[Misc] Canon ImageRunner C5235 pulling double pages

[DMP]

Hi guys,

Issue still remains after replacing all separation, pick up and feed rollers or changing trays. We only use Hammermill 32LB gloss paper. Paper is set as "Heavy1". Copier does not register jams of any sort, just keeps pulling 2 pages at the time every 10 or so pages, prints them fine on both sides and finishes into a booklet via j1 finisher.
Any idea what to troubleshoot, replace or clean?
Currently copier is at close to 300k prints.
Would really appreciate any help.

Thanks

[monarke4]

Re: Canon ImageRunner C5235 pulling double pages

Hi guys,

Issue still remains after replacing all separation, pick up and feed rollers or changing trays. We only use Hammermill 32LB gloss paper. Paper is set as "Heavy1". Copier does not register jams of any sort, just keeps pulling 2 pages at the time every 10 or so pages, prints them fine on both sides and finishes into a booklet via j1 finisher.
Any idea what to troubleshoot, replace or clean?
Currently copier is at close to 300k prints.
Would really appreciate any help.

Thanks

If the problem is that consistent, I would be curious about the paper and how cleanly it was cut. Have you tried riffling a ream of this paper to see if there are any pieces sticking together?

Is there any indication that corners of the paper are being curled or bent?

Static electricity causing pages to stick together?

Humidity?

Some common ideas I am throwing out there.

[DMP]

Re: Canon ImageRunner C5235 pulling double pages

If the problem is that consistent, I would be curious about the paper and how cleanly it was cut. Have you tried riffling a ream of this paper to see if there are any pieces sticking together?

Is there any indication that corners of the paper are being curled or bent?

Static electricity causing pages to stick together?

Humidity?

Some common ideas I am throwing out there.

Paper ream is always shuffled prior loading it into the tray. It is all brand new, perfectly straight paper. I have not thought of static electricity as a suspect.
The problem it is actually not that consistent to determine or narrow down the cause. One time after replacing the separator roller it will be fine for 10-30 booklets or so, another time replacing roller wont fix anything. Blowing compressed air through it, rebooting the copier sometimes fixes it too. it never pulls double with he first page, it usually starts with 2/3rd page. It is never two back to back doubles. This copier only does manual booklets on that same paper since brand new. Each booklet has around 8 pages (16 folded), finished and stapled.

[monarke4]

Re: Canon ImageRunner C5235 pulling double pages

Paper ream is always shuffled prior loading it into the tray. It is all brand new, perfectly straight paper. I have not thought of static electricity as a suspect.
The problem it is actually not that consistent to determine or narrow down the cause. One time after replacing the separator roller it will be fine for 10-30 booklets or so, another time replacing roller wont fix anything. Blowing compressed air through it, rebooting the copier sometimes fixes it too. it never pulls double with he first page, it usually starts with 2/3rd page. It is never two back to back doubles. This copier only does manual booklets on that same paper since brand new. Each booklet has around 8 pages (16 folded), finished and stapled.

Blowing air through the machine might suggest paper dust, again like you mention it's not a consistent fix.

If for some reason you blow air through the machine including the paper trays, it might cause the paper to float long enough to completely separate pages then not settle back down (wild thoughts).

Are the paper trays clean? No indication that the tray guides have become excessively slick/glazed from polishing of the paper edges? (More generalities here) Are there cork pads or something similar to help keep more than one piece of paper from exiting the tray at the same time?

Could it be a mechanical clutch problem causing more than one sheet being fed?

I do not have a svc manual to look at therefore I can't dissect in my mind what the possibilities might be beyond the basics. I am sure others will respond after their turkey consumption.

[DMP]

Re: Canon ImageRunner C5235 pulling double pages

Blowing air through the machine might suggest paper dust, again like you mention it's not a consistent fix.

If for some reason you blow air through the machine including the paper trays, it might cause the paper to float long enough to completely separate pages then not settle back down (wild thoughts).

Are the paper trays clean? No indication that the tray guides have become excessively slick/glazed from polishing of the paper edges? (More generalities here) Are there cork pads or something similar to help keep more than one piece of paper from exiting the tray at the same time?

Could it be a mechanical clutch problem causing more than one sheet being fed?

I do not have a svc manual to look at therefore I can't dissect in my mind what the possibilities might be beyond the basics. I am sure others will respond after their turkey consumption.

Thanks for brainstorming with me here on turkey day .. Trays are as clean as they can be. As far as I am aware there are no cork pads on this model copier. I have replaced the P
paper feed torque limiter on one tray for the sake of experiment and it did not help. Besides issue persists on either 1st or 2nd tray. Thanks again and hopefully there are techs on here able to steer me to the right direction..

[JPiek]

Re: Canon ImageRunner C5235 pulling double pages

Inconsistent, special paper... Nice one to figure out
Question: what kind of rollers have you put in the machine, the regular ones or the 'new' ribbed type ?


btw. No Turkey's here

[DMP]

Re: Canon ImageRunner C5235 pulling double pages

Inconsistent, special paper... Nice one to figure out
Question: what kind of rollers have you put in the machine, the regular ones or the 'new' ribbed type ?


btw. No Turkey's here

Only OEM Canon rollers. Yesterday I went through the procedure according to service manual and cleaned all sensors/rollers behind upper and lower side covers. I ran a batch of 40 booklets and first 20 were OK. From there on same issue. no error codes, no jam codes, machine just pulls 2 sheets and runs them all the way through. Booklet has 8 letter format sheets, folded and stapled. It happens only once or twice among the 8 sheets. It never happens back to back pages and it never happens with front page.

[JPiek]

Re: Canon ImageRunner C5235 pulling double pages

Canon has two types of rollers, the ribbed ones work better...

Canon FC0-5080-000 (FC5-6934-000) Cassette Feed Roller, Genuine (J1202)

instead of

Ролик подачи CANON FC6-7083-000 в наличии купить от Bestdostavka быстро с доставкой по Кишиневу и Молдове в price.md

[darkocg88]

Re: Canon ImageRunner C5235 pulling double pages

Print some pages, stop printing, open the tray and check paper if theres static. It might become static inside the tray for some odd reason.

Glossy is always tricky.

[petermays]

Re: Canon ImageRunner C5235 pulling double pages

hello

im guessing 32LB is 120 GSM so heavy 1 is correct.

i spoke to a canon europe support guy and his words to me where...CANON does not support glossy paper. unless its there glossy lol

only reason it takes to is the fact that media is sticky and its sticking together when fed.

try only put 5 in at a time.maybe pressure is causing paper to slightly heat sweat and stick together.try run A4R or your terms LTRR.

[zoraldinho]

Re: Canon ImageRunner C5235 pulling double pages

A common problem with glossy paper. Therefore, printers wich often print on glossy paper (imagepress) have air-separation of paper.



YouTube

[monarke4]

Re: Canon ImageRunner C5235 pulling double pages

A common problem with glossy paper. Therefore, printers which often print on glossy paper (imagepress) have air-separation of paper.



YouTube

Or a vacuum pick-up. The Heidelburg comes to mind. There was one in our high school print shop in the 1970s.

If there is one, when will the Lease on this C5235 be up?

After viewing the video , it seems as if it's time to Trade/Move up to the next level.

Now knowing that this may be the fault of printing on glossy paper, I hope the original poster "DMP" has some hair left.

[guitar9199]

Re: Canon ImageRunner C5235 pulling double pages

Just out of curiosity, have you tried replacing the Torque Limiter on your separation roller?

[DMP]

Re: Canon ImageRunner C5235 pulling double pages

Just out of curiosity, have you tried replacing the Torque Limiter on your separation roller?

Thank You all fellas for your replies and I am sorry I have not replied earlier.
To answer questions above, yes I did replace torque limiter on first drawer. However this was unlikely to be the issue since it had occurred on both top (1st) and 2nd drawers.
Upon following cleaning procedure from the manual of all rollers, sensors etc the issue was finally resolved. It took tons of wasted expensive paper, a bunch of OEM feed pickup and separation roller kits, and what not. I still have not narrowed which exact sensor or roller causes the issue but it must be somewhere within pickup/feed system. I now occasionally go over the same cleaning procedure every several thousands of copies and jamming or double page feeding no longer occurs.
This copier was purchased brand new from Canon USA with buy out option (not leased). I also opted out of any contracts since all we print is fully colored, double pages, folded, stapled and finished into assembly manual booklet. Upon quick calculation if I had to be under contract, It would have costed me the price of the machine itself every year or less.
For the past 3 years I have learned so much about this machine, I can say with confidence I understand it better than the several Canon technicians whom have serviced it several times.
On a separate note, I always wanted to publicly share my buying experience with Canon USA (Boca Raton, FL location) and the worst purchasing experience I have had in my entire life. Probably matter of another thread if it is allowed in this great and helpful forum.
Back on topic, although this copier has served its purpose OK so far at 313k pages, it is definitely not the best solution for production printing colored double sided booklet with mixed HQ images and text.
I am definitely interested in upgrading to Canon ImagePress series. Will look into it for sure.

Thanks again guys and have a great one!
D.