Lexmark Optra S 1620 User's Guide (7.1 MB) - Page 123

Using the Operator Panel and Menus Using Your Printer Serial Menu Selections (Continued) Menu Item Values and Functions of the Menu Items Serial Buffer Disabled Auto* 3K to maximum size allowed Job Buffering Your printer has a variable buffer size that can be changed from the operator panel. You can configure the size of the input port buffers to meet your system needs. The maximum size available for modification depends on the amount of memory in your printer, the size of the other link buffers, and if the Resource Save setting is On or Off. To maximize the range for the Serial Buffer size, you can disable or reduce the size of the parallel, network, Infrared, Fax, and LocalTalk buffers. The Auto setting indicates the printer selects the buffer size based on the total memory available. Changing the Serial Buffer setting automatically resets the printer. Off* On The Job Buffering menu item does not display if the formatted hard disk is defective, is Read/Write or Write protected, or if the Job Buffer Size is set to Disabled. 61 Defective Disk displays during printer power on. See 61 Defective Disk on page 189 for more information. Also, see Job Buffer Size on page 93. Job buffering lets you delay processing of a print job. The job is temporarily stored on an optional hard disk before being printed. This usually frees the host computer during the actual printing of a print job. If Job Buffering is set On, print jobs are buffered to the hard disk. If Job Buffering is set Off, the print jobs are not buffered. RS-232/RS-422 Changing the Job Buffering setting automatically resets the printer. RS-232* RS-422 RS-422 Polarity Choose the serial communication configuration for your printer. If RS-422 is selected, Serial Protocol is automatically set to XON/XOFF. Normal* Reverse If you select RS-422 for the serial communication configuration, you can then select Normal or Reverse polarity. * Factory Default 107 Using the Operator Panel and Menus