Epson Perfection 1640SU on HP-UX 10.20

From: Michael Piotrowski (mxp@dynalabs.de)
Date: Tue Jun 26 2001 - 04:28:28 PDT

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    Hi,

    I'm trying to use an Epson Perfection 1640SU on an HP-UX 10.20 system
    with sane-backends-1.0.4 and sane_epson_20010522, latest HP-UX SCSI
    cumulative patch. Unfortunately, I don't get very far, and I would be
    grateful for any help.

    find-scanner says:

    find-scanner: found processor "EPSON Perfection1640 1.04" at device /dev/scanner

    However, scanimage --help -d epson:/dev/scanner takes a very long time
    and eventually fails, leaving the scanner in an error state (LED
    blinking red). The behavior is not fully consistent: Sometimes the
    scanner doesn't change to the error state, sometimes I even get the
    listing of device options, and sometimes the scanner is not even
    recognized at all. Here is a typical debug output:

    [...]

    [epson] sane_open(/dev/scanner)
    [epson] SANE Epson Backend v0.2.06 - 2001-05-22
    [epson] attach(/dev/scanner)
    [epson] attach: opening /dev/scanner
    [sanei_debug] Setting debug level of sanei_scsi to 128.
    [epson] send buf, size = 2
    [epson] buf[0] 1b .
    [epson] buf[1] 40 @
    [sanei_scsi] sanei_scsi_cmd: SCSI completed with cdb_status=1024
    [sanei_scsi] sanei_scsi_cmd: SCSI completed with cdb_status=2
    [epson] sense_handler() : sense code = 0xf0
    [epson] receive buf, expected = 1, got = 0
    [epson] attach: sending INQUIRY
    [epson] >EPSON Perfection1640 1.04<
    [epson] send buf, size = 2
    [epson] buf[0] 1b .
    [epson] buf[1] 40 @
    [sanei_scsi] sanei_scsi_cmd: SCSI completed with cdb_status=1024
    [sanei_scsi] sanei_scsi_cmd: SCSI completed with cdb_status=2
    [epson] sense_handler() : sense code = 0xf0
    [epson] receive buf, expected = 1, got = 0
    [epson] get_identity_information()
    [epson] send buf, size = 2
    [epson] buf[0] 1b .
    [epson] buf[1] 49 I
    [sanei_scsi] sanei_scsi_cmd: SCSI completed with cdb_status=1024
    [sanei_scsi] sanei_scsi_cmd: SCSI completed with cdb_status=2
    [epson] sense_handler() : sense code = 0xf0
    [epson] receive buf, expected = 4, got = 0
    [epson] ident failed
    scanimage: open of device epson:/dev/scanner failed: Invalid argument

    [...]

    It would be very helpful to know where to look: Is the problem with
    the HP-UX code of SANE, or in the Epson backend, or maybe somewhere
    else again?

    Thanks in advance 

    -- 
Michael Piotrowski, M.A.                                  <mxp@dynalabs.de>

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