Ricoh A172 Service Manual page 116

3. Enter SP Mode as follows:
1) Press the clear modes key.
2) Wait for 2 or 3 seconds while the display returns to the initial screen.
3) Enter "107".
4) Hold down the clear/stop key for more than 3 seconds.
4. Touch the SP special feature key [A].
[A]
5. Touch the Previous key [B] to select the paper tray size setting mode
(page 12).
6. Touch the appropriate paper size key and direction key for the 3rd feed
station. Then touch the Index key [C].
SM
[B]
3-27
[C]
A172/A199