# Scanner information
Author: Henning Meier-Geinitz
Keywords: sane, backend, driver, scanner, unsupported

# Scanners not supported by SANE

## Manufacturer and model

Brother DCP-8020

## Bus type

USB

## Vendor ID

0x04f9

## Product ID

0x0140

## Chipset

## Comments

Scanner, printer, fax.

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

    T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 0
    D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
    P:  Vendor=04f9 ProdID=0140 Rev= 1.00
    S:  SerialNumber=000H3J160683
    C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=  2mA
    I:  If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp
    E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
    E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
    E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
    E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E:  Ad=85(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms

    <device descriptor of 0x04f9/0x0140 at 001:002>
    bLength               18
    bDescriptorType       1
    bcdUSB                2.00
    bDeviceClass          0
    bDeviceSubClass       0
    bDeviceProtocol       0
    bMaxPacketSize0       64
    idVendor              0x04F9
    idProduct             0x0140
    bcdDevice             1.00
    iManufacturer         0 ()
    iProduct              0 ()
    iSerialNumber         3 ((null))
    bNumConfigurations    1
     <configuration 0>
     bLength              9
     bDescriptorType      2
     wTotalLength         62
     bNumInterfaces       2
     bConfigurationValue  1
     iConfiguration       0 ()
     bmAttributes         192 (Self-powered)
     MaxPower             2 mA
      <interface 0>
       <altsetting 0>
       bLength            9
       bDescriptorType    4
       bInterfaceNumber   0
       bAlternateSetting  0
       bNumEndpoints      2
       bInterfaceClass    7
       bInterfaceSubClass 1
       bInterfaceProtocol 2
       iInterface         0 ()
        <endpoint 0>
        bLength           7
        bDescriptorType   5
        bEndpointAddress  0x01 (out 0x01)
        bmAttributes      2 (bulk)
        wMaxPacketSize    512
        bInterval         1 ms
        bRefresh          0
        bSynchAddress     0
        <endpoint 1>
        bLength           7
        bDescriptorType   5
        bEndpointAddress  0x82 (in 0x02)
        bmAttributes      2 (bulk)
        wMaxPacketSize    512
        bInterval         1 ms
        bRefresh          0
        bSynchAddress     0
      <interface 1>
       <altsetting 0>
       bLength            9
       bDescriptorType    4
       bInterfaceNumber   1
       bAlternateSetting  0
       bNumEndpoints      3
       bInterfaceClass    255
       bInterfaceSubClass 255
       bInterfaceProtocol 255
       iInterface         0 ()
        <endpoint 0>
        bLength           7
        bDescriptorType   5
        bEndpointAddress  0x03 (out 0x03)
        bmAttributes      2 (bulk)
        wMaxPacketSize    512
        bInterval         1 ms
        bRefresh          0
        bSynchAddress     0
        <endpoint 1>
        bLength           7
        bDescriptorType   5
        bEndpointAddress  0x84 (in 0x04)
        bmAttributes      2 (bulk)
        wMaxPacketSize    512
        bInterval         1 ms
        bRefresh          0
        bSynchAddress     0
        <endpoint 2>
        bLength           7
        bDescriptorType   5
        bEndpointAddress  0x85 (in 0x05)
        bmAttributes      3 (interrupt)
        wMaxPacketSize    64
        bInterval         16 ms
        bRefresh          0
        bSynchAddress     0
    found USB scanner (vendor=0x04f9, product=0x0140) at libusb:001:002

# 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.

# Links

- General information on how to contribute to SANE, e.g. by writing backends
- Scanner search engine
- SANE homepage

SANE homepage
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