[Error Code] Sharp Mx-3100 error L4-11

[plenahan]

Hello,

I just bought this machine and took it home to my house. Had to flash the firmware because the unit had no hard drive. Found a used hdd and put it in and flash the firmware. Unit boots up fine but, has an error code I'm not familiar with. I called a service company and they want money to fix it. I do know this unit did not have a sorter attached to it. I attached a short video on what it is doing. Any help on how to fix this problem myself would be appreciated.

thanks

Patrick

[Akitu]

Re: Sharp Mx-3100 error L4-11

From the manual...

L4-11 Shift motor trouble
Trouble content
Detail PCU
Cause No change in the shifter home position sensor signal
is detected in the operation of the shifter initializing.
Shift motor trouble.
PCU PWB trouble.
Connection trouble of the connector and the
harness.
Shifter home position sensor trouble.

Check & Remedy Use SIM6-1 to check the shift operation.
Use SIM30-1 to check the operation of the shifter
home position sensor.
Replace the shift motor.
Replace the PCU PWB.
Harness and connector connection trouble.
Replace the shifter home position sensor.

Does your machine have an inner finisher? I've seen similar cases of a machine with an inner finisher where the COMM cable was detached from the copier, enabling the operation of the machine's shift motor. Ordinarily it is locked in place after installation and when the COMM cable is connected, it will stop operation of the machine's shifter motor in favour of the finisher's shifter motor.

Easiest way to find out if you have an inner finisher is to go into sim 22-10 and check the line beside Finisher: to see if it reads none or a model number of a finisher.

[ZOOTECH]

Re: Sharp Mx-3100 error L4-11

Does your machine have an inner finisher? I've seen similar cases of a machine with an inner finisher where the COMM cable was detached from the copier, enabling the operation of the machine's shift motor. Ordinarily it is locked in place after installation and when the COMM cable is connected, it will stop operation of the machine's shifter motor in favour of the finisher's shifter motor.

Easiest way to find out if you have an inner finisher is to go into sim 22-10 and check the line beside Finisher: to see if it reads none or a model number of a finisher.

If it had the stand up finisher, but it was not attached, it will cause the shifter motor to start and throw the code - way too familiar with that sound.

[JustManuals]

Re: Sharp Mx-3100 error L4-11

This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:

http://www.justmanuals.com

Paul@justmanuals.com

[Akitu]

Re: Sharp Mx-3100 error L4-11

If it had the stand up finisher, but it was not attached, it will cause the shifter motor to start and throw the code - way too familiar with that sound.

First time I heard that sound I damn near shat myself - second week on the job, moving copier around; go to plug it in and it makes the noise. Turned out it had never had the finisher COMM plug actually screwed into place by the former two clowns technicians, and moving it caused it to come just loose enough to read as being unplugged.

[plenahan]

Re: Sharp Mx-3100 error L4-11

Thank you for the replies. I will check tonight once I get home from work. The unit is at my house. The unit has an internal finisher no external finisher/sorter. The unit was working fine. The only thing that has changed was I bought the unit and it was transported to my house via truck. I'm not an experienced copy guy so, I don't know what could of possibly gone wrong just moving it across town.

regards

Patrick

[Akitu]

Re: Sharp Mx-3100 error L4-11

Internal finisher? Yup. Check the COMM plug running from the finisher to the copier, you'll find it may not be properly connected. Reconnect, power cycle machine and problem solved.

[plenahan]

Re: Sharp Mx-3100 error L4-11

Comm plug looks good, checked it and plugged it back in and still does the same thing. the Sim does NOT show MX-FN17 finisher. So, now I'm at a loss on what should I do. Any suggestions? I've added new pictures to show details.

Patrick

[ZOOTECH]

Re: Sharp Mx-3100 error L4-11

Comm plug looks good, checked it and plugged it back in and still does the same thing. the Sim does NOT show MX-FN17 finisher. So, now I'm at a loss on what should I do. Any suggestions? I've added new pictures to show details.

Patrick

Pull the back panel off the machine, and check the DC power supply for blown fuses, most likely it's F205.

[plenahan]

Re: Sharp Mx-3100 error L4-11

ok, I'll do that tonight once I get home from work. Thank you.

[faxman28]

Re: Sharp Mx-3100 error L4-11

the finisher should be a fnx9 for the 3100, if you leave the finisher unplugged and turn on the copier does it make a rather loud noise (gear grinding). If it does make the noise, that is the shifter trying to go to home position. If it is a fnx17 finisher that could be the cause of the error code. Also remove the dummy punch unit and make sure the shifter is captured by the mounting plate for the dummy punch unit. the shifter probably just came loose from the move,

[ZOOTECH]

Re: Sharp Mx-3100 error L4-11

the finisher should be a fnx9 for the 3100, if you leave the finisher unplugged and turn on the copier does it make a rather loud noise (gear grinding). If it does make the noise, that is the shifter trying to go to home position. If it is a fnx17 finisher that could be the cause of the error code.

I was just checking that when you posted, total brain fart here. He could try to find an FNX9, or he could remove the FN17, and place the center tray.
I just looked at an FN17 and it doesn't look like the photos posted; I'm confused, because the photos are of an FNX9.
TC 22-10 would show a finisher even if the shifter was not locked in placed.

[plenahan]

Re: Sharp Mx-3100 error L4-11

FYI I was just reading the manual and saw the FN-17 finisher. I'm not sure exactly which one it is. I only said the FN-17 because it looks very similar to the one I have. It has NO hole punch but it staples. "Faxman28" you said remove the dummy punch unit and make sure the shifter is captured by the mounting plate for the dummy punch unit. Well, I don't know what I'm looking for. Is there a picture in the service manual that shows this step? Zootech, I'll pull off the back panel tonight and check fuses. That's easy!!!! Again

[plenahan]

Re: Sharp Mx-3100 error L4-11

Looking at the pictures on the internet of a FNX9 is correct that's what I have on my copy machine. Not a FN17.

[ZOOTECH]

Re: Sharp Mx-3100 error L4-11

Looking at the pictures on the internet of a FNX9 is correct that's what I have on my copy machine. Not a FN17.

OK, next step is checking the fuses. You can verify the model and serial number on the silver tag on the rear of finisher when it's been pulled away as one of your photos show.