(デシジョンテーブルより)
The four quadrants
Conditions
Condition alternatives
Actions
Action entries
Printer troubleshooter
Rules
Conditions
Printer does not print
Y
Y
Y
Y
N
N
N
N
A red light is flashing
Y
Y
N
N
Y
Y
N
N
Printer is unrecognized
Y
N
Y
N
Y
N
Y
N
Actions
Check the power cable
 
 
X
 
 
 
 
 
Check the printer-computer cable
X
 
X
 
 
 
 
 
Ensure printer software is installed
X
 
X
 
X
 
X
 
Check/replace ink
X
X
 
 
X
X
 
 
Check for paper jam
 
X
 
X