Kyocera 6550ci Operation Manual page 86

Paper Size Guide (B)
4
With the bottom of the cassette pressed all the way
down, press the hook on the side of the Paper Size
Guide (B) to release it and pull out the Paper Size
Guide (B).
5
Adjust the Paper Size Guide (B) to the paper size.
A4
Insert the Paper Size Guide (B) into the slot marked
A4 (on the bottom of the cassette), and lock the
hook (it will make a "click" sound).
Gently try moving the Paper Size Guide (B) to
verify that it is fixed.
B5
Open the Paper Size Guide (B) as shown, insert
into the slot marked B5 (on the bottom of the
cassette), and lock the hook to the upper part (it will
make a "click" sound).
Gently try moving the Paper Size Guide (B) to
verify that it is fixed.
Letter
The Paper Size Guide (B) is not attached.
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Preparation before Use