MIMAKI ENGINEERING CO., LTD. JV33 Precautions of replacing PCB D900674 Ver1.1 1. Overview This document describes to determine whether a problem is caused by a damage of the PCB ASSY related to a print head control. If the problem mentioned below occurred, it is necessary to check condition of the damage of each part (ASSY) since the PCB could have been broken: (1) All nozzles or nozzle line of each color would not fire.
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MIMAKI ENGINEERING CO., LTD. 3. Before work Be sure to follow the instructions below to confirm that there is no residual voltage in the CAUTION: circuit board every time turning OFF the power not to limit the extent of damage.
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MIMAKI ENGINEERING CO., LTD. 5. Checking damage of the print heads (1) Release the lock for HDC_FFC 130/160 ASSY connected to CN1-CN4 in the Main PCB ASSY. (2) Remove HDC_FFC 130/160 ASSY. (3) Measure resistant between the test pin TP6-13 and GND in the Ink slider PCB and judge whether...
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MIMAKI ENGINEERING CO., LTD. 6. Checking damage of the Main PCB ASSY (1) Release the lock located both sides of the connector for HDC_FFC 130/160 ASSY connected to CN1-CN4 in the Main PCB ASSY and then remove HDC_FFC 130/160 ASSY.
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MIMAKI ENGINEERING CO., LTD. 7. Checking damage of the Ink slider PCB (1) Remove 6 FFC at CN1-CN6 on the Ink slider PCB. (2) Measure resistance between 3.3V pattern and GND pattern in Ink slider PCB and judge whether it is good or not with List 4.
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MIMAKI ENGINEERING CO., LTD. 8. Determining to replace HDC FFC 130/160 ASSY (1) Check whether the reinforcing part (light blue) of HDC FFC 130/160 ASSY connected to the Ink slider PCB is folded or not. If they are folded, please replace them since the folded FFC may cause disconnection.
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MIMAKI ENGINEERING CO., LTD. Date Revision history 2008/6/18 Newly issue 2008/7/2 [1] Added “ERROR 07 HEAD 0” [3] Added photo Added a step to turn off the power [7] Corrected the List 4 [8] Added a caution to handle the contact part of FFC...
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