Oki C5300 LED

[blackdog]

Hey Happy New Year!
Got an issue with one or more of the led light bars on a c5300.
I am pretty sure magenta is the bad boy but looking for your input on the proper way of testing each one.
Transfer belt has 44% left to go and looks fine, as do pcu's.
Box has 200k on it.
Thanks

[leo34staffs]

Re: Oki C5300 LED

LED Heads are interchangeable, so i would do a swap first to see if fault moves to a new colour...hope this helps.

[blackdog]

Re: Oki C5300 LED

LED Heads are interchangeable, so i would do a swap first to see if fault moves to a new colour...hope this helps.

Thanks, swapped out with black, printed same color pic in grayscale with same results.
Now I'm thinking I should have printed a new all black formatted doc.?

[JustManuals]

Re: Oki C5300 LED

This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:

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Paul@justmanuals.com

[Eric1968]

Re: Oki C5300 LED

Thanks, swapped out with black, printed same color pic in grayscale with same results.
Now I'm thinking I should have printed a new all black formatted doc.?

Post a scan of the image. That will make it easier to see what's wrong.

[blackdog]

Re: Oki C5300 LED

Post a scan of the image. That will make it easier to see what's wrong.

I asked customer to print a newly formatted black image and results were positive.
This was done after I had swapped out light bars. So I am 85% sure that the magenta light bar is bad boy.
By the way, back to my original question, is there a way of testing these light bars. Copiers have this type test simulation for their lamps etc. so I imagine there is some sort of sim.

[Eric1968]

Re: Oki C5300 LED

I asked customer to print a newly formatted black image and results were positive.
This was done after I had swapped out light bars. So I am 85% sure that the magenta light bar is bad boy.
By the way, back to my original question, is there a way of testing these light bars. Copiers have this type test simulation for their lamps etc. so I imagine there is some sort of sim.

There's no testing procedure to test the LED-Heads. If they fail you can get Fatal Error 131,132,133,134 (KYMC), which is a communication error between the LED-Heads and the engine board.

There are some LED-Head settings in the machine. You can access them using the Maintenance Utility. Those settings deal with correction data for each LED-Head, because each LED-Head is unique. I never used it. Replacing is easier.

[blackdog]

Re: Oki C5300 LED

There's no testing procedure to test the LED-Heads. If they fail you can get Fatal Error 131,132,133,134 (KYMC), which is a communication error between the LED-Heads and the engine board.

There are some LED-Head settings in the machine. You can access them using the Maintenance Utility. Those settings deal with correction data for each LED-Head, because each LED-Head is unique. I never used it. Replacing is easier.

Got it, and a big thanks good buddy.