We have an AR-153E machine that started making copies with this little pattern on them. When I showed up there was an L-1 code being displayed so I ran sim 14 and cycled the machine, the code showed up on restart. I went back to the shop and talked with gwaddle about it he came back with me cycled the machine and it came up fine no code, it also then copied fine. We cleaned the scanner shaft and re-greased it just to be safe, but could not figure out why this 0000aa004adc.pdf pattern showed up and why it then just went away. Anyone have any ideas so if it comes back we have an idea where to start?