CUPS - setup and usage?
dickson
iswslui at ust.hk
Wed Jan 26 19:35:31 PST 2011
> dickson wrote:
>
> >> dickson wrote:
> >>
> >> > Dear all,
> >> >
> >> > Please help to verify my understanding about usage and setup of CUPS in
> >> > Red Hat (Linux). Thanks.
> >> >
> >> > Installed package
> >> > ---------------------
> >> > hal-cups-utils-0.5.2-8
> >> > libgnomecups-0.1.12-5
> >> > cups-libs-1.1.22-0.rc1.9.10
> >> > cups-1.1.22-0.rc1.9
> >> > cups-1.1.22-0.rc1.9.10
> >> >
> >> > If I setup a Epson dot matrix printer "abc" in CUPS with filter
> >> > "zn-TW",
> >> >
> >> > 1. a printer set in CUPS can accept any document type (pdf, text with
> >> > Chinese characters) because CUPS will automatically convert it to ps
> >> > format. Is it right?
> >> >
> >> > 2. Or I must convert these file to ps first and then sent to that
> >> > printer?
> >> >
> >> > 3. under /usr/lib/cups/filter/, a lot of program (texttops, ...etc) are
> >> > there. What is "option" when use these command? As I try to convert a
> >> > UTF-8 Chinese character text file to ps, ps is generated but only have
> >> > English character.
> >>
> >> I think you should upgrade at least to CUPS 1.3.x.
> >>
> >> Then it should be a matter of which font set you use for the texttops
> >> filter in your installation. In case you have questions then, I think I
> >> could give you some hints.
> >>
> >> Helge
> >>
> >
> > Thanks for your help, Helge.
> > I install CUPS 1.4.6 and then try to print the pdf document directly. In
> > version 1.4.6, there is no place/area for me to set the locale-filter.
> > Does it mean that there is no need to manually set the filter. (Because in
> > 1.1.2, I can set this printer queue to use zh_TW, the other use zh_CN) For
> > 1.4.6 CUPS, the print job still fails because the process "pdftops" fails
> > during printing. The message is in the error_log of CUPS as follows:
> >
> > *****************************************************************
> > D [25/Jan/2011:15:59:41 +0800] [Job 50] renderer PID kid4=21613
> > D [25/Jan/2011:15:59:41 +0800] [Job 50] renderer command: gs -q
> > -dPARANOIDSAFER -dBATCH -dNOPAUSE -sOutputFile=- -sDEVICE=omni
> > -sDeviceName=Epson_LQ_1050___360_dpi_ -sproperties="
> > Form=iso_a3_297.00x420.00mm InputTray=Tray-2 media=MEDIA_PLAIN
> > Resolution=360x180 printmode=PRINT_MODE_1_ANY dither=dither=DITHER_LEVEL
> > Rotation=Portrait" - D [25/Jan/2011:15:59:41 +0800] [Job 50] D
> > [25/Jan/2011:15:59:41 +0800] [Job 50] Closing renderer D
> > [25/Jan/2011:15:59:41 +0800] [Job 50] foomatic-gswrapper: gs
> > '-dPARANOIDSAFER' '-dBATCH' '-dNOPAUSE' '-sOutputFile=/dev/fd/3'
> > '-sDEVICE=omni' '-sDeviceName=Epson_LQ_1050___360_dpi_' '-sproperties=
> > Form=iso_a3_297.00x420.00mm InputTray=Tray-2 media=MEDIA_PLAIN
> > Resolution=360x180 printmode=PRINT_MODE_1_ANY dither=dither=DITHER_LEVEL
> > Rotation=Portrait' '/dev/fd/0' 3>&1 1>&2 D [25/Jan/2011:15:59:42 +0800]
> > [Job 50] GNU Ghostscript 7.07 (2003-05-17)
> > D [25/Jan/2011:15:59:42 +0800] [Job 50] Copyright (C) 2003 artofcode LLC,
> > Benicia, CA. All rights reserved. D [25/Jan/2011:15:59:42 +0800] [Job 50]
> > This software comes with NO WARRANTY: see the file PUBLIC for details. D
> > [25/Jan/2011:15:59:42 +0800] [Job 50] Loading NimbusRomNo9L-Regu font from
> > /usr/share/fonts/default/Type1/n021003l.pfb... 2492060 1116166 1662616
> > 356238 0 done. D [25/Jan/2011:15:59:42 +0800] [Job 50] Using
> > NimbusRomanNo9L-Regu font for NimbusRomNo9L-Regu. D [25/Jan/2011:15:59:42
> > +0800] [Job 50] Loading NimbusSanL-Regu font from
> > /usr/share/fonts/default/Type1/n019003l.pfb... 2867020 1460804 1682712
> > 367446 0 done. D [25/Jan/2011:15:59:42 +0800] [Job 50] Using
> > NimbusSansL-Regu font for NimbusSanL-Regu. D [25/Jan/2011:15:59:43 +0800]
> > PID 21606 (/usr/lib/cups/filter/foomatic-rip) stopped with status 3! D
> > [25/Jan/2011:15:59:43 +0800] [Job 50] Error: /undefined in Unrecoverable D
> > [25/Jan/2011:15:59:43 +0800] [Job 50] Operand stack: D
> > [25/Jan/2011:15:59:43 +0800] [Job 50] D [25/Jan/2011:15:59:43 +0800] [Job
> > 50] Execution stack:
> > D [25/Jan/2011:15:59:43 +0800] [Job 50] %interp_exit .runexec2
> > --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push
> > --nostringval-- --nostringval-- --nostringval-- false 1
> > %stopped_push 1 3 %oparray_pop 1 3 %oparray_pop 1 3
> > %oparray_pop 1 3 %oparray_pop .runexec2 --nostringval--
> > --nostringval-- --nostringval-- 2 %stopped_push --nostringval--
> > --nostringval-- --nostringval-- D [25/Jan/2011:15:59:43 +0800] [Job 50]
> > Dictionary stack:
> > D [25/Jan/2011:15:59:43 +0800] [Job 50] --dict:1073/1123(ro)(G)--
> > --dict:0/20(G)-- --dict:98/200(L)-- D [25/Jan/2011:15:59:43 +0800] [Job
> > 50] Current allocation mode is local D [25/Jan/2011:15:59:43 +0800] [Job
> > 50] Last OS error: 2 D [25/Jan/2011:15:59:43 +0800] [Job 50] GNU
> > Ghostscript 7.07: Unrecoverable error, exit code 1 D [25/Jan/2011:15:59:43
> > +0800] [Job 50] renderer return value: 1 D [25/Jan/2011:15:59:43 +0800]
> > [Job 50] renderer received signal: 1 D [25/Jan/2011:15:59:43 +0800] [Job
> > 50] Process dying with "Possible error on renderer command line or
> > PostScript error. Check options.", exit stat: 3 D [25/Jan/2011:15:59:43
> > +0800] [Job 50] Possible error on renderer command line or PostScript
> > error. Check options. D [25/Jan/2011:15:59:43 +0800] [Job 50] tail process
> > done writing data to STDOUT D [25/Jan/2011:15:59:43 +0800] [Job 50] KID4
> > finished D [25/Jan/2011:15:59:43 +0800] [Job 50] KID3 exited with status 3
> > D [25/Jan/2011:15:59:43 +0800] [Job 50] Renderer exit stat: 3 D
> > [25/Jan/2011:15:59:43 +0800] [Job 50] Renderer process finished D
> > [25/Jan/2011:15:59:43 +0800] [Job 50] Killing process 21612 (KID3) D
> > [25/Jan/2011:15:59:43 +0800] [Job 50] Process dying with "Error closing
> > renderer", exit stat: 3 D [25/Jan/2011:15:59:43 +0800] [Job 50] Error
> > closing renderer
> > *****************************************************************
> >
> >
> > I am not sure that the failure reason is related to "Ghostscript" version
> > or missing Chinese fonts, or others. Anyone know why?
> >
> > Thanks a lot.
>
> From the excerpt of your error_log, I conclude that one of the filters
> preceding the pstops filter (presumably the pdftops filter) failed and wrote
> an error message to standard output (which probably started with the line
>
> Unrecoverable error ...)
>
> which in turn caused Ghostscript to complain when interpreting this as
> PostScript input.
>
> Please do the following:
>
> (1) post the error log from the beginning of that (or a similarly failing)
> job, beginning with a line containing "autotyping file" or the like.
>
> (2) post (an URL to) the (or a similarly failing) PDF for me to look into,
>
> I need this information to dig more deeply into your issue.
>
> Helge
>
>
>
-----------------------------------------------------------------------------
27-Jan-2011
Dear Helge,
Thanks for your help.
(1) The following log is the complete log from cups
*************************************************************************
D [27/Jan/2011:11:26:22 +0800] cupsdAcceptClient: 9 from localhost:631 (IPv4)
D [27/Jan/2011:11:26:22 +0800] cupsdReadClient: 9 POST / HTTP/1.1
D [27/Jan/2011:11:26:22 +0800] cupsdSetBusyState: Active clients
D [27/Jan/2011:11:26:22 +0800] cupsdAuthorize: No authentication data provided.
D [27/Jan/2011:11:26:22 +0800] cupsdReadClient: 9 1.1 Get-Printer-Attributes 1
D [27/Jan/2011:11:26:22 +0800] Get-Printer-Attributes ipp://localhost:631/printers/isp1_tw
D [27/Jan/2011:11:26:22 +0800] Returning IPP successful-ok for Get-Printer-Attributes (ipp://localhost:631/printers/isp1_tw) from localhost
D [27/Jan/2011:11:26:22 +0800] cupsdSetBusyState: Not busy
D [27/Jan/2011:11:26:22 +0800] cupsdReadClient: 9 POST /printers/isp1_tw HTTP/1.1
D [27/Jan/2011:11:26:22 +0800] cupsdSetBusyState: Active clients
D [27/Jan/2011:11:26:22 +0800] cupsdAuthorize: No authentication data provided.
D [27/Jan/2011:11:26:22 +0800] cupsdReadClient: 9 1.1 Create-Job 1
D [27/Jan/2011:11:26:22 +0800] Create-Job ipp://localhost:631/printers/isp1_tw
D [27/Jan/2011:11:26:22 +0800] cupsdMarkDirty(----J-)
D [27/Jan/2011:11:26:22 +0800] cupsdSetBusyState: Active clients and dirty files
D [27/Jan/2011:11:26:22 +0800] add_job: requesting-user-name="root"
I [27/Jan/2011:11:26:22 +0800] [Job 64] Adding start banner page "none".
D [27/Jan/2011:11:26:22 +0800] Discarding unused job-created event...
I [27/Jan/2011:11:26:22 +0800] [Job 64] Queued on "isp1_tw" by "root".
D [27/Jan/2011:11:26:22 +0800] Returning IPP successful-ok for Create-Job (ipp://localhost:631/printers/isp1_tw) from localhost
D [27/Jan/2011:11:26:22 +0800] cupsdSetBusyState: Dirty files
D [27/Jan/2011:11:26:22 +0800] cupsdReadClient: 9 POST /printers/isp1_tw HTTP/1.1
D [27/Jan/2011:11:26:22 +0800] cupsdSetBusyState: Active clients and dirty files
D [27/Jan/2011:11:26:22 +0800] cupsdAuthorize: No authentication data provided.
D [27/Jan/2011:11:26:22 +0800] cupsdReadClient: 9 1.1 Send-Document 1
D [27/Jan/2011:11:26:23 +0800] Send-Document ipp://localhost:631/printers/isp1_tw
D [27/Jan/2011:11:26:23 +0800] cupsdIsAuthorized: requesting-user-name="root"
D [27/Jan/2011:11:26:23 +0800] [Job 64] Auto-typing file...
D [27/Jan/2011:11:26:23 +0800] [Job 64] Request file type is application/pdf.
D [27/Jan/2011:11:26:23 +0800] cupsdMarkDirty(----J-)
I [27/Jan/2011:11:26:23 +0800] [Job 64] File of type application/pdf queued by "root".
I [27/Jan/2011:11:26:23 +0800] [Job 64] Adding end banner page "none".
D [27/Jan/2011:11:26:23 +0800] cupsdMarkDirty(----J-)
D [27/Jan/2011:11:26:23 +0800] cupsdMarkDirty(----J-)
D [27/Jan/2011:11:26:23 +0800] cupsdSetBusyState: Active clients, printing jobs, and dirty files
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:23 +0800] [Job 64] job-sheets=none,none
D [27/Jan/2011:11:26:23 +0800] [Job 64] argv[0]="isp1_tw"
D [27/Jan/2011:11:26:23 +0800] [Job 64] argv[1]="64"
D [27/Jan/2011:11:26:23 +0800] [Job 64] argv[2]="root"
D [27/Jan/2011:11:26:23 +0800] [Job 64] argv[3]="BPVD-V19a-AE.pdf"
D [27/Jan/2011:11:26:23 +0800] [Job 64] argv[4]="1"
D [27/Jan/2011:11:26:23 +0800] [Job 64] argv[5]="finishings=3 number-up=1 job-uuid=urn:uuid:35305ab1-a962-3cf7-756e-c828a0e5ea37 job-originating-host-name=localhost time-at-creation=1296098782 time-at-processing=1296098783 AP_D_InputSlot="
D [27/Jan/2011:11:26:23 +0800] [Job 64] argv[6]="/var/spool/cups/d00064-001"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[0]="CUPS_CACHEDIR=/var/cache/cups"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[1]="CUPS_DATADIR=/usr/share/cups"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[2]="CUPS_DOCROOT=/usr/share/doc/cups"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[3]="CUPS_FONTPATH=/usr/share/cups/fonts"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[4]="CUPS_REQUESTROOT=/var/spool/cups"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[5]="CUPS_SERVERBIN=/usr/lib/cups"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[6]="CUPS_SERVERROOT=/etc/cups"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[7]="CUPS_STATEDIR=/var/run/cups"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[8]="HOME=/var/spool/cups/tmp"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[9]="PATH=/usr/lib/cups/filter:/usr/bin:/usr/sbin:/bin:/usr/bin"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[10]="SERVER_ADMIN=root at isz195.ust.hk"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[11]="SOFTWARE=CUPS/1.4.6"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[12]="TMPDIR=/var/spool/cups/tmp"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[13]="TZ=Asia/Hong_Kong"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[14]="USER=root"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[15]="CUPS_SERVER=localhost"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[16]="CUPS_ENCRYPTION=IfRequested"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[17]="IPP_PORT=631"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[18]="CHARSET=utf-8"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[19]="LANG=en_US.UTF-8"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[20]="PPD=/etc/cups/ppd/isp1_tw.ppd"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[21]="RIP_MAX_CACHE=8m"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[22]="CONTENT_TYPE=application/pdf"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[23]="DEVICE_URI=socket://isp1.ust.hk:9100"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[24]="PRINTER_INFO=Created by redhat-config-printer 0.6.x"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[25]="PRINTER_LOCATION="
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[26]="PRINTER=isp1_tw"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[27]="CUPS_FILETYPE=document"
D [27/Jan/2011:11:26:23 +0800] [Job 64] envp[28]="FINAL_CONTENT_TYPE=printer/isp1_tw"
I [27/Jan/2011:11:26:23 +0800] [Job 64] Started filter /usr/lib/cups/filter/pdftops (PID 15994)
I [27/Jan/2011:11:26:23 +0800] [Job 64] Started filter /usr/lib/cups/filter/pstoraster (PID 15995)
I [27/Jan/2011:11:26:23 +0800] [Job 64] Started filter /usr/lib/cups/filter/rastertoepson (PID 15997)
I [27/Jan/2011:11:26:23 +0800] [Job 64] Started backend /usr/lib/cups/backend/socket (PID 15998)
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-state-changed event...
D [27/Jan/2011:11:26:23 +0800] Returning IPP successful-ok for Send-Document (ipp://localhost:631/printers/isp1_tw) from localhost
D [27/Jan/2011:11:26:23 +0800] cupsdSetBusyState: Printing jobs and dirty files
D [27/Jan/2011:11:26:23 +0800] [Job 64] Started filter gs (PID 15999)
D [27/Jan/2011:11:26:23 +0800] [Job 64] Started filter pstops (PID 16000)
D [27/Jan/2011:11:26:23 +0800] cupsdReadClient: 9 WAITING Closing on EOF
D [27/Jan/2011:11:26:23 +0800] cupsdCloseClient: 9
D [27/Jan/2011:11:26:23 +0800] [Job 64] STATE: +connecting-to-device
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:23 +0800] [Job 64] Looking up "isp1.ust.hk"...
I [27/Jan/2011:11:26:23 +0800] [Job 64] Starting GPL Ghostscript 9.00...
D [27/Jan/2011:11:26:23 +0800] [Job 64] Running /usr/local/bin/gs -dQUIET -dPARANOIDSAFER -dNOPAUSE -dBATCH -dNOMEDIAATTRS -sDEVICE=cups -sstdout=%stderr -sOUTPUTFILE=%stdout -c -f -_
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-progress event...
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:23 +0800] [Job 64] Connecting to isp1.ust.hk:9100
I [27/Jan/2011:11:26:23 +0800] [Job 64] Connecting to printer...
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-progress event...
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:23 +0800] cupsdMarkDirty(P-----)
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
I [27/Jan/2011:11:26:23 +0800] [Job 64] Start rendering...
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-progress event...
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
I [27/Jan/2011:11:26:23 +0800] [Job 64] Processing page 1...
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-progress event...
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:23 +0800] [Job 64] Page = 612x792; 18,18 to 594,774
D [27/Jan/2011:11:26:23 +0800] [Job 64] slow_collate=0, slow_duplex=0, slow_order=0
W [27/Jan/2011:11:26:23 +0800] [Job 64] This document does not conform to the Adobe Document Structuring Conventions and may not print correctly!
D [27/Jan/2011:11:26:23 +0800] [Job 64] Set job-printer-state-message to "This document does not conform to the Adobe Document Structuring Conventions and may not print correctly!", current level=WARN
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-progress event...
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:23 +0800] [Job 64] PID 16000 (pstops) exited with no errors.
D [27/Jan/2011:11:26:23 +0800] [Job 64] PID 15999 (gs) stopped with status 255!
D [27/Jan/2011:11:26:23 +0800] PID 15994 (/usr/lib/cups/filter/pdftops) stopped with status 255!
D [27/Jan/2011:11:26:23 +0800] [Job 64] Error: /undefined in Unrecoverable
D [27/Jan/2011:11:26:23 +0800] [Job 64] Operand stack:
D [27/Jan/2011:11:26:23 +0800] [Job 64]
D [27/Jan/2011:11:26:23 +0800] [Job 64] Execution stack:
D [27/Jan/2011:11:26:23 +0800] [Job 64] %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1910 1 3 %oparray_pop 1909 1 3 %oparray_pop 1893 1 3 %oparray_pop 1787 1 3 %oparray_pop --nostringval-- %errorexec_pop .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval--
D [27/Jan/2011:11:26:23 +0800] [Job 64] Dictionary stack:
D [27/Jan/2011:11:26:23 +0800] [Job 64] --dict:1155/1684(ro)(G)-- --dict:0/20(G)-- --dict:83/200(L)--
D [27/Jan/2011:11:26:23 +0800] [Job 64] Current allocation mode is local
D [27/Jan/2011:11:26:23 +0800] [Job 64] Last OS error: 2
D [27/Jan/2011:11:26:23 +0800] [Job 64] GPL Ghostscript 9.00: Unrecoverable error, exit code 1
I [27/Jan/2011:11:26:23 +0800] [Job 64] Rendering completed
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-progress event...
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
E [27/Jan/2011:11:26:23 +0800] [Job 64] No pages found!
D [27/Jan/2011:11:26:23 +0800] Discarding unused job-progress event...
D [27/Jan/2011:11:26:23 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:23 +0800] PID 15997 (/usr/lib/cups/filter/rastertoepson) stopped with status 1!
D [27/Jan/2011:11:26:23 +0800] PID 15995 (/usr/lib/cups/filter/pstoraster) stopped with status 1!
D [27/Jan/2011:11:26:28 +0800] Discarding unused printer-state-changed event...
D [27/Jan/2011:11:26:28 +0800] Report: clients=0
D [27/Jan/2011:11:26:28 +0800] Report: jobs=2
D [27/Jan/2011:11:26:28 +0800] Report: jobs-active=1
D [27/Jan/2011:11:26:28 +0800] Report: printers=3
D [27/Jan/2011:11:26:28 +0800] Report: printers-implicit=0
D [27/Jan/2011:11:26:28 +0800] Report: stringpool-string-count=768
D [27/Jan/2011:11:26:28 +0800] Report: stringpool-alloc-bytes=8576
D [27/Jan/2011:11:26:28 +0800] Report: stringpool-total-bytes=16712
D [27/Jan/2011:11:26:38 +0800] Discarding unused printer-state-changed event...
I [27/Jan/2011:11:26:53 +0800] Saving printers.conf...
I [27/Jan/2011:11:26:53 +0800] Saving job cache file "/var/cache/cups/job.cache"...
D [27/Jan/2011:11:26:53 +0800] cupsdSetBusyState: Printing jobs
D [27/Jan/2011:11:26:53 +0800] Discarding unused printer-state-changed event...
******************************************************************************
(2) you can view/download this pdf from the following url:
http://www.labour.gov.hk/eng/form/bpvd/BPVD-V19a-AE.pdf
(3) questions for exploring my problem:
(i) CUPS1.4.6 need Ghostscirpt (must be installed)?
(ii) Does CUPS use filter-locale to print UTF8 (Chinese character)?
Or it can print the document (pdf, text, ps) with automatically conversion ( I don't need to set anything)?
(iii) Does Redhat4.0 need to install the related fonts?
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