Brand new install. Intermittent 2 or more 11x17 pages feeding at once through tray 2. I increased the separator spring tension (maxed out adjustment) and checked the torque limiter for resistance. Still intermittent double feed. Gonna head back to this customer's office on Monday. I'm thinking of increasing the tension even more, what do you all think?
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Re: 5052ci 11x17 Double feed, not separating, tray 2
You want less spring tension for more separation. -
Re: 5052ci 11x17 Double feed, not separating, tray 2
This is the correct answer.
If you have too much pressure on the sep roller the pressure causes the sep roller to turn with the feed roller letting the bottom sheet of paper feed too.
Less pressure on the sep roller causes the sep roller to stay still so it holds onto the bottom sheet and keeps it from feeding.Comment
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Re: 5052ci 11x17 Double feed, not separating, tray 2
Yes the others are correct.
For the three roller feed system think of it this way: The more that you increase the spring tension the more the separation roller follows the feed roller, and the less actual page separation that you get. The less spring tension the less the separation roller follows the feed roller, and the more actual page separation that you experience.
For the two roller and pad separation it's exactly the opposite.
I know it's counter-intuitive. It took several times for me to get this right. =^..^=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: 5052ci 11x17 Double feed, not separating, tray 2
Hi Backcat..
So what degree of tension do you think would cause minimal wear on the retard roller? In my experience , the retard tends to get flat spots or generally half the life of the others.
Your thoughts, PLEASE.
Thanks Much
GeoComment
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Re: 5052ci 11x17 Double feed, not separating, tray 2
Each feed unit adjusts uniquely. I have not seen a "formula", like always +1 increment or always -2 increments. If I notice that the separation has flattened early, I'll usually adjust only one increment tighter/less separation.
I believe the flattening occurs when the separation roller spends a lot of time in one orientation/position, when it's never following the feed roller ... excessive separation.
I am a strong believer in minimal separation. =^..^=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: 5052ci 11x17 Double feed, not separating, tray 2
This is not from Kyo manual but from KM manual, should be the same theory.
Separation control
direction.
spring and an acting pressure generated from torque of the torque limiter.
limit torque for preventing double feed.
and paper feed roller, the limit torque is exceeded and the separator roller follows the
rotation of the paper feed roller.
roller, the limit torque is greater than the friction force of the paper, so that the separator
roller is rotated backward.
with the separator roller to be pushed backward in the direction of the tray, so that the
lower sheet of paper is properly separated.A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.Comment
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Re: 5052ci 11x17 Double feed, not separating, tray 2
Ok here's the results thus far. I decreased the tension by each notch in the little metal spring holder until I was maxed out on the "least tension" setting. It got better but still out of 20 sheets, there were 2 occurrences of double feed on Ledger. I modified the spring holder to allow more of an adjustment and it worked.
I think a better fix for this problem would be a lighter "softer" spring (which I did not have in my little box of tricks of springs and screws). Hopefully this holds up.
My only concern is to see if this will create a flat spot on the sep roller because it barely spins with no paper between each roller.
Thanks for all the input!Comment
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Re: 5052ci 11x17 Double feed, not separating, tray 2
#1) Yes, softer spring is an option.
#2) Yes, flattening of the separation roller is always a risk/consequence. It just means that you'll have to replace the rollers more often. Consider it as a trade-off.
Congratulations on your success. =^..^=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
Comment