Same problem here with Pixma IP4500. Canon .deb packages refuse to install due to libcupsys2 changed to libcups2, the package gets in "broken" state. When --force-depends, install OK, but printer doesn't popup in the printers.


root@paul-desktop2:/home/paul/Desktop# dpkg -I cnijfilter-common_2.80-1_i386.deb
 new debian package, version 2.0.
 size 41932 bytes: control archive= 729 bytes.
     431 bytes,    11 lines      control              
     537 bytes,     7 lines      md5sums              
 Package: cnijfilter-common
 Version: 2.80-1
 Section: graphics
 Priority: optional
 Architecture: i386
 Depends: libc6 (>= 2.3.4-1), libcupsys2 (>= 1.2.1), libpopt0 (>= 1.7)
 Installed-Size: 124
 Maintainer: Canon Inc. <email address hidden>
 Description: IJ Printer Driver for Linux.
  This IJ Printer Driver provides printing functions for Canon Inkjet
  printers operating under the CUPS (Common UNIX Printing System) environment.

root@paul-desktop2:/home/paul/Desktop# dpkg -i cnijfilter-common_2.80-1_i386.deb
Selecting previously deselected package cnijfilter-common.
(Reading database ... 115625 files and directories currently installed.)
Unpacking cnijfilter-common (from cnijfilter-common_2.80-1_i386.deb) ...
dpkg: dependency problems prevent configuration of cnijfilter-common:
 cnijfilter-common depends on libcupsys2 (>= 1.2.1); however:
  Package libcupsys2 is not installed.
dpkg: error processing cnijfilter-common (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 cnijfilter-common

root@paul-desktop2:/home/paul/Desktop# dpkg -i --force-depends cnijfilter-common_2.80-1_i386.deb
(Reading database ... 115633 files and directories currently installed.)
Preparing to replace cnijfilter-common 2.80-1 (using cnijfilter-common_2.80-1_i386.deb) ...
Unpacking replacement cnijfilter-common ...
dpkg: cnijfilter-common: dependency problems, but configuring anyway as you requested:
 cnijfilter-common depends on libcupsys2 (>= 1.2.1); however:
  Package libcupsys2 is not installed.
Setting up cnijfilter-common (2.80-1) ...

#################
root@paul-desktop2:/home/paul/Desktop# dpkg -i cnijfilter-ip4500series_2.80-1_i386.deb 
Selecting previously deselected package cnijfilter-ip4500series.
(Reading database ... 115633 files and directories currently installed.)
Unpacking cnijfilter-ip4500series (from cnijfilter-ip4500series_2.80-1_i386.deb) ...
dpkg: dependency problems prevent configuration of cnijfilter-ip4500series:
 cnijfilter-ip4500series depends on libcupsys2 (>= 1.2.1); however:
  Package libcupsys2 is not installed.
dpkg: error processing cnijfilter-ip4500series (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 cnijfilter-ip4500series
root@paul-desktop2:/home/paul/Desktop# dpkg -i --force-depends cnijfilter-ip4500series_2.80-1_i386.deb 
(Reading database ... 115816 files and directories currently installed.)
Preparing to replace cnijfilter-ip4500series 2.80-1 (using cnijfilter-ip4500series_2.80-1_i386.deb) ...
Unpacking replacement cnijfilter-ip4500series ...
dpkg: cnijfilter-ip4500series: dependency problems, but configuring anyway as you requested:
 cnijfilter-ip4500series depends on libcupsys2 (>= 1.2.1); however:
  Package libcupsys2 is not installed.
Setting up cnijfilter-ip4500series (2.80-1) ...

Processing triggers for libc-bin ...
ldconfig deferred processing now taking place
root@paul-desktop2:/home/paul/Desktop#