Engineer Training Inkjet Head Cleaning TJ8300 / TJ8500 Inkjet Head Cleaning.

Engineer Training

Inkjet Head Cleaning

TJ8300 / TJ8500


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Engineer Training


TJ8300 / TJ8500Cleaning Unit

When installing new/used inkjet heads on the machine or handling clogged heads, it is necessary to use the cleaning unit.

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Engineer Training


TJ8300 / TJ8500Cleaning Unit (Cont.)

Cleaning the inkjet heads is performed on an as-needed basis, or before inserting a new inkjet head into the system.

Inkjet heads are cleaned one at a time.

Before using the cleaning unit, make sure that:

Filter is clean.

Solvent is clean.

Container is full.

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Engineer Training


TJ8300 / TJ8500Washing Unit (Cont.)

Before performing the cleaning procedure, ensure that the following materials are prepared:

Cleaning unit

Four liters of ink solvent

Large plastic container

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Engineer Training


TJ8300 / TJ8500 Inkjet Head Preparations – Visual Check

Two 50-pin flat cablesMounting holes

Orifice plate

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Engineer Training


TJ8300 / TJ8500Preparation of the Cleaning Unit

1. Fill the large plastic container with ink solvent.

2. Place the plastic container in the back of the cleaning unit.

3. Insert the two tubes from the back of the bath into the plastic container.

Plastic container

Tubes

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Engineer Training


TJ8300 / TJ8500Preparation of the Cleaning Unit (Cont.)

TAB 4

TAB 3

TAB 2

TAB 1

Venting screw

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Engineer Training


TJ8300 / TJ8500Mechanical Stage

Tightenmounting screws

Inkjet headin the cleaningunit bracket

Ventingscrew

Let the washing unit work for 2-5 minutes with cover closed.

Tap 2

Tap 3Tap 4 Venting

Screw

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Engineer Training


TJ8300 / TJ8500Mechanical Stage (Cont.)

The mechanical stage flushes the inkjet head.

This step should be performed while the cleaning unit cover remains closed.

1. Place the inkjet head in the bracket on the cleaning unit, using the two mounting screws. Make sure there are two rubber seals on the bracket.

2. Open Taps #2 and #4.

3. Turn on the pump for 30 to 60 seconds and release air bubbles from the filter.

4. Open Tap #3.

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Engineer Training


TJ8300 / TJ8500Mechanical Stage (Cont.)

5. Turn on the pump.

6. Allow the cleaning unit to operate for 2 to 5 minutes.

7. If some nozzles are not spraying, rub your finger over the orifice plate using recommended gloves.

8. If there are still some spraying problems, change the flushing pressure.

9. If there are still nozzle problems, perform the ultrasonic bath procedure.

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Engineer Training


TJ8300 / TJ8500Electrical Stage

The electrical stage checks the electrical function of the nozzles in the inkjet head.

Tap 2

Tap 3Tap 4 Venting

Screw

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Engineer Training


TJ8300 / TJ8500Electrical Stage (Cont.)

The electrical stage checks the electrical function of the nozzles in the inkjet head.

1. Close tap #2.

2. Verify that the pump is off.

3. Close Tap #4 and open Tap #1.

4. Connect a flat cable to the cleaning unit and close the latches.

5. Allow the cleaning unit to operate for 2 to 5 minutes.

6. Turn on the pulse generator.

7. Tune the pulse generator to the highest frequency.

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Engineer Training


TJ8300 / TJ8500Electrical Stage (Cont.)

8. Allow the nozzles to spray for 15-30 seconds (check for missing nozzle spray).

9. Rotate the frequency selector three clicks to the right.

10.Slide a piece of paper in front of the inkjet head (check for missing nozzle spray ).

11.Turn on the pump for 5 seconds.

12.Turn on the pulse generator again.

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Engineer Training


TJ8300 / TJ8500Ultrasonic Bath

When encountering heavy clogged inkjet heads, it is recommended to use the Ultrasonic Bath.

Use only distilled water.

Pipette Inkjet head

Distilled water at room temperature

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Engineer Training


TJ8300 / TJ8500Static Washing Unit

Cover

M otor & F ilter

M ain Sw itch and DC Power Supply Connector

Drainage Tap

C over

F ill Solvent H ere

Engineer Training Inkjet Head Cleaning TJ8300 / TJ8500 Inkjet Head Cleaning.

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