Techkon RS 800 & ExPresso SW

Hello all,
Does any one has experience with Techkon RS400 or RS800 and the SW ExPresso for adjusting ink keys on press?
I’m looking for a solution that can measure the control bar in the press sheet and show the recommended ink key adjustments.
Any advice will be appreciated.
Xavier

Hello Xavier
The SW ExPresso is a basic solution to recommend ink key adjustments
based on the density of the primaries.
At DRUPA System Brunner shows an alternative SW based on RS 400 wich
calculates the recommendations for the ink key adjustments on density,
TVI and greybalance.

I prefer the brunner solution, but it is more expensive (price at DRUPA
incl. RS 400 was round about 25.000,- EUR as I remember)

From all SW I know (Heidelberg, MAN-Roland, X-Rite, Komori,
GretagMacbeth spectromat, brunner) I like most brunner, because the
algorithms for Ink key recommendations fits best to the approach how a
printer is adjusting the press according visual approches.

Jan-Peter

xavier_DE0 schrieb:

Hello all,
Does any one has experience with Techkon RS400 or RS800 and the SW ExPresso for adjusting ink keys on press?
I’m looking for a solution that can measure the control bar in the press sheet and show the recommended ink key adjustments.
Any advice will be appreciated.
Xavier


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homann colormanagement ------ fon/fax +49 30 611 075 18
Jan-Peter Homann ------------- mobile +49 171 54 70 358
Kastanienallee 71 ------- colormanagement.de
10435 Berlin ---------

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Hello Jan-Peter,

Thanks for your recommendation, I agree with you that System Brunner is the best solution, but as you point, it’s much more expensive. Do you have any personal experience with ExPresso SW or/and Techkon RS400 or RS800?

Do you think ExPresso is worth it, or if we don’t go for the System Brunner it’s better not to waste the money?

Hello Xavier
ExPresso / RS 400/800 is much better, than a densi/spectro for measuring
patch by patch.

If you want to enter strip-reading ExPresso is fine.

My personal experience is based on measuring strips on some test-prints
and that worked fine.

Most customers I have, use the strip readers from the press manufacturer
because, they can directly control the ink keys. But the prices for
such equipment are very high (75.000,- EUR and higher…)

there is only one external solution, which can drive the ink keys
directly: inkzone from

digiinfo.ch

inkzone is fine for presetting the ink keys by the inkaoumt of the
formproof. But a link to measuring solutions like Expresso is still
missing…

Jan-Peter

xavier_DE0 schrieb:

Hello Jan-Peter,

Thanks for your recommendation, I agree with you that System Brunner is the best solution, but as you point, it’s much more expensive. Do you have any personal experience with ExPresso SW or/and Techkon RS400 or RS800?

Do you think ExPresso is worth it, or if we don’t go for the System Brunner it’s better not to waste the money?


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homann colormanagement ------ fon/fax +49 30 611 075 18
Jan-Peter Homann ------------- mobile +49 171 54 70 358
Kastanienallee 71 ------- colormanagement.de
10435 Berlin ---------

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Hi Jan-Peter, thanks for your advice. InkZone from Digital Information Ltd. is something I’ve been searching for some time. I will give Techkon products a try.
Xavier

We use a DMS910 for plate measurements on PearlDry material here at Sony. The instrument is very accurate; they claim 0.5% accuracy in dot measurements, but I’ve experienced greater than 0.25% in practice.

Plus, the ability to save screenshots of the dots right there in the software is powerful stuff.

If their other products are as good as the DMS, I would expect great things!