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

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
3.1.1 Replacement of Head Unit
 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.
 List of Replacement Procedures
Item
Ink  Preparation of new Head, discharge
1.
of ink and cleaning of Head

Power OFF Main power OFF
2.

Covers Removal of the covers
3.
Print Head Unit 4.  Cleaning of the new Head Assy
 Removal of the Head
5.

Mounting of the Head
6.

Covers Mounting of the covers
7.
Power ON  Main power ON
8.
Ink  Ink charging to Head
9.

Reset Reset the Shot Count
10.
Reset the Offset Voltage
Check  Check of Head Slant Adjustment
11.
(within #ADJUST)
 Check of Head Back/Forth Adjust-
12.
ment
(within #ADJUST)
 Check of PRINT Adjustment
13.
(within #ADJUST)
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.
© 2011 MIMAKI ENGINEERING CO.,LTD.
Work operation
Discharge the ink and then clean the ink path and Head.
Remove the Front Cover, Upper Cover, Head Cover and Slider
PCB Cover.
Clean the new Head by the cleanig liquid, befor leplacement of the
print head.
Remove the old Print Head..
Mount the cleaned new Head.
Mount the covers which have been removed.
Charge the ink and perform test printing.
Make sure that there is no Nozzle Out or Deflection.
Reset SHOT COUNTS and OFFSET VOLT of the relevant head
with "RESET SHOT CNTS" of "#ADJUST".
Print a pattern of [#SLANT ADJUST] and check the Head Slant
Adjustment.
Print a pattern of [#POSITION ADJUST] and check the Back/
Forth Adjustment of the Head.
Print a pattern of [#PRINT ADJUST] and check the PRINT
Adjustment.
1.80 / 1.00 Remark
Description
Perform the steps before the Protective solution
charge in [HEAD WASH] of [#ADJUST].
Rev.
2.0
1
2
Head
3
4
Ref.
4.2.5
–
5
6.1.1
6.2.1
6
6.1.1
–
7
–
4.2.18
4.2.2
8
4.2.2
4.2.1
3.1.1 R.2.0 P.1