"New OEM OKI Guide Sheet Assembly Cover - Part No. 51009510, PA4094-7308G011 for ML321T, ML421, ML491 Dot Matrix Printers". 📦Part Numbers: 51009510, PA4094-7308G011. This part is specifically designed to fit several OKI dot matrix printers, including models like theML321Turbo ,ML421, andML491 series, as well as other compatible models listed above.
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