Ricoh MPC2051 jam code J064

[SteinarN]

Re: Ricoh MPC2051 jam code J064

the second photo, looks like a piece of the rudder of the titanic..LOL, so that was it? it looks like a wrong lubricant was used, I took one apart that I have here out of curiosity to see how it was tanned, it looks like new in comparison

It seems like this was it. Only that roller and that end was like this. There was some grooves in the axle, but not covering the full lenght of the bushing. I couldn't see any damage or wear inside the bushing after i cleaned that up.
I lubricated with a itty bitty amount of grease and put it together. I also lubricated all the other bushings in the exit unit with a tiny amount of grease and carefully wiped off the excess after assembly.

The grinding noice I've heard from the exit unit was the inverter motor going to full speed when the paper trailing edge was exiting the fusor. At this point the offending axle are still in contacting the paper and that axle would be driven by the inverter motor via the pull on the paper at a high feed rate, while the offending axle itself would only be driven at a lower feed rate by it's motor, and thus the requirement for the clutch. But when that axle had too much friction the inverter axle/roller was slipping a bit and the paper would only be feed at the slower speed of the binding axle/motor and thus the paper trailing edge would pass the inverter sensor too late causing a triggering of 064.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

ok, as punishment you will make a contribution to the CTN instead of paying the technician .

I guess my options at the moment are somewhat limited...

[GIUBOSS]

Re: Ricoh MPC2051 jam code J064

It seems like this was it. Only that roller and that end was like this. There was some grooves in the axle, but not covering the full lenght of the bushing. I couldn't see any damage or wear inside the bushing after i cleaned that up.
I lubricated with a itty bitty amount of grease and put it together. I also lubricated all the other bushings in the exit unit with a tiny amount of grease and carefully wiped off the excess after assembly.

The grinding noice I've heard from the exit unit was the inverter motor going to full speed when the paper trailing edge was exiting the fusor. At this point the offending axle are still in contacting the paper and that axle would be driven by the inverter motor via the pull on the paper at a high feed rate, while the offending axle itself would only be driven at a lower feed rate by it's motor, and thus the requirement for the clutch. But when that axle had too much friction the inverter axle/roller was slipping a bit and the paper would only be feed at the slower speed of the binding axle/motor and thus the paper trailing edge would pass the inverter sensor too late causing a triggering of 064.

do not put regular grease, rather a drizzle of oil (silicone), otherwise it will soon cause the same problem

[SteinarN]

Re: Ricoh MPC2051 jam code J064

do not put regular grease, rather a drizzle of oil (silicone), otherwise it will soon cause the same problem

Ok, but too late for now. But I can take it out again, I feel I am starting to get some experience removing the exit unit now

I do have some silicone stuff, midway between oil and grease in viskosity. So that is what I should have used, good to know.

[slimslob]

Re: Ricoh MPC2051 jam code J064

I hereby declare, officially, that you all are free to scold me as much as you possibly could want.

Pic of the exit unit added.

There was another model that had a similar problem with roller shafts in the exit section above the fusing unit. It would seize in the bushing and not turn thus rounding out the inside of the gear/pulley on the shaft. What you are seeing on the shaft is a type of lacquer left when the oil from the bushing gets cooked by the heat from the fuser. You might want to boil the bushing in silicon oil. This will open the pores of the bushing and allow the oil to be absorbed.

[slimslob]

Re: Ricoh MPC2051 jam code J064

New update.
I seems it is not just the paper setting that makes a difference, but also how I configure various settings in the printout dialogue window even if the end result for what the machine should print out is identical, like A4, which tray, what type of paper etc. For example, if i maually select the correct paper tray or if I let the machine automatically select the correct tray (the only tray with A4 paper for example). In one instance the 064 code stops the printout, in the other instance it prints out sucessfully.
As a note, I am using the RICOH PCL6 UniversalDriver V4.31.

More details to follow.

I would avoid the use of universal drivers unless you are pooling different makes and models of printers.

[anothertech]

Re: Ricoh MPC2051 jam code J064

There was another model that had a similar problem with roller shafts in the exit section above the fusing unit. It would seize in the bushing and not turn thus rounding out the inside of the gear/pulley on the shaft. What you are seeing on the shaft is a type of lacquer left when the oil from the bushing gets cooked by the heat from the fuser. You might want to boil the bushing in silicon oil. This will open the pores of the bushing and allow the oil to be absorbed.

Wow good idea, boil the bushing in silicon oil. I never thought of that.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Making the metal of a bushing porous so it can contain some oil is a known idea from long ago. Usually such bushings is made of bronze, sometimes brass, sometimes cast iron. The colour of the bushings in the exit unit led me to believe they are made of bronze, which is an alloy of copper and tin. Brass is an alloy of copper and zink. I should have tested with a file as bronze is much harder than brass. The way you make such parts is to press metal powder which the part is to be made of into a die where the pressure and temperature you press it with determines the porosity. It is possible to achieve porosities up to around 20 percent. But at high porosities the part becomes weaker.

[slimslob]

Re: Ricoh MPC2051 jam code J064

Making the metal of a bushing porous so it can contain some oil is a known idea from long ago. Usually such bushings is made of bronze, sometimes brass, sometimes cast iron. The colour of the bushings in the exit unit led me to believe they are made of bronze, which is an alloy of copper and tin. Brass is an alloy of copper and zink. I should have tested with a file as bronze is much harder than brass. The way you make such parts is to press metal powder which the part is to be made of into a die where the pressure and temperature you press it with determines the porosity. It is possible to achieve porosities up to around 20 percent. But at high porosities the part becomes weaker.

Sintered bronze, brass and iron bushings use in copiers are made with a small amount of oil in them to begin with. Solid metal bushings are usually milled from solid rod and are usually milled over size and require a nylon, Teflon or delron insert. I have also seen bushings milled entirely from delron rods.

[BillyCarpenter]

Re: Ricoh MPC2051 jam code J064

Sintered bronze, brass and iron bushings use in copiers are made with a small amount of oil in them to begin with. Solid metal bushings are usually milled from solid rod and are usually milled over size and require a nylon, Teflon or delron insert. I have also seen bushings milled entirely from delron rods.

Dude, how the hell do you know this? Do you just sitting around reading all day?

[SteinarN]

Re: Ricoh MPC2051 jam code J064

I had to dissect the machine agin, I felt an irresistible urge to know the exact processor in it
The processor is the lower part of the two missing it's heat sink.

It's an Intel Celeron at a paltry 600MHz with 512KB kache. 130nm process node, launched in 2003, so it was already an old (and cheap) part when this printer was launched in 2011.
It contains just 77 million transistors, compared to modern desktop processors containing around 10 billion transistors.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Dude, how the hell do you know this? Do you just sitting around reading all day?

Isn't that somewhat basic knowledge?

[BillyCarpenter]

Re: Ricoh MPC2051 jam code J064

Isn't that somewhat basic knowledge?

Slim does this to me quite often. He pulls some information out of nowhere and leaves me wondering how he obtained this information. He's very well rounded.

[SteinarN]

Re: Ricoh MPC2051 jam code J064

Slim does this to me quite often. He pulls some information out of nowhere and leaves me wondering how he obtained this information. He's very well rounded.

Now you sounds like you're suggesting he has obtained that information in some illegal way

[BillyCarpenter]

Re: Ricoh MPC2051 jam code J064

Now you sounds like you're suggesting he has obtained that information in some illegal way

Or maybe he isn't human? He could be from another planet that is beyond our intelligence. Yeah, that's what I'm gong with.