[sane-devel] Re: Need recomendation linux/sane compat scanner w/fast 2bit/greyscale ADF
m. allan noah wrote: > i only know fujitsu models, so i am sure there are others, but the > fi-4120C2 is pretty fast, and the sane support is ok for binary and > grayscale. Thanks for the reply. The fujitsu models were my leading candidates. Thanks for your work on the SANE support for these. The fi-4120c2 is particularly attractive due to the USB 2.0 interface. I'll be using this unit with my laptop from time to time, and prefer to connect it to both the server and laptop with USB 2.0 Question: Does the fi-4120c2 take advantage of its 600dpi optical resolution to scan 300dpi (and perhaps even 600dpi) at the full 25ppm speed? The data sheets only list comparison specs of 150dpi and 200dpi at 25ppm, there's no mention of the higher resolutions' effective speed. > the usb issues seem more linux kernel dependent than sane. 2.4 with > libusb has worked better than the early 2.6 kernels, but the recent > 2.6.10+ seems to be fine (finally, some 'stable' series this is :) I currently run Gentoo Linux with a kernel of 2.6.11, libusb-0.1.10a, udev-056 and HAL. So I should be alright to use the USB greyscale/1bit ADF combination? Thanks.
[sane-devel] Re: Need recomendation linux/sane compat scanner w/fast 2bit/greyscale ADF
Before I settle on the Fujitsu fi-4120C2, would the author of the AV220 support (René Rebe) care to weigh in on how well the Kodak i60 and i80 have been working with his avision SANE driver? (Or anyone that has used the i60 or i80 with SANE, for that matter) - 1bit and grayscale - 300dpi - USB 2.0 interface - ADF
[sane-devel] Re: Need recomendation linux/sane compat scanner w/fast 2bit/greyscale ADF
the scanner speed on the 4120C was limited by the speed of the bus. to be honest, i only go up to 200dpi, so i have not tested the speed of the 4120C2 at higher resolutions. i really dont have time this week. i will add it to my long list of things to do, perhaps early next week? allan On Wed, 20 Apr 2005, Jeff Kowalczyk wrote: > m. allan noah wrote: >> i only know fujitsu models, so i am sure there are others, but the >> fi-4120C2 is pretty fast, and the sane support is ok for binary and >> grayscale. > > Thanks for the reply. The fujitsu models were my leading candidates. > Thanks for your work on the SANE support for these. > > The fi-4120c2 is particularly attractive due to the USB 2.0 interface. > I'll be using this unit with my laptop from time to time, and prefer to > connect it to both the server and laptop with USB 2.0 > > Question: Does the fi-4120c2 take advantage of its 600dpi optical > resolution to scan 300dpi (and perhaps even 600dpi) at the full 25ppm > speed? The data sheets only list comparison specs of 150dpi and 200dpi at > 25ppm, there's no mention of the higher resolutions' effective speed. > >> the usb issues seem more linux kernel dependent than sane. 2.4 with >> libusb has worked better than the early 2.6 kernels, but the recent >> 2.6.10+ seems to be fine (finally, some 'stable' series this is :) > > I currently run Gentoo Linux with a kernel of 2.6.11, libusb-0.1.10a, > udev-056 and HAL. So I should be alright to use the USB greyscale/1bit ADF > combination? > > Thanks. > > > -- "so don't tell us it can't be done, putting down what you don't know. money isn't our god, integrity will free our souls" - Max Cavalera
[sane-devel] Re: Need recomendation linux/sane compat scanner w/fast 2bit/greyscale ADF
m. allan noah wrote: > the scanner speed on the 4120C was limited by the speed of the bus. to > be honest, i only go up to 200dpi, so i have not tested the speed of the > 4120C2 at higher resolutions. I just checked with Fujitsu's online support (should have done that first), and they stated that the FI-4120C2 achieves the following rates over SCSI and USB 2.0: 150dpi: 25 ppm 200dpi: 25 ppm 300dpi: 15 ppm 600dpi: 3 ppm quite a notable slowdown, but I think anything in this price range will be similarly affected. It may just be a physical limit of the optical technology, where high resolutions can't be satisfactorily resolved if the paper is moving too quickly through the ADF. Thanks.
