Re: filmscanners: Two yellow bands ...
- Original Message - From: "Arthur Entlich" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, April 01, 2001 6:16 AM Subject: Re: filmscanners: Two yellow bands ... Art answered: > Ezio wrote: > > Dearests , > I didn't know you cared ;-) > I have these 2 yellow bands on the HP-6200c flatbed. > Ah, I see you want something from us ;-) Does it happens outside Italy too ? ;-) > These bands can be caused by several things. In order of ease to fix: > 1) The glass could have dirt on it (not likely to be that linear) > Fix: Clean glass, both inside and out DONE ... no improvements > 2) The calibration strip might have been damage > Most flatbeds have a calibration process they go through to set each CCD > threshold for each scan. This strip is usually glued under the top > surface of the scanner under the plastic casing, above the glass platen > at the top of the scanner, which the sensor bar reads to adjust the > voltages of the sensors. If this has become scratched of damaged in the > black areas, it will cut back on the sensitivity of the CCD sensors in > that area. So, you might need a new calibration area, or it might > require a cleaning (since you have yellow bands, it is more likely the > black is rubbed off than the white parts are dirty.) > > Fix: Open up scanner to observe calibration strip, clean or > repair/replace, as needed. I'll open today > 3) The scan head/CCD of mirrors might have some dirt on them. They will > need very careful cleaning. Keep in mind scanners and photocopiers use > FRONT surfaced mirror which are easily scratched. > > Fix: Open scanner, carefully clean all optical components. As above _ Sincerely. Ezio
Re: filmscanners: Two yellow bands ...
Ezio wrote: > Dearests , I didn't know you cared ;-) I have these 2 yellow bands on the HP-6200c flatbed. > Ah, I see you want something from us ;-) These bands can be caused by several things. In order of ease to fix: 1) The glass could have dirt on it (not likely to be that linear) Fix: Clean glass, both inside and out 2) The calibration strip might have been damage Most flatbeds have a calibration process they go through to set each CCD threshold for each scan. This strip is usually glued under the top surface of the scanner under the plastic casing, above the glass platen at the top of the scanner, which the sensor bar reads to adjust the voltages of the sensors. If this has become scratched of damaged in the black areas, it will cut back on the sensitivity of the CCD sensors in that area. So, you might need a new calibration area, or it might require a cleaning (since you have yellow bands, it is more likely the black is rubbed off than the white parts are dirty.) Fix: Open up scanner to observe calibration strip, clean or repair/replace, as needed. 3) The scan head/CCD of mirrors might have some dirt on them. They will need very careful cleaning. Keep in mind scanners and photocopiers use FRONT surfaced mirror which are easily scratched. Fix: Open scanner, carefully clean all optical components. Art > What should I do ? ... should I bring the scanner to HP Repair Center ( > months without the unit and huge amount of money) or in your opinion it > is possible to try some trick to repair it at home. >
Re: filmscanners: Two yellow bands ...
Ezio wrote: >Dearests , I have these 2 yellow bands on the HP-6200c flatbed. >What should I do ? ... should I bring the scanner to HP Repair > Center ( months without the unit and huge amount of money) or > in your opinion it is possible to try some trick to repair it at home. I'd say the repair centre is the only option - even with some sort of contaminant on the CCD it's not something you want to touch yourself. Of course you could buy a Canon flatbed in the meantime; they're very cheap and give great results (but as far as I can make out are useless for printer profiling). Rob PS Don't forget to turn off HTML in your emails. You can still attach small images as attachments rather than inline images. The image will look ugly for those using the list digest but at least they'll be able to read your email. :)
Re: filmscanners: Two yellow bands ...
I have but 3 suggestions: scan small items which fit between the bands only; return the HP to HP and enjoy life outside for the while; or replace it with a Minolta or Nikon. Maris - Original Message - From: Ezio To: Film Scanners News Group Sent: Saturday, March 31, 2001 1:12 PM Subject: filmscanners: Two yellow bands ... Dearests , I have these 2 yellow bands on the HP-6200c flatbed. What should I do ? ... should I bring the scanner to HP Repair Center ( months without the unit and huge amount of money) or in your opinion it is possible to try some trick to repair it at home. I try to attach a small jpeg showing the defect ... wishing not to be filtered/killed by the listserve. 5KB only ! Sincerely. Ezio
filmscanners: Two yellow bands ...
Dearests , I have these 2 yellow bands on the HP-6200c flatbed. What should I do ? ... should I bring the scanner to HP Repair Center ( months without the unit and huge amount of money) or in your opinion it is possible to try some trick to repair it at home. I try to attach a small jpeg showing the defect ... wishing not to be filtered/killed by the listserve. 5KB only ! Sincerely. Ezio
