kyocera taskalfa 3550ci - black dots in the prints

[KYO_OEM]

Re: kyocera taskalfa 3550ci - black dots in the prints

@mga
"Well Done" ???
I don`t think so!
We are talking about system with a-Si drums!
Very often technicians interchanged drums or MCs between BK and YE because of small dots.
(Yellow dots are less visible...)
But if you don`t run ALL needed adjustments after exchange/ interchange, you`ll get other problems in near future!
Also remember, diff. drums are installed from factory on yellow position only!
If you interchange MC only. you has to run complete MC workflow.
But in this case i prefer to run U952/ Execute/ MK-A to get correct settings for all current inbuilt components.

[BillyCarpenter]

Re: kyocera taskalfa 3550ci - black dots in the prints

@mga
"Well Done" ???
I don`t think so!
We are talking about system with a-Si drums!
Very often technicians interchanged drums or MCs between BK and YE because of small dots.
(Yellow dots are less visible...)
But if you don`t run ALL needed adjustments after exchange/ interchange, you`ll get other problems in near future!
Also remember, diff. drums are installed from factory on yellow position only!
If you interchange MC only. you has to run complete MC workflow.
But in this case i prefer to run U952/ Execute/ MK-A to get correct settings for all current inbuilt components.

Interesting. Did not know that. So, you're saying if U952/Execute/MK-A is run that it will automatically run all of these: U119/ U930/ U140*/ U469/ U127/ U464/ U469/ U412/ U464/U410/ U251?

Is that correct?

I have so questions about this. Are you factory trained on this model? I'm not.

[KYO_OEM]

Re: kyocera taskalfa 3550ci - black dots in the prints

Yes, i think i am well trained.
For a long time i went out to train distribution and dealer technicians.
Instead of trainer, now i am last level supporter, member from our own product quality management.
Because of this i has to know exactly what`s going on inside from a Kyocera copier system. (and i am not Kyocera stuff)
BY the way:
system will not run all these adjustments automatically, you has to run each point in the right way.

System will show you each needed adjustment in the right way and you can`t forget any important adjustment.

[KYO_OEM]

Re: kyocera taskalfa 3550ci - black dots in the prints

Take care for this:
How to run adjustments.pdf

[BillyCarpenter]

Re: kyocera taskalfa 3550ci - black dots in the prints

Take care for this:
[ATTACH=CONFIG]46580[/ATTACH]

Quick question. I know you're supposed to run all those settings when you replace the drum or DV unit. But do you really need to run them when replacing a MC roller? I don't see how replacing the MC roller would throw the settings out of adjustment. I may very well be wrong.

[KYO_OEM]

Re: kyocera taskalfa 3550ci - black dots in the prints

If you interchange the MC between YE + BK you get diff. counters.
e.g.
typical usage 80% BK and 20% color
MC from BK= 80.000 pages
MC from YE= 20.000Pages
System is inceasing power supply for BK + YE depended to the lifetime from each MC
up to 50.000 pages= xV powersupply for MC, >50.000 pages= x+5V, >100.000 pages=x+10V
The surface from the MC will aging depended to the usage/ pages this is the reason for increasing.
If you now didn`t run the adjustments, YE + BK gets wrong voltages and finally you`ll get problems because MC for YE needs more power and MC for BK need less power.
By the way:
Why systems in this spcial case the Alphard range is showing very often C510x if you forgot to execute U930 after exchange from DK or MC?
The answer you can read above

[BillyCarpenter]

Re: kyocera taskalfa 3550ci - black dots in the prints

If you interchange the MC between YE + BK you get diff. counters.
e.g.
typical usage 80% BK and 20% color
MC from BK= 80.000 pages
MC from YE= 20.000Pages
System is inceasing power supply for BK + YE depended to the lifetime from each MC
up to 50.000 pages= xV powersupply for MC, >50.000 pages= x+5V, >100.000 pages=x+10V
The surface from the MC will aging depended to the usage/ pages this is the reason for increasing.
If you now didn`t run the adjustments, YE + BK gets wrong voltages and finally you`ll get problems because MC for YE needs more power and MC for BK need less power.
By the way:
Why systems in this spcial case the Alphard range is showing very often C510x if you forgot to execute U930 after exchange from DK or MC?
The answer you can read above

That makes sense. I believe what you're saying is that the machine will compensate for MC roller that was swapped due to the fact that it's been used more thus the voltage is raised to compensate for the wear and tear.

That's some good stuff. Thank you.

[mga]

Re: kyocera taskalfa 3550ci - black dots in the prints

[QUOTE=KYO_OEM;1550235]@mga
"Well Done" ???
I don`t think so!

FYI I said well done if you read thread and see attachments this is a non trained engineer on Kyocera he stripped the drum unit with is never done by me anyway I just replace when having c/q and got the machine giving good copy quality on black without fitting any parts.

Its like giving someone a pat on the back

[tsbservice]

Re: kyocera taskalfa 3550ci - black dots in the prints

FYI I said well done if you read thread and see attachments this is a non trained engineer on Kyocera he stripped the drum unit with is never done by me anyway I just replace when having c/q and got the machine giving good copy quality on black without fitting any parts.

Its like giving someone a pat on the back

Yes indeed the guy didn't say it will stay that way for long time. He just wanted to have clean BW prints waiting for spare parts. I will do the same btw if it was me.
So as short term workaround that was pretty good job.
That said I truly understand and appreciate what KYO_OEM is talking about.

[mga]

Re: kyocera taskalfa 3550ci - black dots in the prints

Yes indeed the guy didn't say it will stay that way for long time. He just wanted to have clean BW prints waiting for spare parts. I will do the same btw if it was me.
So as short term workaround that was pretty good job.
That said I truly understand and appreciate what KYO_OEM is talking about.

Agreed

[Gab]

Re: kyocera taskalfa 3550ci - black dots in the prints

Hello at all, I have a Kyocera Taskalfa model 3550ci, and I would like to solve the annoying problem of black dots in the prints.
Today I cleaned all the developer drums ( the ones with the black drum) and the fuser blade...but I didn't fix it
The dots are in one part of the sheet at a length of about 28mm. Carlo

The problem is at charge roller . If you check it carefully you will notice that at some points are pressed .
Replace charge roller

[changer74]

Re: kyocera taskalfa 3550ci - black dots in the prints

Hello guys, I wanted to thank you for your assistance. The ro charge rollers have arrived, I have replaced them and now everything is ok, the print is perfect and clean. I am attaching some photos of worn parts and with the new rollers. For the change rollers I opted for a competitor product, unfortunately the single charge roller has a high cost and considering that it is a photocopier that I had already bought used I opted to save money. They probably won't last as long as the originals but I'm happy ... a bit like when buying competitor spare parts for the car.

[blackcat4866]

Re: kyocera taskalfa 3550ci - black dots in the prints

Congratulations on your success. =^..^=

[StratManDan]

Re: kyocera taskalfa 3550ci - black dots in the prints

The issue is the charge roller. Somewhere on the charge roller, there's a little dent that causes the black dots. Remove the charge roller, and inspect it carefully, turning it slowly as you inspect it. Somewhere on it, you will find a faint, little dent. A new charge roller will fix the issue.

[Phil B.]

Re: kyocera taskalfa 3550ci - black dots in the prints

The issue is the charge roller. Somewhere on the charge roller, there's a little dent that causes the black dots. Remove the charge roller, and inspect it carefully, turning it slowly as you inspect it. Somewhere on it, you will find a faint, little dent. A new charge roller will fix the issue.

yes that was the fix stated earlier