[sane-devel] hp7650 hangs on hi res color scan

[Michael J Eurice]

Hi Ilia,

First I scanned a two page test document (first page 8.5 by 10.0 inches 
and the second page 8.5 by 11.0 inches, both verified with a steel rule) 
with the hp7650 attached to a win2k machine.  All worked at 150, 200, 
300, 600, and 1200dpi.

I next scanned with the hp7650 attached to an Ubuntu 10.04 server under 
sane and controlled by an Ubuntu 10.04 laptop running xsane.  A 
representative scan is attached and named 
scan_tst_linx1004_color_300dpi_2pg_03jun10.pdf, with the settings 
indicated in the file name.

I scanned the two page test document as lineart and the scanner worked 
up to 1200 dpi; a representative scan is file 
scan_tst_linx1004_lnart_1200dpi_2pg_03jun10.pdf.  Evidently the problem 
is linked to only color scans greater than 300dpi.

I also scanned the two page test document from an Arch Linux laptop with 
debug options enabled, with the results in hp5590_0.log.

Next I scanned the two page test document as lineart at 100dpi from the 
Ubuntu laptop with debug options enabled, with the results logged to 
hp5590_a.log.

Next I scanned the two page test document as color at 300dpi from the 
Ubuntu laptop with debug options enabled, with the results logged to 
hp5590_b.log.

Finally I scanned the two page test document as color at 600dpi from the 
Ubuntu laptop with debug options enabled, with the results logged to 
hp5590_c.log; the scanner locked up part of the way into scanning the 
first page and the scan had to be canceled.  Something was continually 
writing to the log file; I had to control "c" at the command line to get 
it to stop.  When I allowed the writing to continue for a longer period, 
I still had to control "c" to get it to stop and the logfile had grown 
to 1.3Gb.

The two pdf files and the four scan logs attached to six following 
emails - I seem to be having some sort of email limit problem.

Let me know if you get all the attachments, and feel free to contact me 
with any questions,

-- 

Michael J Eurice