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e.lit
Russia
103 Posts |
 Posted - 04 July 2010 : 03:41:49
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good day friends.
my 2901 has gone crazy, i need your advice, friends.
from time to time machine resets it's setups.
we print order and suddenly prints get brown and overexposed.
we start Daily Setup and first setup print looks like this - http://grandfoto.ru/stripes-072010.jpg
we do daily setup and uniformity to get rid of stripes.
five regular vertical thin stripes do not disappear but become less visible.
whats going on? i have no ideas :( |
Edited by - e.lit on 04 July 2010 03:47:06
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DJ
USA
116 Posts |
Posted - 04 July 2010 : 14:02:45
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e.lit,
When was the last time you cleaned the integrator section ?
Don't know why it's suddenly turning brown though.
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e.lit
Russia
103 Posts |
Posted - 04 July 2010 : 14:40:18
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we cleaned integrator about month ago. it was quite clean.
no I don't know |
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haphandinh
Vietnam
283 Posts |
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e.lit
Russia
103 Posts |
Posted - 05 July 2010 : 03:27:46
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| well, I've no uniformity errors. after 2 uniformities print looks almost perfect. only 5 repeating lines are still could be seen if you try hard |
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Noritsu Help
United Kingdom
1409 Posts |
Posted - 05 July 2010 : 11:52:29
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It is possible the setup data values are all maxed out.
The solution would be to carry out the initial setup and do the load voltage adjustment again.
Other possible causes are bad sectors on the hard drive causing data loss.
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e.lit
Russia
103 Posts |
Posted - 05 July 2010 : 14:28:38
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| does Initial Setup require any setup floppy disks? or it can be carried out without any additional media? |
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Noritsu Help
United Kingdom
1409 Posts |
Posted - 05 July 2010 : 14:55:18
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yes it can be carried out without any additional setup floppy disks.
You just need to enter the service mode. |
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e.lit
Russia
103 Posts |
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Noritsu Help
United Kingdom
1409 Posts |
Posted - 06 July 2010 : 18:26:41
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Was the first test print made on the same paper that you used to do the initial setup on?
I think there could be a problem with either the data output PCB (J390608) or the MLVA head.
Strange that you don't get any uniformity correction errors though.
How is it printing now after doing the daily setup? |
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anand
India
41 Posts |
Posted - 07 July 2010 : 00:49:42
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| I HAVE A ALL 2901 PARTS AVAILABLE |
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e.lit
Russia
103 Posts |
Posted - 07 July 2010 : 01:08:45
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quote:
Originally posted by Noritsu Help
Was the first test print made on the same paper that you used to do the initial setup on?
Yes that was my mistake. print was made on another paper which turned out to be untested after Initial setup.
i've made magazine registration setup for that paper, than uniformity, than emulsion number change, than Uniformity pattern 2,3 and 4. after all that prints get good.
let's wait several days to see if setup resets are gone. |
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Noritsu Help
United Kingdom
1409 Posts |
Posted - 07 July 2010 : 05:10:57
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I thought it very strange for the print to be that colour after the initial setup!
I'm glad you sorted the problem.
Lets hope the problem was just a setup issue and is not something more serious and expensive. |
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e.lit
Russia
103 Posts |
Posted - 08 July 2010 : 12:52:51
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Good day.
there was no reset during print job for two days. but we have some problems still.
in the morning first Daily Setup print is deep blue.
Uniformity goes crazy for no reason. Yesterday it was near perfect. Today prints are with stripes. we ran Uniformity, Uniformity pattern 2,3,4
Uniformity finished with error 6088-0006
Uniformity pattern 2 - 6088-0001
after pattern 3 and 4 we ran pattern 2 without errors.
after several hours uniformity get broken again
and we have Uniformity pattern 2 - error 6088-0001
restored from two days old backup - prints are good. machine asked to correct MLVA intensity. two Uniformities without errors.
what is going on? |
Edited by - e.lit on 08 July 2010 15:57:58 |
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e.lit
Russia
103 Posts |
Posted - 10 July 2010 : 06:22:21
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after two days without problems we meet them once again
morning daily setup - fist print is deep blue. after all setup colors are normal but print is with thin stripes.
Uniformity completed without errors.
but first print is brown like in previous post.
restore from good backup (all data) - no changes. prints are still brown and with stripes |
Edited by - e.lit on 10 July 2010 09:55:18 |
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Noritsu Help
United Kingdom
1409 Posts |
Posted - 13 July 2010 : 19:00:20
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ntermittent problems like this are the hardest to track down.
I'm guessing this is a problem with the data output PCB or the 5V power supply that drives that PCB.
Other possibilities are the MLVA head itself, though this is less likely as it completes the uniformity ok.
Also check all cooling fans are running, as too much heat can cause strange problems.
You may find turning the machine off at the breaker switch for 5 minutes will solve the problem temporally.
It may be worth replacing the hard drive and doing a software re-load to eliminate the possibility of a software related problem. |
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e.lit
Russia
103 Posts |
Posted - 14 July 2010 : 08:01:10
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I've replaced hard drive already - no help
i'll check fans. will report later |
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e.lit
Russia
103 Posts |
Posted - 14 July 2010 : 16:12:08
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looks like all fans are good on printer section. are there any fans inside printer?
how output PCB could be checked? |
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e.lit
Russia
103 Posts |
Posted - 15 July 2010 : 04:31:52
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i've found some regularity.
look, every morning we have deep blue prints. machine corrects them by +11 Yellow
during work something brakes (may by overheat?) and we get that yellow-brown prints (remember +11 Yellow in the morning?), machine corrects prints by -11 Yellow.
Which PCB could cause such a problem? |
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haphandinh
Vietnam
283 Posts |
Posted - 15 July 2010 : 05:35:50
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There are 2 fans named MLVA heatsink cooling fan 1 and 2. Try to check them.
I think Drive Voltage PCB (J390638) is malfunction. |
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e.lit
Russia
103 Posts |
Posted - 15 July 2010 : 06:35:02
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| I've cleaned exhaust cooling fan, but can't understand how to get to intake cooling fan? |
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anand
India
41 Posts |
Posted - 15 July 2010 : 12:38:29
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you want J390638 PCB ??????????? |
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AMIN.
Bangladesh
101 Posts |
Posted - 18 July 2010 : 15:10:20
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Hi e.lit,
why don't you look your MLVA lamp?That is the most important part of this problem relation.
Check your MLVA lamp can produced poor light or The lamp power supply gives perfect voltage or not[28v-dc].If the power supply send low or high voltage,calibrate that by"VR-1"placed on MLVA lamp power supply pcb.
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e.lit
Russia
103 Posts |
Posted - 19 July 2010 : 00:58:35
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| well, i replaced lamp with no change. also, take a note, machine state changes in one moment. so it could not be poor voltage. |
Edited by - e.lit on 19 July 2010 00:59:15 |
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e.lit
Russia
103 Posts |
Posted - 29 July 2010 : 02:08:19
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Hail, everybody!
I've resolved the problem by adding one more air conditioner. The problem was - overheating, as far as I see. |
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Topic |
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2901 resets setups
