Kyocera Taskalfa 2551 back of the printed sheet is dirty

[Gab]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

it is the toner. use genuin but if you insist for combatible use one with good quaity and use only this
specific toner in the future. but now, you have to clean any resedues of old toner from dev unit and drum unit , perform u130 . this first time after clean prefer to use genuin toner. you can later use combatible but good quaity and use only the sa9me toner now on. if you change the toner , even genuin toner, perhaps you have the sa9mer probe9m.

[Casian55]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

If you get same issue with other belt/ new belt, i think we must talk about missing cleaning voltage from HVU-2 PWB.
Remove left cover, unscrew 4 screws from PWb mount and check if ITB contacts for oxidation and correct fitted connector.
Additionally you can open the conveying unit, use a piece of paper for the safety switch and run calibration by systemmenue.
Watch the turning belt and maybe you will see some dust on it.
If we are missing the cleaning voltage, brush needs too long time for removing remaing toner.
You also can switch off U464/ Permission/ Calib for testing, in this case your background will not appear, i hope.....
Don`t forget YC 7 on engine pwb at least, but i hope for you that it`s not needed...

Hi, I've checked the contacts for oxidation and the correct fitting of the connector, both things look perfect.
I've also tried modifying the U464 settings with many combinations, unfortunately no changes..

[KYO_OEM]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

Could you please upload U000 stored as txt file for checking some internal values?
If you still get the same dirty background and offset on the first sheets, we must have a problem with transfer cleaning pipe.
Change U464/Permission from "ON" to "OFF"
Open the conveying unit and lock the security switch for running system with open conveying unit.
Switch OFF and ON the system.
After restart run calibration by systemmenue/ during running check the belt surface.
When calibration finished, run laser scanner cleaning twice.
Close conveying unit and check printout for dirty background. (Normally NO dirt visible...)
Print out eventlog and check for C7620, C761x.

[tech07]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

For everyone's benefit, please post the solution for this issue when resolved. It helps all of us.

[camoll]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

This is caused by the transfer belt, but in case you have replaced the transfer belt then and still the problem re-occurs then you another cause for this is the toner.


Kindly ensure that you are using the right toner (genuine toner)

I have seen a scenario where customers refill their toners and since the refill toner is not standardized it ends up cloging.

if it is caused by the toner then you need to do skyshot of black so as to empty the developer while you insert a new genuine toner


Best of luck

[Gab]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

IS the toner OEM? If you used not genuin toner and then genuin , it doesn;t fix the problem .
Clean all the old toner (from drum , etx) and execute U130 (the same if you use only genuin toner).

[mtcchuck]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

Any resolution to this problem? We have a 306ci with similar issues. We have done a complete maintenance and problem still occurs. Using OEM toner.

[blackcat4866]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

Any resolution to this problem? We have a 306ci with similar issues. We have done a complete maintenance and problem still occurs. Using OEM toner.

Samples? =^..^=

[KYO_OEM]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

@mtcchuck,

if you get it on 306ci, it`s a nightmare because cleaning drive for belt won`t work anymore.
If you want`s to solve it, follow bulletin 2R4-0030 (I155)
(Same procedure to get entrance to the teeth belt/ driving gear)
If you are a lucky guy, shutter from belt won`t open because of deformed metal plate on left side....

[nicotech]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

@KYO_OEM

Thanks for your informations. I've got the same problem on a 306ci

[lukemart]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

I'M SURE that the back of the sheet is stained by the transfer roller. It gets loaded with toner, then after one full rotation of the roller, it is deposited on half of the back of the sheet....

[Tom]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

Both Raparive and Gab mentioned toner, but you never said if it was oem or aftermarket. I haven't seen this on the 2551 but I've never used aftermarket in them since I learned on the earlier models that in some cases cheap toner could cause this problem. Both the 255/6525 and their color counterparts the 255c/8252 I learned that lesson the hard way. Didn't happen often, but I finally troubleshot the problem down when I swapped out developer units with oem toner already in them and problem went away. First side of copy looked fine, second side had backgound bands on it even though I wasn't doing double sided. Oem toner fixed the problem I still occasionally use aftermarket to save money with a few customers that never do 2 sided and don't care what the back looks like, but had to switch to oem for everyone else, wasn't worth the risk. Time is money also.

[lukemart]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

Both Raparive and Gab mentioned toner, but you never said if it was oem or aftermarket. I haven't seen this on the 2551 but I've never used aftermarket in them since I learned on the earlier models that in some cases cheap toner could cause this problem. Both the 255/6525 and their color counterparts the 255c/8252 I learned that lesson the hard way. Didn't happen often, but I finally troubleshot the problem down when I swapped out developer units with oem toner already in them and problem went away. First side of copy looked fine, second side had backgound bands on it even though I wasn't doing double sided. Oem toner fixed the problem I still occasionally use aftermarket to save money with a few customers that never do 2 sided and don't care what the back looks like, but had to switch to oem for everyone else, wasn't worth the risk. Time is money also.

Yes you are right thanks for the reply.!

Regards.

[roundcubeeight]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

How do I get my Kyocera printer to print in color? shareit app vidmate

[Mahmz_ZA]

Re: Kyocera Taskalfa 2551 back of the printed sheet is dirty

Hi

Ive also come across this before ..... there was a TI released which basically advised replacing the parts pipe trns assembly that would be the small mechanisim that transports waste toner fromthe belt into the waste toner box....also occurs with generic toner use , would also advise ...
1 vclean the itb cleaning unit - strip and vaccum out then replacing if no success