Hello, First of all, thanks a lot for your efforts to improve the community.
I just found this thread looking for a solution to a problematic ticket printer. It is the kind of printer that is detected as parallel but has a USB cable. Manufacturer: EC Liner Model: EC Printer EC-PM-5890X Here's the website of the manufacturer: http://www.ecline.com.mx/ It seems that the computer is not detecting the printer directly, but the parallel connector (QinHeng Electronics). Here's all the information you asked in the comments above. If you need any more, please let me know: ------------------------------------ root@monsterbox:/# uname -a Linux monsterbox 3.8.0-23-generic #34-Ubuntu SMP Wed May 29 20:22:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux ------------------------------------ root@monsterbox:/# lsusb ... Bus 001 Device 005: ID 1a86:7584 QinHeng Electronics CH340S ... ------------------------------------ root@monsterbox:/# lsusb -v -d 1a86:7584 Bus 001 Device 005: ID 1a86:7584 QinHeng Electronics CH340S Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x1a86 QinHeng Electronics idProduct 0x7584 CH340S bcdDevice 2.54 iManufacturer 0 iProduct 2 USB2.0-Print iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 96mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 7 Printer bInterfaceSubClass 1 Printer bInterfaceProtocol 2 Bidirectional iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0020 1x 32 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0020 1x 32 bytes bInterval 0 Device Status: 0x0000 (Bus Powered) ------------------------------------ root@monsterbox:/# lsmod | grep lp usblp 18111 0 ablk_helper 13597 1 aesni_intel cryptd 20373 3 ghash_clmulni_intel,aesni_intel,ablk_helper lpc_ich 17061 0 lp 17759 0 parport 46345 3 lp,ppdev,parport_pc ------------------------------------ network ipp14 network http network ipp network https direct hp network smb network beh network lpd network ipps network socket serial serial:/dev/ttyS0?baud=115200 direct hpfax direct usb://Unknown/Printer ------------------------------------ root@monsterbox:/# lpinfo -v network ipp14 network http network ipp network https direct hp network smb network beh network lpd network ipps network socket serial serial:/dev/ttyS0?baud=115200 direct hpfax direct usb://Unknown/Printer ------------------------------------ root@monsterbox:/# ls -l /dev/bus/usb/*/* crw-rw-r-- 1 root root 189, 0 Jun 11 00:05 /dev/bus/usb/001/001 crw-rw-r-- 1 root root 189, 1 Jun 11 00:05 /dev/bus/usb/001/002 crw-rw-r-- 1 root lp 189, 4 Jun 11 00:33 /dev/bus/usb/001/005 crw-rw-r-- 1 root root 189, 128 Jun 11 00:05 /dev/bus/usb/002/001 crw-rw-r-- 1 root root 189, 129 Jun 11 00:05 /dev/bus/usb/002/002 crw-rw-r-- 1 root root 189, 130 Jun 11 00:05 /dev/bus/usb/002/003 crw-rw-r-- 1 root root 189, 256 Jun 11 00:05 /dev/bus/usb/003/001 crw-rw-r-- 1 root root 189, 257 Jun 11 00:05 /dev/bus/usb/003/002 crw-rw-r-- 1 root root 189, 258 Jun 11 00:05 /dev/bus/usb/003/003 crw-rw-r-- 1 root root 189, 384 Jun 11 00:05 /dev/bus/usb/004/001 crw-rw-r-- 1 root root 189, 512 Jun 11 00:05 /dev/bus/usb/005/001 crw-rw-r-- 1 root root 189, 640 Jun 11 00:05 /dev/bus/usb/006/001 ------------------------------------ root@monsterbox:/# ls -l /dev/usb/lp* crw-rw---- 1 root lp 180, 2 Jun 11 00:33 /dev/usb/lp2 ------------------------------------ root@monsterbox:/# sudo /usr/lib/cups/backend/usb DEBUG: list_devices DEBUG: libusb_get_device_list=12 DEBUG2: Printer found with device ID: Device URI: usb://Unknown/Printer direct usb://Unknown/Printer "Unknown" "Unknown" "" "" ------------------------------------ root@monsterbox:/# ldd /usr/lib/cups/backend/usb | grep usb libusb-1.0.so.0 => /lib/x86_64-linux-gnu/libusb-1.0.so.0 (0x00007f56a93a9000) ------------------------------------ root@monsterbox:/# sudo modprobe usblp root@monsterbox:/# lsmod | grep usb usblp 18111 0 usb_storage 57204 1 usbhid 47074 0 hid 101002 2 hid_generic,usbhid root@monsterbox:/# sudo usb_printerid /dev/usb/lp2 GET_DEVICE_ID string: ��E��mg���dg��<WE���� ��TE���,�%��+�%�mg����g����g����E��mg�����g����g��(`��g��@+�%�0+�%����| UЍ����<WE���������� ���dg�� <�dg��-�%�M�����%� ��E��P-�%�&�beJ�E��&���`��%��`��%���E���-�%�.N=���E��.8�� �� ��.�%��-�%� � ����g����g��jg���dg���@�� ��p@h�g���.�%�`.�%�jg����g��h�g����E��jg���h�g�����%���g����g���-�%��-�%�.N=�v��@���� � ���dg��v0/�%�����= @� root@monsterbox:/# sudo rmmod usblp ------------------------------------ -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/910272 Title: USB->Parallel adapter produces crappy device URI and CUPS "usb" backend cannot cope with it Status in “cups” package in Ubuntu: Fix Released Status in “cups” source package in Oneiric: Won't Fix Bug description: Parallel port dot matrix printer Panasonic KX-P2124 connected via usb- parallel cable to HP6600 PC; running Ubuntu 11.10 system located on external hard drive attached by usb. Worked on Ubuntu version 8 using URI "parallel:/dev/usb/lp0". Understand that usblp has been deprecated; replace with ??? Cups reports printer not connected. CUPS version is (from UbuntuSoftwareCenter) - "cups 1.5.0-8ubuntu6". #Researched existing bugs - lots of info - no results. No "Help" menu found by selecting upper right located "Gear"/"Printers; could not find any "Wizard." Thank you for your assistance, nvsoar ------------------------------------ w8@w8-FJ463AAR-ABA-a6528p:~$ uname -a Linux w8-FJ463AAR-ABA-a6528p 3.0.0-15-generic #24-Ubuntu SMP Mon Dec 12 15:25:25 UTC 2011 i686 i686 i386 GNU/Linux w8@w8-FJ463AAR-ABA-a6528p:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 067b:3507 Prolific Technology, Inc. PL3507 ATAPI6 Bridge Bus 001 Device 004: ID 058f:6377 Alcor Micro Corp. Multimedia Card Reader Bus 002 Device 002: ID 050d:0002 Belkin Components #Device immediately above is usb to parallel cable w8@w8-FJ463AAR-ABA-a6528p:~$ lsmod | grep lp lp 17455 0 parport 40930 4 parport_pc,ppdev,uss720,lp w8@w8-FJ463AAR-ABA-a6528p:~$ lsmod | grep ppdev ppdev 12849 0 parport 40930 4 parport_pc,ppdev,uss720,lp w8@w8-FJ463AAR-ABA-a6528p:~$ lsmod | grep parport_pc parport_pc 32114 0 parport 40930 4 parport_pc,ppdev,uss720,lp w8@w8-FJ463AAR-ABA-a6528p:~$ ls -l /dev/usb/lp* /dev/bus/usb/*/* ls: cannot access /dev/usb/lp*: No such file or directory crw-rw-r-- 1 root root 189, 0 2011-12-30 15:04 /dev/bus/usb/001/001 crw-rw-r-- 1 root root 189, 1 2011-12-30 15:04 /dev/bus/usb/001/002 crw-rw-r-- 1 root root 189, 3 2011-12-30 15:04 /dev/bus/usb/001/004 crw-rw-r-- 1 root root 189, 128 2011-12-30 15:04 /dev/bus/usb/002/001 crw-rw-r-- 1 root lp 189, 129 2011-12-30 15:25 /dev/bus/usb/002/002 w8@w8-FJ463AAR-ABA-a6528p:~$ dmesg | grep par [ 0.000000] Booting paravirtualized kernel on bare hardware [ 0.000000] vt handoff: transparent VT on vt#7 [ 0.210399] hpet0: 3 comparators, 32-bit 25.000000 MHz counter [ 28.754567] uss720: protocols (eg. bitbang) over USS720 usb to parallel cables [ 28.893725] type=1400 audit(1325286282.534:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=705 comm="apparmor_parser" [ 28.893736] type=1400 audit(1325286282.534:3): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=755 comm="apparmor_parser" [ 28.894175] type=1400 audit(1325286282.534:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=755 comm="apparmor_parser" [ 28.894324] type=1400 audit(1325286282.534:5): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=705 comm="apparmor_parser" [ 28.894438] type=1400 audit(1325286282.534:6): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=755 comm="apparmor_parser" [ 28.894592] type=1400 audit(1325286282.534:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=705 comm="apparmor_parser" [ 30.347397] type=1400 audit(1325286283.986:8): apparmor="STATUS" operation="profile_load" name="/usr/share/gdm/guest-session/Xsession" pid=969 comm="apparmor_parser" [ 30.347408] type=1400 audit(1325286283.986:9): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm-guest-session-wrapper" pid=970 comm="apparmor_parser" [ 30.353749] type=1400 audit(1325286283.994:10): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=973 comm="apparmor_parser" [ 30.359290] type=1400 audit(1325286283.998:11): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=973 comm="apparmor_parser" [ 34.659441] ppdev: user-space parallel port driver [ 34.672608] type=1400 audit(1325286288.314:24): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=1540 comm="apparmor_parser" [ 34.673270] type=1400 audit(1325286288.314:25): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=1540 comm="apparmor_parser" w8@w8-FJ463AAR-ABA-a6528p:~$ ls -l /dev/lp* /dev/parport* ls: cannot access /dev/lp*: No such file or directory ls: cannot access /dev/parport*: No such file or directory w8@w8-FJ463AAR-ABA-a6528p:~$ ls -l /proc/sys/dev/parport/parport*/autoprobe* ls: cannot access /proc/sys/dev/parport/parport*/autoprobe*: No such file or directory w8@w8-FJ463AAR-ABA-a6528p:~$ sudo cat /proc/sys/dev/parport/parport*/autoprobe* [sudo] password for w8: cat: /proc/sys/dev/parport/parport*/autoprobe*: No such file or directory w8@w8-FJ463AAR-ABA-a6528p:~$ lpinfo -v network ipp network http network socket direct hp direct scsi network lpd network smb network beh direct hpfax w8@w8-FJ463AAR-ABA-a6528p:~$ /usr/lib/cups/backend/parallel w8@w8-FJ463AAR-ABA-a6528p:~$ sudo /usr/lib/cups/backend/parallel w8@w8-FJ463AAR-ABA-a6528p:~$ -------------------------------- #From CUPS@localhost:631/Printers/ ▼ Queue Name ▼ Description Location Make and Model Status Panasonic-KX-P2135 Panasonic KX-P2135 Epson LQ-850 Foomatic/lq850 (recommended) Processing - "Printer not connected; will retry in 30 seconds." ------------------------------end ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: cups 1.5.0-8ubuntu6 ProcVersionSignature: Ubuntu 3.0.0-15.24-generic 3.0.13 Uname: Linux 3.0.0-15-generic i686 NonfreeKernelModules: nvidia ApportVersion: 1.23-0ubuntu4 Architecture: i386 Date: Fri Dec 30 16:33:40 2011 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) Lpstat: device for Panasonic-KX-P2135: parallel:/dev/lp0 device for Stylus-COLOR-880: usb://EPSON/Stylus%20COLOR%20880?serial=EPIDH0012072218460 Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 067b:3507 Prolific Technology, Inc. PL3507 ATAPI6 Bridge Bus 001 Device 004: ID 058f:6377 Alcor Micro Corp. Multimedia Card Reader Bus 002 Device 002: ID 050d:0002 Belkin Components MachineType: HP-Pavilion FK792AAR-ABA a6600f Papersize: letter PpdFiles: Panasonic-KX-P2135: Epson LQ-850 Foomatic/lq850 (recommended) Stylus-COLOR-880: Epson Stylus Color 880 - CUPS+Gutenprint v5.2.7 Simplified ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-15-generic root=UUID=18eae402-8bbf-4406-b146-8c34f8c73607 ro quiet splash vt.handoff=7 SourcePackage: cups UpgradeStatus: Upgraded to oneiric on 2011-10-15 (76 days ago) dmi.bios.date: 10/24/2008 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: 5.20 dmi.board.name: Napa dmi.board.vendor: FOXCONN dmi.board.version: HP P/N dmi.chassis.type: 3 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr5.20:bd10/24/2008:svnHP-Pavilion:pnFK792AAR-ABAa6600f:pvr:rvnFOXCONN:rnNapa:rvrHPP/N:cvnHewlett-Packard:ct3:cvr: dmi.product.name: FK792AAR-ABA a6600f dmi.sys.vendor: HP-Pavilion To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/910272/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

