Description: Returns or controls the manner in which the device performs I/O data buffering. I/O data buffering allows additional print job data to be buffered by the I/O sub- system in an effort to allow the computer sending the data to perform other tasks and to keep the PDL processing sub-system busy. eOff, I/O buffering is disabled. When eOn, I/O buffering is enabled and the IO-BUFFER-SIZE object controls the amount of memory set aside for I/O buffer. When eAuto, I/O buffering is enabled and the I/O buffer size is determined automatically by the device and the IO-BUFFER-SIZE object is not used. Additional information: In a PCL-only printer, all values may be set at any time. When PostScript is installed and there is less than 12M of memory installed, setting this object to eOn or eAuto will cause to be returned. When PostScript and a duplex unit are installed and there is less than 23M of memory installed, setting this object to eOn or eAuto will cause to be returned. When PostScript and 12M (23M with duplex unit) or more are installed, all values are valid, provided Resource Saving has not consumed the needed memory.