A.4 Commands

(2)SEND data (dither pattern): DATA OUT phase (initiator → target)

7

6

5

4

3

2

1

0

Byte 0

1

2

3

(Reserved)

4(MSB)

5

 

X-direction dither matrix size

 

 

 

 

(LSB)

6(MSB)

7

Y-direction dither matrix size

(LSB)

8

9

A

(Reserved)

B

Dither matrix data

a.Dither matrix size

Specifies the size of dither matrix to be downloaded. This scanner supports 8 x 8. If any other value is specified, this scanner returns the following error information:

∙ Status:

B’00001’ (CHECK CONDITION)

∙ Sense key: X’5’ (ILLEGAL REQUEST)

b.Dither matrix data

Specifies the values of dither matrix in the range of 0 to 255, starting from the upper- left corner. (Value 0 represents the darkest, with 255 the brightest.)

The number of data vlaues is the sum of the X- and Y-direction elements as specified in the matrix size fields. If the number of data values differs from that sum, this scanner returns the following error information:

∙

Status:

B’00001’ (CHECK CONDITION)

∙

Sense key:

X’5’ (ILLEGAL REQUEST)

Appendix A-83