HP Scanjet 3670 is very slow when scanning at 600-1200 dpi

[Csipak Attila]

Binary package hint: simple-scan

Scanner model: HP ScanJet 3670
Ubuntu-release: 10.04 LTS

Relevant packages and versions:

libsane 1.0.22~git20101229-0ubuntu1~lucid1
libsane-dbg 1.0.22~git20101229-0ubuntu1~lucid1
sane-utils 1.0.22~git20101229-0ubuntu1~lucid1
simple-scan 1.0.3-0ubuntu1
xsane 0.996-2ubuntu3
xsane-common 0.996-2ubuntu3

Note: libsane, libsane-dbg and sane-utils packages were downloaded from Robert Ancell's PPA (https://edge.launchpad.net/~robert-ancell/+archive/sane-backends), after the original packages that shipped with Lucid didn't work out of the box, see Bug #587600.

When I use Simple Scan with "scan as photo" option at higher resolutions, the scanning process is very slow: on 600 dpi, it takes 5-6 minutes; on 1200 dpi it would take about an hour to scan a page (to be honest, I cancelled the process about halfway).

In contrast, if I use xsane with "factory settings" + 1200 dpi, the whole process takes about 2-3 minutes.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: simple-scan 1.0.3-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-27.49-generic-pae 2.6.32.26+drm33.12
Uname: Linux 2.6.32-27-generic-pae i686
Architecture: i386
CheckboxSubmission: e2d5c7bfc37fda48b3b6654086b36cd0
CheckboxSystem: edda5d4f616ca792bf437989cb597002
Date: Sat Jan 15 17:47:13 2011
DriverPackageVersions:
 libsane 1.0.22~git20101229-0ubuntu1~lucid1
 libsane-extras N/A
 hplip N/A
 hpoj N/A
ExecutablePath: /usr/bin/simple-scan
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-27-generic-pae root=UUID=33a8cb8e-2586-4bf1-a90f-7edaf6aa5b01 ro quiet splash
ProcEnviron:
 LANG=hu_HU.UTF-8
 SHELL=/bin/bash
SimpleScanLog:

SourcePackage: simple-scan
dmi.bios.date: 12/13/2005
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080009
dmi.board.name: P4P800SE
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: Rev 2.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080009:bd12/13/2005:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASUSTeKComputerInc.:rnP4P800SE:rvrRev2.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

[Mossroy (mossroy)]

I experience the same speed problem, either with xsane or simple-scan, with the same scanner HP Scanjet 3670.
I think it is related to sane-backends, not simple-scan

I did a few tests :

In a Windows XP virtual machine (Virtualbox 4.0.4 with USB2 support), on my computer :
- the initialization takes between 12 and 16 seconds
- the scan at 300 dpi takes 55 seconds
- the scan at 600 dpi takes around 4 minutes
- the scan at 1200 dpi takes around 30 minutes

On the same computer, on Lucid 64bits, with the latest version of sane-backends (sane-backends - 1.0.22-0ubuntu1~lucid2 , taken from the PPA : https://edge.launchpad.net/~robert-ancell/+archive/sane-backends/+packages ) :
- the initialization takes between 16 and 20 seconds. That seems to depend on the dpi settings and/or the fact that a previous scan has been made or not
- the scan at 300 dpi takes 55 seconds
- the scan at 600 dpi takes around 8 minutes
- the scan at 1200 dpi takes around 90 minutes (I stopped it before the end)

That would lead to the following assumptions for the linux driver :
- the initialization time seems very long to me, but it might be "normal" on that scanner
- the scan time is normal at 300 dpi, but should be improvable at 600 dpi (4 minutes vs 8 minutes) and 1200 dpi (30 minutes vs 90 minutes)

[bash321 (bash321)]

same problem on samsung clx 3175fn over the network it takes forever!!!! It is not slow though on xsane???? I don't know why this is the case.
precise pangolin 12.04 alpha 2 and simple scan. plus see this ubuntu forum post. http://ubuntuforums.org/showthread.php?t=1920543

[penalvch (penalvch)]

Csipak Attila, thank you for reporting this and helping make Ubuntu better.

As per https://wiki.ubuntu.com/Releases 10.04 Desktop reached EOL on May 9, 2013.

If you have an issue in a supported release (ex. 16.04) please file a new report, and feel free to subscribe me to it.

[Csipak Attila (corphicks)]

I filed a new bug report against the 16.04 release, see Bug #1619868.