Digital BW, The Print

I don't seem to have any problem with OCP inks here on R1800.

--- On Wed, 3/18/09, Greg <dfaprinting@...> wrote:
From: Greg <dfaprinting@yahoo.com>
Subject: [Digital BW] Re: Use of 3rdparty inks
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Date: Wednesday, March 18, 2009, 2:52 PM











    
            



I would say that I'm not at all surprised that there was a difference between the inks. I  bet you even get differences like this between different batches of Epson inks.



As I understand it, the HEAD ID tells the processor how high the drive voltage should be for pigment or dye ink (remember back when you had a choice) and probably the frequency of the pulses (or maybe duty cycle) to drive the piezo. Both of these things will change the way a certain ink will spray, and of course small variations in surface tension, viscosity, and probably about a dozen other factors will affect the spray pattern.



Also this should be no surprise as I thought this info about head ID was known way back when people were putting different inks in the 1120 and 1200 printers. I seem to recall a little talk about fixing issues by changing the values in the ID string.



I'm not real concerned.




 

      

    
    
	
	 
	
	








	


	
	


      

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