Re: [sane-devel] Canon Lide 220 not working over 1200dpi

2019-10-07 Thread Ralph Little
Hi On Mon, Oct 7, 2019, 13:11 Jeroen Van den Keybus, < jeroen.vandenkey...@gmail.com> wrote: > I have had contact with both Genesys Logic and Canon. It is not possible > to get the GL124 data sheet. > > Guessing from the data code, this chip is 13+ years old so I'm quite > surprised to see this

Re: [sane-devel] Sending confirmation about the pixma backend

2019-10-07 Thread Jeroen Van den Keybus
Rogerio, I use a HP C309a and X576dw (fast scanning) daily and reliably with their hplip drivers and gscan2pdf. No issues. I needed the Canon LiDE220 as a scan-only device (work on desk) and HP's ScanJets are a bit expensive. I would expect the drivers to be working well on that device too.

Re: [sane-devel] Canon ImageClass MF644Cdw

2019-10-07 Thread ken
On 10/5/19 11:13 AM, Kip Shaffer wrote: > I just updated from Rolf's PPA, and I am very happy to say that I can > now detect and scan from my Canon ImageClass MF644Cdw over the > network.  I confirmed it can scan in resolutions of 75, 150, 300, 600, > 1200, and 2400 for both Text and Color modes. 

Re: [sane-devel] Sending confirmation about the pixma backend

2019-10-07 Thread Rolf Bensch
Hi Rogério, I can see an error response in your log file. To fix this I need an USB snoop file from Canon's ScanGear Software. You can use wireshark for snooping (to enable USB support read this: https://wiki.wireshark.org/CaptureSetup/USB). Many thanks for your help. Cheers, Rolf Am

Re: [sane-devel] Scanner stocks

2019-10-07 Thread Ralph Little
Hi, On Mon, Oct 7, 2019 at 1:04 PM Jeroen Van den Keybus < jeroen.vandenkey...@gmail.com> wrote: > I think that we are technologically rapidly approaching a point where it > is no longer viable to reverse engineer an OEM product. IMO it is far more > important to have a good and stable framework

Re: [sane-devel] Scanner stocks

2019-10-07 Thread Gerhard Jäger
Hi Ralph, On 05.10.19 at 09:54 Ralph Little wrote: Hi devs, Yesterday I won a canon lide 30 for 50p on eBay. I thought it would be fun to play with, but it occurred to me that I don't know if, as a project, if we have many scanner examples for testing and verifying regressions. Its a bit

Re: [sane-devel] Canon Lide 220 not working over 1200dpi

2019-10-07 Thread Jeroen Van den Keybus
I have had contact with both Genesys Logic and Canon. It is not possible to get the GL124 data sheet. Guessing from the data code, this chip is 13+ years old so I'm quite surprised to see this reluctance to release the data sheet. I will go forward with the workaround (stay below or at 1200 dpi,

Re: [sane-devel] Scanner stocks

2019-10-07 Thread Jeroen Van den Keybus
Hello Ralph, I don't know which chip the LiDE 30 uses, but the LiDE 220 definitely uses a GL124. I think that we are technologically rapidly approaching a point where it is no longer viable to reverse engineer an OEM product. IMO it is far more important to have a good and stable framework so