MIMAKI SWJ-320EA Maintenance manual
1
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
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.
3
(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
4
(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
(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
6
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.
7
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
H fan filter
cover
new H fan
filter
8
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
Screw
Inkmaintenance
cover
Ink filter
Joint
Ink tank
9
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.
10
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
1
10
21
30
41
50
61
70
81
90
101
110
121
130
141
150
161
170
181
190
201
210
221
230
1
10
21
30
41
50
61
70
81
90
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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