Refurbished IBM 6400-004 Line Matrix Printer, 400 LPM, Twinax Attach, Quiet Cabinet. The IBM 6400 Model 004 represents the low end of the IBM 6400 series of mid-range, line matrix printers for the marketplace. It prints up to 475 lines per minute (LPM), and can be attached as an ASCII printer, or it can be twinaxially or coaxially-attached.
