Problems with HP 6300C ADF

Hello all,

I've got problems with my HP6300C Scanner unter SuSE Linux
9.3.
I need to scan a lot of documents. Therefore I bought the
scanner with ADF on ebay. 
The scanner semms to be OK. The scanner uses USB 1.0 and the
computer has USB 2.0. USB on the computer works fine with
other components. 
When I boot the computer and switch on the scanner, the
scanner is recognised by Linux and I can scan about 20 pages
with the ADF. 

After about 20 pages, sometimes after 2 or 3 pages, an
I/O-error occures. After that it is not possible to go on
scanning in any way. Maybe there is an ennor in USB
communication.

Once the I/O-Error occured the scan starts and the ADF feeds
the pape to the startposition. The scanner moves to the scan
position and moves once or twice. After that scanning should
start, but the I/O error appears again and again. Even when
I switch off the scanner for a while and switch it on again,
it is connected to a new USB-Port, but the error appears
again on the 2nd page. 

questions:
What kind of error is it?
	- thermal problem within the scanner
	- USB-communication in the scanner
		- Is it useful to try the SCSI-connector - I havn't got a
SCSI adaptor and cable yet. 
	- USB communication of USB1.0 (scanner) and USB20
(computer)
	- timing (handshaking) between computer and scanner
Can I reset the USB driver on the computer?
Can I reset the scanner over USB?

components
SuSE 9.3 mit KDE 3.4
Scanimage backend 1.0.15; xsane 0.999
Es ist der HP-Treiber von sane installiert, das komplette
Funktionalität
bieten soll.
scanner USB 1.0.
computer USB 2.0

Do you have any tips for solving the problem?

Regards
Guido Bergen


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

long-john01 wrote, On 11/11/2006 11:05 AM:
> questions:
> What kind of error is it?
> 	- thermal problem within the scanner
> 	- USB-communication in the scanner
> 		- Is it useful to try the SCSI-connector - I havn't
got a SCSI adaptor and cable yet. 
> 	- USB communication of USB1.0 (scanner) and USB20
(computer)
> 	- timing (handshaking) between computer and scanner
> Can I reset the USB driver on the computer?
> Can I reset the scanner over USB?
> 

What does a "dmesg" command reveal? it sounds like
your issue is having
some similarities with one of my systems, where the USB
module seems to
be flooded at times. you can try a "sudo lsmod | grep
-i usb" and
possibly remove, e.g. uhci-hcd ("sudo rmmod
uhci-hcd"), possibly with
the force "-f" argument, and load it again using
"sudo modprobe uhci-hcd"

Another issue might be that the computer is expecting USB2
and is
sending data too fast for the scanner to react to it, I
remember this to
be a problem in the past with the CS3200F (experimental)
module, "Known
issues: There may be problems with communications with the
scanner if
you are running a fast processor (this was found by Kristian
Fiskerstrand, thanks!).It may happen, e.g., that after
uploading the
firmware reading it back fails and thence the boot fails. I
will
take a look at those speed issues later." (
http://www.s
canners-on-linux.com/node/36 )

Personally I can recommend the Epson Perfection 4490 with
the optional
ADF, that works perfectly for me.

- --
- ----------------------------
Kristian Fiskerstrand
http://www.kfwebs.net
- ----------------------------
http://www.secure-my-e
mail.com
http://www.secure-m
y-internet.com


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Hello,

I tried the following:

dmesg | grep -i usb

PCI0 PS2K UAR1 USB1 USB2 USB3 S139  LAN  MDM
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller (OHCI)
Driver (PCI)
ohci_hcd 0000:00:03.0: new USB bus registered, assigned bus
number 1
hub 1-0:1.0: USB hub found
ohci_hcd 0000:00:03.1: new USB bus registered, assigned bus
number 2
hub 2-0:1.0: USB hub found
ehci_hcd 0000:00:03.2: new USB bus registered, assigned bus
number 3
ehci_hcd 0000:00:03.2: USB 2.0 initialized, EHCI 1.00,
driver 10 Dec 2004
hub 3-0:1.0: USB hub found
usb 2-1: new low speed USB device using ohci_hcd and address
2
usb 2-3: new full speed USB device using ohci_hcd and
address 3
usbcore: registered new driver hiddev
input: USB HID v1.00 Mouse [Microsoft Microsoft
IntelliMouse® Explorer]
on usb-0000:00:03.1-1
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
drivers/usb/serial/usb-serial.c: USB Serial support
registered for Generic
usbcore: registered new driver usbserial_generic
usbcore: registered new driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial Driver core v2.0
usb 2-3: USB disconnect, address 3
usb 2-3: new full speed USB device using ohci_hcd and
address 4
usb 2-3: USB disconnect, address 4
usb 2-3: new full speed USB device using ohci_hcd and
address 5
usb 2-3: USB disconnect, address 5
usb 2-3: new full speed USB device using ohci_hcd and
address 6
usb 2-3: USB disconnect, address 6
usb 2-3: new full speed USB device using ohci_hcd and
address 7
usb 2-3: USB disconnect, address 7
usb 2-3: new full speed USB device using ohci_hcd and
address 8
usb 2-3: USB disconnect, address 8
usb 2-3: new full speed USB device using ohci_hcd and
address 9
usb 2-3: USB disconnect, address 9
usb 2-3: new full speed USB device using ohci_hcd and
address 10
usb 2-3: USB disconnect, address 10
usb 2-3: new full speed USB device using ohci_hcd and
address 11
usb 2-3: USB disconnect, address 11

and after removing and loading of ohci-hcd the following
messages appeared:

usb usb1: USB disconnect, address 1
ohci_hcd 0000:00:03.0: USB bus 1 deregistered
usb usb2: USB disconnect, address 1
usb 2-1: USB disconnect, address 2
ohci_hcd 0000:00:03.1: USB bus 2 deregistered
ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller (OHCI)
Driver (PCI)
ohci_hcd 0000:00:03.0: new USB bus registered, assigned bus
number 1
hub 1-0:1.0: USB hub found
ohci_hcd 0000:00:03.1: new USB bus registered, assigned bus
number 2
hub 2-0:1.0: USB hub found
usb 2-1: new low speed USB device using ohci_hcd and address
2
input: USB HID v1.00 Mouse [Microsoft Microsoft
IntelliMouse® Explorer]
on usb-0000:00:03.1-1
usb 2-3: new full speed USB device using ohci_hcd and
address 3

This is the output of: lsmod | grep -i usb
usbserial              28008  0
usbhid                 41312  0
usbcore               108760  5
ohci_hcd,usbserial,usbhid,ehci_hcd


I don't understand to much of these messages, but for me it
seems the
scanner is recognized as a full speed device.

So is it possible to force this device to be recognized as a
low speed
device?

Now I removed the module and loaded it again, and  the
scanner seems to
scan more pages. So maybe we are on the right trace.

Thank you for help
Regards Guido


>
> What does a "dmesg" command reveal? it sounds
like your issue is having
> some similarities with one of my systems, where the USB
module seems to
> be flooded at times. you can try a "sudo lsmod |
grep -i usb" and
> possibly remove, e.g. uhci-hcd ("sudo rmmod
uhci-hcd"), possibly with
> the force "-f" argument, and load it again
using "sudo modprobe uhci-hcd"
>
>
> Personally I can recommend the Epson Perfection 4490
with the optional
> ADF, that works perfectly for me.
I just looked in ebay for this scanner, an I think, I cannot
afford this
scanner at the moment.




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Hello,

I'm sorry, but the scanner doen't work any better.
The error occures sometimes after one page, sometime after
20 pages, and
I can see no reason, why the scanner does work sometimes and
does not
work at the next time. The error is not predictable.

Maybe the scanner is waiting for a signal from the computer
or from the
electronics.

When the error occured, the computer gets a time out and
gives the
I/O-error.
After that, there is no communication possible between
scanner and computer.
After about 5 minutes gets a time out and makes a reset, so
the scanner
is still running.
After that the communication between scanner and computer is
possible
again on the same USB-adress.

Any ideas?
Does anybody know something about errors of these
HP-Scanners or about
errors of the USB module?

Thank you,
Guido

long-john01 wrote:
> Hello,
>
> I tried the following:
>
> dmesg | grep -i usb
>
> PCI0 PS2K UAR1 USB1 USB2 USB3 S139  LAN  MDM
> usbcore: registered new driver usbfs
> usbcore: registered new driver hub
> ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller
(OHCI) Driver (PCI)
> ohci_hcd 0000:00:03.0: new USB bus registered, assigned
bus number 1
> hub 1-0:1.0: USB hub found
> ohci_hcd 0000:00:03.1: new USB bus registered, assigned
bus number 2
> hub 2-0:1.0: USB hub found
> ehci_hcd 0000:00:03.2: new USB bus registered, assigned
bus number 3
> ehci_hcd 0000:00:03.2: USB 2.0 initialized, EHCI 1.00,
driver 10 Dec 2004
> hub 3-0:1.0: USB hub found
> usb 2-1: new low speed USB device using ohci_hcd and
address 2
> usb 2-3: new full speed USB device using ohci_hcd and
address 3
> usbcore: registered new driver hiddev
> input: USB HID v1.00 Mouse [Microsoft Microsoft
IntelliMouse® Explorer]
> on usb-0000:00:03.1-1
> usbcore: registered new driver usbhid
> drivers/usb/input/hid-core.c: v2.01:USB HID core driver
> drivers/usb/serial/usb-serial.c: USB Serial support
registered for Generic
> usbcore: registered new driver usbserial_generic
> usbcore: registered new driver usbserial
> drivers/usb/serial/usb-serial.c: USB Serial Driver core
v2.0
> usb 2-3: USB disconnect, address 3
> usb 2-3: new full speed USB device using ohci_hcd and
address 4
> usb 2-3: USB disconnect, address 4
> usb 2-3: new full speed USB device using ohci_hcd and
address 5
> usb 2-3: USB disconnect, address 5
> usb 2-3: new full speed USB device using ohci_hcd and
address 6
> usb 2-3: USB disconnect, address 6
> usb 2-3: new full speed USB device using ohci_hcd and
address 7
> usb 2-3: USB disconnect, address 7
> usb 2-3: new full speed USB device using ohci_hcd and
address 8
> usb 2-3: USB disconnect, address 8
> usb 2-3: new full speed USB device using ohci_hcd and
address 9
> usb 2-3: USB disconnect, address 9
> usb 2-3: new full speed USB device using ohci_hcd and
address 10
> usb 2-3: USB disconnect, address 10
> usb 2-3: new full speed USB device using ohci_hcd and
address 11
> usb 2-3: USB disconnect, address 11
>
> and after removing and loading of ohci-hcd the
following messages appeared:
>
> usb usb1: USB disconnect, address 1
> ohci_hcd 0000:00:03.0: USB bus 1 deregistered
> usb usb2: USB disconnect, address 1
> usb 2-1: USB disconnect, address 2
> ohci_hcd 0000:00:03.1: USB bus 2 deregistered
> ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller
(OHCI) Driver (PCI)
> ohci_hcd 0000:00:03.0: new USB bus registered, assigned
bus number 1
> hub 1-0:1.0: USB hub found
> ohci_hcd 0000:00:03.1: new USB bus registered, assigned
bus number 2
> hub 2-0:1.0: USB hub found
> usb 2-1: new low speed USB device using ohci_hcd and
address 2
> input: USB HID v1.00 Mouse [Microsoft Microsoft
IntelliMouse® Explorer]
> on usb-0000:00:03.1-1
> usb 2-3: new full speed USB device using ohci_hcd and
address 3
>
> This is the output of: lsmod | grep -i usb
> usbserial              28008  0
> usbhid                 41312  0
> usbcore               108760  5
ohci_hcd,usbserial,usbhid,ehci_hcd
>   
>   

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