-------- Original Message -------- Subject: RE: [Fwd: Large size Scanners] Date: Thu, 13 Feb 2003 13:34:33 -0700 From: "Ryan Morgan, Aerials Express" <[log in to unmask]> To: "Maps and Air Photo Systems Forum" <[log in to unmask]> ------------------ Here is a post from the MapInfo-L listserve on the same topic. It was posted earlier this week, perhaps it can help you. Pay special attention to this person's advice on warranties... Buying a large format scanner is similar to buying a small format scanner with a few variations. There are two general types, flat beds (up to 54 inches on a side) and roll types. In the flat beds, the scanner head moves over the paper that is fixed on a platten. In the roll type, the paper is fed beneath a fixed scanner head. Some large flat beds are still made, but in the past 10 to 15 years, the roll type taken over the market. (they have a smaller foot print, are lighter, advances in mechanical precision of the internal mechanics now allows them to produce superior scans,they can scan any length of paper,and they can scan mylar and clear film) the primary cost difference depends on whether you need grey scale only or do you need color. Never get a pure black and white only scanner (any dust on the original will show up as black dots). The second cost factor is the width of the scanner (24, 36, 48, 54 inches wide). The third is scanning speed. Generally, you do not need more than 600 dpi for a large format scanner. (400 to 600 dpi is fine unless you are doing huge blow-ups). If you are doing lots of scanning, you will also need a dedicated computer and an operator. there are two costs you need to be concerned with. The inital cost of the unit ($10,000 to 90,000 US) and the annual maintenance fee (up to $5000 US per year). If you do not get a maintenance contract, be prepared to pay for a technician to come to your office (that includes: plane fare, hotel, generally 12 hours minimum fee at up to 250 per hour, plus parts [this is where they really get you- the main light bulb can cost $900 or more]}. good quality makers of scanners include Vidar and OCE. There are several others- you just have to look around. High end makers include Anatec (you can spend 100,000 or more for their scanners). The main difference in cost is width and scanning speed. Ocassionally, used large format scanners show up on e-bay. Becareful of them. There has been s a huge advance is scan camera technology in the past ten years. Equipment that is 10-12 years old is almost cost prohibitive to keep running (many parts are no longer available.). Things to look out for in a used scanner - how old is the main light bulb (they have to be replaced every couple of years - assume $1000 cost). Does the scanner have the software? (most manufactures have their own software - can cost $1000 to 4000 to purchase it). what is the condition of the feed rollers? If a scanner can scan transparencies (ie: mylar), it has a white roller. Over time, that roller can become discolored (replacement can cost $1000 to 2000). What is the condition of the cameras? In the older units, the cameras (up to 8 of them) had to be replaced every 4 to 6 years ($1500 each plus aligment by a technician). The mechanical drive units are fairly robust and little goes wrong with them {except during shipping}. Most companies will send out a technician to set up a used machine at your office for a 1000 to 1500 fee (that is generally included with a new machine, but check first). I looked into this several years ago. I eventually made a deal with my local Kinko's. I send them a minimum amount of business and they charge me a flat fee for any sized scan. -----Original Message----- From: Maps and Air Photo Systems Forum [mailto:[log in to unmask]]On Behalf Of Johnnie D. Sutherland Sent: Thursday, February 13, 2003 1:01 PM To: [log in to unmask] Subject: [Fwd: Large size Scanners] -------- Original Message -------- Subject: Large size Scanners Date: Thu, 13 Feb 2003 09:35:08 -0500 From: [log in to unmask] To: Maps List <[log in to unmask]> ------------------ Greetings Mappers; I believe this came up awhile back, but I need to provide new information so thought I'd ask. We are being offerred the potential to obtain a large size scanner for maps, photos, and other large documents. Does anyone have suggestions, experience, or any makes of equipment that you know of or have used? Thank you. David J. Bertuca, Associate Librarian Arts and Sciences Libraries University at Buffalo Libraries [log in to unmask]