MIMAKI JV300-130 A, Maintenance Manual

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© 2014 MIMAKI ENGINEERING CO.,LTD. 5.2.2 P.1
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MAINTENANCE MANUAL > Test Items > Other Test > Checking Damage of the Print Heads
Model JV300-130/160 Issued 2014.05.30 Revised F/W ver 1.00 Remark
1.0
Rev.
5.2.2 Checking Damage of the Print Heads
 Outline
Check whether the COM line between the print head and the SL2H PCB has trouble or not.
 Procedure
1. Release the top and bottom lock of the connector under CN3,
CN4, CN5, CN6 and CN7 of the SL2H PCB, and disconnect the
FFC.
2. Measure a resistance between the test pin (TP) and GND on the
Slider 2H PCB ASSY to determine the COM circuit condition.
Connect the negative terminal of the tester to the GND test
pin and measure the resistance by getting the positive terminal
touch to TP with the following.
On the Slider 2H,
TP under CN3 (TP3, 4, 5, 6, 7, 8, 9, 10),
TP under CN4 (TP19, 20, 21, 22, 23, 24, 25, 26),
TP under CN6 (TP11, 12, 13, 14, 15, 16, 17, 18),
TP under CN7 (TP27, 28, 29, 30, 31, 32, 33, 34),
Measured value of each test pin should be more than 7K ohms.
If the results for the TP group besides CN3 or the TP group
besides CN4 are not good, there is a fault in head 1.
If the results for the TP group besides CN6 or the TP group
besides CN7 are not good, there is a fault in head 1.
After turning off the sub and main power switches in order, unplug the power code.
Check if no electric charge is remaining in the PCB.
It is very dangerous if sleep mode functions mistakenly during the operation.
Moreover, the PCB may be damaged in case electric charge still remains inside.
Also there is a possibility of electric shock because of high power voltage applied the high-pressure part
of PCB. Take care to avoid contact with it.
TP10
TP9
TP8
TP7
TP6
TP5
TP4
TP3
TP26
TP25
TP24
TP23
TP22
TP21
TP20
TP19
TP18
TP17
TP16
TP15
TP14
TP13
TP12
TP11
TP34
TP33
TP32
TP31
TP30
TP29
TP28
TP27
CN3 CN4
CN7 CN6