Canon GP160DF Service Manual page 534

CHAPTER 4 SERVICE MODE
#1 SSSW-SW06: Reading condition settings
SW Bit
No. No.
0 Reserved
1 Reserved
2 Document length restriction
3 Reserved
06
4 Document scanning width
5 Reserved
6 Reserved
7 Halftone and superfine
[Bit 2]
Selects the document length limit.
[Bit 4]
Selects the document scanning width. When "letter" is selected, letter size documents
are read at letter width (214 mm).
[Bit 7]
Selects whether or not superfine mode can be set when an image quality mode other
than TEXT mode is selected.
4-32
Function
Table 4-8
Bit setting
1
Do not restriction 1 meter or less
Letter A4 Prohibit
Allow Prohibit
0