Oki C610 - Manual (Page 67)

67 – C610/C711 User’s Guide
Available Options
See the instructions supplied with the options.
Duplex (two-sided printing) Unit ___
Oki P/N 70061601
The duplex unit adds the function of two-sided printing, using less
paper and making large documents easier to handle. It also
enables booklet printing, which uses even less paper and makes
large documents even easier to handle.
The duplex unit slides straight into the rear of the printer and
requires no tools to install.
Additional RAM Memory __________
Oki P/N 70061801 (256 MB), 70061901 (512 MB)
The basic printer model comes equipped with 256 MB of main
memory. This can be upgraded with an additional memory board
of 256 MB or 512 MB, giving a maximum total memory capacity of
768 MB.
Installation takes a few minutes, and requires a medium size
cross-head (phillips-type) screwdriver.