Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale <stevekale@b...> 
wrote:
> Here is precisely what I see.  When I open Measure Tool it searches for the
> dongle and then says it will operate in limited demo mode.  I then click on
> Spot and it asks me to place the device on a white reference.  When I click
> ok a window called Spot Measurement opens with Lab selected and Reference
> checked.  Underneath reference are the values 80,0 and 0 (54.7, 56.7, 46.8
> if the colour space is changed to XYZ).  These same values appear below
> sample.  I then select Sample and then take the first measurement.  If I
> measure the 100% step on the K ink of the ink separation page I get the
> following values below sample (ref values remain unchanged): 49.3, 49.9,
> 32.1 (Lab 76.0, 3.3, 12.6).  And this is a very black patch.  If I then
> measure the 100% patch of the combo ink, ie a dark grey patch) I get 141.9,
> 142.9, 110.7 (Lab 114.7, 5.4, 4.7).  Measuring EEM paper white I get 189.4,
> 166.2, 189.0 (Lab 121.4, 33.9, -26.8).
> 
> If at the beginning rather than selecting Sample I click start then
> Reference becomes 189.6, 166.3, 189.4 (Lab 121.4, 34.0, -26.9).  Sample is
> then checked.  Subsequent measures of the same patches and paper white are
> not materially different from the numbers above.
> 
> It is as though the scale is completely out of whack.

Yes, that sounds out of whack.  I don't think you should every
get a 3 digit value.  Lab goes from 0 to 100.

Roy

> 
> 
> From: "Roy Harrington" <roy@h...>
> 
> I guess I'm still suspicious that you might be looking at the wrong column.=
> 
> When the spot window first comes up, the Reference column is selected.
> So the first click on the device fills in the Reference column, but immedia=
> tely
> after the Sample column is selected but no values have been filled in.
> So it's in a state where the right column named Sample is selected but the
> values you should be looking at are on the left under Reference.
> After this you can continue measuring by clicking the device and the values=
> 
> will all be under Sample.
> 
> Roy
> 
> 
> 
> 
> [Non-text portions of this message have been removed]