Questions about USB printer

[volkerbradley]

I connected my HP Deskjet 1120C via a USB connection to my T43P Lenovo laptop, powered the printer on and then booted into a fresh install of Kubuntu Intrepid.
The printer was installed.
When I tried to print any document, from Kate, Firefox, etc., the documents would not print. I then went into the Cups interface at http://localhost:631 and discovered that there was a message which said "Device busy; will retry in 30 seconds..."
I ran the printingbuginfo -u script and received messages stating Make sure your USB printer is connected and powered on! and UsbPrinterDevices: lrwxrwxrwx 1 root root 7 Dec 6 03:59 /dev/usblp0 -> usb/lp0
UsbPrinterIEEE1284Id: /dev/usblp0: Error: Device or resource busy: can't open '/dev/usblp0'
lsusb yields:
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 003: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 004 Device 002: ID 0a5c:201e Broadcom Corp. IBM Integrated Bluetooth IV
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 003: ID 05ab:0002 In-System Design Parallel Port
Bus 003 Device 002: ID 047f:0ca1 Plantronics, Inc. USB DSP v4 Audio Interface
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
I don't see the printer here.
I seem to have some type of USB permission problem.
Can you give me some suggestions on how to fix this problem?

[toad]

Re: Questions about USB printer

To check which USB devices are plugged in and recognised:

lsusb

If your printer is not there, unplug and plug it in again.

For HP printers there is a decent HPLIP program under menu - system from which you can attempt to talk to your printer.

HTH

[volkerbradley]

Re: Questions about USB printer

Thanks for your response. Made significant progress thanks to your suggestions. I'm delighted.
I unplugged and replugged the USB printer.
It now prints typed material from Open Office Writer, Firefox, Okular, Acrobat Reader and the test page from CUPS interface at http://localhost:631.
When I am in Kate, however, it prints pages that contain only a horizontal line on the bottom of the page. The typed text is missing.
lsusb still does not show the printer. Here is output now:
lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 003: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 004 Device 002: ID 0a5c:201e Broadcom Corp. IBM Integrated Bluetooth IV
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 004: ID 05ab:0002 In-System Design Parallel Port
Bus 003 Device 002: ID 047f:0ca1 Plantronics, Inc. USB DSP v4 Audio Interface
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
I tried the HP Device manager.
It says: No devices found. Please make sure that your printer is properly connected and powered on.

I notice improvement in the buginfo file however:
UsbPrinterDevices: lrwxrwxrwx 1 root root 7 Dec 6 07:19 /dev/usblp0 -> usb/lp0
UsbPrinterIEEE1284Id:
/dev/usblp0: GET_DEVICE_ID string:
VSTATU16;MFG:HEWLETT-PACKARD;MDLESKJET 1120C;CMD:PCL,MLC,PML;CLASS:PRINTERESCRIPTION:Hewlett-Packard Deskjet 1120C;CLASS:PRINTERESCRIPTION:Hewlett-Packard Deskjet 1120C;
UsbPrinterKernelModules:
usblp 20480 0
usbcore 148848 8 snd_usb_audio,snd_usb_lib,btusb,usblp,usbhid,uhci_ hcd,ehci_hcd

Obviously, there is a connection with the printer now. Don't know why I can't see it with the lsusb command or with the HP Device Manager.
Do you have any other suggestions?