxes?

None yet. But these Phoenix models have a myriad of DV pull issues that could possibly be related to this.

We will see. Thankfully, outside of random MFP lockups, the new BP's are quite nice.

[mloudy]

Re: L4-19 MX-6071

When you say "lock ups" on the BP series are you talking about the operational panels becoming unresponsive?

[Imprestik]

Re: L4-19 MX-6071

This issue has been resolved and rectified by Sharp Japan

Any waste toner box you have made before March 2023 will cause the L4-17,18,19 or 20 error code.

They found there was an issue with the waste toner box jig and have repaired it

It's recommended you remove all waste toner boxes made before March 2023 and replace them with ones made from April 2023 onwards

Slowly but surely this issue will dissolve

[Hansen88]

Re: L4-19 MX-6071

This issue has been resolved and rectified by Sharp Japan

Any waste toner box you have made before March 2023 will cause the L4-17,18,19 or 20 error code.

They found there was an issue with the waste toner box jig and have repaired it

It's recommended you remove all waste toner boxes made before March 2023 and replace them with ones made from April 2023 onwards

Slowly but surely this issue will dissolve

Is there any way to tell when they were made?

[mloudy]

Re: L4-19 MX-6071

I could not find any molding date marker on the waste containers. The boxes they come in have a small white label that may contain lot#'s. Getting bad lot#'s from Sharp would be a task. Sharp US would also have to admit the defect in a bulletin which they don't do very often.

[JLSam]

Re: L4-19 MX-6071

When you say "lock ups" on the BP series are you talking about the operational panels becoming unresponsive?

Screen would go black, touch panel unresponsive, screen frozen, please wait stuck that wasn't a booting issue, just frozen screen.

From random things, especially with User Authentication.

A LOT of them have been resolved through firmware updates. Those bulletins are crazy.

Again, outside of this one issue I have personally encountered, I'm quite liking these MFPs.

[JLSam]

Re: L4-19 MX-6071

This issue has been resolved and rectified by Sharp Japan

Any waste toner box you have made before March 2023 will cause the L4-17,18,19 or 20 error code.

They found there was an issue with the waste toner box jig and have repaired it

It's recommended you remove all waste toner boxes made before March 2023 and replace them with ones made from April 2023 onwards

Slowly but surely this issue will dissolve

I would LOVE a source, or a PDF file on this. Do you have something like that you could share?

[mloudy]

Re: L4-19 MX-6071

Screen would go black, touch panel unresponsive, screen frozen, please wait stuck that wasn't a booting issue, just frozen screen.

From random things, especially with User Authentication.

A LOT of them have been resolved through firmware updates. Those bulletins are crazy.

Again, outside of this one issue I have personally encountered, I'm quite liking these MFPs.

We have a BP-70C31 with a touch screen that will stop responding until the main power is cycled. The power button on the side of the operation panel is also non-functional when it does this. We have replaced the entire op panel, did the firmware update that is only for the touch panel, had a dedicated 20A circuit ran and installed a $1,600.00 UPS backup. It still locks up. It will go days without locking up then it will do it 5 times in one day. Had it in the shop for over a month and it never locked up. We had our IT tech go out and do the panel firmware update to the entire BP series in the field. So far we have only had one other customer call in with an unrepsonsive touch panel.

Sharp referened harmonics caused by an oscillator in the display.

Europe released a new panel in Nov. 2022 and Sharp US released it in Aug 2023. So far the part# has not been entered into TD Synnex so I can order it. It was suppsoed to be entered last Thursday but still not in there today.

[JLSam]

Re: L4-19 MX-6071

We have a BP-70C31 with a touch screen that will stop responding until the main power is cycled. The power button on the side of the operation panel is also non-functional when it does this. We have replaced the entire op panel, did the firmware update that is only for the touch panel, had a dedicated 20A circuit ran and installed a $1,600.00 UPS backup. It still locks up. It will go days without locking up then it will do it 5 times in one day. Had it in the shop for over a month and it never locked up. We had our IT tech go out and do the panel firmware update to the entire BP series in the field. So far we have only had one other customer call in with an unrepsonsive touch panel.

Sharp referened harmonics caused by an oscillator in the display.

Europe released a new panel in Nov. 2022 and Sharp US released it in Aug 2023. So far the part# has not been entered into TD Synnex so I can order it. It was suppsoed to be entered last Thursday but still not in there today.

Oh man you are scaring me.

Yeah I saw that bulletin (CCE-2941) for Touch Panel Firmware update. Have you by any chance done an emergency firmware update? I had Sharp support tell me that it has solved a wide myriad of funky issues, even though Sim 49 went through.

Actually, there were quite a number of times on the Phoenix2 MFPS where SIM 49 didn't update the bundle version, had to do update it via CN emergency. In a few other cases, it was a bad HDD.

Well, I hope we never encounter this problem.