Panasonic Panafax UF-766 - Manual (Page 23)

ABOUT YOUR FAX MACHINE
3 Fan the stack of paper and place it into the paper cassette.
4 Move the paper width guides so that the paper is squarely positioned in the paper cassette.
Paper Width Guide
5 Install the paper cassette cover.
6 Install the paper cassette into the machine.
0 Note:
1. The machine will operate normally with only one cassette installed.
2. If both cassettes are installed and adjusted for the same paper size, the machine uses recording paper from the upper cassette first
IMPORTANT
The paper size that you are using in both cassettes must be set in fax parameters 45 and 46 before you use your machine (see
page 21). Both are preset at the factory for A4-size paper.