6.2. Migrating existing classic print queues and scanner devices

Procedure

Using driverless to support the USB device

To migrate the existing configuration with classic drivers to driverless support for USB device, follow the below mentioned steps depending on the device capabilities:

1. If the device has printing functionality, remove any existing printers installed for the device in the past.

2. To search for printer name, run:

   # lpstat -a

3. Remove the printer:

   # lpadmin -x <printer_name>

4. If the device has scanning functionality, disable the SANE backend which provides the scanning support,for example, hpaio. You can achieve it by commenting out its name in the configuration file /etc/sane.d/dll.conf or in a specific file in directory /etc/sane.d/dll.d, or uninstall the scanning driver. For example, to disable hpaio scanning backend:

   # scanimage -L
   device `hpaio:/usb/laserjet_mfp_m129-m134?serial=XXXX' is a Hewlett-Packard laserjet_mfp_m129-m134 all-in-one
   device `airscan:e0:HP LaserJet MFP M130fw (E700D6)' is a eSCL HP LaserJet MFP M130fw (E700D6) ip=127.0.0.1
   
   # sudo sed -i 's,^\s*hpaio$,#hpaio,' /etc/sane.d/dll.d/hpaio

   As a result, scanning devices supported by the backend HPAIO are not visible in the list of scanners.

Using classic driver to support the device

Choosing a classic driver requires rejecting the printer model in the ipp-usb configuration.

1. Search for device model name:

   # sudo ipp-usb check
   Configuration files: OK
   IPP over USB devices:
    Num  Device              Vndr:Prod  Model
      1. Bus 001 Device 005  04a9:2823  "Canon MF440 Series"

2. Create a quirk for ipp-usb and use the name in the new quirk file in the /etc/ipp-usb/quirks directory. Note that the .conf suffix is required.

   # cat /etc/ipp-usb/quirks/canon.conf
   
   [Canon MF440 Series]
   blacklist = true

3. Restart the ipp-usb service:

   $ systemctl restart ipp-usb

   This quirk denies device’s support in ipp-usb, and classic drivers will work. The printer generated by ipp-usb is removed from the list of existing printers.