Color Inkjet Printer JV33-130/160
4-14
3
COM noise when turn off the machine and trou-
ble of power sequence.
Note: Do not do the followings even if the applied firmware is installed.
COM noise can be made and it will cause damage. However, if it is necessary to do
the operation mentioned (b), please leave the machine 3 minutes or more before
turning on the power.
(a) Turning off the main power while "BOOT" is showing.
(b) Turning off the main power after "F-ROM" error occurred.
4
Static electricity attack Modified Head earth plate (M507834_02) to prevent head attack by static electric-
ity charged in media when media jam occurred.
However, static electricity may attacks to the slider when the operator touched the
slider part to remove the media.
Please advice to the customers that discharge by touching the metal part of the
machine other than slider before touching the slider or head, and remove the media
gently without making static electricity.
5
Replace head associated parts in the condition of
electric charge remains.
When replace the head and PCB with electric charge remains in 42V circuit, head
and PCB damage may increase.
Before replacement, make sure to check if electric charge is not remaining inside of
PCB when turning off the power each time.
For replacement procedure and precautions, please refer to the attached document
"Electric charge checking when replace the head and PCB."
Also to shorten the replacement time, resistance has been added to the Main PCB
and countermeasure of electric discharge also been added.
Cause of head/PCB damage Countermeasures
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