Ubuntu
cups package

  1. Bug #910272
  2. Comment #35

Comment 35 for bug 910272

Revision history for this message
Carlos S (carlossanchezlopez) wrote :

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
------------------------------------