From 6e9c41a892ed0e0da326e0278b3221ce3f5713b8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 6 Oct 2014 14:00:40 +0200 Subject: Initial import of sane-backends version 1.0.24-1.2 --- doc/umax/umax.FAQ | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 147 insertions(+) create mode 100644 doc/umax/umax.FAQ (limited to 'doc/umax/umax.FAQ') diff --git a/doc/umax/umax.FAQ b/doc/umax/umax.FAQ new file mode 100644 index 0000000..0901a2c --- /dev/null +++ b/doc/umax/umax.FAQ @@ -0,0 +1,147 @@ +------------------------------------------------------------------------------- + +Q: I am using an Astra 2200 Scanner and can do a preview scan but the scanner + hangs or produces bad images when I start a final scan. + +A: Disable the option "quality calibration". This does not reduce the image + quality, the scanner reports it can do a quality calibration but that is + not true for the current firmware version. + +------------------------------------------------------------------------------- + +Q: What scsi controller shall I use for UMAX scsi scanners? + +A: The controller cards that come with UMAX scanners are very simple ones + and I suggest not to use this cards. + + I like the ncr53c8xx (=symbios-loigc53c8xx = lsi53c8xx) controllers because + they are not too expensive and I had very good results with these cards. + Especially the ncr53c810 is very interesting for scanning because this + are fast scsi controllers which allow long scsi cables. + + The Adaptec 2904 controllers seem to make problems with UMAX scanners on + linux. + +------------------------------------------------------------------------------- + +Q: I want to use the scsi-card that comes with my umax scanner. + What card is it and is it supported by my os? + +A: There are at least two kind of scsi controller cards that + come with UMAX scanners. + + ISA-Card: + The ISA-cards that come with the umax scanners are very simple cards. + I suggest not to use these cards. + + If you really want to try: + the UDS-IS11 ISA-card is a DTC3181E-card based on the NCR5380-chip. + On linux you may have the chance to get it work with the recent + g_NCR5380-driver. The card does not have IRQ/DMA. + + Try the following option for kernel: dtc3181e=0x280,255 + or use the following command: + + insmod g_NCR5380 ncr_irq=255 ncr_addr=0x280 dtc3181e=1 + + - ncr_irq=255 : no IRQ, no DMA + - ncr_irq=254 : autoprobe IRQ + - ncr_addr : can be: 0x220 0x240 0x280 0x2A0 0x2C0 0x300 0x320 0x340 + + (Thanks to Colin Brough and Hans Schaefer for that tip) + + + PCI-Card: + Some UMAX Scanners come with a PCI SCSI controller card DOMEX DMX3191E. + This card shall be compatible to the Advansys ABP940U (Chip: Advansys + ASC3030). The card shall work without problems with the Advansys SCSI + driver for linux. + + (Thanks to Volker Ossenkopf for that tip) + +------------------------------------------------------------------------------- + +Q: I use linux with a NCR/Symbios logic SCSI-Controller, sane does not work + right. + +A: There are two differen drivers in the linux Kernel/modules. + Use the BSD-driver ncr53c8xx or sym53c8xx. + +------------------------------------------------------------------------------- + +Q: I am using an AM53C974 based scsi card with a umax scanner, the system + freezes when I start a scan, what can I do? + +A: Try the recent driver for the scsi card, take a look at: + http://www.garloff.de/kurt/linux/dc390/index.html + +------------------------------------------------------------------------------- + +Q: Will there be a support for the UMAX-parallel-port-scanners? + +A: Since sane-1.0.5 there is a separate sane-umax-pp backend that does + support (some) umax parallel port scanners. + +------------------------------------------------------------------------------- + +Q: Will there be a support for the UMAX-USB-scanners? + +A: UMAX published their SCSI-protocol for scanners. However they have not so far + published USB protocols. This seems to be because they are using an ASIC that + is produced by someone else and they had to subscribe an NDA. + Without the protocol documentation it really is hard to write a driver. + I will not work on a driver. + + The Astra 2200W does work when connected via SCSI. + It could work with SCSI-via-USB-driver and connected via USB, but that + is not tested. + +------------------------------------------------------------------------------- + +Q: I get a black area at the top of the image. What's wrong? + +A: This is a problem of some scsi-drivers. + Update the driver for your scsi-adapter or update the operating system/kernel. + + For advansys-scsi-cards update to a new kernel which includes at least + the driver version 3.1E of the advansys-scsi-driver. Take a look at: + http://www.advansys.com/linux.htm + +------------------------------------------------------------------------------- + +Q: Does SANE and the umax backend work on LinuxPPC / big endian machine ? + +A: There are people using the sane-umax on a LinuxPPC (big endian) machine. + + Other people write that they can not scan on a LinuxPPC. It looks like this + is a problem with the driver of the scsi card. + + The "MESH" SCSI card is reported to work. The NCR53C94 SCSI card + seems not to work. + +------------------------------------------------------------------------------- + +Q: SANE hangs or crashes when I start a frontend for sane, what can I do? + +A: Sometimes the backends that are not used make problems. + Edit /usr/(local)/etc/sane.d/dll.conf + and comment out everything but the backend you need. + +------------------------------------------------------------------------------- + +Q: compiling sane aborts with error "virtual memory exhausted" + on slackware linux with gcc. What goes wrong? + +A: The optimization set by "-O2" makes problems, try which one of the following + calls work: + + make CFLAGS="-g -Wall -O1" + make CFLAGS="-g -Wall -O" + make CFLAGS="-g -Wall" + +------------------------------------------------------------------------------- + +You find a lot of tips and informations in the internet. E.g. take a look +at http://www.scantips.com + + -- cgit v1.2.3