1390/1400 uneven printing on Light cyan cart. weird patter n

bene123

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Hi all I need advice on this I did purge prints for the light cyan (LC) outlet

on a supposedly full solid color page, there are uneven micro-banding , a single pale streak on the top and significant more microbanding at the start and end of print.

I did a tone gradient test as well... the uneven tone pattern is consistent over multiple sheets

http://i627.photobucket.com/albums/tt360/beneAlpha/L1010200.jpg

I'm guess the following incidents might be useful.

My first time loading ink had spill some ink (minor ink overflow) this killed the chip in the refillable cart.
I transported the print in my car boot with only the LC cart loaded with ink to let the refill cart man i bought from check.
Letting the printer sit (turn off) for 5 hours then reprinting showed that there was more banding than before. second print better.

Please help!
 
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