Hi everyone, newbie here. I am an end-user 
I own an estudio 2555c I got (for free!) from a company that went out of business. It has worked flawlessly for two years (the only maintenance I've had to do is replace toner). Yesterday it started to throw a yellow line on the top and bottom of all pages, no matter the print size (Letter, Tabloid, etc.). I am attaching a PDF scan of a sample print. Each page on the PDF contains a square of each ink (CMYK) with the last page containing a colorful image. I'm also attaching a photo of one of the pages because the scan shows the yellow lines with defined edges, but in reality they fade away into the center of the page. I don't know if this matters, but the lines were much wider yesterday. They were probably 2 inches each (top and bottom). As you can see from the scan, today they are much narrower; maybe 1/2 inch. I've also started to get yellow smudges on the page.
Any advise on what these lines are and which component(s) I need to replace? The printer has no errors and TopAccess shows the toner is good on all inks:
Thank you in advance for your help!
Jose

I own an estudio 2555c I got (for free!) from a company that went out of business. It has worked flawlessly for two years (the only maintenance I've had to do is replace toner). Yesterday it started to throw a yellow line on the top and bottom of all pages, no matter the print size (Letter, Tabloid, etc.). I am attaching a PDF scan of a sample print. Each page on the PDF contains a square of each ink (CMYK) with the last page containing a colorful image. I'm also attaching a photo of one of the pages because the scan shows the yellow lines with defined edges, but in reality they fade away into the center of the page. I don't know if this matters, but the lines were much wider yesterday. They were probably 2 inches each (top and bottom). As you can see from the scan, today they are much narrower; maybe 1/2 inch. I've also started to get yellow smudges on the page.
Any advise on what these lines are and which component(s) I need to replace? The printer has no errors and TopAccess shows the toner is good on all inks:
Yellow(Y) | ![]() ![]() |
94% |
Magenta(M) | ![]() ![]() |
46% |
Cyan(C) | ![]() ![]() |
72% |
Black(K) | ![]() ![]() |
64% |
Jose