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340 sos error


MALACAL
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  • 3 weeks later...

@malacal

Please read here:

www.minilablaser.com/errors.htm

at the end of the page you will see the right solution

@sisir,

Why do you always recommend to clean the mirrors?! In each topic where people write about the SOS error - you advise it.

As I wrote recently, if the end user will damage the mirror, who will pay for it? you? I doubt...

It is impossible to buy the spare parts for laser unit. So from where he will get it?

PLEASE NOTE ALL OWNERS of MINILABS with laser engines:

Mirrors in the laser unit is EXTREMELY easy to damage!

If there is no signal of synchronization - it means that there is no beam at all... Not a weak signal (you mean)..

Advising to open the cover you give people a bad advice.

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Yustas is correct! cleaning the mirrors is only going to solve a line in the prints or a fuzzy prints or some other image related problem. The sos error is never caused by a dirty mirror. The mirror would have to be extremely dirty which cannot happen inside the unit. It is more likely a bad AOM driver or cable or sensor or even a bad laser.

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@minilablaser

I agreed with you that the mirrors in the Laser Unit easy to damage, but you are wellknown that the SOS detection system uses all the Mirrors in laser unit. I found most of the cases of SOS coming from dirty mirrors. As the 370 model is an older model and many users does not clean their mirrors in laser unit, the message can occure. Especially I found most of the cases are occuring from dirty mirrors.

You can repair faulty Laser unit, how will you cost for it? 4000$~5000$, am I right? I replaced a faulty Laser Unit in which the polygon motor damages and another mirror was fully broken, with only 4000$ from Singapore. So, what should the user do? If he can get solution by cleaning the mirrors, they dont need to invest about 4000$. But for SOS error they should invest 4000$, also for broken mirror, the same.

So, please suggest with financial factor also.

@Kevbo37,

Dear sir would you explain how SOS is detected in the Laser Unit? Do you know it? I am sure, you dont know the process of SOS detection. But bad AOM causes sometimes, not everytime.

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@minilablaser

I agreed with you that the mirrors in the Laser Unit easy to damage, but you are wellknown that the SOS detection system uses all the Mirrors in laser unit. I found most of the cases of SOS coming from dirty mirrors. As the 370 model is an older model and many users does not clean their mirrors in laser unit, the message can occure. Especially I found most of the cases are occuring from dirty mirrors.

You can repair faulty Laser unit, how will you cost for it? 4000$~5000$, am I right? I replaced a faulty Laser Unit in which the polygon motor damages and another mirror was fully broken, with only 4000$ from Singapore. So, what should the user do? If he can get solution by cleaning the mirrors, they dont need to invest about 4000$. But for SOS error they should invest 4000$, also for broken mirror, the same.

So, please suggest with financial factor also.

@sisir

If the customer damage the mirrors he will blame you in it.

In this case he will have to obtain another unit and all financial saves go to zero.

@malacal

Please explain one more time for stupids...

You place two laser unit with SOS error to another lab and you have no errors at all????

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Sisir,

The SOS (start of scan) signal is detected by a small photo sensor which receives the reflected beam near one edge (the leading edge) as the beam starts each scan across the paper. For the signal to not be detected the beam would have to be non-existent. If the mirrors were so dirty as to stop any reflection of the beam, it would have caused other problems long before that point. Most notably the operator would never be able to get a good condition print and would have to replace the laser unit before the sos error occurred.

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