SC Pattern Error Name / Detection Criteria / Major Cause / Solution
20214 D
Failure to form negative pressure in the maintenance unit (air leak) (Tank 4
error)
Turn the main power switch off and then back on.
SC Pattern Error Name / Detection Criteria / Major Cause / Solution
20221 D
Failure to form negative pressure in the maintenance unit (nozzle/filter
clogging) (Tank 1 error)
Turn the main power switch off and then back on.
SC Pattern Error Name / Detection Criteria / Major Cause / Solution
20222 D
Failure to form negative pressure in the maintenance unit (nozzle/filter
clogging) (Tank 2 error)
Turn the main power switch off and then back on.
SC Pattern Error Name / Detection Criteria / Major Cause / Solution
20223 D
Failure to form negative pressure in the maintenance unit (nozzle/filter
clogging) (Tank 3 error)
Turn the main power switch off and then back on.
SC Pattern Error Name / Detection Criteria / Major Cause / Solution
20224 D
Failure to form negative pressure in the maintenance unit (nozzle/filter
clogging) (Tank 4 error)
Turn the main power switch off and then back on.
3. Appendix: Troubleshooting Guide
82
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