bad image quality in mp1350

[mdfurqan2012]

Dear all,
I am facing image quality issue in mp1350 due to transfer belt, I try 2 original transfer belt of mp1350 and 2 transfer belt of aficio 2090 but no improvement in image quality then I try katun transfer belt for aficio 2090 whose result is good but for 150 thousand prints only so that becomes very expensive solution. Kindly guide me so I can use original belts.
did quality of original transfer belt is not good or I have some problem in my machine?
I would like to inform you that I am facing this issue in four machines.
please help me.

[rosspt]

Re: bad image quality in mp1350

Thanks for posting the issue and what you have already tried to do for troubleshooting. I'm wondering though what the actual image quality issue is? Toor light? Dark? Missing image? Distortion? It's good that you had the issue change when replacing the transfer but if the part is not genuine Ricoh and either parts are not making a full pm cycle then it could be something else. It could be how you are initializing the new parts, or something else is being touched or moved while removing/replacing the itb.

My guess without knowing what the image issue is would be:

Check for ground on the itb and where it connects inside on the back frame of the copier

Check filters and replace if needed. Improper air flow will cause toner blow and cause stupid charge issues in corona unit and drum housing.

Clean slit glass for precharge and make sure quenching lamps are clean.

Check for any possibility of drum vibration or incomplete contact between drum and it.

Good luck.

[mdfurqan2012]

Re: bad image quality in mp1350

Thanks for posting the issue and what you have already tried to do for troubleshooting. I'm wondering though what the actual image quality issue is? Toor light? Dark? Missing image? Distortion? It's good that you had the issue change when replacing the transfer but if the part is not genuine Ricoh and either parts are not making a full pm cycle then it could be something else. It could be how you are initializing the new parts, or something else is being touched or moved while removing/replacing the itb.

My guess without knowing what the image issue is would be:

Check for ground on the itb and where it connects inside on the back frame of the copier

Check filters and replace if needed. Improper air flow will cause toner blow and cause stupid charge issues in corona unit and drum housing.

Clean slit glass for precharge and make sure quenching lamps are clean.

Check for any possibility of drum vibration or incomplete contact between drum and it.

Good luck.

thanks for responding
image is distorted and every part complete its yield.
I am not understanding that ricoh's genuine belt did not complete its yield and not resolve image quality issue

[rosspt]

Re: bad image quality in mp1350

You are right to be confused. There should no reason for the ricoh part to fail or not fix the issue when a generic part seems to be working. I can almost guarantee you there is something else going on that is the root cause of your problem. If it is just that the parts are not making expected life, that could be normal depending on how the machine is being used and the operating environment.

What do you mean by distorted? Do you mean blurry? Skewed? Faded? Wavy?

You have the same issue in four machines right? You are either the most unlucky technician on the planet that all the ITBs in all your machines are defective, or something you are doing in maintaining these machines is causing the issue. Mixing ricoh and generic parts is concerning.

I would suggest complete itb unit replacement, not just a belt rebuild and see what effect that has but still wondering if the issue really is the itb and not somewhere else.

[mdfurqan2012]

Re: bad image quality in mp1350

You are right to be confused. There should no reason for the ricoh part to fail or not fix the issue when a generic part seems to be working. I can almost guarantee you there is something else going on that is the root cause of your problem. If it is just that the parts are not making expected life, that could be normal depending on how the machine is being used and the operating environment.

What do you mean by distorted? Do you mean blurry? Skewed? Faded? Wavy?

You have the same issue in four machines right? You are either the most unlucky technician on the planet that all the ITBs in all your machines are defective, or something you are doing in maintaining these machines is causing the issue. Mixing ricoh and generic parts is concerning.

I would suggest complete itb unit replacement, not just a belt rebuild and see what effect that has but still wondering if the issue really is the itb and not somewhere else.

Yes you right all 4 machines have same issue I face this first in one machine I check that by swapping unit first I development unit whose yield is almost end so I install new genuine developer but image quality is light then I swap itb unit from another machine issue resolved so I install genuine mp1350 itb one by one but image light on that then I install genuine aficio 2090 it works for 1800 prints after that issue occurs again after that I tried katun itb for aficio 2090 which is currently working almost 80000 prints and works fine but I have very bad experience of that itb in terms of yield.
kindly guide me where I did mistake.

[Tonerbomb]

Re: bad image quality in mp1350

why don't you post some images of the bad CQ you are seeing, There are many Ricoh experts here! As for myself I have run the transfer belt well past 2 million before replacment. when you do replace the belt you must clean all the internal rollers of the unit, and sometimes replace the brush that is next to the charge roller. Also check the bias terminal, it can wear completly through. A last resort would be the cBG powerpack, not the most liklly thing to fail in 4 machines at once...............

[vargue]

Re: bad image quality in mp1350

السلام عليكم ورحمته وبركاته first .transfer unite need special treatment.i encountered in this many times. i used original developer and drum and image after 200 or 300 become faint.changing toner suddenly may make contrast drop.and hands up developer and mixed with afew used developer amount.and clean transfer unit carfuly.and check toner gain. and see what is going on.hose.hopper can get down toner easly or clocked.and make toner rate high

[mdfurqan2012]

Re: bad image quality in mp1350

why don't you post some images of the bad CQ you are seeing, There are many Ricoh experts here! As for myself I have run the transfer belt well past 2 million before replacment. when you do replace the belt you must clean all the internal rollers of the unit, and sometimes replace the brush that is next to the charge roller. Also check the bias terminal, it can wear completly through. A last resort would be the cBG powerpack, not the most liklly thing to fail in 4 machines at once...............

dear
I did all tips of installation given by you clean complete unit including biasing rollers check continuity of bias roller then install new belt finally I find problem with belt as I described. One more thing image quality improved by force toner but only for 300 prints after that again image quality becomes light.
kindly guide me can we change transfer bias to higher value.

[rosspt]

Re: bad image quality in mp1350

Yes you right all 4 machines have same issue I face this first in one machine I check that by swapping unit first I development unit whose yield is almost end so I install new genuine developer but image quality is light then I swap itb unit from another machine issue resolved so I install genuine mp1350 itb one by one but image light on that then I install genuine aficio 2090 it works for 1800 prints after that issue occurs again after that I tried katun itb for aficio 2090 which is currently working almost 80000 prints and works fine but I have very bad experience of that itb in terms of yield.
kindly guide me where I did mistake.

I think you just solved your own issue. You said the first thing you touched was the development unit. You probably didn't get all the old developer out, didn't clean the mag roller correctly, used the wrong initialization setting, or something. At this point I would swap the entire development unit and see if that has any change or effect on the machine.

The unit replacement is because I don't know what else has been done to the machine already, good or bad, in the attempt to resolve the fading and you need a solid base again to troubleshoot the machine for future issues. You don't want to be chasing your tail jumping from one thing to the next and compounding underlying issues.

[mdfurqan2012]

Re: bad image quality in mp1350

I think you just solved your own issue. You said the first thing you touched was the development unit. You probably didn't get all the old developer out, didn't clean the mag roller correctly, used the wrong initialization setting, or something. At this point I would swap the entire development unit and see if that has any change or effect on the machine.

The unit replacement is because I don't know what else has been done to the machine already, good or bad, in the attempt to resolve the fading and you need a solid base again to troubleshoot the machine for future issues. You don't want to be chasing your tail jumping from one thing to the next and compounding underlying issues.

As mentioned in my post that developer yield is almost end so I have to replace developer. after swapping with another machine there is no improvement in image quality. I replace new developer as you mentioned clean mag roller and proper initializing that.

i properly rectified the issue causing by transfer unit so kindly guide me about that.