Lexmark MS310dn

2 Squeeze and then slide the width guide tab to the correct position for the size of the paper you are loading.
A6
A5
L
G
L
A
5
B
5
E
X
E
C
2
3 Squeeze and then slide the length guide tab to the correct position for the size of the paper you are loading.
A
6
A
5
LGL
A5
B5
EXEC
2
1
13