> Windex contains ammonia which can etch coatings. Never use it > on optics.
I assumed as much but was not sure, which is why I made a point of articulating my suggestions the way I did and restricting my suggestion of Windex's to the plate glass bed of the scanner if it were a flatbed scanner, saying to be careful not to let any of it run off the glass into the innards of the scanner, and following it with the statement: > >As for the other parts, you need to be careful not to scratch or leave lint on the > >surfaces of the optics and mirror. I suspect that one would also need to be careful > >about what solutions one uses to make sure that they do not leave their own film residue > >over the optics and mirror, don't contain anything that will deteriorate the internal > >parts, and do not damage the electronic components and elements. > Electronics grade alcohol is generally accepted as best for > optics. I am unfamiliar with electronics grade alcohol; how does it differ from denatured alcohol? I understand why one might not want to use rubbing alcohol' but is denatured alcohol the same as electronic grade? >I use cottonballs rather than cloth. I suppose they could work just as well as long as they do not leave behind any form of lint or cotton strings or dust. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of lists > Sent: Saturday, August 06, 2005 12:43 PM > To: [EMAIL PROTECTED] > Subject: [filmscanners] Re: HP PhotsSmart - questions > > Windex contains amonia which can etch coatings. Never use it > on optics. > Electronics grade alcohol is generally accepted as best for > optics. I use cottonballs rather than cloth. > > > Laurie Solomon wrote: > > >I do not have answers to the question of cleaning the > internal optics, > >mirror, or sensors; nor do I have an answer to why 150 dpi appears > >sharper than 300 dpi when scanning a 3 x 5 color print. I > take it that > >this is a flatbed scanner. > > > >I would suggest the obvious with respect to cleaning. You > should start > >by cleaning the glass bed with a soft lintless cloth and a little > >Windex, being careful not to let any of the liquid run off the glass > >and into the internal areas of the scanner. As for the other parts, > >you need to be careful not to scratch or leave lint on the > surfaces of > >the optics and mirror. I suspect that one would also need to be > >careful about what solutions one uses to make sure that they do not > >leave their own film residue over the optics and mirror, > don't contain > >anything that will deteriorate the internal parts, and do not damage > >the electronic components and elements. > > > >As for the question of " why 150 dpi appears sharper than > 300 dpi when > >scanning a 3 x 5 color print," you did not tell us if the result you > >speak of was on the monitor or on a hard copy print ( and if the > >latter, what type of print laser, inkjet, etc.) The answer to this > >could furnish some indications of the reasons for this. > > > >----Original Message---- > >From: [EMAIL PROTECTED] > >[mailto:[EMAIL PROTECTED] On Behalf Of > >[EMAIL PROTECTED] > >Sent: Saturday, August 06, 2005 8:37 AM > >To: [EMAIL PROTECTED] > >Subject: [filmscanners] HP PhotsSmart - questions > > > > > > > >>Hi, > >> > >>Been reading the posts here for quite some time. Just got into > >>scanning. In fact the recent thread on Cheap Film Scanners > woke me up > >>:-) I have one that's at the bottom of that heap. It's HP > PhotoSmart > >>vintage 1997. SCSI interface, which makes it S10 I guess. > >> > >>I'm using the current version of HP software from their > Support site. > >>Did a calibrate with a white piece of paper (the card is gone). The > >>scanner was donated by a friend. > >> > >>Now the question. I started with a simple color print > (3x5) scan and > >>noticed that setting it to 150dpi gives a "sharper" > >>result than 300dpi. > >> > >>Can that be explained in any way? Saved as bmp and jpg, > same results. > >> > >>Secondly, should I take the scanner apart and attempt to clean any > >>optical components? I'm quite handy with small tools :-) After > >>sitting for so many years and some usage by the previous owner, it > >>must have some film whatever the optical pickup is. > >> > >>Regards, > >> > >>Rich Koziol > >> > >>-------------------------------------------------------------- > >>-------------------------- > >>Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe > >>filmscanners' or 'unsubscribe filmscanners_digest' (as > appropriate) in > >>the message title or body > >> > >> > > > > > > > > > > > > > > -------------------------------------------------------------- > -------------------------- > Unsubscribe by mail to [EMAIL PROTECTED], with > 'unsubscribe filmscanners' > or 'unsubscribe filmscanners_digest' (as appropriate) in the > message title or body > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.338 / Virus Database: 267.10.1/64 - Release > Date: 8/4/2005 > > -- No virus found in this outgoing message. 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