Table of Contents

Replacing the Syringe (When using the black plunger holder 2)

Plunger holder 2 (black) is an improved part that makes it easier to replace the syringe.
Please use it according to the following procedure.

Video (Removal of AOC Syringe)¶

Video (Installation of the AOC Syringe)¶

Required devices¶

Procedures¶

Step 1¶

Open the front door.

Step 2¶

For AOC-20i, press the [STOP] key.

The hold of the plunger motor of the AOC-20i will be released.
For AOC-30i, the hold of plunger motor is automatically released when the door is opened.

Step 3¶

Unlock the syringe lock, and while holding the knob, remove the syringe.

Step 4¶

Check for clogging of the syringe and freedom of movement of the plunger.

Clean or replace it as needed.
See Maintenance of Syringe .

Step 5¶

Attach the barrel holder to the new syringe.

Step 6¶

The syringe is set in the syringe drive unit by fitting the syringe plunger into the plunger holder.

Step 7¶

Fix the syringe with the syringe lock.

Step 8¶

Make sure the plunger tip is at the bottom. If there is some distance between the syringe plunger and the bottom of the syringe barrel, adjust the zero point using the following procedure.

Step 9¶

Loosen the knurled screw (★1) that fixes the syringe plunger in place.

Step 10¶

Press the [Reset] key.

Move the plunger driving unit to the home position.

Step 11¶

Press down on the plunger holder lightly, ensure that the end of the plunger is located at Zero point, and tighten plunger fixing knurled screws to fix it in place.

Step 12¶

Make sure the plunger tip is at the bottom.

Step 13¶

Close the front door of the AOC.

Step 14¶

Reset the consumable usage counter.