User Manual (ENGLISH)
Page 55
... (Normal). Use only paper that the paper size guides are correct. Install the toner cartridge. The connection cable between the computer and the printer is extremely slow. See page 9.1. tray. If you use the ML-4551ND and install an option duplex unit in the ML4550 or ML-4551N, your default printer. Check that meets printer specifications. Solving general printing...
... (Normal). Use only paper that the paper size guides are correct. Install the toner cartridge. The connection cable between the computer and the printer is extremely slow. See page 9.1. tray. If you use the ML-4551ND and install an option duplex unit in the ML4550 or ML-4551N, your default printer. Check that meets printer specifications. Solving general printing...