This code is on an MJ1111 finisher attached to a 8508A. Noticed the buffer guides hesitating and not aligning equally front and back. Manually moved guides and noticed one of the buffer guides had the bushing that contacts the rail come loose. Managed to push the bushing back into holder...clean and lube rails but paper still hangs at buffer entrance enough to crease the paper and prevent even stapling. Any one else seen this issue and found a fix?