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Archived from groups: comp.periphs.printers (More info?)
Burt wrote:
>"measekite" <measekite@yahoo.com> wrote in message
>news:Jynje.1184$mK.949@newssvr13.news.prodigy.com...
>
>
>>Burt wrote:
>>
>>
>>
>>>"measekite" <measekite@yahoo.com> wrote in message
>>>news:T18je.1019$mK.895@newssvr13.news.prodigy.com...
>>>(snip)
>>>
>>>
>>>
>>>
>>>>They also told me that R800/1800 users who print infrequently should turn
>>>>their printers off to avoid clogging the printhead. Leaving it turned on
>>>>and unused will crystallize the pigments inside the head.
>>>>
>>>>
>>>>
>>>(snip)
>>>
>>>Perhaps Arthur Entlich can follow up on this response if I am not quite
>>>accurate in my critique of the above statement. My chemistry and physics
>>>classes were, unfortunately, over 50 years ago. Crystallization occurs
>>>when a solution of soluable salt(s) becomes supersaturated and forms
>>>crystals, a uniquely shaped solid physical form of the salt which had been
>>>in solution (usually aquious). This can occur with evaporation or a drop
>>>in temperature of the liquid that had been previously heated to create a
>>>highly saturated solution. Pigmented inks are essentially a suspension
>>>of minute colored particles. Clogging probably occurs when the carrier
>>>liquid undergoes a degree of evaporation and caused the pigment particles
>>>to drop out of the suspension, clump together, and thus clog the print
>>>head. Someone on the NG can correct me if I am wrong. If this simplified
>>>analysis is correct, either the Epson rep doesn't understand the chemical
>>>and/or physical qualities of his products' inks or his comments have been
>>>inaccurately reported. If it is my error I stand corrected.
>>>
>>>
>>Dear Reverend
>>
>>The Epson Technical Support Person looked up this information in their
>>database. It was not that one person misunderstood what she learned.
>>This was documented by the Epson Engineers. Maybe you need to take
>>another course and then reverse engineer their ink using a chemical
>>analysis.
>>
>>
>
>Thank you for the honorific salutation. Sure beats the hell out of the ones
>you've earned on this NG! You and your tech support person (and possibly
>the individual who put that information in their database) need to brush up
>on their Chem 1A-1B and Physics 6A-6B notes to differentiate between
>solutions and suspensions and their resultant changes with evaporation of
>their solvents or carrier liquids.
>
Yes I know you are a fart smeller.
Oh
I meant to say smart fellow.
>I guess your MBA from Stanford also
>qualifies you as an expert in physics and chemistry, or did I miss the part
>of your CV that included a masters in chemistry? When you start to believe
>everything a sales rep or tech support person tells you (some are very
>knowledgeable and some are unwitting masters of misinformation) I have a
>bridge to sell you (quoted from a previous Measekite post.) Frankly, (no
>reference to Frankie) I've learned more and been able to solve more computer
>and related problems by reading newsgroups and forums to see what users have
>learned through THEIR OWN EXPERIENCE, not what they relate second-hand from
>a sales rep or tech support person.
>
>
>
>
Burt wrote:
>"measekite" <measekite@yahoo.com> wrote in message
>news:Jynje.1184$mK.949@newssvr13.news.prodigy.com...
>
>
>>Burt wrote:
>>
>>
>>
>>>"measekite" <measekite@yahoo.com> wrote in message
>>>news:T18je.1019$mK.895@newssvr13.news.prodigy.com...
>>>(snip)
>>>
>>>
>>>
>>>
>>>>They also told me that R800/1800 users who print infrequently should turn
>>>>their printers off to avoid clogging the printhead. Leaving it turned on
>>>>and unused will crystallize the pigments inside the head.
>>>>
>>>>
>>>>
>>>(snip)
>>>
>>>Perhaps Arthur Entlich can follow up on this response if I am not quite
>>>accurate in my critique of the above statement. My chemistry and physics
>>>classes were, unfortunately, over 50 years ago. Crystallization occurs
>>>when a solution of soluable salt(s) becomes supersaturated and forms
>>>crystals, a uniquely shaped solid physical form of the salt which had been
>>>in solution (usually aquious). This can occur with evaporation or a drop
>>>in temperature of the liquid that had been previously heated to create a
>>>highly saturated solution. Pigmented inks are essentially a suspension
>>>of minute colored particles. Clogging probably occurs when the carrier
>>>liquid undergoes a degree of evaporation and caused the pigment particles
>>>to drop out of the suspension, clump together, and thus clog the print
>>>head. Someone on the NG can correct me if I am wrong. If this simplified
>>>analysis is correct, either the Epson rep doesn't understand the chemical
>>>and/or physical qualities of his products' inks or his comments have been
>>>inaccurately reported. If it is my error I stand corrected.
>>>
>>>
>>Dear Reverend
>>
>>The Epson Technical Support Person looked up this information in their
>>database. It was not that one person misunderstood what she learned.
>>This was documented by the Epson Engineers. Maybe you need to take
>>another course and then reverse engineer their ink using a chemical
>>analysis.
>>
>>
>
>Thank you for the honorific salutation. Sure beats the hell out of the ones
>you've earned on this NG! You and your tech support person (and possibly
>the individual who put that information in their database) need to brush up
>on their Chem 1A-1B and Physics 6A-6B notes to differentiate between
>solutions and suspensions and their resultant changes with evaporation of
>their solvents or carrier liquids.
>
Yes I know you are a fart smeller.
Oh
I meant to say smart fellow.
>I guess your MBA from Stanford also
>qualifies you as an expert in physics and chemistry, or did I miss the part
>of your CV that included a masters in chemistry? When you start to believe
>everything a sales rep or tech support person tells you (some are very
>knowledgeable and some are unwitting masters of misinformation) I have a
>bridge to sell you (quoted from a previous Measekite post.) Frankly, (no
>reference to Frankie) I've learned more and been able to solve more computer
>and related problems by reading newsgroups and forums to see what users have
>learned through THEIR OWN EXPERIENCE, not what they relate second-hand from
>a sales rep or tech support person.
>
>
>
>