Has anyone ever experienced poor print quality on the Avalon FM50 fetal monitor? The FHR read out starts out fine, but then slowly becomes fainter and fainter.
Things I have tried: Thorough cleaning of printer head and roller, adjusting the intensity both up and down, changing the paper, changing the line thickness, changing the recorder speed and even swapped out recorder for a brand new one (performed cal after). The black and grey lines on the self test are awful (very choppy and faded in certain sections). I'm not sure how to proceed at this point. Any advice or suggestions on how to fix this issue is greatly appreciated.
Equipment: Philips Avalon FM50