Biz C224e misfeed

[copyman]

Jam codes? =^..^=

Thanks Cat but jam codes will not help with this one. This isn't a jam rather a misfeed. Your eyes are jam code in case like this, consistent with paper stopping same place every time with dent in middle, never feeding out of paper tray.

Going to the customer's today and will report back what it was.

[copyman]

Agree with femaster. Easiest test ever I do to swap all 3 tyres, 2 oneways and torque limiter between 2 standard paper feed drawers. That should almost 100% work until I ger back with some parts. On high mileage machine I tend to swap all 6 pieces together when rollers are due.

What about scuffing up the shaft where one ways go, I use scotchbrite pad? I always do this when replacing one ways.

[blackcat4866]

Sorry, I don't know what the difference is between a jam and a misfeed? There should still be a jam code recorded. And all my database entries are based on jam code ONLY, not some visual of where a piece of paper stops. =^..^=

[copyman]

Sorry, I don't know what the difference is between a jam and a misfeed? There should still be a jam code recorded. And all my database entries are based on jam code ONLY, not some visual of where a piece of paper stops. =^..^=

Technicians each have their way of troubleshooting and lingo. After 40+ yrs in biz my old school way of thinking is if paper has not left the paper tray / drawer / cassette (old school lingo) it's a misfeed. If out of tray far enough to reach transport / registration rollers it's a jam.

So in this case you look at jam code and it registers tray one "jam". Now what? NO help at all! This is where the troubleshooting begins and "visually" see the dent in paper and go from there.

[copyman]

Thanks everyone for the input. Turns out it was the Sep roller torque limiter. After confirming it was that I removed the PF unit and replaced one way's after scuffing up shafts. Already had the new tires I put in a few days ago. So now everything has been done and should be good for a while.

For all the US Technicians Happy 4th. God Bless America

[femaster]

What about scuffing up the shaft where one ways go, I use scotchbrite pad? I always do this when replacing one ways.

I can honestly say I've almost never replaced a one way. Generally a cleaning of the one way with alcohol and scuffing of the shaft with scotchbright is all that is needed to get things back to operational. I do this every time I change out the tires.

[rrrohan]

I can honestly say I've almost never replaced a one way. Generally a cleaning of the one way with alcohol and scuffing of the shaft with scotchbright is all that is needed to get things back to operational. I do this every time I change out the tires.

i dont scuff. my logic is if it helped it would come like that out of the factory

[femaster]

i dont scuff. my logic is if it helped it would come like that out of the factory

If you want to get technical, they do come out of the factory like that. The metal shafts are not perfectly smooth from the factory, they have fine grooves in them from being turned in a metal lathe during production. The shafts eventually get "polished" completely smooth under the one ways and then the one way will begin to slip on the shaft instead of griping it. If someone were to simply clean the one way, or even replace it, it would still slip as the shaft is too smooth for the one way to get a consistently good grip on it. I bring back that slight coarseness to the shaft surface, by scuffing it with Scotchbright, which prevents the one way from slipping. By scuffing, we are not talking about creating deep gouges in the surface, only a matter of roughing up the surface a bit.

If it didn't work I wouldn't bother doing it, as there is no point in doing more work than is necessary. If I didn't scuff the shafts the one ways will generally start slipping before the new set of tires reach half their life cycle. With scuffing, I never have to worry about them slipping at all, which means less service calls and a happier customer. Because of this, I'll continue to scuff the shafts where the one ways ride, and if not scuffing yours works for you, have at it.

[rrrohan]

i get the logic i used to do it on the old C353's and C220s but havent done it since the 4 series released. i think they re designed the bearings which must of fixed it cause they used to be blue and now are all black

[Synaux]

Well Scotchbrite (which contains both Aluminum oxide and Titanium oxide) it is rated at around 1000 grit. (google told me so).

Those that have ever done any wet-sanding know that is not much.
Especially on a metal shaft (in this scenario, I assume 304 stainless).

More likely what you are accomplishing is clearing debris off the shaft:
In particular, the metal and plastics from the bearing embedding itself into the microscopic surface of the shaft.

In fine, there is almost no reason not to unless you forgot the scotchbrite or have sore fingers...

(If I remember to do it, I have a few used spare shafts that I will test this theory out and post some microscope picks. And hell, if someone sends me a new shaft [not that I need one] I can put this puppy to bed )