OKIDATA 421 MFG# 62418801 MTIPC » Products Page » Okidata » OKIDATA 421 MFG# 62418801 Price: $499.00 Refurbished- Okidata 421 9 Pin Dot Matrix Printer MFG# 6241880. Includes Refurbished Printer, And Six Month Warranty. Price: $0.00