MIMAKI UJF-3042 - 2011 Mimaki Engineering Co.,Ltd

© 2011 MIMAKI ENGINEERING CO.,LTD. 3.1.1 R.2.0 P.1
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Maintenance Manual > Workflow > Ink Related Parts > Replacement of Head Unit
Model UJF-3042/FX Issued 2010.08.27 Revised 2011.09.30 F/W ver 1.80 / 1.00 Remark
2.0
Rev.
3.1.1 Replacement of Head Unit
 List of Replacement Procedures
 Never rotate the screws which are not instructed to do so in the following procedure.
Head adjustment is not required when the Head is disassembled or assembled at the user
side.Never rotate the hexagon socket head screws (cap screws) , which are used for adjustment or
attachment.
 Basically, items of the Check category in the following list only require a check of each condition, and
they do not require adjustment work. Only when adjustment is necessary, refer to the reference pages.
Item Work operation Description Ref.
Ink
1. 
Preparation of new Head, discharge
of ink and cleaning of Head
Discharge the ink and then clean the ink path and Head.
Perform the steps before the Protective solution
charge in [HEAD WASH] of [#ADJUST].
4.2.5
Power OFF
2. 
Main power OFF –
Covers
3.

Removal of the covers Remove the Front Cover, Upper Cover, Head Cover and Slider
PCB Cover.
6.1.1
Print Head Unit
4. 
Cleaning of the new Head Assy Clean the new Head by the cleanig liquid, befor leplacement of the
print head.
6.2.1
5.

Removal of the Head Remove the old Print Head..
6. 
Mounting of the Head Mount the cleaned new Head.
Covers
7.

Mounting of the covers Mount the covers which have been removed. 6.1.1
Power ON
8. 
Main power ON –
Ink
9.

Ink charging to Head Charge the ink and perform test printing.
Make sure that there is no Nozzle Out or Deflection.
–
Reset
10. 
Reset the Shot Count
Reset the Offset Voltage
Reset SHOT COUNTS and OFFSET VOLT of the relevant head
with “RESET SHOT CNTS” of “#ADJUST”.
4.2.18
Check
11.

Check of Head Slant Adjustment
(within #ADJUST)
Print a pattern of [#SLANT ADJUST] and check the Head Slant
Adjustment.
4.2.2
12. 
Check of Head Back/Forth Adjust-
ment
(within #ADJUST)
Print a pattern of [#POSITION ADJUST] and check the Back/
Forth Adjustment of the Head.
4.2.2
13.

Check of PRINT Adjustment
(within #ADJUST)
Print a pattern of [#PRINT ADJUST] and check the PRINT
Adjustment.
4.2.1
Be sure to wear Protective Glasses and Working Gloves during the work operation.
Ink may get in your eyes depending on the working condition, or hand skin may get rough if you touch
the ink.
Head