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+# scanners
+
+to scan my hand-written journal, i need a fast duplex scanner
+
+my journal has thousands of pages, so a flatbed scanner wont help, and i need a machine for "high-volume scanning"
+
+https://geizhals.de/?cat=scn&xf=15969_DADF~2883_A4~777_LAN~779_25~780_50&asuch=&bpmin=&bpmax=500&v=e&hloc=at&hloc=de&plz=&dist=&mail=&sort=eintr&bl1_id=30
+
+https://geizhals.de/?cmp=2752788&cmp=2437045&cmp=2336528&cmp=2336536&cmp=2977524&cmp=2869946&cmp=2860888&active=1
+
+## currently i have
+
+- Canon Lide 100
+   - https://geizhals.de/canon-canoscan-lide-100-2923b010-a360897.html
+   - flatbed scanner
+   - useless for scanning hundreds of pages
+   - may be useful for scanning "special pages": broken pages, dirty pages, stapled pages, ...
+- Brother DCP-L2550DN
+   - https://geizhals.de/brother-dcp-l2550dn-dcpl2550dng1-a1740474.html
+   - multi function printer with a simplex ADF + flatbed scanner
+   - better than a flatbed scanner, but without DADF, its too much work to manually reconstruct front and back sides of all pages
+   - its an acceptable low-budget multi function printer (MFP), but a bad choice for high-volume scanning
+- Brother ADS-3000N
+   - https://geizhals.de/brother-imagecenter-ads-3000n-ads3000nux1-a1375507.html
+   - single pass duplex DADF scanner
+   - awesome : )
+
+## scanner models
+
+### Brother ADS-4300N
+
+https://www.brother.eu/-/media/product-downloads/devices/scanners/ads/ads4300n/de/ads-4300n-datasheet.pdf
+
+https://geizhals.de/brother-ads-4300n-ads4300nre1-a2752788.html
+
+- new price: 360 eur
+- speed: 40 ppm (at 300 dpi?)
+- input tray: 80 sheets
+- con: expensive
+- new model, no used offers on ebay
+- DADF = Dual CIS = single pass duplex scanner
+- max resolution: 1200 dpi
+- duplex speed: 80 ipm
+- power draw: 25 watt
+- weight: 3 kg
+- connectivity: 1x USB 3.0, 1x USB-A 2.0 (Host), 1x LAN
+   - Scan-to-FTP/SFTP
+- max resolution: 600 dpi, 1200 dpi (interpolated)
+- duty cycle: max 120.000 sheets per month
+- duty cycle: max 6.000 sheets per day
+- noise: max 59 dB
+
+### Brother ADS-3000N
+
+https://geizhals.de/brother-imagecenter-ads-3000n-ads3000nux1-a1375507.html
+
+https://www.brother.eu/-/media/product-downloads/devices/scanners/ads/ads2400n/de/17042018_ads_2400n_3000n_datenblatt.pdf
+
+https://www.ebay.de/itm/394910089090
+
+- used price: 180 eur
+- speed: 50 ppm at 300 dpi
+- input tray: 50 sheets
+- older model, can be found used on ebay
+- DADF = Dual CIS = single pass duplex scanner
+- memory: 256 MB
+- max resolution: 600 dpi, 1200 dpi (interpolated)
+- connectivity: 1x USB 3.0, 1x USB-A 2.0 (Host), 1x GbLAN
+   - Scan-to-FTP/SFTP
+
+### Brother ADS-2400N
+
+https://geizhals.de/brother-imagecenter-ads-2400n-ads2400nun1-a1387309.html
+
+https://www.brother.eu/-/media/product-downloads/devices/scanners/ads/ads2400n/de/17042018_ads_2400n_3000n_datenblatt.pdf
+
+https://www.ebay.de/itm/394898725956
+
+https://www.ebay.de/itm/185766831343
+
+- used price: ?
+- speed: 40 ppm at 300 dpi
+- input tray: 50 sheets
+- older model, can be found used on ebay
+- DADF = Dual CIS = single pass duplex scanner
+- memory: 256 MB
+- max resolution: 600 dpi, 1200 dpi (interpolated)
+- connectivity: 1x USB 2.0, 1x USB-A 2.0 (Host), 1x LAN
+   - Scan-to-FTP/SFTP
+
+### Epson WorkForce DS-730N
+
+https://geizhals.de/epson-workforce-ds-730n-b11b259401-a2437045.html
+
+- TODO is this a "single pass duplex scanner"?
+- new price: 380 eur
+- used price: ?
+- speed: 45 ppm (at 300 dpi?)
+- input tray: 100 sheets
+- DADF = Dual CIS = single pass duplex scanner
+- max resolution: 600 dpi
+- connectivity: 1x USB 2.0, 1x GbLAN
+- power draw: 15 watt
+- weight: 4 kg
+
+### Ricoh fi-8040
+
+https://geizhals.de/ricoh-fi-8040-pa03836-b001-a2977524.html
+
+- TODO is this a "single pass duplex scanner"?
+- new price: 420 eur
+- used price: ?
+- speed: 40 ppm (at 300 dpi?)
+- input tray: 50 sheets
+- max resolution: 600 dpi
+- connectivity: 1x USB 3.0, 1x GbLAN
+- weight: 3 kg
+- memory: 1 GB
+
+### Fujitsu ScanSnap SP-1125N
+
+https://geizhals.de/fujitsu-scansnap-sp-1125n-pa03811-b011-a2336528.html
+
+- TODO is this a "single pass duplex scanner"?
+- new price: 280 eur
+- speed: 25 ppm (at 300 dpi?)
+- con: slow
+
+### Fujitsu ScanSnap SP-1130N
+
+https://geizhals.de/fujitsu-scansnap-sp-1130n-pa03811-b021-a2336536.html
+
+- TODO is this a "single pass duplex scanner"?
+- new price: 300 eur
+- speed: 30 ppm (at 300 dpi?)
+- con: slow
+
+### Fujitsu Fi-6110
+
+https://geizhals.de/fujitsu-fi-6110-pa03607-b001-a616658.html
+
+https://www.ebay.de/itm/394896536746 # 150 eur
+
+- TODO is this a "single pass duplex scanner"?
+- speed: 40 ppm (at 300 dpi?)
+- input tray: 50 sheets
+- connectivity: 1x USB 2.0
+- max resolution: 600 dpi
+- con: no network
+
+### Kodak i2400
+
+https://geizhals.de/kodak-i2400-8861437-a651575.html
+
+https://www.ebay.de/itm/394906681044 # 150 eur
+
+- TODO is this a "single pass duplex scanner"?
+- connectivity: 1x USB 2.0
+- max resolution: 600 dpi
+
+### Kodak i2420
+
+https://geizhals.de/kodak-i2420-1120435-a1289890.html
+
+https://www.ebay.de/itm/394908999435 # 150 eur
+
+- TODO is this a "single pass duplex scanner"?
+- speed: 40 ppm (at 300 dpi?)
+- input tray: 75 sheets
+- connectivity: 1x USB 3.0
+- max resolution: 600 dpi
+- con: no network
+
+### Fujitsu fi-6130
+
+https://geizhals.de/fujitsu-fi-6130-pa03540-b051-a335150.html
+
+https://www.ebay.de/itm/394908258068 # 150 eur
+
+- TODO is this a "single pass duplex scanner"?
+- speed: 40 ppm (at 300 dpi?)
+- input tray: 50 sheets
+- connectivity: 1x USB 2.0
+- max resolution: 600 dpi
+- con: no network
+
+### Epson GT-S55
+
+https://geizhals.de/epson-gt-s55-b11b202301-a686536.html
+
+https://www.ebay.de/itm/394907610139
+
+- TODO is this a "single pass duplex scanner"?
+- speed: 25 ppm (at 300 dpi?)
+- input tray: 75 sheets
+- connectivity: 1x USB 2.0
+- max resolution: 600 dpi
+- con: no network