Scanner Interface
Appendix A-46
A.4.5
SEND DIAGNOSTIC command
The following table shows the normal sequence of the SEND DIAGNOSTIC command when used
with this scanner.
Step
Bus phase
Initiator operation
←
→
Target operation
1
BUS FREE
Verifies bus free
2
ARBITRATION
Obtains bus-usage
right
3
SELECTION
Selects target
→
Drives BSY signal
4
MESSAGE OUT
Selects logical unit
→
5
COMMAND
Specifies SEND
DIAGNOSTIC
(CDB)
→
Performs self-test
6
STATUS
←
Reports GOOD status
7
MESSAGE IN
←
Reports message (Command
Complete)
Releases BSY signal
8
BUS FREE
(1)
SEND DIAGNOSTIC command: COMMAND phase (initiator
→
target)
The SEND DIAGNOSTIC command is used by an initiator to request a target or logical unit for
self-test. Two types of self-diagnostic are: (a) the self-test performed by the unit itself, and (b) the
test conducted according to the instruction data from the initiator.
This scanner supports the self-test only.
The results of self-test are reported using the status and sense data.
The CDB of this command is shown in the following illustration.
Summary of Contents for M3097DG
Page 1: ...C150 E103 01EN M3097DG Image Scanner OEM Manual ...
Page 2: ......
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Page 44: ...3 3 Optional image function 3 23 ...
Page 67: ...5 4 Consumable 5 13 Two rollers are included Figure 5 4 Pick roller ...
Page 70: ...6 3 Figure 6 1 Jam clearance ...