kyocera taskalfa 3550ci - black dots in the prints

[Ropariva]

[changer74]

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

Thanks for your advice Phil, as soon as I have time I disassemble deeper and try to clean the Primary charge Roller. I have the polish, degreaser and dust cloths .. I had some doubts about using the degreaser but if you tell me that I can use it ok.
Today I also spent a lot of time cleaning the tools that I used in the first cleaning phase (vacuum cleaner, rags, masks, gloves)
and also to clean all surfaces near to the worktops ... for not to mention the bathroom sinks ... toner dust . Although I have taken many precautions they still disperse.
For now I order the 4 rolls, so as soon as they arrive I open and clean the PCR and everything else that I will can.
However, thinking about it, I notice that the machine wraps the sheet lengthwise and the distance between the dots is 38mm, which means that the problem lies with a roller with a diameter of 19mm because if I fold the sheet the points recombine. So if I have a small defect on a point of a roller, the rotation will propose it to me again over the entire width of the sheet.
At this point the offending rollers are the black one and the magenta one as I don't have in the prints blue or yellow points.

[tech07]

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

Drum charger rollers for sure

[Phil B.]

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

Thanks for your advice Phil, as soon as I have time I disassemble deeper and try to clean the Primary charge Roller. I have the polish, degreaser and dust cloths .. I had some doubts about using the degreaser but if you tell me that I can use it ok.
Today I also spent a lot of time cleaning the tools that I used in the first cleaning phase (vacuum cleaner, rags, masks, gloves)
and also to clean all surfaces near to the worktops ... for not to mention the bathroom sinks ... toner dust . Although I have taken many precautions they still disperse.
For now I order the 4 rolls, so as soon as they arrive I open and clean the PCR and everything else that I will can.
However, thinking about it, I notice that the machine wraps the sheet lengthwise and the distance between the dots is 38mm, which means that the problem lies with a roller with a diameter of 19mm because if I fold the sheet the points recombine. So if I have a small defect on a point of a roller, the rotation will propose it to me again over the entire width of the sheet.



At this point the offending rollers are the black one and the magenta one as I don't have in the prints blue or yellow points.

WHERE ARE THESE ROLLERS? in the dev units?

i never fold print outs to find diameter .. i roll the paper up from 1st defect to second that should be the diameter of the roller in question.

another way is to measure the same defect spots with a MILLIMETER ruler.. that ruler should be small enuff to give accurate measurements.

the developer MAG roller should have complete coverage across it.. and VOIDS missing in coverage could mean: something is blocking the doctor blade from allowing toner to cover that area.

IF you want to clean the mag roller I would suggest a BRAND NEW scrubby pad ( green ones work best ) knock/scrape the roller free of toner and scrub lightly to remove spots. YOU DON'T want to mar the surface of the mag roller other problems will pop up

VOIDS in toner coverage: take a business cards and run it under the doctor blade from front to back of the dev unit.. spinning the roller as you make a pass... this should remove the blockage .. keep rotating it to make sure the blockage is gone. ** NOTE if you can get dev powder and have the vacuum.. vacuum the dev unit out and follow STEP BY STEP the dev powder replacement .

sorry for the way I treated you in previous comments. We get alot of end users that don't know their ass from a hole in the ground and expect us to to fix it over the internet . I will be happy to give you rep points for my lack of understanding your knowledge and competency.

[BillyCarpenter]

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

Your problem be a Mark on the charge roller magenta and black basic stuff also be nice and upfront you will get more help

I agree that it's probably the charge roller. But I don't have an engineering degree so take it with a grain of salt.

[Phil B.]

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

I agree that it's probably the charge roller. But I don't have an engineering degree so take it with a grain of salt.

knowing the way most senior techs feel about engineers ( at least the copier design engineers ) that is more than likely a PLUS in the win column for you!

glad to have you on board here.

[changer74]

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

again .. forget the degrees, please .. I have many colleagues who not know how to hang a nail on the wall, figure if you tell him to open a photocopier :-)

[changer74]

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

One info, in part list catalog (I have 2011 part list catalog) the code it's MC-8505 and not MC-8720 ...but it's same piece ?


My machine was product in AUGUST 2012 - machine no. N2k2804117- CODE no. 1102LN3NL0


I enclose some photos of when I detached and cleaning the developer unit and drum unit

[BillyCarpenter]

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

It appears to me that you're attempting to find the problem by checking/cleaning everything in the machine. That's really not a good method. I mean, you may end up and finding the problem that way but you're taking the long road. What I would do is swap the black charge roller with the yellow charge roller and see if the the black dots are now yellow. Let us know.

[BillyCarpenter]

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

One info, in part list catalog (I have 2011 part list catalog) the code it's MC-8505 and not MC-8720 ...but it's same piece ?


My machine was product in AUGUST 2012 - machine no. N2k2804117- CODE no. 1102LN3NL0


I enclose some photos of when I detached and cleaning the developer unit and drum unit

Here's the part you're looking for:


Kyocera TASKalfa 3551ci Main Charge Assembly, Genuine (K1379)

[changer74]

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

It appears to me that you're attempting to find the problem by checking/cleaning everything in the machine. That's really not a good method. I mean, you may end up and finding the problem that way but you're taking the long road. What I would do is swap the black charge roller with the yellow charge roller and see if the the black dots are now yellow. Let us know.

the photos I posted are from a few days ago, when I disassembled the machine to clean it, before writing in the fourm, I know very well that there is the problem, now I have to order the spare parts because here ( italy-Sardinia) there isnt nothing.

Excellent idea to swap the rollers, I could do it (waiting for the replacement) with the yellow color that for now it no has problems ... the black stains all my prints ... tonight I do. thanks: D

[BillyCarpenter]

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

Just be careful taking stuff apart. You have no experience and it's easy to introduce a problem to the machine that wasn't there when you started. Good luck.

[Scott]

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

90% of all call backs are created by the technician, BE CAREFUL

[changer74]

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

I made the change, I put the yellow roller in place of the black .... now the dots come out yellow .. so I confirmed that the problem is the rubber loading rollers which have small depressions. I overlapped the sheet and the position of the printed dots also coincides with the depressions of the rollers. Now at least if I print in black and white the print is clean

[mga]

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

I made the change, I put the yellow roller in place of the black .... now the dots come out yellow .. so I confirmed that the problem is the rubber loading rollers which have small depressions. I overlapped the sheet and the position of the printed dots also coincides with the depressions of the rollers. Now at least if I print in black and white the print is clean

Well done