Canon ir1024 image unit remanufacturing problem

[nemonavicusrino]

Hello and thanks every body who read and maybe post some advice.
Before all of this i need to tell i am not very experienced with copier service and i run this activity ocasionaly.
I have a customer who has an ir 1024 with black lines on copied paper. One year back i changed image unit and problem resolved. Now same problem ocured and it is need to change the image unit, but client can't aford this operation for moment (it is a school with limited budget this year). So i comanded a opc drum kit from katun performance. It came with drum and drum cleaning blade. I replaced booth and put it back. But now a very dezagreable noise is hear when machine is running. I make various tests inclusively withowt image unit and only with old drum handled my self in place where it must be runed and rotated, and definately the noise came from internaly agitator of imaging unit. I greased the later pinions (it is three) in a hope that noise would dissapear but the sound is still here. In the final moment i discarded the midle pinion that make link betwwen the first part of agitator and second part. Now there is no sound.
My question:
Is there anything else that can i do, to run with the pinion of agitator linked and withowt sound (what can i do to have everything working and the pinion puled back?)
What it can hapen if the agitator is not working ? (the image unit remain without the second pinion)


Later edit : i runned a 500 sheets copy test and everything seems fine. I dont have misfeed paper and paper with toner dust but i wonder what could be after 5000 page or 15000 pages ?
Every input it will be greately apreciated.

Many thank in advance for avery reply and sory for my realy bad enghlish.
Also greatings from Romania

[teckat]

Re: Canon ir1024 image unit remanufacturing problem

Hello and thanks every body who read and maybe post some advice.
Before all of this i need to tell i am not very experienced with copier service and i run this activity ocasionaly.
I have a customer who has an ir 1024 with black lines on copied paper. One year back i changed image unit and problem resolved. Now same problem ocured and it is need to change the image unit, but client can't aford this operation for moment (it is a school with limited budget this year). So i comanded a opc drum kit from katun performance. It came with drum and drum cleaning blade. I replaced booth and put it back. But now a very dezagreable noise is hear when machine is running. I make various tests inclusively withowt image unit and only with old drum handled my self in place where it must be runed and rotated, and definately the noise came from internaly agitator of imaging unit. I greased the later pinions (it is three) in a hope that noise would dissapear but the sound is still here. In the final moment i discarded the midle pinion that make link betwwen the first part of agitator and second part. Now there is no sound.
My question:
Is there anything else that can i do, to run with the pinion of agitator linked and withowt sound (what can i do to have everything working and the pinion puled back?)
What it can hapen if the agitator is not working ? (the image unit remain without the second pinion)


Later edit : i runned a 500 sheets copy test and everything seems fine. I dont have misfeed paper and paper with toner dust but i wonder what could be after 5000 page or 15000 pages ?
Every input it will be greately apreciated.

Many thank in advance for avery reply and sory for my realy bad enghlish.
Also greatings from Romania

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[nemonavicusrino]

Re: Canon ir1024 image unit remanufacturing problem

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Many thanks for the quik reply.
I know the remanufacturing proces. Even with this i reviewed the clip and it exactly the steps that i runned and aditionaly i wiped waste toner from the image unit chamber. But after i put the image unit back the noise came from the internal agitator an i dont know why, i dismantled image unit and everything seems to be fine. If i roled with hand (manualy) the noise do not apear, if i put in the copier the noise is here. I managed another test of 500 copies and everything seems good. i dont have toner spill on page (yet) but i am wonder how the image unit will comport withowt agitator in the long run.
Many thanks in advance.

[teckat]

Re: Canon ir1024 image unit remanufacturing problem

Only time will tell;

To bad u can't afford a complete unit -

Is it possible something is binding up on the drive to unit, ?
Look inside printer at drum drive / could be a gear issue( slipping/worn teeth-)

[blackcat4866]

Re: Canon ir1024 image unit remanufacturing problem

On many of the Canon drum unit assemblies that hold waste toner, the noise is commonly the result of emptying the waste receptacle completely. The toner acts as a lubricant, to quiet the mechanical parts. If I were you, I would reinstall the stir mechanisms and pour a small amount of toner back into the waste area. It will quiet down. =^..^=

[nemonavicusrino]

Re: Canon ir1024 image unit remanufacturing problem

Only time will tell;

To bad u can't afford a complete unit -

Is it possible something is binding up on the drive to unit, ?
Look inside printer at drum drive / could be a gear issue( slipping/worn teeth-)

thanks for very quik input.
it is definetely from the agitator mechanism/
I verified in this way
i pulled up the imaging unit
i dimantled the lever mechanism from the back doori puled in the lever to imaging unit presence lift the mechanism that converge to toner botle/
I physicaly put the old cilinder and fitted (with hand) in the driving mechanism (a black rounded plastic with the trianglle inside it)
I put on the copier and make on the push buton from back door to spin the motor for a brief time (before the mising cilider eror apear)
In this maner the sound does not apear and the motor is rotating just fine
I ful image unit is asembled a rotating cilinder manualy no nois apear. Only when image unit is it in and copier is powered on and rotating initialiy or motor is in torch / load

Thank for your patience.

[nemonavicusrino]

Re: Canon ir1024 image unit remanufacturing problem

On many of the Canon drum unit assemblies that hold waste toner, the noise is commonly the result of emptying the waste receptacle completely. The toner acts as a lubricant, to quiet the mechanical parts. If I were you, I would reinstall the stir mechanisms and pour a small amount of toner back into the waste area. It will quiet down. =^..^=

Wow.... Thats a totaly new information for me.
Many thanks for this.
I will try this imediately (even if i am a litle woried to not mess something that is working now)
But i have a legal question on this.
Why the new image unit don't have this sounds ? or it can be true to came already with some toner powder inside ? it is a very interesting information i will go and chek this imediately. come back in few minutes

[blackcat4866]

Re: Canon ir1024 image unit remanufacturing problem

... Why the new image unit don't have this sounds ? or it can be true to came already with some toner powder inside ? it is a very interesting information i will go and chek this imediately. come back in few minutes

Sometimes they do make noise when new. But they get quieter just as soon as they collect some waste toner. I am speculating that the manufacturer puts some sort of temporary lubricant on those parts so that they are quiet until the unit has collected some waste toner.

Canon has been making drum units that store waste toner for quite a long time, and I've seen this exact same situation all the way back to the NP1010/1020, NP1200/NP1215/NP1500, NP2020/NP2120/NP6021, NP6025/6030/6230/6035.

Have I expressed myself understandably? =^..^=

[nemonavicusrino]

Re: Canon ir1024 image unit remanufacturing problem

Have I expressed myself understandably? =^..^=

Yes of course. Sory. I am not so experienced that you are
Came back with experiment terminated. I put the gear back and i put aproximately 25 % on capacity of waste tank. I puled back image unit and close the back door. Imediately the noise apeare. I run a copy test but paper is folded on cilinder (i have this problem initialy after drum unit replacement). I puled out the gear closed image unit put it back and close back door. No sound and paper came out just fine.
So...i concluded that gear in the midle who make link between firs part of agitator and second part it posibly to be broked someway and not rotating corectly (maybe lose some tooth ) or maybe some toner powder came on lateral axis of gear.
I stop here because is 2 am here and my wife and child is sleep. I wil do tomorow a brief test of 50 page to see if every is normal like before (i copied 1000 pages withow only page cripled or something else).
If you have another point of view or sugestion let me know. I wil be graceful to here any advice and put in practice.
Many thanks.











)

[blackcat4866]

Re: Canon ir1024 image unit remanufacturing problem

... If you have another point of view or sugestion let me know. I wil be graceful to here any advice and put in practice.
Many thanks.

Only, make sure that the drum blade has not flipped, binding the drum drive. Be sure to lubricate the drum blade with some toner, then rotate the drum to be sure the blade doesn't flip, and the drum cleans off.

Good night. =^..^=

[nemonavicusrino]

Re: Canon ir1024 image unit remanufacturing problem

Only, make sure that the drum blade has not flipped, binding the drum drive. Be sure to lubricate the drum blade with some toner, then rotate the drum to be sure the blade doesn't flip, and the drum cleans off.

Good night. =^..^=

Alread do it . drum is cleaned ok and copies is in good condition.
Many thank for your help. Your info was valuable and make me concluded (like thekat sugested) that the gear is broken. It is posibly to be true your suposition that manufacturers put some lubricant to initial unit and that help to silence the meanism but in time this lubricat go and sound apear on remanufacturing proces to force user buy an entire new unit.
Still, even if i go on this path and keep the gear removed i am interested what it could be the consecuences to not rotating second part of agitator. I wiil instruct customer to came on servce every 15000 page to clean the waste toner tank before acumulate to much.
Sorin.

[blackcat4866]

Re: Canon ir1024 image unit remanufacturing problem

... Still, even if i go on this path and keep the gear removed i am interested what it could be the consecuences to not rotating second part of agitator. I wiil instruct customer to came on servce every 15000 page to clean the waste toner tank before acumulate to much.
Sorin.

Yes, it's possible that the waste toner may back up in the drum unit sooner if the waste toner is not being pushed all the way to the back of the storage area. I cannot give you a specific number of copies to aim for, but it will most certainly be more that 15,000. Perhaps 50,000? The symptoms you should watch for are (in this order):
1) streaks of toner not being cleaned from the drum
2) the drum blade may flip, again causing the same drum cleaning issues.
3) loud noise when the drum begins to be difficult to turn and the drum drive coupler jumps, accompanied by paper jamming.


Those are the risks. =^..^=

[teckat]

Re: Canon ir1024 image unit remanufacturing problem

Reminder to poster;
U can never turn an assembly by hand to /test & simulate the exact speed the
Printer turns it.
That why it is diffulcult to identify worn gears or binding.

[nemonavicusrino]

Re: Canon ir1024 image unit remanufacturing problem

Reminder to poster;
U can never turn an assembly by hand to /test & simulate the exact speed the
Printer turns it.
That why it is diffulcult to identify worn gears or binding.

You have right. The couple is not the same, i know, but i tested in this way to see if a visible problem ocurs (i mean a serious problem to other gears - not gears from the imaging unit).
i not rotated assembly by hand, only held cilinder by hand in the same position where it come when imaging unit it is mounted. After that i manualy pushed push buton that confirm to printer that back door is closed.
The assembly was spined electricaly when the printers turn on and before printer sense that cilinder is not realy here in real sense - metal bending from image unit is not here and electricity was not conducted on cilinder. Even in this way, i sensed some voltage on my hand, i think some 30 - 40 V.
Thank for your input.

[Blizzoo]

Re: Canon ir1024 image unit remanufacturing problem

I made some few image unit remanufacturing and i had noises like you have.In my case the noise came from that black gear mounted on toner agitating mylar,take a look at that.If the I.U runs without that gear take of like you simulated after a while the waste toner will appear on the page because it's not mixed up corectly into the waste chamber.
Once i had that agitating mylar stuck and hard to rotate because the waste was full,I take it off,clean the ends,bushings,mounted and worked well,i didn't have worn gears at that point.
Salutari din Romania