Maintenance Precaution - MIMAKI CJV150 Series Service Documents

Service Documents > Service Outline > Safety Precaution > Maintenance Precaution
Model CJV150/300 Issued 2014.09.15 Revised

2.1.2 Maintenance Precaution

 Before starting maintenance work, be sure to turn off the SUB power switch first and then MAIN
power switch, unplug the power cable from the power inlet on the machine, and wait for more than 15
minutes.
Without waiting for an adequate period of time, the electricity in the circuits on PCBs will not be
discharged completely. Under such conditions, components on PCBs may be damaged if any cable
inside the machine is unplugged or plugged in. Also you may get electric shock if you touch a bare
electrode.
 To protect your eyes and hands from ink, be sure to wear goggles and gloves when cleaning the print
head or replacing the pump assy or when there is a possibility that ink may scatter. Your hands can get
rough and dry if they are stained with the ink.
 A button type lithium battery is used for this board. Warn following 1)~4).
1), Danger of explosion if battery is incorrectly replaced.
2), Replace only with the same or equivalent type recommended by the manufacture.
Recommended type : [CR1220]
3), Dispose of used batteries according to the manufacturer
4),When the battery is replaced with a new one, pay attention to the polarity at replacing.
 When removing or installing dampers, take great care not to permit ink leakage and not to stain any
parts with ink. A drop of ink on FFCs or connectors may cause a short circuit or poor electrical
contact, thus resulting in faulty ink ejection or damage to the head or PCBs.
 Carefully connect the FFC cable between the main PCB and the SL2H PCB so that the connectors of
the same number meet each other. A wrong connection may cause a short circuit of the power supply
and thus damage the PCBs.
 Take great care not to confuse the two FFC cables between the SL2H PCB and the head; otherwise,
the power supply would be short-circuited.
 Do not turn off the power during firmware upgrading. Doing so may disable restarting.
2
SUB Power Switch*
 Preliminary Checks
Before starting work, make sure that the following conditions are all met:
1.  Understand thoroughly all the instructions given in "Warning for Use" in the Operation Manual before starting work.
2.  The following conditions for the power supply system are all met:
 The power supply voltage must be within the specification limits.
 The machine must be grounded properly.
 The power cable must be free from damage, broken wire, etc. Many cables must not be connected to one outlet.
 The location must be such that the cable can be easily unplugged from the wall outlet in case smoke or flame has
been risen from the electrical system.
3.  Some trouble may be due to misoperation. Judge whether or not the error display and the error condition signify
misoperation.
© 2014 MIMAKI ENGINEERING CO.,LTD.
1
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2
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1
MAIN Power Switch*
F/W ver Remark
s instructions.
'
The switch called the "MAIN Power Switch" in this document is
called the "Main Power Switch" in the " Operation Manual".
The switch called the "SUB Power Switch" in this document is
called the "Power Switch" in the "Operation Manual".
Rev.
1.0
1
2
3
4
2.1.2 R.1.0 P.1