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Bug#1004734: "usblp0: removed" when printing via USB on Canon LBP-810

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  Bug#1004734: "usblp0: removed" when printing via USB on Canon LBP-810 Yvan Masson <yvan@masson-informatique.fr> - 2022-02-01 13:40 +0100
    Bug#1004734: Printing with parallel port also does not work Yvan Masson <yvan@masson-informatique.fr> - 2022-02-08 10:00 +0100

#1091628 — Bug#1004734: "usblp0: removed" when printing via USB on Canon LBP-810

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Package: cups
X-Debbugs-Cc: yvan@masson-informatique.fr
Version: 2.3.3op2-7
Severity: normal

Dear Maintainers,

I tried to print on an old Canon LBP-810 with Debian testing, connected 
via USB. This printer is known to be working with parallel port.

The printer is properly detected:

févr. 01 12:05:29 e7440 kernel: usb 2-2: new full-speed USB device 
number 5 using xhci_hcd
févr. 01 12:05:29 e7440 kernel: usb 2-2: New USB device found, 
idVendor=04a9, idProduct=260a, bcdDevice= 1.00
févr. 01 12:05:29 e7440 kernel: usb 2-2: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
févr. 01 12:05:29 e7440 kernel: usb 2-2: Product: Canon CAPT USB Printer
févr. 01 12:05:29 e7440 kernel: usb 2-2: Manufacturer: Canon
févr. 01 12:05:29 e7440 kernel: usb 2-2: SerialNumber: 541868YO
févr. 01 12:05:29 e7440 kernel: usblp 2-2:1.0: usblp0: USB Bidirectional 
printer dev 5 if 0 alt 0 proto 2 vid 0x04A9 pid 0x260A

It is then properly added to the CUPS system, but when I try to print 
something, the following appears in kernel logs:

févr. 01 12:05:34 e7440 kernel: usblp0: removed
févr. 01 12:05:34 e7440 kernel: usblp 2-2:1.0: usblp0: USB Bidirectional 
printer dev 5 if 0 alt 0 proto 2 vid 0x04A9 pid 0x260A
févr. 01 12:05:35 e7440 kernel: usblp0: removed

And the printer does not print.

I already tried settings CUPS options "usb-unidir-default" and 
"usb-no-reattach-default", as suggested in [1], without luck.

Please apologize if this issue does not belong to cups.

Regards,
Yvan

1. https://bugzilla.redhat.com/show_bug.cgi?id=873123


-- System Information:
Debian Release: bookworm/sid
   APT prefers testing
   APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.15.0-3-amd64 (SMP w/4 CPU threads)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE 
not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages cups depends on:
ii  cups-client            2.3.3op2-7
ii  cups-common            2.3.3op2-7
ii  cups-core-drivers      2.3.3op2-7
ii  cups-daemon            2.3.3op2-7
ii  cups-filters           1.28.11-2
ii  cups-ppdc              2.3.3op2-7
ii  cups-server-common     2.3.3op2-7
ii  debconf [debconf-2.0]  1.5.79
ii  ghostscript            9.55.0~dfsg-3
ii  libavahi-client3       0.8-5
ii  libavahi-common3       0.8-5
ii  libc6                  2.33-5
ii  libcups2               2.3.3op2-7
ii  libgcc-s1              11.2.0-14
ii  libstdc++6             11.2.0-14
ii  libusb-1.0-0           2:1.0.24-3
ii  poppler-utils          20.09.0-3.1
ii  procps                 2:3.3.17-6

Versions of packages cups recommends:
ii  avahi-daemon  0.8-5
ii  colord        1.4.5-3

Versions of packages cups suggests:
ii  cups-bsd                                   2.3.3op2-7
ii  foomatic-db-compressed-ppds [foomatic-db]  20210824-1
ii  printer-driver-cups-pdf [cups-pdf]         3.0.1-13
ii  smbclient                                  2:4.13.14+dfsg-1+b1
ii  udev                                       250.3-2

-- debconf information:
   cupsys/raw-print: true
   cupsys/backend: lpd, socket, usb, snmp, dnssd

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#1092417 — Bug#1004734: Printing with parallel port also does not work

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Hi,

I said in my initial bug report that the printer was working using 
parallel port but I was wrong, sorry: I have been told that it was 
working but I just tested and it is not.

What is stranged is that it worked "once" with USB connection, first 
time I tried.

I also just tested the printer with a Windows computer (Windows 7 is the 
last supported version), and it works perfectly, both with USB and 
parallel port.

Regards,
Yvan

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