Replacement Of The Main Pcb Assy - MIMAKI SWJ-320 S2 Maintenance Manual

MAINTENANCE MANUAL > Workflow > Electrical Parts > Replacement of the Main PCB assy.
Model SWJ-320S Issued 2012.07.19 Revised 2013.08.28 F/W ver

3.3.1 Replacement of the Main PCB assy.

After turning off the sub and main power switches, unplug the power cord. Make sure to take 15
minutes before restarting the operation. 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 to the high-pres-
sure part of the DC power supply unit. Take care to avoid contact with it.
 Outline
If Main PCB assy. has replaced, various parameters must be registered to Main PCB ROM after the replacement.
Considerable time is required to readjust and reconfigure these settings. Therefore, for ease of use and better printing
quality, copy (upload) the setting value to a PC before replacement, and write (download) the copied settings onto the
Main PCB from the PC after replacement.
If it is impossible to upload the parameters, conduct Parameter Draw to note the setting values.
Then manually register the values after replacing the PCB.
 List of replacement procedures
Item
Advance  Parameter upload
1.
preparation
Main PCB  Power OFF
2.
assy. Power cable removing from main
body
 Main PCB assy. replacement
3.
Check/  Power ON
4.
Adjustment

Power voltage adjustment
5.

Parameter download
6.
© 2013 MIMAKI ENGINEERING CO.,LTD.
Main PCB assy.
Work operation
Before the printed-circuit board is replaced, upload its
parameter to the PC.
Turing the main power OFF, and then removing the power
cable from the main body.
Connecting the power cable to the main body, and starting
the machine.
Monitoring the power with a tester and adjusting the volume
of DC power supply(DC37V).
Download the parameters which were uploaded in operation
"1".
Remark
Description
3.3.1
Rev.
1.1
1
2
3
4
5
Ref.
6
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7
6.4.1
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4.2.23
8
R.1.1 P.1