implicitclass printer stuck with cups-browsed-dest-printer option not found

Describe the bug

A Brother L2460DW printer discovered via cups-browsed.
When printing any document, the job is added to the queue but does not print.
After a minute the printer enters paused state, with status

"No destination host name supplied by cups-browsed for printer "Brother_HL_L2460DW", is cups-browsed running?"

I can work around it by temporarily modifying the printer's URI to use the ipp protocol instead. This allows me to print but the configuration is overwritten after a while, presumably by cups-browsed.

System Information:

• OS: Debian forky/sid amd64
  cups 2.4.16-1
  cups-browsed 1.28.17-7

Additional context

Logs repeatedly say

D [09/Mar/2026:23:25:58 -0400] [Job 23] Read cups-browsed-dest-printer option: Option not found

Partial debug logs when trying to print a test page from the CUPS web interface

 [09/Mar/2026:23:25:58 -0400] [Job 23] 4 filters for job:
D [09/Mar/2026:23:25:58 -0400] [Job 23] bannertopdf (application/vnd.cups-pdf-banner to application/pdf, cost 32)
D [09/Mar/2026:23:25:58 -0400] [Job 23] pdftopdf (application/pdf to application/vnd.cups-pdf, cost 66)
D [09/Mar/2026:23:25:58 -0400] [Job 23] - (application/vnd.cups-pdf to printer/Brother_HL_L2460DW/application/pdf, cost 0)
D [09/Mar/2026:23:25:58 -0400] [Job 23] - (printer/Brother_HL_L2460DW/application/pdf to printer/Brother_HL_L2460DW, cost 0)
D [09/Mar/2026:23:25:58 -0400] [Job 23] job-sheets=none,none
D [09/Mar/2026:23:25:58 -0400] [Job 23] argv[0]="Brother_HL_L2460DW"
D [09/Mar/2026:23:25:58 -0400] [Job 23] argv[1]="23"
D [09/Mar/2026:23:25:58 -0400] [Job 23] argv[2]="marcus"
D [09/Mar/2026:23:25:58 -0400] [Job 23] argv[3]="Test Page"
D [09/Mar/2026:23:25:58 -0400] [Job 23] argv[4]="1"
D [09/Mar/2026:23:25:58 -0400] [Job 23] argv[5]="job-uuid=urn:uuid:a2b87d3b-3ba4-379c-5941-79f89e3fc74f cups-browsed finishings=0 media=na_letter_8.5x11in number-up=1 orientation-requested=0 output-bin=face-down print-color-mode=monochrome print-quality=0 printer-resolution=1200x1200dpi sides=one-sided job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1773113154 time-at-processing=1773113158 ColorModel=Gray Duplex=None OutputBin=FaceDown PageSize=Letter"
D [09/Mar/2026:23:25:58 -0400] [Job 23] argv[6]="/var/spool/cups/d00023-001"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[0]="CUPS_CACHEDIR=/var/cache/cups"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[1]="CUPS_DATADIR=/usr/share/cups"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[2]="CUPS_DOCROOT=/usr/share/cups/doc-root"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[3]="CUPS_REQUESTROOT=/var/spool/cups"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[4]="CUPS_SERVERBIN=/usr/lib/cups"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[5]="CUPS_SERVERROOT=/etc/cups"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[6]="CUPS_STATEDIR=/run/cups"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[7]="HOME=/var/spool/cups/tmp"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[8]="PATH=/usr/lib/cups/filter:/usr/bin:/usr/sbin:/bin:/usr/bin"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[9]="SERVER_ADMIN=root@mini"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[10]="SOFTWARE=CUPS/2.4.16"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[11]="TMPDIR=/var/spool/cups/tmp"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[12]="USER=root"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[13]="CUPS_MAX_MESSAGE=2047"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[14]="CUPS_SERVER=/run/cups/cups.sock"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[15]="CUPS_ENCRYPTION=IfRequested"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[16]="IPP_PORT=631"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[17]="CHARSET=utf-8"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[18]="LANG=en_US.UTF-8"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[19]="PPD=/etc/cups/ppd/Brother_HL_L2460DW.ppd"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[20]="CONTENT_TYPE=application/vnd.cups-pdf-banner"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[21]="DEVICE_URI=implicitclass://Brother_HL_L2460DW/"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[22]="PRINTER_INFO=Brother_HL_L2460DW"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[23]="PRINTER_LOCATION="
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[24]="PRINTER=Brother_HL_L2460DW"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[25]="PRINTER_STATE_REASONS=none"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[26]="CUPS_FILETYPE=document"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[27]="FINAL_CONTENT_TYPE=application/pdf"
D [09/Mar/2026:23:25:58 -0400] [Job 23] envp[28]="AUTH_I****"
I [09/Mar/2026:23:25:58 -0400] [Job 23] Started filter /usr/lib/cups/filter/bannertopdf (PID 1798999)
I [09/Mar/2026:23:25:58 -0400] [Job 23] Started filter /usr/lib/cups/filter/pdftopdf (PID 1799000)
I [09/Mar/2026:23:25:58 -0400] [Job 23] Started backend /usr/lib/cups/backend/implicitclass (PID 1799001)
D [09/Mar/2026:23:25:58 -0400] cupsdMarkDirty(----S)
D [09/Mar/2026:23:25:58 -0400] cupsdSetBusyState: newbusy="Printing jobs and dirty files", busy="Dirty files"
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Job 23] pdftopdf: Last filter determined by the PPD: -; FINAL_CONTENT_TYPE: application/pdf => pdftopdf will log pages in page_log.
D [09/Mar/2026:23:25:58 -0400] [Job 23] PDF template file doesn\'t have form. It\'s okay.
D [09/Mar/2026:23:25:58 -0400] [Job 23] PID 1798999 (/usr/lib/cups/filter/bannertopdf) exited with no errors.
D [09/Mar/2026:23:25:58 -0400] cupsdSetBusyState: newbusy="Active clients, printing jobs, and dirty files", busy="Printing jobs and dirty files"
D [09/Mar/2026:23:25:58 -0400] [Client 29] Server address is "/run/cups/cups.sock".
D [09/Mar/2026:23:25:58 -0400] [Client 29] Accepted from localhost (Domain)
D [09/Mar/2026:23:25:58 -0400] [Client 29] Waiting for request.
D [09/Mar/2026:23:25:58 -0400] [Client 29] POST / HTTP/1.1
D [09/Mar/2026:23:25:58 -0400] cupsdSetBusyState: newbusy="Active clients, printing jobs, and dirty files", busy="Active clients, printing jobs, and dirty files"
D [09/Mar/2026:23:25:58 -0400] [Client 29] Read: status=200, state=6
D [09/Mar/2026:23:25:58 -0400] [Client 29] No authentication data provided.
D [09/Mar/2026:23:25:58 -0400] [Client 29] 2.0 Get-Printer-Attributes 1
D [09/Mar/2026:23:25:58 -0400] Get-Printer-Attributes ipp://localhost:631/printers/Brother_HL_L2460DW
D [09/Mar/2026:23:25:58 -0400] [Client 29] Returning IPP successful-ok for Get-Printer-Attributes (ipp://localhost:631/printers/Brother_HL_L2460DW) from localhost.
D [09/Mar/2026:23:25:58 -0400] [Client 29] Content-Length: 1127
D [09/Mar/2026:23:25:58 -0400] [Client 29] cupsdSendHeader: code=200, type="application/ipp", auth_type=0
D [09/Mar/2026:23:25:58 -0400] [Client 29] con->http=0x55983a0cd090
D [09/Mar/2026:23:25:58 -0400] [Client 29] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=1127, response=0x55983a12d520(IPP_STATE_DATA), pipe_pid=0, file=-1
D [09/Mar/2026:23:25:58 -0400] [Client 29] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [09/Mar/2026:23:25:58 -0400] [Client 29] bytes=0, http_state=0, data_remaining=1127
D [09/Mar/2026:23:25:58 -0400] [Client 29] Flushing write buffer.
D [09/Mar/2026:23:25:58 -0400] [Client 29] New state is HTTP_STATE_WAITING
D [09/Mar/2026:23:25:58 -0400] [Client 29] Waiting for request.
D [09/Mar/2026:23:25:58 -0400] cupsdSetBusyState: newbusy="Printing jobs and dirty files", busy="Active clients, printing jobs, and dirty files"
D [09/Mar/2026:23:25:58 -0400] [Job 23] PDF interactive form and annotation flattening done via QPDF
D [09/Mar/2026:23:25:58 -0400] [Job 23] pdftopdf: \"print-scaling\" IPP attribute: auto
D [09/Mar/2026:23:25:58 -0400] [Job 23] pdftopdf: Print scaling mode: Do not scale, center, crop if needed
D [09/Mar/2026:23:25:58 -0400] [Job 23] After Cropping: 612.000000 792.000000 612.000000 792.000000
D [09/Mar/2026:23:25:58 -0400] [Job 23] PAGE: 1 1
D [09/Mar/2026:23:25:58 -0400] cupsdMarkDirty(----S)
D [09/Mar/2026:23:25:58 -0400] cupsdSetBusyState: newbusy="Printing jobs and dirty files", busy="Printing jobs and dirty files"
D [09/Mar/2026:23:25:58 -0400] cupsdMarkDirty(---J-)
D [09/Mar/2026:23:25:58 -0400] cupsdSetBusyState: newbusy="Printing jobs and dirty files", busy="Printing jobs and dirty files"
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Notifier] state=3
D [09/Mar/2026:23:25:58 -0400] [Job 23] Read cups-browsed-dest-printer option: Option not found
...
D [09/Mar/2026:23:26:58 -0400] [Job 23] PID 1799001 (/usr/lib/cups/backend/implicitclass) stopped with status 4.
D [09/Mar/2026:23:26:58 -0400] [Job 23] PID 1799000 (/usr/lib/cups/filter/pdftopdf) did not catch or ignore signal 13.
W [09/Mar/2026:23:26:58 -0400] [Job 23] Backend implicitclass returned status 4 (stop printer)
...
 [09/Mar/2026:23:26:58 -0400] [Job 23] printer-state=5(stopped)
D [09/Mar/2026:23:26:58 -0400] [Job 23] printer-state-message="No destination host name supplied by cups-browsed for printer "Brother_HL_L2460DW", is cups-browsed running?"
D [09/Mar/2026:23:26:58 -0400] [Job 23] printer-state-reasons=paused

Start at the implicitclass backend shown in the logs and inspect how it reads the cups-browsed-dest-printer option and obtains the destination host. Reproduce the Brother_HL_L2460DW failure with cups-browsed running, then verify that queued jobs reach the discovered printer without changing the URI to ipp. No source file or test is named in the issue.