What daily maintenance is required?

  1. Before Print
    Shake the white ink cartridge up and down gently if machine has white ink. Be sure ink does not come out from its spout during shake the cartridge.
    How to shake Ink cartridge
    Wear gloves and put a cloth on its spout part like as shown in below pictures to prevent from ink spilling out from the spout part. Shake it gently (tilt it like as below pictures) more than 20times, then ink will be mixed. If you shake it roughly, the ink pack inside cartridge may get damaged then ink may leak out. Please shake a cartridge slowly if the ink pack remains small amount of ink inside, otherwise the ink can not be mixed well.
  2. End of the day
    -Perform [CLEANING] and [NOZZLE WASH] functions.
    Reference: [Operation manual] -> [CHAPTER 2 Basic Operations] -> [Execution of head cleaning]
          [Operation manual] -> [CHAPTER 4 Maintenance] -> [Washing the Nozzle]
    -Perform [WIPER CLEANING] and [CARRIAGE OUT] to clean the Cap.
    Reference: [Operation manual] -> [CHAPTER 4 Maintenance] -> [Cleaning of wiper]
  3. Maintenance for white ink (White maintenance)
    This machine has white ink circulation system which prevents from ink precipitation inside the white ink line. If you use white ink 2cc or more* every day, you do not have to perform the White maintenance function. However, if you do not use the machine every day, the White maintenance function has to be operated once every two weeks.
    Reference:[Operation manual] -> [Chapter 4 Maintenance] -> [Maintenance for white ink]
    *2cc is equivalent to four times of normal cleaning or fifteen times of 10cm x 10cm solid printing.

  4. When waste ink is full
    Please be sure to dispose the waste ink from the Waste ink tank and the Wiper bottle pursuant to the regulations of your district.
    Reference:[Operation manual] -> [CHAPTER 4 Maintenance] -> -[When the waste ink is full]
  5. To avoid ink dripping during a print function
    Ink droplets may occur on a bottom of the carriage due to ink mist at the time of printing. If the ink droplets are dropped on material, it stains on print material surface, making nozzles out or blurred print result. Please clean the bottom of the carriage with preferred Washing liquid and Clean stick.
    Reference: [Operation manual] -> [CHAPTER 4 Maintenance] -> [Avoiding dripping of ink droplet at printing]
  6. Other
    – Refill Antifreeze mixed water if the machine is shown “WATER LACK” warming message.
    Reference: [Operation manual] -> [CHAPTER 4 Maintenance] -> [Refilling antifreeze mixed water]
    -Cleaning glass of LED UV unit.
    Reference:[Operation manual] -> [CHAPTER 4 Maintenance] -> [Avoiding dripping of ink droplet at printing]

Is there any caution to print on 3D-media?

In case of printing on 3D-media, please prepare and set a particular jig which has the same height as the media to reduce ink mist.

Precaution when print on colored or colorless transparent media

When you print on transparent media especially it is colored with red, orange,or colorless transparent media, the sensor light from the obstruction sensor (invisible light beams) may get through the media, and it may sense the media height wrongly then a carriage may crash against the media.


As a caution to avoid the head crash, firstly set each media on a jig flatly. Refer to the following ideas as good example to have correct height detection by the obstruction sensor. Before start printing, make sure the obstruction sensor can detect your print media height correctly or not with these ideas.

  1. Put a masking tape from inside of the media to make the obstruction sensor can read it.
    masking tape ujf6042
  2. Make another jig for each media to make obstruction sensor reads it.
  3. If the media has convexes (such as below fig 1), put a masking tape on the convex surface and set the media in the direction which the taped convex surface can be catched the sensor light (such as below fig 2).


How can the head gap be adjusted?

Input the value directly. Recommended gap is 1.5mm (.015 inch)

If the head gap has been changed, the table height will be changed accordingly.

UJF-6042 has a function [GAP CHECK].
When [ON] is selected: If an obstacle is detected before or during printing, the table automatically moves down away from the obstacle.

  • Due to the table height continues to move down until the obstruction sensor does not react it, although the [HEAD GAP] has been set to 1.5mm,the actual head gap may become more than 1.5mm. Note that larger head gap more than 1.5mm may create ink mist issue or low quality print result, and it can be happened if sensor detect obstacle.
  • Obstruction sensor may not detect on colored or colorless transparent media. Please see [Q: Is there any caution to print on 3D-media?].

When [OFF] is selected: If an obstacle is detected before printing, the message “ERROR505 !WORK High” will be displayed and the operation has stopped.

UJF-6042 has a function [WORK SET].
If the thickness of the media is 100mm or less, you need to have an additional Table spacer and Vacuum table to make 1.5mm recommended head gap. Which spacer you need to use is depends on the media thickness.
ujf-6042 workset

When you change or remove Table spacer, height of the Vacuum table will be changed as below. Procedure to change height of the Vacuum table differs according to serial number
of the machine.

Serial number “O134B260” or before

table-spacer ujf-6042

Please refer to below table to choose required tools for each media thickness.

Thickness of the media Required tools
50mm~100mm Vacuum table + Table spacer 50
50mm or less Vacuum table + Table spacer 100

* When both a Vacuum table and a Table spacer are used, the allowed media weight to set on the table will be 4kg or less (including jig).

Serial number “O134B261” or later



Please refer to below table to choose required tools for each media thickness.

Thickness of the media Required tools
50mm~100mm Vacuum table
50mm or less Vacuum table + Table spacer 100

Method of Serial number confirmation


  • Serial number of the machine is labeled on rear of the machine as below figure:
  • serial-number-confirm

Another method

  • It is possible to check Serial number of the machine with following procedure:



Which ink can be used?

The following ink and ink sets are available. 220ml ink cartridges or 600ml eco-cartridges are available.
Ink colors are indicated as shown below.

ink colors ujf-6042

For UJF-6042, the LH-100 ink, LF-200 ink, LF-140 ink, and IJ primer [PR-100] are available.

Expiration date of ink

The expiration date of ink is described on each ink pack or cartridge. If an ink cartridge has passed its expiration date, do not use it.

ink-expiration-ujf-6042 expiration-date-ink-ujf-6042

Use up an ink cartridge within 6 months since you open it.
Drawing quality is degraded if a long time has passed after opening.

Which media size and weight can be used?

Use media that matches to the following specifications.

Maximum width Maximum length Maximum printing length Thickness Weight
610mm 420mm 610mm 420mm 1500mm or less 7kg or less (inlcuding jig)

* When you use the accompanying Vacuum table, the weight is 4kg or less (including jig).

[About positions of the screw holes]

Positions of the screw holes for holding jigs are as below.
Size of the screw holes are M4 (ISO screw thread) with through hole.
table ujf-6042
* Screw holes that indicate with red circle are usable.

Vacuum table ujf-6042
* Screw holes that indicate with red circle are usable.

What system configuration do I need?

ujf-6042-faq-system-configRIP software “RasterLink 6” is attached to the main unit.
In addition to JV400 main unit, RIP PC and USB 2.0 cable are required.
(USB 2.0 cable can be purchased optionally)

Using the RIP PC as a server machine, data is sent from your client PC that is running a DTP application to the RIP software “RasterLink 6” through the LAN cable.

What is the required installation space of the UJF-6042?

Please secure an installation space that it meets the following conditions.

  1. A place avoiding direct sunlight.
  2. A place that the temperature and humidity are within specifications. 20-35 deg C (68 to 05 deg F), 35-65%(Rh)
  3. A place not exposed to direct air blow from air conditioner, etc.
  4. A place that is horizontal. (If the machine is not placed horizontally, printing quality may be degraded)
  5. Vibration–free place
  6. A place where fire is not used
  7. A clean place equivalent to normal office level. (0.15mg per cubic meter or less)