OKI 420dn Manual De Usuario

Installing options > 78

The following options are available to extend the performance of your printer:

128 and 256MB RAM DIMM: to extend the main memory of your printer and speed 

up the processing of large files

Second paper tray: to increase your printer’s paper handling capacity by 530 sheets 

(75g/m²)

To install any of the above options, follow the detailed installation sheet that accompanies 

the option.

128MB RAM DIMM

44029501

256MB RAM DIMM

44029508

Second Paper Tray (Tan)

43990701

Second Paper Tray (Black)

43990704