CJV30 grilled capacitor on pcb board supply + missing black and yellow lines on print

b6hs

Sign
I everybody i need some advices

it there's been a power failure during a production…on a mimaki cjv 30
By removing the cover I glimpse a capacitor that had blown IMG_0011_2.jpg IMG_0012_2.jpg IMG_0010_2.jpg


temperatures doesn't increase now to heat media before and during print….

The engineer ask around 3000$ before move so….I bought a new pcb board do you think the missing lines will appear again with this new board or there is an other pb ??

Thanks in advance for your help
 

SightLine

Member
In the nozzle print - I don't personally think the missing lines have anything to do with the power supply. I'd think a few hour soaking of the nozzles might clear that up. Do a nozzle wash, fill the fluid in the cap, set it to a few minutes, let the heads park over the cap, unplug the printer for a few hours.

In the pictures you show of the power supply board, I don't see any blown capacitors. In the first photo the 3 rectangle objects with clear covers are relays. The capacitors are the tall cylindrical parts with silver tops and over a blue mark on them. If one blows or is failing the flat top will generally be bulging and/or splitting open.
 

b6hs

Sign
nozzle wash / relays

In the nozzle print - I don't personally think the missing lines have anything to do with the power supply. I'd think a few hour soaking of the nozzles might clear that up. Do a nozzle wash, fill the fluid in the cap, set it to a few minutes, let the heads park over the cap, unplug the printer for a few hours.

In the pictures you show of the power supply board, I don't see any blown capacitors. In the first photo the 3 rectangle objects with clear covers are relays. The capacitors are the tall cylindrical parts with silver tops and over a blue mark on them. If one blows or is failing the flat top will generally be bulging and/or splitting open.

hi Sightline, thx for your answer
right it's a relay it affect first of all the media heating… i will receive the new one during next week..
Im trying a nozzle wash but i don't think it will clear that up
i'll tell you
 

b6hs

Sign
http://www.signs101.com/forums/images/icons/icon3.png

Custody printhead wash return no effects.. Worst magenta disappeared
icon4.png
 

b6hs

Sign
so i changed the pcb power supply board and heater rework well
but PH goes bad.
Actually no color at all fired, i think there is negative pressure in lines i tried to recover them, to fill with syringe opening lines etc …. but ….no way


Any ideas ???
 

MikePro

Member
that test print has nothing to do with a power supply/heater.
the fact that you have mixed colors in your test print nozzle lines leads me to believe that you've got wiper/cappingstation/simple cleaning & maintenance issues. the hard area of missling lines, is most likely where you had a major head-strike.

edited: if you're now firing NO ink at all, start from scratch. give the leads a good cleaning and then flush your system with cleaning solution & refill with ink, observing the operation for any hiccups/inhibited flow.
 

b6hs

Sign
that test print has nothing to do with a power supply/heater.
the fact that you have mixed colors in your test print nozzle lines leads me to believe that you've got wiper/cappingstation/simple cleaning & maintenance issues. the hard area of missling lines, is most likely where you had a major head-strike.

edited: if you're now firing NO ink at all, start from scratch. give the leads a good cleaning and then flush your system with cleaning solution & refill with ink, observing the operation for any hiccups/inhibited flow.


Hello
Caping station,wiper, and pump are 3 months old...
 
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