I know it seems odd, but the error is about positional data from the encoder sensor/encoder strip matching the data from the encoder disc in the scan motor. They go on a one-to-one match. If you look closely at the encoder strip with a magnifying glass, you will see it is equidistant black lines and clear spaces. The same on the encoder disc, which is buried in the bottom of the scan motor. They are the rulers for the printer, along with the encoder wheel for the feed motor. So, for every line on the encoder disc the scan motor reads, the encoder sensor needs to read one line on the encoder strip. If they are not in sync, i.e., one-to one, it gives the 0110 error code. It needs this precise positional data in order to fire the print head data at the precise location on the media where the data is in in the file. If this data doesn't match, the printer doesn't know EXACTLY where the printhead is and it errors out. Remember, you can print up to 1440 dpi, so if the data coordinates aren't exact, you can get crappy prints, if it even runs. This data has nothing to do with the scan motor turning, only when and how much to turn when it receives certain specific commands from the servo board, such as doing sheet setup and printing. Hope this makes sense...