Ricoh MPC2051 jam code J064

[SteinarN]

Re: Ricoh MPC2051 jam code J064

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

I checked in SP. This sensor senses when I put a paper in the exit sensor path from the fuser side, repeatedly, seems ok. On a note, this is a mechanical sensor, dont know how the mecanical position of the sensor is made into an electrical signal though, if it is magnetic maybe. The other two are electro-optical sensors.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Just a thought, if I have an hour I could let go to waste....

Hook up my test equipment to the wires of the inverter sensor and read the signals from the sensor in real time when I do a double sided printout

[Phil B.]

Re: Ricoh MPC2051 jam code J064

in a little over 1 day, there are 5 pages of suggestions, seems to me if you hired a TRAINED tech your problem would have been fixed by now.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

@Phil, this is not a problem, it is a challenge

Anyway, I have measured the output of the sensor.
The left wire in the pic is ground, the right wire is 5V supply, the middle wire is signal which get a 5V voltage supplied from the control board via a high value resistor, say 10Kohm. With sensor disconnected the signal wire is high (about 5V), the same as no paper. With sensor connected the signal wire is high until something is closer than about 20mm in front of the sensor. The signal then goes low. So, the sensor put out either high (5V) or low (0,1V) signal, nothing inbetween. So the control board do not need to interpret an analog signal, the output is digital high/low.
Regarding putting out high, what the sensor do when high signal (no paper) is that it does nothing, it just lets the 5V in the signal wire stay like that, when paper is sensed the sensor grounds the signal wire pulling the voltage in that wire down to close to zero V.

[luca72]

Re: Ricoh MPC2051 jam code J064

I checked in SP. This sensor senses when I put a paper in the exit sensor path from the fuser side, repeatedly, seems ok. On a note, this is a mechanical sensor, dont know how the mecanical position of the sensor is made into an electrical signal though, if it is magnetic maybe. The other two are electro-optical sensors.

it could be "malfunctioning", from experience, it happened to me that it jammed 1 time, every 20 pages in F / R, that is, if you try in sp input, it seems to work, but in practice it doesn't work every now and then, try to clean too this one, it's on the duplex, behind the group with the gates, see where the shaft goes, and give it a good air blow

[luca72]

Re: Ricoh MPC2051 jam code J064

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.

don't look at it, blow it well, you know how many! and as someone suggested you also clean the shafts well with the rubber rollers

[SteinarN]

Re: Ricoh MPC2051 jam code J064

I have blowed with compressed air everywhere, cleaned everywhere, still the same.
I stop with that, am going to order the inverter sensor based on the code that points to that sensor.

[mga]

Re: Ricoh MPC2051 jam code J064

Really silly question it's not the tray above the output tray in the wrong place blocking the top output area

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Really silly question it's not the tray above the output tray in the wrong place blocking the top output area

No questions are silly.
One peculiar observation is that when the print is optimized for speed the paper are just 10mm short of clearing the inverter sensor. When I set that setting to "Normal" and the feed speed go down to a low speed the paper are several cm short of clearing the inverter sensor. And as I wrote in an earlier post, A4 SEF, A4 LEF and A3, all of which have different feed lengths, all stop at the same position from the trailing edge of the paper, despite A3 having been feed twice as long past the inverter sensor with its leading edge compared to A4 SEF. It is almost like I feel there might be a misconfiguration somewhere, dont know if that can be possible at all.

If you wonder about the print already at the top side of the paper it is because I have reused some sheets.

This is how it looks after the machine have stopped with speed set to normal, that is slower print speed than when it is set to speed priority:

[mikadonovan]

Re: Ricoh MPC2051 jam code J064

Now that I have seen those pics, I can say I have had to pull inverter assemblies before to clean the solenoid (which was causing misfeeds), although not on this model. If you do, make sure the small, short harnessed connectors are seated upon reassembly.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

A correction to my previous post.
It was not the speed/quality setting that determines the print speed and how far the trailing edge is from clearing the inverter sensor, it is the dpi setting which I changed at the same time. However, the connection between feed speed and the lenght missing for clearing the sensor remains, low feed speed and the paper misses with about 25-30mm, high feed speed and it misses by just 10mm.

[slimslob]

Re: Ricoh MPC2051 jam code J064

Really silly question it's not the tray above the output tray in the wrong place blocking the top output area

No because that is not an exit. The slot and tray are the inverter path. It becomes the main paper exit path only when the internal finisher is installed.

[luca72]

Re: Ricoh MPC2051 jam code J064

No questions are silly.
One peculiar observation is that when the print is optimized for speed the paper are just 10mm short of clearing the inverter sensor. When I set that setting to "Normal" and the feed speed go down to a low speed the paper are several cm short of clearing the inverter sensor. And as I wrote in an earlier post, A4 SEF, A4 LEF and A3, all of which have different feed lengths, all stop at the same position from the trailing edge of the paper, despite A3 having been feed twice as long past the inverter sensor with its leading edge compared to A4 SEF. It is almost like I feel there might be a misconfiguration somewhere, dont know if that can be possible at all.

If you wonder about the print already at the top side of the paper it is because I have reused some sheets.

This is how it looks after the machine have stopped with speed set to normal, that is slower print speed than when it is set to speed priority:

you can attach the smc? only loggin data, not all

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Here is the smc

20210406210341685.pdf - Google Drive

[GIUBOSS]

Re: Ricoh MPC2051 jam code J064

Here is the smc

20210406210341685.pdf - Google Drive

remove the paper reversal section where the paper gets stuck, it should be a breeze for you now since you have reassembled the fuser unit well; ) and check the rubber rollers that do not touch the plastic perhaps a little deformed by the heat of the fuser, if so you should file around them.