A new putative class action lawsuit was filed in Pennsylvania against Ricoh USA Inc. for defects in the aperture control mechanism of the Pentax K-30 and Pentax K-50 cameras. The defect reportedly leads to consistently black or dark images:
A similar lawsuit was filed in New York in 2020 and was later dismissed.
Here is a copy of the filing:
New class-action lawsuit was filed against Ricoh USA for aperture issued in the Pentax K-30 and K-50 camera… by NikonRumors on Scribd
Via PentaxRumors