(d)A bit and field described as ™Reserved are 0.
If this scanner receives a value other than 0, it returns error information as follows:
fStatus key: B©00001 (CHECK CONDITION)
fSense key: X©5 (ILLEGAL REQUEST)
The commands supported by this scanner are listed below.
|
| Table 4.6 Commands | |
|
|
|
|
Command | Operation |
| Description |
code (hex) |
| ||
|
|
| |
|
|
|
|
RESERVE UNIT | 16 |
| Declares the exclusive use of a logical unit |
|
|
|
|
RELEASE UNIT | 17 |
| Cancels the declaration of the execlusive use of a |
|
|
| logical unit |
|
|
|
|
INQUIRY | 12 |
| Examines the information regarding the target and |
|
|
| logical unit |
|
|
|
|
REQUEST SENSE | 03 |
| Requests a target for sense data |
|
|
|
|
SEND | 1D |
| Requests a target for self>check |
DIAGNOSTIC |
|
|
|
|
|
|
|
TEST UNIT | 00 |
| Checks whether or not a logical unit is ready |
READY |
|
|
|
|
|
|
|
SET WINDOW | 24 |
| Sets a window |
|
|
|
|
SET | C0 |
| Sets subwindows |
SUBWINDOW |
|
|
|
|
|
|
|
SEND | 2A |
| Sends Dither Matrix |
|
|
|
|
OBJECT | 31 |
| Controls the automatic document feeder |
POSITION |
|
|
|
|
|
|
|
READ | 28 |
| Requests transfer of image data |
|
|
|
|
MODE SELECT | 15 |
| Selects operating mode of the device. |
|
|
|
|
MODE SENSE | 1A |
| Requests operating mode of the device. |
|
|
|
|
4 $ 21