[Hp3300backend-devel] HP 3400Cse scanner not working

[Steven A. D. <lin...@mi...>]

I just pulled the latest cvs sources and tried them on a HP 3400Cse (what it says on outside
of the box) and it does not respond as expected. I am using linux kernel method with kernel
from Mandrake (2.4.19-16mdk) since it has support for Win4Lin modules I also run. They are
not loaded BTW when I do these tests.

Product number from the scanner box is C7720A  ABA  CN1281F06Y

If I do any commands with testtool I get the following in the dmesg output:

scanner.c: open_scanner(1): Unable to access minor data
scanner.c: open_scanner(2): Unable to access minor data
scanner.c: open_scanner(3): Unable to access minor data
scanner.c: open_scanner(4): Unable to access minor data
scanner.c: open_scanner(5): Unable to access minor data
scanner.c: open_scanner(6): Unable to access minor data
scanner.c: open_scanner(7): Unable to access minor data
scanner.c: open_scanner(8): Unable to access minor data
scanner.c: open_scanner(9): Unable to access minor data
scanner.c: open_scanner(10): Unable to access minor data
scanner.c: open_scanner(11): Unable to access minor data
scanner.c: open_scanner(12): Unable to access minor data
scanner.c: open_scanner(13): Unable to access minor data
scanner.c: open_scanner(14): Unable to access minor data
scanner.c: open_scanner(15): Unable to access minor data

and it repeats over and over.

If I run "./testtool -u /dev/usb/scanner0 -ov"
the output looks like:

Initializing scanner
Registering transfer method 0: Linux scanner kernel module
VendorId 0x03F0, ProductId 0x0405
Matching USB device 0x03F0-0x0405 ... found Hewlett-Packard ScanJet 3400C
_ReportDevice '/dev/usb/scanner0'
Hp3300cXferOpen '/dev/usb/scanner0'
probing Linux scanner kernel module
Matching USB device 0x03F0-0x0405 ... found Hewlett-Packard ScanJet 3400C
Setting params for Hp3400c/Hp4300c
Probing scanner...
  Gamma table entries are 16 bit
  NIASH version > 00014
Creating calibration file
_iScaleDown (Dpi,Lpi) = (1,1)
_iBytesPerLine = 15900
_iLinesPerCircBuf = 12
Allocated 190800 bytes for circular buffer
_iLinesPerXferBuf = 3
Xfer block size = 47700
buffer level =  69, <reading 47700 bytes>, buffer level =  72
Black level (11,6,5), White level (40,27,25)

If I do a register dump it appears to have different register contents
from what is shown for the 3400C at:

http://home.kabelfoon.nl/~bertrik/hp3300c/devel.html

(bottom of the page)

Anyway when I do a register dump I get:

 ./testtool -u /dev/usb/scanner0 -p

0000 0D 0D 0D 4C 07 0D 40 02
0008 0D 0D 0D 0D 0D 0D 0D 0D
0010 0D 0D 0D 0D 0D 0D 0D 0D
0018 0D 0D 0D 0D 0D 0D 0D 0D
0020 00 0D 0D 0D 21 00 00 22
0028 01 03 79 00 00 00 00 00
0030 00 00 00 00 00 00 00 00
0038 3B 0C 43 01 01 01 00 00

I can turn the lamp on and off but when I try "./testtool -u /dev/usb/scanner0 -s 4,5 > stufferty"
it "looks like it is scanning but I get a zero length file. Also once I have tried the above scan
command I can no longer access the scanner. When I do I get an error message about:

./testtool -u /dev/usb/scanner0 -l
  No NIASH chipset found!
_ProbeRegisters failed!

If I unplug the USB cable and plug it back in then I can do stuff again until I actually try a
scan again.

BTW, when I try a scan it move the bar about half way do the track, it pauses, and then it
moves to the end of the track but does not stop! It grinds a while and then stops. It will
try to move beyond the end of the track again a few seconds later until I end the above
command with a Ctrl-C    Also the scan command never returns and I HAVE to Ctrl-C it.
Is it supposed to scan and then return?
-- 
Steven A. DuChene     lin...@mi...
                      sdu...@mi...