[sane-devel] Canon_pp freezes halfway

selma kapetanovic kselmak at hotmail.com
Wed Nov 29 01:22:45 CET 2006


Hi,

I did not find anything in the archives that could help. I have Canon N340P and Canon FB330P parallel port scanners.
I am running
* Ubuntu, kernel 2.6.15-27-386.
* scanimage (sane-backends) 1.0.17; backend version 1.0.17
* libieee1284-3 0.2.10-1
* Parallel port is in EPP mode (BIOS setting)

It scans most often (not always) in black and white. For color mode the number of "reads" varies from two to four.
I spent quite some time trying to make it work. Should I have known it takes so much time, I would toss the scanner in the garbage.
At this point it is more of a challenge. I know that I am not the only person who has the problem and I want to post the solution to the Ubuntu web site along with a recommendation not to buy canon scanners.

Scanning stops after producing the following output. Several minutes later the scanner returns the head to the initial position. Scanimage does not terminate.
 
Please let me know if I can provide any additional information that could help. Thank you

ubuntu at ubuntu:~/Desktop$ sudo scanimage  --mode Color >image.png
[sanei_debug] Setting debug level of canon_pp to 4.
[canon_pp] >> sane_init(0xbf820398, 0x80491d0): sane-backends 1.0.17
[canon_pp] sane_init: >> ieee1284_find_ports
[canon_pp] sane_init: 0 << ieee1284_find_ports
[canon_pp] >> init_device
[canon_pp] << init_device
[canon_pp] detect_mode: Port supports ECP-H.
[canon_pp] detect_mode: Port supports interrupts.
[canon_pp] sane_init: >> initialise
[canon_pp] sane_init: << 0 initialise
[canon_pp] << sane_init
[canon_pp] >> sane_get_devices (0xbf8203f8, 0)
[canon_pp] << sane_get_devices
[canon_pp] >> sane_open (h=0xbf8203f8, name="parport0")
[canon_pp] sane_open: >> initialise
[canon_pp] sane_open: << 0 initialise
[canon_pp] sane_open: >> load_weights(/home/kostya/.sane/canon_pp-calibration-pp0, 0x8052634)
[canon_pp] sane_open: << 0 load_weights
[canon_pp] << sane_open
[canon_pp] >> sane_control_option (h=0x8052490, opt=0, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=0, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=6, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=7, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=4, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=5, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=2, act=1)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=4, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=6, act=1)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=5, act=0)
[canon_pp] << sane_control_option
[canon_pp] >> sane_control_option (h=0x8052490, opt=7, act=1)
[canon_pp] << sane_control_option
[canon_pp] >> sane_start (h=0x8052490)
[canon_pp] << sane_start
[canon_pp] >> sane_get_parameters (h=0x8052490, params=0xbf8214fc)
[canon_pp] << sane_get_parameters
[canon_pp] >> sane_read (h=0x8052490, buf=0x805ed90, maxlen=32768)
[canon_pp] >> read_segment(x, x, x, 58, 1, 295)
[canon_pp] << 0 read_segment
[canon_pp] << sane_read
[canon_pp] >> sane_read (h=0x8052490, buf=0x805ed90, maxlen=32768)
[canon_pp] >> sane_read (h=0x8052490, buf=0x805ed90, maxlen=32768)
[canon_pp] >> read_segment(x, x, x, 58, 1, 237)


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