Ricoh MPC2051 jam code J064

[SteinarN]

Re: Ricoh MPC2051 jam code J064

10mm sounds about right for the hysteresis delay of a sensor failing from excessive heat stress. As for the grinding noise you might want to check the clutches involved n the reversal of the rollers in the inverter section.

Ok. So you suggest a failing sensor would/could cause a stop with the paper missing just 10mm for clearing the sensor?
Probably time for checking the parts manual then

[slimslob]

Re: Ricoh MPC2051 jam code J064

Normal printout tested on A3. Very good print quality, razor sharp. Pic have low quality because of file size, real printout is better.

Yes but the images you provided of the fusing rollers showed that the pressure roller was starting to breakdown at the front end.

[slimslob]

Re: Ricoh MPC2051 jam code J064

Ok. So you suggest a failing sensor would/could cause a stop with the paper missing just 10mm for clearing the sensor?
Probably time for checking the parts manual then

I miss read your previous post. I thought you meant that it stopped 10mm past the sensor. If the grinding is a clutch problem it could slow the speed of the paper down enough to be detected as a jam.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Yes but the images you provided of the fusing rollers showed that the pressure roller was starting to breakdown at the front end.

I didnt mean that the currently good print quality did mean that the fuser is good, definitely not. I too know when I see worn parts, and the fuser is definitely worn

[SteinarN]

Re: Ricoh MPC2051 jam code J064

I miss read your previous post. I thought you meant that it stopped 10mm past the sensor. If the grinding is a clutch problem it could slow the speed of the paper down enough to be detected as a jam.

I was wondering if you maybe misunderstood.
Yes, the paper have not cleared the sensor when the machine stops, but it is very close to have cleared it.
And, yes, I do also wonder about something slowing speed down a little bit. But I am not sure if those motors can run slow though, if they are synchronous motors they either run at the correct synchronous speed or they stop completely.

I dont know how much more I will do tonight. I will continue another day.
Figuring out the mechanics of the output/inverter unit.

Anyway, thank you very much everyone for good advice and suggestions

[anothertech]

Re: Ricoh MPC2051 jam code J064

Run the motors in I/O mode to see if you can determine if they are trying to turn something that is binding up.

[copier tech]

Re: Ricoh MPC2051 jam code J064

Hi,
this is my very first post here. I found this forum when searching for information on my newly acquired Ricoh MPC2051 machine.
The machine have only produced about 130k printouts, so it shouldnt be too worn. It is produced around jun 2013.
However I have run into a problem today, namely paper jam code J064 when printing double sided only. The paper does stop repeatedly when it is almost into the "turn tray?" between printing the first and second side. There is however no real paper jam, it seems like the machine just thinks there is a jam. I think I can see the sensor responsible for this code, the sensor is clean.

What can the problem be?

Steinar

It seems like I cant upload pictures yet?

There have been many modifications to this model over the years. Especially for the duplex guide, over time the plastic become brittle & breaks easily.

Check this unit carefully for any broken 'claws' etc.

Screenshot 2021-04-06 093102.jpg

You can quickly rule out a sensor issue by checking they are operating using input checks in SP mode.

Also try feeding the paper in SEF direction does it still jam?

[luca72]

Re: Ricoh MPC2051 jam code J064

Hi,
this is my very first post here. I found this forum when searching for information on my newly acquired Ricoh MPC2051 machine.
The machine have only produced about 130k printouts, so it shouldnt be too worn. It is produced around jun 2013.
However I have run into a problem today, namely paper jam code J064 when printing double sided only. The paper does stop repeatedly when it is almost into the "turn tray?" between printing the first and second side. There is however no real paper jam, it seems like the machine just thinks there is a jam. I think I can see the sensor responsible for this code, the sensor is clean.

What can the problem be?

Steinar

It seems like I cant upload pictures yet?

you have to clean the sensors inside the exit unit, (not the one in the photo)do this: remove the internal removable tray, the ideal would be to take the group down, but too thin to explain, at least remove the blue lid where the paper comes out, take a can of air, and blow well the two sensors that are there in the middle of the black plastic where there are the two black flags, use a light

[SteinarN]

[GIUBOSS]

Re: Ricoh MPC2051 jam code J064

Hi,
this is my very first post here. I found this forum when searching for information on my newly acquired Ricoh MPC2051 machine.
The machine have only produced about 130k printouts, so it shouldnt be too worn. It is produced around jun 2013.
However I have run into a problem today, namely paper jam code J064 when printing double sided only. The paper does stop repeatedly when it is almost into the "turn tray?" between printing the first and second side. There is however no real paper jam, it seems like the machine just thinks there is a jam. I think I can see the sensor responsible for this code, the sensor is clean.

What can the problem be?

Steinar

It seems like I cant upload pictures yet?

Have you overhauled the output rubber rollers? Try to slightly increase the pressure of the springs of the white rollers, I do it in case of very old rollers (if the oven unit is definitely working) Then keep in mind that worn gears in the fuser and the fuser itself plays an essential role in the recovery of the sheet . Remove the fuser unit and rotate the fuser rollers by hand in both directions.
Probably the fuser unit has come to fruit

[SteinarN]

Re: Ricoh MPC2051 jam code J064

you have to clean the sensors inside the exit unit, (not the one in the photo)do this: remove the internal removable tray, the ideal would be to take the group down, but too thin to explain, at least remove the blue lid where the paper comes out, take a can of air, and blow well the two sensors that are there in the middle of the black plastic where there are the two black flags, use a light

I can only find two optical sensors in the output unit, the inverter sensor and the fuser exit sensor, both of which are visible above the fuser unit.
I have removed the output feed unit, I cant see anything obvious with it, axles turns very smooth, plastic is like pristine, one way clutch operates very smooth too.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Have you overhauled the output rubber rollers? Try to slightly increase the pressure of the springs of the white rollers, I do it in case of very old rollers (if the oven unit is definitely working) Then keep in mind that worn gears in the fuser and the fuser itself plays an essential role in the recovery of the sheet . Remove the fuser unit and rotate the fuser rollers by hand in both directions.
Probably the fuser unit has come to fruit

No, have not done any work on any rollers. But they look very good.
But the fuser unit does definitely not look good, I dont know why it is so much worn after only 130K prints. Very worn gears in the fuser unit. See my previous post where I took it completely apart.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Run the motors in I/O mode to see if you can determine if they are trying to turn something that is binding up.

I will try that.

[luca72]

Re: Ricoh MPC2051 jam code J064

I can only find two optical sensors in the output unit, the inverter sensor and the fuser exit sensor, both of which are visible above the fuser unit.
I have removed the output feed unit, I cant see anything obvious with it, axles turns very smooth, plastic is like pristine, one way clutch operates very smooth too.

is the one shown in the photo, which usually breaks the balls

[SteinarN]

Re: Ricoh MPC2051 jam code J064

is the one shown in the photo, which usually breaks the balls

That is the exit sensor. But in my case the paper doesnt pass that sensor, it goes to the inverter tray, as it should, and then the machine stops.
I did have a look at that sensor when I had the assembly at my desk, the sensor moved freely at least. But I can have a look manually in SP and try to actuate this sensor.