Ricoh Aficio MP 301 - smudged line at the top back side of the page.

[Like1mS]

Remove the PCU and clean the Quenching Lamps on the upper left side. You can change SP 2996 to a 1 for better transfer roller cleaning. Your sample is showing heavy background on the backside of the print and is indicative of both a need for the drum unit and transfer roller replacement.If the Quenching lamp assy is not cleaned after replacement of the transfer roller and PCU you will have a shorter life on the PCU and roller.

Good luck

Thanks Brianneoe, cleaning the Quenching Lamps helped, the pages come out clean. I also set SP 2996 to 1. I will try this on a couple more machines and post back.