340 magenta coloured prints

[langwoods]

hey we are getiing magenta coloured prints.. see attached file.

Anyone know what could be wrong??

[Cryptex85]

post here the upkeep test

[langwoods]

the upkeep test looks fine it only does it sometimes..

printed about 50 this morning and they are nearly all magenta except for a few in between which were fine.

[langwoods]

i thought the upkeep print looked fine, but it does appear to have a brownish reddish tinge and cannot correct this. Printing black and white prints now look sepia.

[Cryptex85]

This issue comes up every so often or is it permanent?

[langwoods]

every so often, it has been just in the mornings, then after restarting it sorts itself out..

[Cryptex85]

ok replace the aom driver

[sisir]

Replace the AOM Driver

[langwoods]

i think the problem was power supply was not constant..

[Kevbo37]

If you are not getting any laser errors then it is definitely an intermittent AOM Driver problem.

[yustas]

Yes

First of all AOM driver needs to be checked.

Swap it with the next one.

Hint:

If you place image with customers faces for free access survey - cover their eyes with black or blur it.

This is a common rule.

[DPC]

Hi I have a Frontier 330 with a similar problem but with the color blue and magenta.

When I test the calibration of the ok comes only after 4-5 prints when I print test and after 5 or 10 minutes back to be redone.

I thought it was a problem of chemistry but also after changing everything looks the same

[tech2]

Hi all,

sirsir is correct in most cases, it is the AOM driver but there is another way sometimes this problem is solved. Go to setup and maintenance and do an upkeep print from there, then when the upkeep has been corrected (if it is corrected) initialize the data by pressing the initialize button. You will find that the colour change is permanent. This often happens after paper changes, where you have a different emulsion.

Regards

Tech2

[Kevbo37]

Tech 2 If you initialize the data after doing the upkeep print, don't you lose everything you just did?

[tech2]

Kevbo37,

That's right, that's the point then the next upkeep after initialization  will correct the colour shift-sorry forgot to say do another upkeep-Kevbo keeps me honest again.

Tech2

[MasterLaser]

And after 2 weeks you have to replace AOM anyhow.

MasterLaser

[Posse]

i think he fix his problem by  power supply was not constant... or he still having the same problem?.. post if u fix it please, we would like to know the solution..

[Ngoc2005]

Dear expert, I have the same problem with my Frontier 340, I'm from Australia, can someone supply me 1 AOM and send over? Please advice how much and what condition new or 2nd hand. The situaltion is my lease will end in 6 monts so I don't the future yet. Therefore cheaper is better. Thanks in advance

[chriscooper]

a magenta colour shift in the mornings can indicate that you need to change the laser printer .  Run a control strip through first to eliminate any chemical problem .  

I recently changed my AOM Driver  . When this was done I had to Initialize the cassettes in the Set Up and Maintenance screen .  Thank goodness it was only the AOM Driver .  A lot cheaper to replace than the laser printer .  Good luck .