2010/4/15 Erik Lotspeich <erik at lotspeich.org>: > Hi Allan, > > Thanks for your response -- directing me to the sane source was a big > help. ?I was worried I'd have to get into the USB driver. > > I poked around in the source for a bit and discovered an environment > variable SANE_HP_RDREDO. ?I set this to 200 and that allowed sane to > wait much longer -- I can get scans now with the XPA.
cool. > When I used to use scanner with XPA with SCSI, it might take 1 minute > for the lamp to warm up before the first scan and a much shorter time > after that. ?Now I'm waiting nearly 5 minutes... but that's not a > problem with sane, I'm sure. ?Maybe my 9-year old machine is showing > signs of age. > > OT: When I bought this scanner, I thought that it would be a nice > mid-range model. ?When scanning slides, it's obvious it has a limited > color/contrast range; I see banding and digital noise as well. ?For > negatives, it's worthless. It was a nice mid-range scanner, 10 years ago :) allan > > Regards, > > Erik > > m. allan noah wrote: >> The HP 6x00 scanjets use ancient usb 1.0 (not even 1.1) IIRC. I had >> lots of problems with this scanner on USB on every machine I tried. >> Eventually I gave up and scrapped it. If you want to try and fix it, I >> would get the source of sane-backends 1.0.20, and see if you can add >> any calls to sanei_usb_set_timeout to the hp backend. >> >> allan >> >> On Wed, Apr 14, 2010 at 9:59 AM, Erik Lotspeich <erik at lotspeich.org> >> wrote: >>> Hi, >>> >>> I have an HP ScanJet 6300c that I've been using successfully with sane >>> for some time now. >>> >>> I have a problem when I use the XPA. ?With the XPA, the scanner takes a >>> LONG time (it waits for the XPA lamp to warm up) to handle scan >>> requests. ?The problem is that sane timeouts with an I/O error before >>> the scanner is ready. ?When the scanner is ready (you can hear it >>> attempt to start the scan), sane is no longer listening. >>> >>> This scanner has both SCSI & USB interfaces. ?I've used this scanner >>> with XPA & sane many years ago with the SCSI interface -- it worked with >>> SCSI. ?I'm using the USB interface now. >>> >>> I did some searching on the Internet and I didn't see any definite >>> answer. ?I don't know if this is a sane issue or a USB one. ?dmesg and >>> /var/log/messages yield no error messages or warnings. >>> >>> I use OpenSUSE 11.1 with the following packages: >>> >>> # rpm -qa |grep sane >>> sane-frontends-1.0.14-302.35 >>> xsane-0.995-131.35 >>> sane-backends-autoconfig-1.0.19-99.1 >>> sane-backends-1.0.19-99.1 >>> >>> Any help would be greatly appreciated. >>> >>> Regards, >>> >>> Erik >>> >>> -- >>> sane-devel mailing list: sane-devel at lists.alioth.debian.org >>> http://lists.alioth.debian.org/mailman/listinfo/sane-devel >>> Unsubscribe: Send mail with subject "unsubscribe your_password" >>> ? ? ? ? ? ? to sane-devel-request at lists.alioth.debian.org >>> >> >> >> > -- "The truth is an offense, but not a sin"
