MIMAKI UJV55-320 CMYK Maintenance manual

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Inkjet printer UJV55-320
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)
• Washing liquid for maintenance (SPC-0568)
• Cotton swab
• Gloves
• Soft fabric
Make sure to wear the attached goggles and gloves.

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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.
3Clean the bottom surface of the UV lamp.
• If there is any ink stuck on the rear side of the
bottom surface of the UV lamp, apply the
cleaning solution for maintenance to a clean stick
and wipe the ink away.
Wipe off so that cleaning solution for
maintenance will not remain.
• 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.

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(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.
• Washing liquid for maintenance (SPC-0568)
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

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(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

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(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.
• For the cleaning of the media sensors, never use the solvent.
• When the sensor is heavily stained, wipe off with a cloth soaked in the waterdiluted neutral
detergent.
• When cleaning the media sensor at the bottom of the head, be cautious of the cutter blade near the
sensor to avoid injuries.
Media press
Media sensor Media width sensor
The backside of the machine The lower surface of the head

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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)
Platen is a place where dusts, paper powder, and ink
are liable to accumulate. It is therefore suggested to
clean it frequently. Wipe out the platen surface and the
platen cover with a soft blush or cloth. The grooves for
media holder and for cutting the paper (cutter line) are
the place where the dusts are especially liable to accu-
mulate. Clean them thoroughly.
(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.

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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

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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:
1Select a desired ink tank, and remove the ink
cover.
• Remove the screws (7 places) that is attached to the ink
tank cover, and remove the cover.
• Refer to the Chapter 4 “Relpace the ink tank and ink fillter”
of the user’s manual to perform the operationk.
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 and bottom 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) Press the protrusion on the lid of the ink tank
and replace a new ink tank.
(4) Set a new ink tank, and mount the ink filter.
• Tighten the joints on the top and bottom of the ink
filter.
Ink filter
Joint
Ink tank

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3Replace the white ink tank.
• Cover the surrounding area with waste cloth for protection
against dirt before changing the ink tank.
(1) Remove the motor’s connector.
(2) Remove the ink filter attached to the ink tank.
• Loosen the joints on the top and bottom of the ink
filter, and remove the filter.
(3) Remove the joint attached to the side of ink
fillter.
(4) Set a new ink tank, and mount the ink filter.
• Tighten the joints on the top and bottom of the ink
filter.
4Refer 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.
Connector
Motor
Ink filter
Joint
Joint

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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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9. Recovery method of defective nozzle discharge
When this printer has not been used for an extended period of time, or depending on the environmental tem-
perature, the discharge at the nozzles could become unstable. In such a case, the following methods may be
taken to recover the status of the nozzles.
For symptoms 1 to 4 in P.10 “The examples of defective printing”
For symptoms 5 in P.10 “The examples of defective printing”
1.Daily maintenance and care
Perform the cleaning of the parts described in this document.
2. Performing Head Cleaning (normal). Refer to Chapter 2 of
Operation Manual.
After having performed the care and maintenance stated in step 1, perform
the cleaning of the heads in accordance with the procedures stated in
Operation Manual.
Perform test printing and
check
(Chapter 2 of Operation Manual)
In the event nozzle missing etc. have not been improved
3. Performing Head Cleaning (hard). Refer to Chapter 2 of
Operation Manual.
If the nozzle missing does not disappear even after repeating the head
cleaning (normal) several times, reset the cleaning mode to "hard" and
perform the cleaning again.
Perform test printing and
check
(Chapter 2 of Operation Manual)
In the event nozzle missing etc. have not been improved
4. Set the nozzle recovery function. Refer to Chapter 4 of
Operation Manual.
Set the nozzle recovery function.
Perform test printing and
check
(Chapter 2 of Operation Manual)
1.Daily maintenance and care
Perform the cleaning of the parts described in this document.
2. If nozzle missing due to color mixture of ink or aeration
Refer to Chapter 5 of Operation Manual.
Perform air removal according to the procedure in the Operation Manual.
Perform test printing and
check
(Chapter 2 of Operation Manual)
• If the nozzle missing has not been improved even with the above operations, please call us
or your sales agent from whom you purchased this printer.

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10. Supplies
Name of part Part codes
UV ink LUS-120 Black ink (1liter) I-LUS12-K-BA
UV ink LUS-120 Cyan ink (1liter) I-LUS12-C-BA
UV ink LUS-120 Magenta ink (1liter) I-LUS12-M-BA
UV ink LUS-120 Yellow ink (1liter) I-LUS12-Y-BA
UV ink LUS-120 Light cyan ink (1liter) I-LUS12-LC-BA
UV ink LUS-120 Light magenta ink (1liter) I-LUS12-LM-BA
UV ink LUS-120 White ink (1liter) I-LUS12-W-BA
H fan filter SPC-0766
Clean stick for the surroundings of the head 50pcs SPC-0527
Maintenance washing liquid SPC-0568
Wiper kit SPA-0193
Cap ink absorber kit SPA-0263
3L ink bottle SPA-0266
3L W ink tank Assy SPA-0283
F-200/LF-200 CLEANING KIT SPC-0569
Replacement tube for Air Purge Jig SPC-0769

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11. Safety Precautions
]
12. Installation environment
• Use this printer as much as possible in a dust-free environment. Fans and air-blowers could cause the
dustspewing.
• The using environment of this printer is from 20 to 30°C (68°F to 86°F) in temperature and from 35 to 65 %
in relative humidity. Avoid the use of this printer at a temperature and humidity higher or lower than the
indicated ranges.
CAUTION
Make sure to wear the attached goggles and gloves.
The ink, if mixed with water or alcohol, generates condensed substances. Pay attention not to
deposit water or alcohol to the nozzle surface, surrounding area of the heads, caps and wipers.
To secure the stability of the ink discharge, when the printer is not used (output) for an extended
period of time, it could become necessary to discharge periodically a small amount of ink (flush-
ing), depending on the kinds of the ink.
When not using for an extended period of time, put off the power switch on the front, only.
Leave the main power switch at the side of the equipment on and keep the cable socket
inserted into the plug.
Make maintenance after the LED UV has been sufficiently cooled, or burn injury may occur.
Never disassemble this machine. It could cause electrical shock, fire and breakage.
Keep away the moisture from the inside of this machine. If the inside is moistened, it could
cause electrical shock, fire and breakage.
Perform the maintenance and care after switching off the power and taking off the power cable.
Otherwise, it could cause unexpected accidents.
Avoid using benzene, thinner, and chemicals containing abrasive compounds. The surface of
the cover could be degenerated or deformed.
Do not supply lubricant oil etc. to the inside this machine.
It could cause the breakdown of this machine.

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Memo

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Memo

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2016 MIMAKI ENGINEERING CO., LTD.
D202966-10-15022016 NH
FW :1.00