A drum type paper stock refine screen is provided which is capable of efficiently filtering a refined paper stock to the outside of a laterally suspended rotary drum and efficiently discharging foreign matter to the outside of the drum while rotating the drum. This invention describes means of suppressing the effects of the undesired polarization by using a class of photosensitive media that are insensitive to that polarization and more sensitive to the polarization conveying the desired image contrast as well as by means of optical configurations relevant in the context of semiconductor manufacturing using photolithography. Since the reference fuse circuit and the current-to-voltage converter section are shared by the information-writing fuse circuits, the circuit area of the fuse module is greatly reduced. Upon completion of the first stage the protocol enters a second stage which includes the step of converging the equalizer and the timing recovery system of the master, converging the noise reduction system of the slave, freezing the timing recovery system of the slave, and resetting the noise reduction system of the master. The guide wire may have a first end and a second end both extending from a region proximal of the proximal end opening. A multiple-edge longitudinal recess, especially a hexagonal recess, extends into the drive shaft from the output-side front end thereof.