«Main Cause»
Motion of syringe plunger driving motor was faulty.
«Countermeasure»
The friction between the syringe tip and barrel may have excessively increased.
Remove the syringe and aspirate/discharge water or alcohol with the syringe repeatedly, allowing the syringe tip seal surface to become acclimated to the barrel.
If the error is not corrected after performing the action above, contact a
Shimadzu sales or service representative.