Kyocera 7353ci magenta problems

[kuby]

Have a customer that has a 7353ci that the Magenta has a streak in it. The tech changed the drum unit, developer unit, ran refresh on both, etc. the machine is level, and cleaned. The transfer belt and the secondary transfer roller also replaced.t only does it on the Magenta. Have a different machine that the Magenta is doing about the same thing only worst. What is it with the Magenta?
Only OEM toners ever used.

Firmware is up to date, even reloaded the full version.

Help would be appreciated. We have done everything we can think of.
Thanks

" See streaks at the bottom of the page " 11 x 17 sample so the streaks on at the back of the machine.

[dalewb74]

Re: Kyocera 7353ci magenta problems

you have cleaned the optics? the sensors above the ITB? i have seen weird stuff like that before and seems it was power related. just me adding my 2 cents worth.

[Lunatech]

Re: Kyocera 7353ci magenta problems

I've seen this multiple times. the first time I saw it took me a bit of time to figure out but it was the DV unit. No matter how much I cleaned it and surrounding components I couldn't keep it from happening. After I replaced the DV unit it all stopped.
For what it's worth I hope this helps.

[kuby]

Re: Kyocera 7353ci magenta problems

Already replaced the drum unit, developing unit, transfer belt, secondary transfer roller, cleaned the machine, ran updates, refresh drum and developer, etc.

[Lunatech]

Re: Kyocera 7353ci magenta problems

Sounds like you need a good priest.

[tmaged]

Re: Kyocera 7353ci magenta problems

I'd guess it's something on the laser slit glass. You could tape it or the main charge to see if it goes away.

[KYO_OEM]

Re: Kyocera 7353ci magenta problems

well known for me with CMY at once
let`s try the following:
1. reset color registration by U467 (set to OFf/ leave SP/ enter SP again and set back to ON)
2. Run U469
let us know the result
Unbenannt.JPG

[Ropariva]

[KYO_OEM]

Re: Kyocera 7353ci magenta problems

our techs finally replaced LSU units and still same issue.
At least wrong registration values by U468 found.
Feel free to clean or change laser unit, but at first i would reset color reg values in U467.
Because we did not get maintenance report to check values from U468 for further analysing, follow up the enclosed workflow i shared with our techs.

[Ropariva]

Re: Kyocera 7353ci magenta problems

our techs finally replaced LSU units and still same issue.
At least wrong registration values by U468 found.
Feel free to clean or change laser unit, but at first i would reset color reg values in U467.
Because we did not get maintenance report to check values from U468 for further analysing, follow up the enclosed workflow i shared with our techs.

[KYO_OEM]

Re: Kyocera 7353ci magenta problems

U467 procedure also usefull for other systems.
At some system you find initialize button in U468/ e.g.TA2550ci
For small A4 color systems special FRPO commands needed, you has to ask kyo tech for this.
e.g. M6635cidn after exchange from transfer belt you has to run the reg-adjustment up to 15 times....

[Ropariva]

Re: Kyocera 7353ci magenta problems

U467 procedure also usefull for other systems.
At some system you find initialize button in U468/ e.g.TA2550ci
For small A4 color systems special FRPO commands needed, you has to ask kyo tech for this.
e.g. M6635cidn after exchange from transfer belt you has to run the reg-adjustment up to 15 times....

Yes, have had that issue with the 6635. Takes some time to recover.


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[kuby]

Re: Kyocera 7353ci magenta problems

U467 procedure also usefull for other systems.
At some system you find initialize button in U468/ e.g.TA2550ci
For small A4 color systems special FRPO commands needed, you has to ask kyo tech for this.
e.g. M6635cidn after exchange from transfer belt you has to run the reg-adjustment up to 15 times....

**********************************
Ran this 15 times and no change at all.

[KYO_OEM]

Re: Kyocera 7353ci magenta problems

You has to ask kyo tech for reset command in this case
Have hat same problem on several systems
This was the reason why I asked kyo for this, after several reminders i received capture files based on first 3 digits from serial numbers.
1 for 30ppm, 1 for 35 ppm, 1 for 40 ppm Mebius E systems and so on...
KDC will not implement reset U468 or U467, because not needed in field....

[Rpizzle]

Re: Kyocera 7353ci magenta problems

Already replaced the drum unit, developing unit, transfer belt, secondary transfer roller, cleaned the machine, ran updates, refresh drum and developer, etc.

I'm experiencing a similar issue. This unit is a 8353ci experiencing color background magenta for sure and i feel like i see some yellow also.
I have also replaced everything above. even swapped the guts. finally talked to kyo did u476 then calibrated. cleared right up prints look perfect.

1000 prints later/customer changed the calibration preference to long. I'm not yet sure if that is related in any way have to go back tomorrow.
Not entirely sure how clearing this would correct this problem in the first place, but it did. If I already calibrated it after 476 off and it was fine how would a midrun calibration cause the machine to go haywire..

I see someone referring to a ITB sensor I'm not familiar with that reference.
My thoughts are that for some reason the machine is deciding to change its transfer voltages in some way. Just can't pin this one down pulling my hair out over this one.

Don't have any great photos.