IR2525 copy quality problem.

[campy]

Ok I have a very strange one and have attached a scan. Anyway here is the problem, when I make a two sided copy the second side comes out blurred on 1/2 of the page. It's the rear side of machine that it appears on. Now you would think it has something to do with the duplex unit but if you make a one sided copy and take that copy and put it back in the tray it does the same thing. I have tried a different fuser assly and transfer roller and no difference. It also does this when you print a two sided print. For all you guys that were around when drums were selenium and you had moisture on the drum is what the copy/print looks like, but only on the second side. What I don't understand is if you are making multiple single sided copies they are fine.
Stumped after 42 years.

[mosey1100]

Re: IR2525 copy quality problem.

Ok I have a very strange one and have attached a scan. Anyway here is the problem, when I make a two sided copy the second side comes out blurred on 1/2 of the page. It's the rear side of machine that it appears on. Now you would think it has something to do with the duplex unit but if you make a one sided copy and take that copy and put it back in the tray it does the same thing. I have tried a different fuser assly and transfer roller and no difference. It also does this when you print a two sided print. For all you guys that were around when drums were selenium and you had moisture on the drum is what the copy/print looks like, but only on the second side. What I don't understand is if you are making multiple single sided copies they are fine.
Stumped after 42 years.

The sample is a test page from a IRADVC5250 it looks pretty good.

[madas]

Re: IR2525 copy quality problem.

Hi Campy
You may have tried these ideas.
The 1st things I would try is different fresh paper, or try and stop the print mid way and check the drum image to see if it is blurred on that

I don't see it being anything to do with the duplex unit as that just turns the paper ready for the second pass over the drum so should not have any effect on print quality.

Be interested for the fix for this, I'm quite new to canon machines and any fix for odd faults are always of interest.

Good luck

Les

[campy]

Re: IR2525 copy quality problem.

The sample is a test page from a IRADVC5250 it looks pretty good.

That is what I am using for a test sheet. Look at the top half closely as compared to the bottom.

[mido]

Re: IR2525 copy quality problem.

if you print one side, is it ok?
I think you must check these things:
* moisture paper
* moisture on the drum surface
* developing cylinder defected, check if the latent image on the drum surface is equal in the density of the toner ,

Good Luck

[campy]

Re: IR2525 copy quality problem.

if you print one side, is it ok?
I think you must check these things:
* moisture paper
* moisture on the drum surface
* developing cylinder defected, check if the latent image on the drum surface is equal in the density of the toner ,

Good Luck

One sided copies are fine.

[Mohammedirfan]

Re: IR2525 copy quality problem.

Ok I have a very strange one and have attached a scan. Anyway here is the problem, when I make a two sided copy the second side comes out blurred on 1/2 of the page. It's the rear side of machine that it appears on. Now you would think it has something to do with the duplex unit but if you make a one sided copy and take that copy and put it back in the tray it does the same thing. I have tried a different fuser assly and transfer roller and no difference. It also does this when you print a two sided print. For all you guys that were around when drums were selenium and you had moisture on the drum is what the copy/print looks like, but only on the second side. What I don't understand is if you are making multiple single sided copies they are fine.
Stumped after 42 years.

Hi you have to check drum, PCR, toner and Scanner.

[campy]

Re: IR2525 copy quality problem.

Hi you have to check drum, PCR, toner and Scanner.

What everyone has to keep in mind that one sided copies are fine. If you make a one sided copy and put it back in the tray to make the second side like in the old days before auto duplexing is when you have the problem, as well as on auto duplexing. The copier doesn't know you put it in the tray and thinks it's just another one sided copy. In 40 plus years servicing copiers I don't think I have seen anything as strange as this and I have seen a lot.

[campy]

Re: IR2525 copy quality problem.

It was something in the right door assembly causing the problem. We were given a parts machine with the purchase of other equipment and we swapped doors. I haven't had time to figure out what part is causing it.

[aco.bk]

Re: IR2525 copy quality problem.

Transfer Roller or Static Eliminator

[mosey1100]

Re: IR2525 copy quality problem.

Check the sensor flag that is in behind the transfer roller assembly it sometimes pops off causing duplex jams


Sent from my iPad using Tapatalk

[campy]

Re: IR2525 copy quality problem.

Transfer Roller or Static Eliminator

I already replaced the transfer roller.

[campy]

Re: IR2525 copy quality problem.

Check the sensor flag that is in behind the transfer roller assembly it sometimes pops off causing duplex jams


Sent from my iPad using Tapatalk

I appreciate your reply but nowhere did I say it was jamming.