Command Sequence; Initial Sequence - Fujitsu Scan Partner 300C Instruction Manual

4.7 Command Sequence

This section describes the initial sequence and read sequence.

4.7.1 Initial sequence

Host side
Verify the logical unit
..........................................................................................................................................................................
Verify scanner READY
Check status byte
Receive GOOD status
Receive CHECK CONDITION
status
Request sense data
Receive UNIT ATTENTION
sense data
....................................................................................................................................................................................
Verify scanner READY
Check status byte
Receive GOOD status
Receive CHECK CONDITION
status
Request sense data
Receive sense data
NOT READY
HARDWARE ERROR
........................................................................................................................................................................
End (Ready to read)
........................................................................................................................................................................
Abnormal termination
INQUIRY
INQUIRY data
TEST UNIT READY
Status byte
REQUEST SENSE
Sense data
TEST UNIT READY
Status byte
REQUEST SENSE
Sense data
4-56
Scanner side
Power ON/reset/initialize
Scanner does not respond for 3 sec
Prepare INQUIRY data
Respond with INQUIRY data
Respond with GOOD status
if READY
Respond with CHECK
CONDITION status if
UNIT ATTENTION
Prepare sense data
Respond with sense data
Clear sense data (Release
UNIT ATTENTION)
Respond with GOOD status
if READY
Respond with CHECK
CONDITION status if
NOT READY
Prepare sense data
Respond with sense data
End (Ready to read)