Checking Damage Of The Print Heads - MIMAKI JV300-130 Maintenance Manual

MAINTENANCE MANUAL > Test Items > Other Test > Checking Damage of the Print Heads
Model JV300-130/160 Issued 2014.05.30 Revised

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.
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.
 Procedure
TP10
TP9
TP8
TP7
TP6
TP5
TP4
TP3
© 2014 MIMAKI ENGINEERING CO.,LTD.
CN6
CN3 CN4
TP26
TP25
TP24
TP23
TP22
TP21
TP20
TP19
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.
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.
F/W ver 1.00 Remark
CN7
TP18 TP34
TP17 TP33
TP16 TP32
TP15 TP31
TP14 TP30
TP13 TP29
TP12 TP28
TP11 TP27
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),
Rev.
1.0
1
2
3
4
5
6
7
8
5.2.2 R.1.0 P.1