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ed@s2air-twslow:/var/log/cups> egrep -iA2 "error|filter" /var/log/cups/error_log
I [11/Jan/2025:10:39:20 +0700] Loaded MIME database from "/usr/share/cups/mime" and "/etc/cups": 78 types, 114 filters...
D [11/Jan/2025:10:39:20 +0700] Loading printer HL1210W...
D [11/Jan/2025:10:39:20 +0700] cupsdMarkDirty(P----)
--
D [11/Jan/2025:10:39:20 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=709, response=0x55dc6a30a620(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:20 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:20 +0700] [Client 1] bytes=0, http_state=0, data_remaining=709
--
D [11/Jan/2025:10:39:20 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=75, response=0x55dc6a309a10(IPP_STATE_DATA), pipe_pid=0, fil
e=-1
D [11/Jan/2025:10:39:20 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:20 +0700] [Client 1] bytes=0, http_state=0, data_remaining=75
--
D [11/Jan/2025:10:39:36 +0700] [Client 2] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=1442, response=0x55dc6a307890(IPP_STATE_DATA), pipe_pid=0, f
ile=-1
D [11/Jan/2025:10:39:36 +0700] [Client 2] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:36 +0700] [Client 2] bytes=0, http_state=0, data_remaining=1442
--
D [11/Jan/2025:10:39:36 +0700] [Client 2] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=72, response=0x55dc6a305e70(IPP_STATE_DATA), pipe_pid=0, fil
e=-1
D [11/Jan/2025:10:39:36 +0700] [Client 2] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:36 +0700] [Client 2] bytes=0, http_state=0, data_remaining=72
--
D [11/Jan/2025:10:39:36 +0700] [Client 2] HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
D [11/Jan/2025:10:39:36 +0700] [Client 2] Closing connection.
D [11/Jan/2025:10:39:36 +0700] cupsdSetBusyState: newbusy="Dirty files", busy="Dirty files"
--
D [11/Jan/2025:10:39:39 +0700] [Client 3] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=1438, response=0x55dc6a305c70(IPP_STATE_DATA), pipe_pid=0, f
ile=-1
D [11/Jan/2025:10:39:39 +0700] [Client 3] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 3] bytes=0, http_state=0, data_remaining=1438
--
D [11/Jan/2025:10:39:39 +0700] [Client 3] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=1438, response=0x55dc6a318430(IPP_STATE_DATA), pipe_pid=0, f
ile=-1
D [11/Jan/2025:10:39:39 +0700] [Client 3] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 3] bytes=0, http_state=0, data_remaining=1438
--
D [11/Jan/2025:10:39:39 +0700] [Client 3] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=9708, response=0x55dc6a318850(IPP_STATE_DATA), pipe_pid=0, f
ile=-1
D [11/Jan/2025:10:39:39 +0700] [Client 3] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 3] bytes=0, http_state=0, data_remaining=9708
--
D [11/Jan/2025:10:39:39 +0700] [Client 3] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=197, response=0x55dc6a308600(IPP_STATE_IDLE), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:39 +0700] [Client 3] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 3] bytes=0, http_state=0, data_remaining=197
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] 3 filters for job:
D [11/Jan/2025:10:39:39 +0700] [Job 16] gstopdf (application/postscript to application/pdf, cost 0)
D [11/Jan/2025:10:39:39 +0700] [Job 16] pdftopdf (application/pdf to application/vnd.cups-pdf, cost 66)
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[8]="PATH=/usr/lib/cups/filter:/usr/bin:/usr/sbin:/bin:/usr/bin"
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[9]="SERVER_ADMIN=root@s2air-twslow"
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[10]="SOFTWARE=CUPS/2.4.11"
--
I [11/Jan/2025:10:39:39 +0700] [Job 16] Started filter /usr/lib/cups/filter/gstopdf (PID 15574)
I [11/Jan/2025:10:39:39 +0700] [Job 16] Started filter /usr/lib/cups/filter/pdftopdf (PID 15575)
I [11/Jan/2025:10:39:39 +0700] [Job 16] Started filter /usr/lib/cups/filter/brother_lpdwrapper_HL1210W (PID 15576)
I [11/Jan/2025:10:39:39 +0700] [Job 16] Started backend /usr/lib/cups/backend/lpd (PID 15577)
D [11/Jan/2025:10:39:39 +0700] cupsdMarkDirty(----S)
--
D [11/Jan/2025:10:39:39 +0700] [Client 3] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=167, response=0x55dc6a318650(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:39 +0700] [Client 3] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 3] bytes=0, http_state=0, data_remaining=167
--
D [11/Jan/2025:10:39:39 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=378, response=0x55dc6a308600(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:39 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 1] bytes=0, http_state=0, data_remaining=378
--
D [11/Jan/2025:10:39:39 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=709, response=0x55dc6a318650(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:39 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 1] bytes=0, http_state=0, data_remaining=709
--
D [11/Jan/2025:10:39:39 +0700] [Client 3] HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
D [11/Jan/2025:10:39:39 +0700] [Client 3] Closing connection.
D [11/Jan/2025:10:39:39 +0700] cupsdSetBusyState: newbusy="Printing jobs and dirty files", busy="Printing jobs and dirty files"
--
D [11/Jan/2025:10:39:39 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=709, response=0x55dc6a39c760(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:39 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 1] bytes=0, http_state=0, data_remaining=709
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] /usr/lib/cups/filter/brother_lpdwrapper_HL1210W: line 103: /opt/brother/Printers/HL1210W//cupswrapper/brcupsconfig4: cannot execute: required file not found
D [11/Jan/2025:10:39:39 +0700] [Job 16] //opt/brother/Printers/HL1210W//lpd/filter_HL1210W: line 60: /opt/brother/Printers/HL1210W/lpd/rawtobr3: cannot execute: required file not found
D [11/Jan/2025:10:39:39 +0700] [Job 16] STATE: +connecting-to-device
D [11/Jan/2025:10:39:39 +0700] cupsdMarkDirty(---J-)
--
D [11/Jan/2025:10:39:39 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=709, response=0x55dc6a317f20(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:39 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 1] bytes=0, http_state=0, data_remaining=709
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] pdftopdf: Last filter determined by the PPD: brother_lpdwrapper_HL1210W; FINAL_CONTENT_TYPE: application/vnd.cups-pdf => pdftopdf will not log pages in page_log.
D [11/Jan/2025:10:39:39 +0700] [Client 1] POST / HTTP/1.1
D [11/Jan/2025:10:39:39 +0700] cupsdSetBusyState: newbusy="Active clients, printing jobs, and dirty files", busy="Printing jobs and dirty files"
--
D [11/Jan/2025:10:39:39 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=709, response=0x55dc6a318650(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:39 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:39 +0700] [Client 1] bytes=0, http_state=0, data_remaining=709
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] Ghostscript command line: gs -dQUIET -dSAFER -dNOPAUSE -dBATCH -dNOINTERPOLATE -dNOMEDIAATTRS -sstdout=%stderr -sOutputFile=%stdout -sDEVICE=pdfwrite -dDoNumCopies -dCompatibi
lityLevel=1.3 -dAutoRotatePages=/None -dAutoFilterColorImages=false -dNOPLATFONTS -dColorImageFilter=/FlateEncode -dPDFSETTINGS=/default -dColorConversionStrategy=/LeaveColorUnchanged -r2400x2400 -dDEVICEWIDTHPOINTS
=595 -dDEVICEHEIGHTPOINTS=842 -I/usr/share/cups/fonts -c -f -_
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[0]=\"OUTFORMAT=PDF\"
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[1]=\"PRINTER_LOCATION=\"
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[27]=\"PATH=/usr/lib/cups/filter:/usr/bin:/usr/sbin:/bin:/usr/bin\"
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[28]=\"CUPS_REQUESTROOT=/var/spool/cups\"
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[29]=\"CONTENT_TYPE=application/postscript\"
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] envp[32]=\"_=/usr/lib/cups/filter/gstoraster\"
D [11/Jan/2025:10:39:39 +0700] [Job 16] PID 15574 (/usr/lib/cups/filter/gstopdf) exited with no errors.
D [11/Jan/2025:10:39:39 +0700] [Job 16] PDF interactive form and annotation flattening done via QPDF
D [11/Jan/2025:10:39:39 +0700] [Job 16] pdftopdf: \"print-scaling\" IPP attribute: auto
--
D [11/Jan/2025:10:39:39 +0700] [Job 16] PID 15575 (/usr/lib/cups/filter/pdftopdf) exited with no errors.
D [11/Jan/2025:10:39:40 +0700] [Job 16] PID 15576 (/usr/lib/cups/filter/brother_lpdwrapper_HL1210W) exited with no errors.
D [11/Jan/2025:10:39:40 +0700] Expiring subscriptions...
D [11/Jan/2025:10:39:40 +0700] [Job 16] PID 15577 (/usr/lib/cups/backend/lpd) exited with no errors.
D [11/Jan/2025:10:39:40 +0700] [Job 16] time-at-completed=1736566780
D [11/Jan/2025:10:39:40 +0700] cupsdMarkDirty(----S)
--
D [11/Jan/2025:10:39:40 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=709, response=0x55dc6a3137f0(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:40 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:40 +0700] [Client 1] bytes=0, http_state=0, data_remaining=709
--
D [11/Jan/2025:10:39:40 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=75, response=0x55dc6a317f20(IPP_STATE_DATA), pipe_pid=0, fil
e=-1
D [11/Jan/2025:10:39:40 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:40 +0700] [Client 1] bytes=0, http_state=0, data_remaining=75
--
D [11/Jan/2025:10:39:40 +0700] [Client 1] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=709, response=0x55dc6a3137f0(IPP_STATE_DATA), pipe_pid=0, fi
le=-1
D [11/Jan/2025:10:39:40 +0700] [Client 1] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:40 +0700] [Client 1] bytes=0, http_state=0, data_remaining=709
--
D [11/Jan/2025:10:39:41 +0700] [Client 4] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=1442, response=0x55dc6a30c050(IPP_STATE_DATA), pipe_pid=0, f
ile=-1
D [11/Jan/2025:10:39:41 +0700] [Client 4] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:41 +0700] [Client 4] bytes=0, http_state=0, data_remaining=1442
--
D [11/Jan/2025:10:39:41 +0700] [Client 4] cupsdWriteClient error=0, used=0, state=HTTP_STATE_POST_SEND, data_encoding=HTTP_ENCODING_LENGTH, data_remaining=72, response=0x55dc6a317f20(IPP_STATE_DATA), pipe_pid=0, fil
e=-1
D [11/Jan/2025:10:39:41 +0700] [Client 4] Writing IPP response, ipp_state=IPP_STATE_DATA, old wused=0, new wused=0
D [11/Jan/2025:10:39:41 +0700] [Client 4] bytes=0, http_state=0, data_remaining=72
--
D [11/Jan/2025:10:39:41 +0700] [Client 4] HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
D [11/Jan/2025:10:39:41 +0700] [Client 4] Closing connection.
D [11/Jan/2025:10:39:41 +0700] cupsdSetBusyState: newbusy="Dirty files", busy="Dirty files"
ed@s2air-twslow:/var/log/cups>
````Preformatted text`