QSS-2901 photo color issues

[ohp1350]

Hi,

I have the Noritsu QSS-2901 and have been having issues with it recently regarding the color of the photos that print out.
Whenever I print a photo with 5'' paper (i.e. 3x5's, 5x7's), the photo comes out normally, as seen on the attached photo (3x5 from 5'' paper).
However, when I try to print a photo 12" paper(i.e. 8x10, 11x14, 12x16), the photo comes out with a blue tint throughout the photo, as seen on the second photo (8x10 from 12'' paper).

The photos had been printing fine until a couple of days ago, and the rolls have not been replaced recently.

I've done the daily setup, cleaned out all the chemicals in the machine, and replaced filters. Is there something I'm missing?

Thank you for your help

[haphandinh]

Carry out Emulsion Number Change for 12" paper.

[ohp1350]

I fixed my problem following your advice.
Thank you(haphandinh) very very much.

[Minilab service]

If in some time problem return then drive voltage pcb is faulty and it is necessary repair it. Many times had repair this board due uniformity or color instability.