[sane-devel] HP ScanJet 2400c
Le Lundi 14 Novembre 2005 21:54, carlos a ?crit?: Hi Stef, I know how to program in C, but I know nothing about how a scanner works, in any case, I have an hp2400c which has been doing a great job as a brick, if you would be so kind so as to send me those scripts I may give it a try to write a backend for that scanner. thanks, carlos. Hello, here they are. Don't hesitate to ask further questions on the list. Regards, Stef -- next part -- A non-text attachment was scrubbed... Name: scripts.tar.bz2 Type: application/x-tbz Size: 8219 bytes Desc: not available Url : http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20051117/804ea5a8/scripts.tar.bin From lno...@dragon.unideb.hu Thu Nov 17 08:17:34 2005 From: lno...@dragon.unideb.hu (Levente =?ISO-8859-1?Q?Nov=E1k?=) Date: Thu Nov 17 08:33:08 2005 Subject: [sane-devel] Re: Re: Re: epson 3490 - transparency unit problem In-Reply-To: 200511162349.28532.oliver.schwa...@gmx.de References: 4376277f.3090...@free.fr 200511152113.01824.oliver.schwa...@gmx.de 437b7dfb.20...@free.fr 200511162349.28532.oliver.schwa...@gmx.de Message-ID: 1132215454.12161.7.ca...@novak.chem.klte.hu On Wed, 2005-11-16 at 23:49 +0100, Oliver Schwartz wrote: I can somehow understand that it happens at 2400 dpi. In fact I think that 2400 dpi won't ever work and should be disabled, or replaced by 1800 dpi, which should be ok. Please wait until I test it out. And I suppose you meant 1600 dpi (which is a multiple of 800) instead of 1800 dpi (and Patrick wanted to say 3200 dpi instead of 3600). AFAIK our scanner's maximum resolution is 3200 dpi. If I'm right, the PF 3490 has a 800 dpi of linear CCD resolution, higher ones are 'faked' by offsetted sensor elements. In this case multiples of 800 should work. I'm a bit surprised about the effect at 3600 dpi. Can you send me an image which shows the effect? I did not have any problems at 3200 dpi. And before the CVS change, the only problem was the now solved interlacing phenomenon. Levente
[sane-devel] Re: Re: Re: epson 3490 - transparency unit problem
On Tue, 2005-11-15 at 21:13 +0100, Oliver Schwartz wrote: I've now adapted the quality calibration code for the 2480 and enabled it for the 3490. It's a pitty that you solved the problem already ;-) otherwise it would be nice to know if quality calibration solves it, too The code is in CVS now, it should show up in the snapshots tomorrow - please test. I've tested the code with TPU and 3200 dpi (where I noticed a slight vertical banding at high contrast enhancements before the code change). It works well, at least I hear the scanner doing the calibration and the resulting image is better than without (banding almost invisible). Ah yes, and 16 bpp colour at 3200 dpi works equally well! Thanks for your efforts! Levente PS: today evening, I'm planning to run some thorough tests. Which resolution/bit depth/size combinations should I try?
[sane-devel] Mail Setup Problem - No Help
I was unable to reply directly Jaun Jose Pablos response as the L instruction for Mutt responded No mailing list found. I have added the mailing list to my .muttrc file and can respond to my own posting with the L instruction so I gather this is because something is missing in his response. This said, his response was no help whatsoever. I had already read the sane-xsane-setup-mail document which only states that I should put my email address in the From field. That is exactly what I had done. The problem I reported was that this didn't work. Tom George
[sane-devel] Genius: ColorPage-Slim 1200 USB2 support
This is what is needed for this scanner to be detected.
It is a copy from the cannon scanner, and I would like to find out which
values should requiered for this to work, please help!
Cheers,
cheche
-- next part --
? cpslim1200.diff
Index: genesys.conf
===
RCS file: /cvsroot/sane/experimental/genesys-new/genesys.conf,v
retrieving revision 1.1
diff -r1.1 genesys.conf
22a23,26
# Genius ColorPage Slim 1200
usb 0x0458 0x2020
Index: genesys_devices.c
===
RCS file: /cvsroot/sane/experimental/genesys-new/genesys_devices.c,v
retrieving revision 1.1
diff -r1.1 genesys_devices.c
324a325,366
static Genesys_Model genius_cpslim_1200_model = {
genius-cpslim-1200, /* Name */
Genius, /* Device vendor string */
ColorPage Slim 1200, /* Device model name */
gl841_cmd_set,
{1200, 600, 300, 150, 75, 0}, /* possible x-resolutions */
{2400, 1200, 600, 300, 150, 75, 0}, /* possible y-resolutions */
{16, 8, 0}, /* possible depths in gray mode */
{16, 8, 0}, /* possible depths in color mode */
SANE_FIX (3.5), /* Start of scan area in mm (x) */
SANE_FIX (7.5), /* Start of scan area in mm (y) */
SANE_FIX (218.0), /* Size of scan area in mm (x) */
SANE_FIX (299.0), /* Size of scan area in mm (y) */
SANE_FIX (0.0), /* Start of white strip in mm (y) */
SANE_FIX (1.0), /* Start of black mark in mm (x) */
SANE_FIX (0.0), /* Start of scan area in TA mode in mm (x) */
SANE_FIX (0.0), /* Start of scan area in TA mode in mm (y) */
SANE_FIX (100.0), /* Size of scan area in TA mode in mm (x) */
SANE_FIX (100.0), /* Size of scan area in TA mode in mm (y) */
SANE_FIX (0.0), /* Start of white strip in TA mode in mm (y) */
0, 0, 0,/* RGB CCD Line-distance correction in pixel */
COLOR_ORDER_BGR,/* Order of the CCD/CIS colors */
SANE_TRUE, /* Is this a CIS scanner? */
CCD_UMAX,
DAC_WOLFSON_UMAX,
GPO_UMAX,
MOTOR_UMAX,
GENESYS_FLAG_UNTESTED, /* Which flags are needed for this
scanner? */
/* untested, values set by hmg */
20,
200
};
636a679
{0x0458, 0x2020, genius_cpslim_1200_model},
From joc...@penguin-breeder.org Thu Nov 17 19:18:25 2005
From: joc...@penguin-breeder.org (Jochen Eisinger)
Date: Thu Nov 17 20:18:15 2005
Subject: [sane-devel] New URL for mailing list search engine
Message-ID: 437cd781.9000...@penguin-breeder.org
Hi,
the new URL for the mailing list search engine is
http://www.sane-project.org/htdig/ (and mirrors). The old server
(http://sane.informatik.uni-freiburg.de/htdig/) will cease to exist
soon, please update your bookmarks.
kind regards
-- jochen
[sane-devel] Re: Re: Re: epson 3490 - transparency unit problem
Levente Nov?k a ?crit : On Tue, 2005-11-15 at 21:13 +0100, Oliver Schwartz wrote: I've now adapted the quality calibration code for the 2480 and enabled it for the 3490. It's a pitty that you solved the problem already ;-) otherwise it would be nice to know if quality calibration solves it, too The code is in CVS now, it should show up in the snapshots tomorrow - please test. I've tested the code with TPU and 3200 dpi (where I noticed a slight vertical banding at high contrast enhancements before the code change). It works well, at least I hear the scanner doing the calibration and the resulting image is better than without (banding almost invisible). Ah yes, and 16 bpp colour at 3200 dpi works equally well! Thanks for your efforts! Levente PS: today evening, I'm planning to run some thorough tests. Which resolution/bit depth/size combinations should I try? I confirm the 3200 dpi works well for me, and there isn't any interlacing problems. I apologise for my previous message which was not enough clear. In fact, it seem's that if I do a 2400 dpi scan which does not work, then the following 3200 dpi scan are bad. But it works again if I restart xscanimage. But for me the 16 bit depth doesn't work. If I try to open the file with gimp, the following message is displayed : PNM : invalid intensity maximum value Patrick.
[sane-devel] Repost: HP Questions
Hello, all, I posted a day or 2 ago, but never heard a response at all, so am wanting to make sure my message made it. Since it seems I may not be able to get my Lexmark to work, perhaps I should bring up the problem I was having that caused me to go get the Lexmark in the first place, and see if someone might see something I missed. I had an HP that was working fine with sane, but it suddenly started having problems a few weeks ago. I'd go to scan, and scanimage would respond with, no sane devices found. When I would unplug the thing from the computer (and sometimes the power), scanimage -L would list it, but then I'd get a read error during device i/o. So I went out and bought a brand new USB cable. Same problem. Reinstalling sane didn't help either. So I figured my HP was dead. Is it dead, or is there something else I should try? Being blind, I need *a* scanner to read my printed material. I'll be satisfied if I can at least get one of the scanners working. I'm not enough of a programmer to write a driver, or I probably would have by now. What can I do to get scanning back? As it is now, I have to hike 2 blocks away every time I want to scan anything. Thanks again, Terrence
[sane-devel] Re: Re: Re: epson 3490 - transparency unit problem
Hi, I confirm the 3200 dpi works well for me, and there isn't any interlacing problems. I apologise for my previous message which was not enough clear. In fact, it seem's that if I do a 2400 dpi scan which does not work, then the following 3200 dpi scan are bad. But it works again if I restart xscanimage. ah, ok. That makes more sense. I guess I'll disable 2400 dpi to make sure the error doesn't occur. But for me the 16 bit depth doesn't work. If I try to open the file with gimp, the following message is displayed : PNM : invalid intensity maximum value That's a gimp problem. AFAIK gimp still can't handle more than 8 bits/color. /Oliver
[sane-devel] Repost: HP Questions
Hello, all, I posted a day or 2 ago, but never heard a response at all, so am wanting to make sure my message made it. Since it seems I may not be able to get my Lexmark to work, perhaps I should bring up the problem I was having that caused me to go get the Lexmark in the first place, and see if someone might see something I missed. I had an HP that was working fine with sane, but it suddenly started having problems a few weeks ago. I'd go to scan, and scanimage would respond with, no sane devices found. When I would unplug the thing from the computer (and sometimes the power), scanimage -L would list it, but then I'd get a read error during device i/o. So I went out and bought a brand new USB cable. Same problem. Reinstalling sane didn't help either. So I figured my HP was dead. Is it dead, or is there something else I should try? Being blind, I need *a* scanner to read my printed material. I'll be satisfied if I can at least get one of the scanners working. I'm not enough of a programmer to write a driver, or I probably would have by now. What can I do to get scanning back? As it is now, I have to hike 2 blocks away every time I want to scan anything. Thanks again, Terrence
