Drum scanner - Factbites

Drum scanner - Factbites
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Topic: Drum scanner

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	Image scanner - Wikipedia, the free encyclopedia
		The use of drum scanners has declined significantly as flatbed scanners based on charge-coupled devices have dropped in price; however, drum scanners are still used for certain high-end applications, such as museum-quality archiving of photographs, desktop publishing, and print production of books and magazines.
		Both these types of scanners use a charge-coupled device (CCD) as the image sensor, whereas a drum scanner uses a photomultiplier tube as the image sensor.
		In computing, a scanner is a device that analyzes a physical image (such as a photograph, printed text, or handwriting) or an object (such as an ornament) and converts it to a digital image.
	en.wikipedia.org /wiki/Scanner_(computing) (1037 words)

	High End and Flatbed Scanners - (DTP Prepress)
		A very fundamental difference between Drum Scanners and Flatbed machines is in the ability of the operator to study any/all areas of the original on a drum scanner, directly from the original and make adjustments to the set up and colour controls as necessary.
		Most high-end scanners today are used for bitmap image output linking in with or bridging to the digital desktop environment, and now replacing them is the smaller machines referred to as Desktop Drum Scanners.
		Many popular older scanners kept the values in analogue form well into the workings of the colour computer and those machines were easy to operate because of the virtually infinite variation of values and feedback the operator had at his/her fingertips on the many controls.
	www.dtp-aus.com /hi_flat.htm (1037 words)

	Flatbed Scanners Uk Flatbed Scanners - Biggest scanner resource on the Internet
		ICG Drum Scanners - Drum Scanner Accessories - ICG UK ICG UK supply a full range of used, fully refurbished ICG Drum Scanners including, 350i, 355, 360, models together with ICG ScanXact Software and hardware upgrades...
		to high-end flatbed scanners are the row on...
		Flatbed scanners - Choose from our selection of flatbed scanners, portable scanners, film scanners, photo scanners and more.
	scanners.logdog.info /index.php?k=flatbed-scanners-uk-flatbed-scanners (1037 words)

	Concluding review of best buy recommendation for flatbed scanners.
		Fujifilm originally had three classes of scanners: an outstanding drum scanner, a top of the line C-550 flatbed (my absolute favorite since it could do 3-D objects too), and two FineScan models.
		Mention of the drum scanners which Fujifilm also makes.
		since this scanner is larger, has 5000 optical dpi over the entire bed, and prepress quality software, it is rather unfair to compare it to other scanners which are smaller, have full dpi only down the sweet spot (a narrow band down the center of the scanner).
	www.cameras-scanners-flaar.org /Fujifilm_Electronic_Imaging/Fujifilm_C550_Lanovia_scan.html (1037 words)

	Image Scanner Encyclopedia Article, Description, History and Biography @ TheLocalColorArtGallery.com
		As of 2004, a good flatbed scanner has an optical resolution of 1600–3200 dpi, high-end flatbed scanners can scan up to 5400 dpi, and a good drum scanner has an optical resolution of 8000–14,000 dpi.
		A desktop scanner is usually composed of a glass pane, under which there is a bright light (often xenon or cold cathode fluorescent) which illuminates the pane, and a moving charge-coupled device.
		In computing, a scanner is a device that analyzes a physical image (such as a photograph, printed text, or handwriting) or an object (such as an ornament) and converts it to a digital image.
	www.thelocalcolorartgallery.com /encyclopedia/Image_scanner (1229 words)

	FLAAR info on drum scanner manufacturers.
		The favorite way for flatbed scanner companies to compete is to suggest their scanners are "drum scanner quality." This type of claim shows all the more pointedly that it takes a real drum scanner to produce drum scanner quality.
		Not many drum scanner companies were still functioning enough to exhibit at DRUPA '04: Screen did not have their drum scanner on exhibit.
		As you can see, more than half the drum scanner manufacturers went belly up between 1999 and 2002 (most failed in the last two years).
	www.flatbed-scanner-review.org /drum_scanner_reviews/drum_scanner_reviews_links.html (1907 words)

	Drum scanner reviews and product comparisons between ICG, Howtek, Fuji, and Heidelberg
		At DRUPA trade show I asked several manufacturers of drum scanners why they were offering new models and the unanimous reply was that the worldwide demand for drum scanners was booming.
		The demand for drum scanners is rising despite the improvement in quality in flatbed scanners.
		But the new ICG drum scanner can be operated by the same people that already work in your company.
	www.wide-format-printers.org /drum_scanner_reviews_ICG_Howtec/drum_scanner_reviews_ICG.html (635 words)

	Image scanner - Wikipedia, the free encyclopedia
		Both these types of scanners use a charge-coupled device (CCD) as the image sensor, whereas a drum scanner uses a photomultiplier tube as the image sensor.
		A desktop scanner is usually composed of a glass pane, under which there is a bright light (often xenon or cold cathode fluorescent) which illuminates the pane, and a moving charge-coupled device.
		In computing, a scanner is a device that analyzes a physical image (such as a photograph, printed text, or handwriting) or an object (such as an ornament) and converts it to a digital image.
	en.wikipedia.org /wiki/Image_scanner (1126 words)

	What is optical scanner? - A Word Definition From the Webopedia Computer Dictionary
		Industry-strength drum scanners use a different technology that relies on a photomultiplier tube (PMT), but this type of scanner is much more expensive than the more common CCD -based scanners.
		A scanner works by digitizing an image -- dividing it into a grid of boxes and representing each box with either a zero or a one, depending on whether the box is filled in.
		Hand-held scanners are adequate for small pictures and photos, but they are difficult to use if you need to scan an entire page of text or graphics.
	www.webopedia.com /TERM/o/optical_scanner.html (691 words)

	Guide 1: Planning an Imaging Project
		Flatbed scanners, drum scanners, and film scanners using linear arrays tend not to suffer from nonuniformity problems, in part because their illumination source is often accounted for at scan time.
		A scanner must be selected in the context not only of the characteristics of the object to be scanned but also of the intended use of the scanned image.
		While dust is a function of scanner, document, and environment hygiene, the extent to which scratches in film or on a flatbed platen are hidden is often overlooked as a scanner selection criterion.
	www.rlg.org /legacy/visguides/visguide2.html (7147 words)

	Helpful comparative reviews on 35mm slide scanners, prepress flatbed scanners, drum scanners and wide format scanners.
		Our scanner reviews are dedicated to the kind of scanner that would be useful in a photo archive, photo lab, library, museum, or any individual who really values and appreciates the highest quality.
		Worst problem with scanners today is the shameless hype on dynamic range and using bit depth to claim unrealistic “quality.” The scanners that are truly good (Creo, Screen and comparable prepress brands) don’t have to lie with false specs.
		But, if a company is nervous about us having their scanner to benchmark, then, well, it’s kind of hard to write about it other than to comment on the brands and models that we do know work perfectly.
	www.flatbed-scanner-review.org (7147 words)

	NIKON SUPER COOLSCAN 4000 ED FILM SCANNER REVIEW
		I recently had a chance to compare this scanner's output directly with drum scanner output.
		A quick explanation of Dmax would be the ability of the scanner to find detail in dense areas (dark or shadow areas in slides) of film and render that detail in the resulting scan accurately without patterned or random digital noise pixels.
		This scanner's ability to see into dense areas of film and produce noise free scans is excellent.
	www.sphoto.com /techinfo/scs4000.html (5171 words)

	eDigitalPhoto: Film Scanner Roundup
		Film and photographs: There are several scanners on the market that offer both reflective (flat art) and film scanning capabilities, but in various degrees you’ll compromise resolution and optical density (dynamic range) or pay a hefty price for a drum/type flat-bed scanner.
		Film scanners need to scan at a much higher resolution than flat-bed scanners because the area being scanned is much smaller and will almost certainly need to be enlarged dramatically.
		Film scanners capable of quality reproduction were simply not available at a price that most people wanted to spend.
	www.edigitalphoto.com /scanners/0109edp_film (2450 words)

	The PC Technology Guide
		high-end drum scanners, capable of scanning both reflective art and transparencies, from 35mm slides to 16-foot x 20in material at high (10,000dpi+) resolutions
		At its most basic level, a scanner is just another input device, much like a keyboard or mouse, except that it takes its input in graphical form.
		The powerful PCs required to manipulate digital images are now considered entry level, so it comes as no surprise to learn that scanners, the devices used to get images into a PC, are one of the fastest growing markets today.
	www.pctechguide.com /18scanners.htm (252 words)

	Flatbed Scanners - Professional Prepress Equipment for Graphic Arts Industry - ColourPeople - UK
		As well as our range of Drum Scanners, ColourPeople also offer the complete range of Esko-Graphics ScanMate flatbed scanners.
		The ScanMate flatbed scanners are a unique range of A3 and A3+ flatbed CCD colour and multi purpose scanners for companies within the graphic arts industry.
		With this series of flatbed scanners comes high resolution of up to 5400dpi, high speed scanning, automated batch processing, built-in 5000°K light table, no glass option = dust free and external mounting tables.
	www.colourpeople.co.uk /flatbed-scanners.htm (252 words)

	Reviews of film scanners for 35mm slides and 4 x 5 inch transparencies
		The professional way to scan a 35mm slide is on a drum scanner, but for those who do not wish to spend $38,000 to $80,000 or more for a drum scanner, we recommend a high-end flatbed scanner that allows you to focus.
		35mm color negatives are a serious problem for most scanners.
		The Leaf 4x5 film scanner is (was) exceptionally well made and its software was far advanced for its era (mid- 1990's).
	www.flatbed-scanner-review.org /35mm_slide_film_scanners/35mm_film_slide_scanners.html (252 words)

	Reviews of film scanners for 35mm slides and 4 x 5 inch transparencies
		The professional way to scan a 35mm slide is on a drum scanner, but for those who do not wish to spend $38,000 to $80,000 or more for a drum scanner, we recommend a high-end flatbed scanner that allows you to focus.
		35mm color negatives are a serious problem for most scanners.
		Polaroid 35mm scanners: I liked the first 35mm Polaroid scanner I used but a friend got one and was dissatisfied.
	www.flatbed-scanner-review.org /35mm_slide_film_scanners/35mm_film_slide_scanners.html (1722 words)

	Film
		Directory of links for flatbed scanners, 35mm film scanners, wide format sheet fed scanners, and drum scanners.
		8mm Film Scanner Disclaimer This is one way to do it I make no claim that anyof this would work for anyone else but I ll answer any questions I can ToddCampbell Parts Epson 3200 Flatbed scanner Lego...
		Minolta DiMAGE Scan Elite 5400 Wins Best Film Scanner TIPA Award in Europe Minolta Film Scanner Receives Top 2003 2004 Honors Ramsey NJ July 23 2003 Minolta Corporation announces that the new Minolta...
	www.film12.com /2004-festival-film-international-toronto (1949 words)

	Digital Darkroom Forum: Noritsu S2 results
		The Noritsu slit scanner is not meant to compete in a absolute resolution to a drum scanner or even non-commercial prosumer scanners.
		The Noritsu slit scanner is amazing in the quality of scan it produces in a short amount of time- a necessity in a commercial lab.
		I use the scanner of Noritsu Minilab, and the scanner is Noritsu S2.
	www.photo.net /bboard/q-and-a-fetch-msg?msg_id=00BXSQ&unified_p=1 (505 words)

	ICG 380 Drum Scanners ICG
		The A3 external drum of the ICG® 380 drum scanner is designed for scanning all of the traditional media, including transparency, reflection, linework and colour negatives.
		The highly acclaimed and patented SlickMount system is also available as an option with the 380 drum scanner.
		The Copydot option comprises a precision film punch and a special external scanner drum fitted with registration pins.
	www.icg.ltd.uk /products/icg-380-advantages.htm (505 words)

	Helpful comparative reviews on 35mm slide scanners, prepress flatbed scanners, drum scanners and wide format scanners.
		With Agfa, Heidelberg, and Fuji having abandoned the high-end pre-press scanner market over the last two years, Creo is one of the few companies that we know of that has an international presence, is continually updating its software, and has new scanner models appearing on a regular basis.
		If you are a museum, library, archive, photo lab, photographer, artist, or individual with good taste in scanners, you can also learn more about scanners for fine art photography, giclee, and other photographic needs by contacting imaging@parrotcolor.com.
		Three new Creo iQsmart flatbed scanners arriving in the FLAAR testing labs at BGSU for evaluation.
	www.flatbed-scanner-review.org (505 words)

	Black Fax - Compare Prices, Reviews and Buy at NexTag - Price - Review
		related searches:fax,black,fax machine,laser fax,fax switch,fax drum,fax ribbon,hp fax,fax 2820,canon fax,fax ink,panasonic fax,fax answering,samsung fax,all-in-one fax,ricoh fax,kleer fax,scanner printer copier fax,fax laser printer scanner,all in one printer fax
		Mita Model 79382010 Black Fax Drum Imaging Unit
		Konica Minolta Model 930822 Black Fax Toner Set
	www.nextag.com /black-fax/search-html (139 words)

	Seybold Report on Publishing Systems, Vol 24 No 12
		Creo will not be bringing any of the larger Platesetters to Drupa, because of their size, and has not yet determined if it will bring its drum scanner.
		The 3244 Platesetter features an external-drum design that exposes aluminum plates as large as 32"×44" (812mm×1,118mm) with a maximum imaging area on the plate of 31"×44".
		Consisting of the scanner and a workstation console, it is being developed with substantial funding from R.R. Donnelley, as was the case with the Platesetter.
	www.seyboldreports.com /SRPS/free/0ps24/P2412003.HTM (139 words)

	To get the best quality large format print it helps to start with a large format camera.
		Yes, you can do wonders creating a large format poster with a 35mm slide if you have a Scitex EverSmart scanner or a drum scanner (Fuji, ICG or Optronics for example) and an Encad, Roland, or Colorspan large format color printer.
		With a medium format image (120 or 220 size film, 6x6 to 6x9, or, with roll film holder on a 4x5 camera, 6x12 cm) no good entry level scanner will do a professional quality job, since 600x1000 dpi will not do much to enlarge a 2 1/4 inch transparency to large format.
		Over the last two years of testing large format printers and large format cameras we found that L-shaped cameras sagged from the considerable weight of the digital insert combined with the drag of the SCSI cables.
	www.wide-format-printers.org /Sinar_large_format_cameras/Sinar_4x5_large_format.html (1549 words)

	Optical Density
		High end drum scanners (typically limited to commercial ownership and use due to their high cost) have an Optical Density upwards of 3.8 to 4.0 which represents about 95% to 100% of the original source's tonal range.
		Optical density, also known as Dynamic Range, is the scanner's ability to "see" all tones available.
		In summary, Optical Density represents how much of the original's (scanned source) total tonal information is represented by the scanner.
	members.aol.com /modernimaging/mi/optical_density.htm (251 words)

	BYTE.com
		However, scans that require significant color correction could be processed at the higher bit depth and sampled down to 8 bits after all corrections have been made, resulting in a final histogram that looks like the drum-scanner or ScanMaker curve shown.
		The new scanner promises to be better all around, providing increased scanning speed and better image quality, with a 3.0 dynamic range and 12-bit sampling per color.
		Each of these scanners uses a 600-element-per-inch CCD assembly to give true 600-sample-per-inch capability along the width of the scan, and each has a stepper motor capable of 1200 samples per inch along the length of the scan.
	www.byte.com /art/9408/sec9/art2.htm (3938 words)

	Flextight 848
		The Flextight 848 builds on the foundation of the award winning »virtual drum« principle.
		We are ready to meet any high resolution, high density scanner.
		The speed and quality of this scanner exceeds any other product on the market place today.
	www.imacon.dk /sw172.asp (3938 words)

	RADIO FACSIMILE May Print "
		A page of printed or pasted-up text and pictures is wrapped around the drum of a “scanner.” As the drum revolves, a photocell “scans” the page line by line (105 lines to the inch), changing the graphic material into a fluctuating current.
		The fidelity with which both pictures and type are reproduced at the receiving end is amazing.
		The facsimile system used by WQXR-FM devised by John V. Hogan, president of WQXR and WQXR-FM, head of Radio Inventions, Inc., and Faximile, Inc.
	ourworld.compuserve.com /homepages/ggninfo/70.htm (333 words)

	film scanning
		Before I bought the Nikon, I had some 6cm x 6cm Rolleiflex TLR negatives scanned at 4000 dpi on a professional drum scanner at a pro lab for $36 each and made some excellent prints from them.
		My only film scanning experience has been with Nikon scanners, but I know of people who use the Minolta DImage scanner for their 35mm work and seem to be happy with it.
		The two scans look the same when blown up full size on the monitor, and when I made 14 x 17 prints from both scans I couldn't tell which one was which, even under a magnifying glass.
	www.robertpence.com /filmscan.html (333 words)

	Raster scanner including scanning beam tilt correction - Patent 5043744
		The beam tilt signal is also used to adjust the start of scan signal to account for the conicalness in the drum causing the image to drift across the page.
		These signals are used to align the beam to the drum by providing a beam position control signal and a beam tilt signal.
		The velocity of the imaging member is controlled relative to the beam, and the tilt of the beam is adjusted relative to the imaging member.
	www.freepatentsonline.com /5043744.html (4708 words)

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In the News (Wed 30 Dec 09)