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re: Ink problems, yet again
Hi, this follows on from our last posted topic “ink suppliers”.
We have had major problems with ink drying at cartridge head and in the pump. After changing ink system last discussed in above topic we have just gone to print and noticed no ink is coming through again on two different heads LM and Blue. If anyone is using a roland machine, have they had same problems?
We are doing maintenance checks every three to four days and always use the machine at least twice a week to print – is this neglect or lack of experience?
Any help will be gratefully received!
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6 Replies
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are you on cartridges now or tanks? If tanks, air maybe getting into the ink lines causing the heads to block. However I am JV3 user and it can happen on Bulk Ink Tanks which are gravity fed.
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We are using cartridges but they are re-fillable ones! We have not filled up with ink yet since the new system was changed!
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The original carts have bladders that squeeze the inks out the carts (well sort of) but they will NOT allow air in the lines at all.I dont see why you changed the ink system if your printing is so infrequent why not just change back to ordinary carts if possible , seems to me the system/inks you have now are very problematic.
Apart from air locks if you have eliminated that , other problems might be cracked nozzles the dampers go on , the o ring on the damper thats not making a proper seal or a capping station that is faulty. Hopefully its not a head problem -
I would do a 200mm tall by the width of your machine print every day at the end of the day if the machine has not been used for a live job. Waste of matrials irrellevant to to money saved through time wasting trying to solve the problems that can happen with long periods of no use.
We run grenadiers/ rebadged rolands, they print most days minimum 5hours each mostly they go on when we come in and are still printing when we leave.
The christmas shutdown for us is nearly two weeks rather than flush out the machine one of my team comes in every other day and does a 200mm print. Keeps everything moving stops heads drying up and no waste from a flush of inks and reload of inks.
If your machine does this we run everyday either the problems will get less or better still go away and you will discover a problem quickly which will be easier to sort and not when you are trying to get a job out.
How hot is the room where you have the printer?
Don’t take offence to this guys but it sounds like something you have done or have meant to have done and not.
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I have a Cadet which doesn’t get regular use but I do print from it every two days and manually clean as well (with the cleaner and buds)
I haven’t had any problems so far and haven’t felt the need to cap the head with cleaner in it.
I just ensure that what I am printing uses all colours full width text usually about 50 to 100 mm tall when I’m away i get the sister in law to do it.
I even wonder sometimes if I need to do this as the machine goes through a cleaning cycle on its own when you start it sometimes anyway, but I’m not brave enough to print from it every two to three days.Goop
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identical to the JV3, cleaning buds and do that everyday and a 20minute cycle. However you must print at least something within 3-4 days –
1: You are wasting ink! you get about 2-3 months out of a 440ml cart on JV3 if u leave without printing. (head cleaning and squirting)
2: ink will dry slightly on the head arrangement as it is air drying. Though minimal, so maintenance is critical.
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