MIMAKI SWJ-320EA Maintenance manual

Color Inkjet Printer SWJ-320EA

Requests for Care and Maintenance

This machine is a precision machine equipped with extremely fine mechanisms. Especially, the nozzle sur-

face of the heads from which the ink is discharged is affected even by a slightest attachment of dust or paper

powder and the proper printing results could not be obtained. With a view to using this machine in a better

condition, we would like to recommend performing the following care and maintenance on daily basis.

1. When to care

When to care What to care Reference Page

Once a day

(at the end of the daily work)

Surroundings of the heads P.2

Capping station P.3

Wiper P.4

Wiper cleaner P.4

Media press P.5

Media sensor P.5

Waste ink tank P.5

Once a week

(at the end of the work on

weekend)

Cleaning the Platen P.6

Exterior P.6

Once in a month Replacing the H fan filter P.7

When replace the ink tank Replacing the ink tank and ink filter P.8

Tools required for maintenance

• Cleaning stick (SPC-0527)

• Cleaning solution kit200 (SPC-0369)

• Cotton swab

• Safety glasses

• Gloves

• Soft fabric

Make sure to wear the included safety glasses and gloves.

2. Daily care

(1) Surroundings of the heads ("Cleaning the Head and the Area around It" Chapter 4 of

the Operation Manual)

1Move the carriage to the left and open the left

maintenance cover.

• Refer to the Step 1 to 5 of Chapter 4 “Cleaning the Head

and the Area around It” of the user’s manual to perform

the operation.

2Clean the head and the surrounding

area.

• Gelled ink and dust could stick under the slider

and the surroundings of the head.

• Scrape them off with clean stick etc. In this case,

never rub the nozzle portion of the head.

• When possible, use the cleaning stick (SPC-0527) for cleaning around the head/ capping station/ wiper.

Using the other cotton bud may attach lint, then it may damage the machine.

• Be sure to perform maintenance for the ink cap and the wiper of capping station every day. If you leave it

dirty, dirt may adhere to the nozzle surface, or, dust and dry ink may be rubbed against the nozzle. It may

cause discharge defect.

• Clean the bottom of carriage every day so that it will not get dirt from inks or dusts. If you leave it dirty, dust

and dry ink may be rubbed against the nozzle at wiping operation when performing head cleaning.

• When you clean the carriage bottom surface, fully be careful not to rub the nozzle surface.

• The heads and their surroundings are the parts most liable to be tainted in this machine and if

tainted, it could cause adverse effects to the functions of the machine and the results of the

printings. Moreover, as the head itself uses very fine mechanisms, sufficient precautions are

required for the care and maintenances.

Screw

Left side

maintenance cover

Rotate it left.

The nozzle part (Never touch it.)

Clean the side surface of the head

(shown in deep gray) with a clean stick.

Clean with a clean stick

or a waste cloth.

(2) Capping Station ("Cleaning the Wiper and Cap" Chapter 4 of the Operation Manual)

The surrounding area of the cap is also liable to be stained by the dust and ink. It is recommended to clean

the head frequently using the cleaning liquid for maintenance suitable for the ink used to avoid the stains on

the head.

• Cleaning solution kit200 (SPC-0369)

1Move the carriage and open the right side

maintenance cover.

• Refer to the Step 1 to 4 of Chapter 4 “Cleaning the Wiper

and Cap” of the user’s manual to perform the operation.

2Clean the cap rubber and cap rubber cover.

• Wipe off the ink sticking to the cap rubber and cap rubber

cover with a clean stick dipped in cleaning solution for

maintenance.

Wipe off so that cleaning solution for maintenance will not

remain.

Right side

maintenance cover

Screw

Cap rubber Cap rubber cover

(3) Wiper ("Cleaning the Wiper and Cap” Chapter 4 of the Operation Manual)

On the wiper, the ink, dust and paper powder are liable to accumulate. Check the state of the wiper and if it is

stained, clean it.

1Move the carriage and open the lower right

maintenance cover.

• Refer to the Step 1 to 4 of Chapter 4 “Cleaning the Wiper

and Cap” of the user’s manual to perform the operation.

2Clean the wiper.

• Remove the wiper by holding the protrusions at its both

ends.

• Wipe off the ink sticking to the wiper and bracket with a

clean stick dipped in cleaning solution for maintenance.

Wipe off so that cleaning solution for maintenance will not

remain.

Further, in the cases as explained below, replace the wiper with the new one (SPA-0193) in accordance with

"Replacing the wiper" on Chapter 4 of the Operation Manual.

• When the wiper is deformed

• When the stuck ink can not be wiped off

• When the warning for wiper replacement is indicated

(4) Clean the wiper cleaner

Wipe off the ink of the wiper cleaner with clean stick or waste

cloth dipped in cleaning solution for maintenance.

Right side

maintenance cover

Screw

Wiper

Projection

Bracket

wiper cleaner

(5) Media press (“Cleaning the Media Press” Chapter

4 of the Operation Manual)

When the cut dust of the media and other dusts accumulate

between the media holder and the platen, it could cause the

risks that the transfer of the media could not be performed prop-

erly or such dusts stick to the nozzles and this could interfere the

proper printings. You are recommended to clean it frequently.

(6) Media sensor ("Cleaning the Media Sensor" Chapter 4 of the Operation Manual)

The media sensors are located on the platen (for two positions) in the backside and the bottom surface of the

head.

If the dusts and ink accumulate on the sensor, it could cause false detection of the media or the register mark.

Wipe off the sensors with soft cloth or clean sticks.

(7) Waste ink tank ("Discarding waste ink" Chapter 4 of the Operation Manual)

Refer to the Chapter 4 “Discarding waste ink” of the user’s manual to perform the operation.

• Turn off the main power and unplug the power cable

before maintenance.

• Do not allow liquids to get inside the product.Ingress

of liquids into the product may lead to failure, electric

shock, or fire.

• When using washing liquid for maintenance, be sure

to wipe it away completely so that none remains on

the media press.

• Do not press against the sensor with the cotton swab. Doing so could damage the sensor.

Media press

Media sensor Media width sensor

The backside of the machine The lower surface of the head

3. Periodically care (Once a week)

Users are advised to perform the maintenance works described below once a week so that the printer will

keep its high performance and accuracy over an extended period of its life.

(1) Platen (“Cleaning the Platen” Chapter 4 of the Operation Manual)

Continuing to use the media while it is dirty may cause

media to be fed incorrectly, or rubbing dirt or solid ink

onto the head nozzle surface, resulting in discharge fail-

ure (nozzle clogging, deflection, etc.).

(2) Exterior (“Cleaning the Exterior Surfaces” Chapter 4, Operation Manual)

Depending on the using environment, the dusts or sand

powder could stick to the exterior of the main unit. To

avoid the entry of the dusts into the moving part of the

head, wipe them off with soft cloth dipped into water and

squeezed tightly.

• Turn off the main power and unplug the power cable before maintenance.

• Do not allow liquids to get inside the product.Ingress of liquids into the product may lead to failure,

electric shock, or fire.

• When the platen is stained with ink, wipe it off with a paper towel containing a small amount of

cleaning solution for maintenance.

• Before cleaning the platen, make sure that the platen heater has cooled adequately.

• When cleaning the platen, do not apply strong force to the platen or wipe it with a hard cloth.

Doing so may damage or deform the platen, causing poor printed image. If the deformed platen is

used, the media may meander and the print head may be damaged.

• Do not allow liquids to get inside the product.Ingress of liquids into the product may lead to failure,

electric shock, or fire.

4. Periodically care (once in a month)

(1) Replacing the H fan filter

Replace it once in a week or two weeks.

1Move the carriage and open the rightside

maintenance cover.

• Refer to the Step 1 to 4 of Chapter 4 “replace the H fan

filter” of the user’s manual to perform the operation.

2Remove the H fan filter cover at the right side of

the carriage.

• Remove the screw on the H fan filter cover before

removing the cover.

3Remove the used H fan filter cover.

4Mount a new H fan filter (SPC-0766).

• Align the hole in the H fan filter with the screw hole.

5Return the H fan filter cover to the original

status.

6Close the right side maintenance cover, and

press the key.

• Ink at printing adheres to the H fan filter ASSY. When replacing the filter, it is recommended to

perform the work with a sheet of paper placed.

Right side

maintenance cover

Screw

H fan filter

cover

Claw

H fan filter

cover

new H fan

filter

5. Replacing the ink filter (When replace the ink tank)

To keep the ink in good quality in the ink tank, you need to replace the ink tank annually. When an appropriate

warning message appears, be sure to replace tank in the following procedure:

1Remove the ink maintenance cover for the ink

tank to replace.

• Refer to the Step 1 to 6 of Chapter 4 “Replace the ink

tank” of the user’s manual to perform the operation.

2Replace the ink tank.

• Cover the surrounding area with waste cloth for protection

against dirt before changing the ink tank.

(1) Remove the ink filter attached to the ink tank.

• Loosen the joints on the top of the ink filter, and

remove the filter.

(2) Remove the ink tank.

• Take care not to tilt the ink tank greatly when

removing the tank. It may cause ink leakage from the

cap.

(3) Set a new ink tank, and mount the ink filter.

• Tighten the joints on the bottom of the ink filter.

• When this function is executed, the remaining charge of the selected ink becomes 0, and unused ink to be

charged cannot be used. Be sure to use up the ink to be charged before executing the instinct function.

• Be sure to wear the accompanying gloves and safety glasses before working. The ink may get inyour eyes.

Screw

Inkmaintenance

cover

Ink filter

Joint

Ink tank

3Refer to the Chapter 1 “Fill ink in the ink tank and charging” of the user’s manual to

perform the operation., and refill with new ink.

• Do not tighten the joint too much. Otherwise, the filter might

be damaged. Be careful.

• Do not pour the ink remaining in the removed ink tank into

the new tank.

• Request that an industrial waste disposal company process

the disposal ink.

• When the tube and cover are in contact, there are times

when the amount of ink can not be accurately detected. So

as not to contact to the utmost as shown in the figure

below, please be careful for the direction of the joint.

6. Storage of media

Media should be stored in the little dust area, and not in direct sunlight. Avoid storing the media in the area

with high temperature and high humidity.

7. Storage of ink bottle

Be careful of the followings to store.

• Store the ink bottle in no direct sunlight, and no high humidity.

• As it's a delicate product, do not drop it.

• Ink IC should not be contaminated and discharged static electricity.

• Be sure to store the ink bottle and the ink IC together.

8. The examples of defective printing

These following examples indicate improper head (nozzle) firing by dust, which effect printing.

Confirm the nozzle condition periodically before or during outputting not to use in such as this condition.

The nozzle condition can be confirmed with [test printing] in this plotter. (Operation manual Chapter 2 “Test

Printing”)

Ink bottle and Ink IC

101

110

121

130

141

150

161

170

181

190

201

210

221

230

101

110

121

130

141

150

161

170

181

190

201

210

221

230

1.Deflection 2.Nozzle out 3.Ink dropping

4.Satellite 5.Mixing in air

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