we got a customer a used konica 222. worked fine for a week and then started having paper feed trouble in top drawer. would only pick up paper but not advance it. i cleaned feed tires and it worked for a few days and started again. told custoner i would order feed tires and to put paper in 2nd drawer whidh i had also cleaned. worked for a few hours and then same problem. i find it hard to believe that both drawers need new feed tires, could this be another problem.
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Re: konica 222 feed problems
customer is very difficult to work with and says we have one chance to fix it or they want to return it so i am just trying to cover all the possibilities. just find it hard to believe that the feed tires are failing in both drawers. i know on the old 7033 that the door switch would cause jamming or other problems is there anything in this machine that could be causing both drawers to jam. paper doesnt make it out of drawer. -
Re: konica 222 feed problems
Ah! An opportunity to step up on my soapbox!
You may have slipping one-way bearings in the feed units. Quite often, these one-way bearings are not treated correctly.
You'll want to soak out the one-way bearing (aka Torrington) in alcohol, and run a Q-tip around the opening. When it's dried a little add a single drop of light oil (like Triflow) to the bearing.
Check the shaft for wear. It's OK if it's smooth or shiney, but not OK if it has worn down in size/diameter. If the plating has peeled off you'll need to replace the shaft. It is common practice (and completely wrong) to score up the shaft with steel wool or green scrubbie. This action damages the shaft, forcing you to replace it. The one-way bearing needs the maximum surface contact with the shaft, and scoring up reduces the surface contact, and reduces the shaft size.
Some techs replace these one-way bearings every other tire change, or even every time. =^..^=
<<blackcat steps down off his soapbox>>If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: konica 222 feed problems
Why would you put oil in the oneway isnt that defeating the point of it being a oneway? Im not trying to start a argument but i find myself going time and time again to call backs from other techs because they sprayed the oneways or clutches with oil.Comment
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Re: konica 222 feed problems
They absolutely must be oiled. I have some information somewhere about Torringtons:
See page B257 regarding lubrication. I don't claim to understand all (or much) of the engineering data, but I can be certain the the shaft must not be worn down, scored or damaged, and the bearing must be lubricated.
Do not feel like you have to be silent. That is what the forums are for: airing of opinions. Sometimes we agree. Sometimes we don't. No harm, no foul. =^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: konica 222 feed problems
Blackcat is absolutely right. The one way bearings are designed with a cavity in which the bearings retract[spring ] when they are no engaged or in the griping position. These cavity get dirt and stuff in there that prevents them to retract and roll smoothly. when the bearings are in the grip position, oil cannot make them slip as to the close proximity of all the bearings grippin on the shaft. Also, he is right about the shaft where the bearings turn must not be sanded or green pad, but just clean with solvent and alcohol. Only a drop or two of oil should be applied .Do not saturate the bearing with oil.
electronic Clutches shoud never be oiled , but using alcohol to check if a clutch is sticking is a tool techs use. Spring loaded clutch shoud be greased on the boss and spring.
to understand why, go to US patent website and see how they are designed and the science of their mechanics.
Like you, i could not understand this in my early years of troubleshooting. techs must understand how these work as it goes a long way in troubleshooting.
If you can turn a one way bearing with your hand then that bearing and shaft is good. most of the time it will be the shaft that fails, as those bearings are made of very hardened steel.
ENGINEERS GIVE YOUR INPUT HERE. REPLY TO THIS THREADLast edited by subaro; 03-22-2015, 11:48 PM.THE ONLY THING FOR EVIL TO TRIUMPH IS FOR GOOD MEN TO DO NOTHING..........edmund burkeComment
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Re: konica 222 feed problems
DOES ANYONE HAVE ANYTHING TO SAY ABOUT THIS GUYS REPLY. He has pointed out what his co-workers does in the field. This is so important, as most machines do contain mechanical and electronic clutches and one way bearings. He has asked a valid question. both myself and blackcat has replied, but need to hear from more techs and engineers about this.
voice your opinions on this subject. there are lots of junior and senior techs who need to hear your voices.THE ONLY THING FOR EVIL TO TRIUMPH IS FOR GOOD MEN TO DO NOTHING..........edmund burkeComment
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Re: konica 222 feed problems
One Way's with metal cage > clean out crud >oil
One Way's with plastic cage >clean out crud > NO oil
my 2C's
Hans“Sent from my Intel 80286 using MS-DOS 2.0”
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Re: konica 222 feed problems
Thanks blackcat,worth a read. I generally change the clutches and oneway's but will definatly try oil on them to see the results.Comment
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Re: konica 222 feed problems
Here's an example of a worn shaft that I came across last week. This is on a Canon iR5055, but it demonstrates the point:
Worn Shaft.JPG
=^..^=If you'd like a serious answer to your request:
1) demonstrate that you've read the manual
2) demonstrate that you made some attempt to fix it.
3) if you're going to ask about jams include the jam code.
4) if you're going to ask about an error code include the error code.
5) You are the person onsite. Only you can make observations.
blackcat: Master Of The Obvious =^..^=Comment
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Re: konica 222 feed problems
If you check the 1-way in ADF, you'll see it nicely oiled up. And it has plastic casing (#Hansoon).
I've used few oils and so far gearbox oil does the trick. But first a good spray with IPA to get the muck out use corner of lint free cloth(cotton sheets although the new sheets are crap as they semi/synthethic)
Also there is bulletin for side door on vertical path which you want to check and a conveyance roller in vertical path.
I know the feeling of 2nd visit final fix! Good luck mate and heads up. We are all humans and so is the client! Just smile
I change them every 2nd tyre change(mark it wit permanent marker)
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Re: konica 222 feed problems
I too have the seen the cleaning fix (99% isopropyl), as yet have never had to oil a one-way in the white or black plastic cage and very very rarely had to replace one either. This pertains the feed units on multiple KM machines particularily... I might lightly clean the shaft as well... have yet to have a return call on one that was done this way.If you check the 1-way in ADF, you'll see it nicely oiled up. And it has plastic casing (#Hansoon).
I've used few oils and so far gearbox oil does the trick. But first a good spray with IPA to get the muck out use corner of lint free cloth(cotton sheets although the new sheets are crap as they semi/synthethic)
Also there is bulletin for side door on vertical path which you want to check and a conveyance roller in vertical path.
I know the feeling of 2nd visit final fix! Good luck mate and heads up. We are all humans and so is the client! Just smile
I change them every 2nd tyre change(mark it wit permanent marker)
Sent from my iDon't believe in marketing device using Tapatalk
My 2c worth!
Regards!
A.Comment
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Re: konica 222 feed problems
This pertains the feed units on multiple KM machines particularily. PREVIOUS REPLY
DOES KM refers to konica minolta or kyocera mita ?
It is good that the replies about one way bearings are coming in. So far, techs are posting with diffrent methods they use to clean and lubricate or not lubricate them.
aslo good to hear opinions on electronic and spring loaded clutches . service or just replace ?
LET THE VOICES KEEP ROLLING.THE ONLY THING FOR EVIL TO TRIUMPH IS FOR GOOD MEN TO DO NOTHING..........edmund burkeComment
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Re: konica 222 feed problems
Konica electric clutch> disassemble clean NO OIL!! (Registration/feed units)
Konica electric clutch full metal type C650 tray 3 and such > duster or replace only.
Kyocera - disassemble clean plates with WD40 to get rid of rust and residue. Then IPA to clean off the WD40 from the clutch plate contact area. Assembly. (TA5500i series)
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Re: konica 222 feed problems
There is an electromagnetic clutch in the main feed drive assembly, behind the paper trays, that has a nasty habit of failing. This is where your problem likely stems from. You need to remove paper trays, bypass and both feed assemblies to get at it. Also remove the back cover to get at the connector. The drive assembly is held on by five screws.
The clutch part# is 9322 1500 12.
Hope this helpsComment
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