Scanners not supported by SANE

Manufacturer and model

Epson CX6400

Bus type

USB

Vendor ID

0x04b8

Product ID

0x0805

Chipset

Comments

Seems to work with the epson backend with some tricks. See this bugreport for details.

Multi-function-device. Is detected as "Epson PX-A650". Said to be similar to Epson CX5200 which is labelled as "untested" by the epson backend.

Someone else reports: "Should be similar to the CX-5400, which is reported to work with the generic sane driver. See this link. scanimage immediately reports: "sane_start: Invalid argument".

A quick look at the code in gdb shows that the failure occurs when setting up the half-tone mode. It does get a couple initialization commands successfully sent before this.

Output of /proc/bus/usb/devices or sane-find-scanner -v -v

<device descriptor of 0x04b8/0x0805 at 001:004 (EPSON USB2.0 MFP)>
bLength               18
bDescriptorType       1
bcdUSB                2.00
bDeviceClass          0
bDeviceSubClass       0
bDeviceProtocol       0
bMaxPacketSize0       64
idVendor              0x04B8
idProduct             0x0805
bcdDevice             1.00
iManufacturer         1 (EPSON)
iProduct              2 (USB2.0 MFP)
iSerialNumber         3 (H70020309151338220)
bNumConfigurations    1
 <configuration 0>
 bLength              9
 bDescriptorType      2
 wTotalLength         78
 bNumInterfaces       3
 bConfigurationValue  1
 iConfiguration       4 (USB2.0 MFP)
 bmAttributes         192 (Self-powered)
 MaxPower             2 mA
  <interface 0>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   0
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    255
   bInterfaceSubClass 255
   bInterfaceProtocol 255
   iInterface         5 (EPSON Scanner)
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x01 (out 0x01)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x82 (in 0x02)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
  <interface 1>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   1
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    7
   bInterfaceSubClass 1
   bInterfaceProtocol 2
   iInterface         6 (USB2.0 Printer)
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x04 (out 0x04)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x85 (in 0x05)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
  <interface 2>
   <altsetting 0>
   bLength            9
   bDescriptorType    4
   bInterfaceNumber   2
   bAlternateSetting  0
   bNumEndpoints      2
   bInterfaceClass    8
   bInterfaceSubClass 6
   bInterfaceProtocol 80
   iInterface         7 (USB2.0 Mass Storage)
    <endpoint 0>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x07 (out 0x07)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
    <endpoint 1>
    bLength           7
    bDescriptorType   5
    bEndpointAddress  0x88 (in 0x08)
    bmAttributes      2 (bulk)
    wMaxPacketSize    64
    bInterval         0 ms
    bRefresh          0
    bSynchAddress     0
found USB scanner (vendor=0x04b8 [EPSON], product=0x0805 [USB2.0 MFP]) at libusb:001:004

Want to add or correct information?

If anything is wrong or missing on this page please file a bug report or use the the form for adding an unsupported device.

If you own an unsupported scanner, please send as much information as possible. Especially the output of sane-find-scanner -v -v and/or cat /proc/scsi/scsi (for SCSI scanners) or cat /proc/bus/usb/devices (for USB scanners) can help. If you dare to open the scanner, have a look at the text that's printed on the chips. That may help to identify the chipset. If you know that the scanner is similar to another one (e.g. supported by the same Windows driver), please also mention this fact.

Information for Manufacturers

Are you a manufacturer or vendor of scanners and one of your scanners is not supported by SANE yet? In this case please have a look at our information for manufacturers.