Device I/O error

From: Bob Jerrard (
Date: Mon Jun 04 2001 - 12:20:06 PDT

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    In trying to get an HP ScanJet 4c operational on a new Mandrake 8.0
    Linux machine I have installed


    I get the following responses to scanimage commands:

    [root@m41 /root]# scanimage -L
    device `hp:/dev/sgc' is a Hewlett-Packard C2520A flatbed scanner
    device `hp:/dev/scanner' is a Hewlett-Packard C2520A flatbed scanner

    [root@m41 /root]# cat /proc/scsi/scsi
    Attached devices:
    Host: scsi0 Channel: 00 Id: 00 Lun: 00
        Vendor: SEAGATE Model: ST318451LC Rev: 0002
        Type: Direct-Access ANSI SCSI revision: 03
    Host: scsi1 Channel: 00 Id: 03 Lun: 00
        Vendor: YAMAHA Model: CRW2100S Rev: 1.0K
        Type: CD-ROM ANSI SCSI revision: 02
    Host: scsi1 Channel: 00 Id: 05 Lun: 00
        Vendor: HP Model: C2520A Rev: 3503
        Type: Processor ANSI SCSI revision: 02

    However, when I try "scanimage -T" I get

    scanimage: scanning image of size 2550x4199 pixels at 1 bits/pixel
    scanimage: acquiring gray frame, 1 bits/sample
    scanimage: reading one scanline, 319 bytes...

    at which point it doe not come back at all.

    Any ideas as to what I need to look for? The scanner works with
    sane-1.0.3 on another machine.


    Dr. Robert J. Jerrard, Professor of Mathematics,
    Concordia University College of Alberta,
    7128 Ada Blvd., Edmonton, Alberta, T5B 4E4, Canada.
    Phone: (780) 479-9291, Fax: (780) 474-1933.

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