Fujitsu M3097G Oem Manual page 103

f Paper size: Byte 3
b7 B6 b5
Reserved
(*3)
Notes:
*1 This scanner cannot distinguish DL from A3, or LT from A4.
*2 When the paper is loaded into ADF by Object position (Load object), this
scanner detects paper size assuming the orientation is portrait.
After the paper is ejected from ADF by Object position (Unload object), this
scanner detects the orientation, and paper size.
*3 This bit (b6) only valid after Object position (Load/unload object) is
completed.
4 $ 78
b4 b3 b2 b1
0000: Undefined
0001: Undefined
0010: Undefined
0011: A3 or DL (*1)
0100: A4 or LT (*1)
0101: A5
0110: Undefined
0111: Undefined
0: Portrait 1: Landscape (*2)
0: Paper size detected, when the paper is fed from ADF.
1: Paper size not detected, when the paper is fed from
ADF.
0: The paper is loaded into ADF.
1: The paper is ejected from ADF.
b0
Following size detected (*2)
1000: Undefined
1001: Undefined
1010: Undefined
1011: Undefined
1100: B4
1101: B5
1110: Undefined
1111: Undefined