A.4 Commands

Byte 0 (MSB)

Number of X-direction pixels

3

 

(LSB)

 

 

 

 

 

 

4(MSB)

 

 

Number of Y-direction pixels

7

 

(LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

Detected Paper Width

 

 

 

(Reserved)

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

Detected Paper Length

 

 

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

∙Number of X-direction pixels: Byte 0 to 3

 

X Resolution x Width

Number of pixels =

 

1200

 

∙Number of Y-direction pixels: Byte 4 to 7

Y Resolution x Length

Number of pixels =

1200

This scanner calculates the numbers of X-direction pixels and Y-direction pixels of the image data to be transferred to the initiator. The scanner performs this calculation by referencing the resolution and area set up with the SET WINDOW command. This data need not be issued if the numbers of pixels are known by the initiator.

∙Detected Paper Length: Byte C to F

Detected Paper Length field returns detected line number (transferred line number), when ALD bit in Auto Size Detect page is set to 1 by MODE SELECT command. When ALD bit in Auto Size Detect page is set to 0, this field is reserved. Detected Paper Length field is valid from the completion of scanning to the next SET WINDOW/READ (image data) command.

Appendix A-91