2270 3170 3100 3570 4570 Feed assembly rebuild rebuilding ?

[Simons]

Is anyone doing these? Please list quirks I hate when these go bad and stop lifting or jam alot. What causes it? What can we do about it other than forking out for a new unit. I just have not had the time to play with these. Always have to hurry and replace them.... waste of money or best way? What ? Your thoughts ?

[victor_v]

Hi, colleagues.

I have solved a problem so.

ModificationPaperFeed.JPG

The rubber strip 30 х 10 х 3 mm is pasted
Problems aren't present more.

Good luck.

[doktor]

This solved your problem.

[CanonSco]

Hi, colleagues.

I have solved a problem so.

[ATTACH=CONFIG]6694[/ATTACH]

The rubber strip 30 х 10 х 3 mm is pasted
Problems aren't present more.

Good luck.

Standard procedure here to replace any 4570 type inner guides ( as shown ) with the newer type off a 3245 including the lower rhs door.
Cant order the foam strips as a part any more.

[Simons]

The door upgrade is OLD NEWS.
I am talking about the feed assemblys . They can start to bind up and i have heard of some that stop lifting. i guess no one is diving into them like some of us did on the 2200-3320 series.

So again. i am talking about the whole big black feed assem. Not the silly door upgrade or something.

Victor you are also needing the new grey vertical rollers. Your picture shows a black roller. they suck!

[SCREWTAPE]

I mosty never replace the whole pick up. Problems lifting, try the cassette pick up solenoid. Way cheaper the a whole pick up.

The mods also play a big role in paper feeding, Its not a silly upgrade. They do make a big difference. Also the feed and separation rollers make a difference. I see a lot of techs add the same feed as the feed and the sep. There two different type of pick up rollers. There is the FC6-7083-000 which is a feed roller and the color is black and the sep roller is FC6-6661-000, Its color is grey. There were alot of things that had made this machine jam.

[badboys]

I don't remember changing one before. Has been great compared to the previous models. You paper/media could must have cause the issue.

[SCREWTAPE]

Your paper/media must have cause the issue.

That may be so... But try telling a customer that he has to check or change his paper.

[D_L_P]

I remember repairing a lot of ir400 and ir2800 feed assemblies in my time. Most of the time it was a simple as a plastic post holding a spring broken. Then I'd replace the one-way gears and clutch while I had it apart. The chipped gears on the wedge shape black lifter gear were a little more work though.

As far as "tearing into" the 2270's, there isn't much there but I have been replacing the solenoid, one-way gear on the vertical roller, and the black lifter sensor. The lift sensor is next to the pick-up roller and the tip of it wears down and until I held it up to a new one I couldn't tell it was worn. I have only replaced the entire assembly 2x and that was mostly because they had almost 2 mil on them.

Good call Screwtape, when Canon came out with the FC6-7083 and FC6-6661 combo I finally felt there was hope for the jamming issues. I'm shocked when I see techs still using the same roller for both feed/sep or those crappy grey ones for the irc3200. The FC6-6661 is the bomb!!

[CanonSco]

The door upgrade is OLD NEWS.
I am talking about the feed assemblys . They can start to bind up and i have heard of some that stop lifting. i guess no one is diving into them like some of us did on the 2200-3320 series.

So again. i am talking about the whole big black feed assem. Not the silly door upgrade or something.

Victor you are also needing the new grey vertical rollers. Your picture shows a black roller. they suck!

No real need to "dive into them".

Fit the correct tyres as Screwtape details above ( 7083 / 6661 combo has been standard for some time ), fit the "silly" door mods to bring them more in to line with the IR32XX model and they tent to run just fine.
But , tbh , the PPU on one of these is so cheap it is more costly to come back after trying something else. That said I have only had to fit a handful of 2270 type PPU's

[CanonSco]

Just wanted to add that the sensor flags were modified with a metal tip as the original plastic tips wear down & cause jams.

Good point , forgot about that. Still carry the tips.

[linuxxpwin]

I had 2 machines that just started jamming (3570), I found two problems, (never had a lifting problem so far)
but I've had plenty of jam issues,

one: what I found was the paper would start cutting into the finger of the sensor, and so paper would get stuck there, workaround fix for me was to put a piece of mylar to the shape of the sensor finger,

Two: that my upper delivery rollers would be dirty with paper fluff, one I cleaned it with a damp cloth, it was all good.


Linuxxpwin

[Simons]

thanks DLP

Good information. And hey I dont mean that the upgrades are silly. I meant that I wasnt interested in talking about them as the main subject. What I wanted feedback on were the feed assemblys alone but hey Im sure your guys infor hasa helped some other guys.


After reading the info so far its as I expected. Not many entire assem's have been replaced and rebuild info isnt as solid as a fuser rebuild. I work on ALOT of these and agree that usually there isnt a problem. Still replacing a sol. is alot cheaper that the whole thing.

Other feedback I was after are the causes of noise in these. Now, ! I know the motors in the back are usually the cause for a feed assem noice but have experienced a mouse squeak in a top assem that I could not get rid of until i replaced the whole assem. i lubed everything I could get to without taking the gears out. Plus lubed up the rear motors that drove them. I want to say the first one I replaced 5 years ago that had a million was causing noise too.

One attempt to rebuild a top assem resulted in failure and i didnt have time to pursue it unfortunatley. Now that i have the time I am interested in learning more about these assemblys. That is repairing the part that costs the most