debian下打印机安装后不能打印（已经解决）

cpinging

三星ML4500打印机在debian下正常安装，CUPS中可以看到此打印机，进行打印测试时，打印机数据等开始闪烁，并进行预热，但很长时间也不打印，数据灯一直在闪，在CUPS里查看现显示parrell port busying ，不知何故。但同一台打印机在本机的MANDRIVA LINUX能正常打印阿？

而且第一次安装但DEBIAN时，打印机一次安装成功！这次重装系统，却又出现问题，很奇怪，不知那里设置出了 问题。

请高手帮忙



一下是CUPS部分日志：
I [17/Aug/2005:13:52:59 +0800] Listening to 0:631
I [17/Aug/2005:13:52:59 +0800] Loaded configuration file "/etc/cups/cupsd.conf"
I [17/Aug/2005:13:52:59 +0800] Configured for up to 100 clients.
I [17/Aug/2005:13:52:59 +0800] Allowing up to 100 client connections per host.
I [17/Aug/2005:13:52:59 +0800] Full reload is required.
I [17/Aug/2005:13:53:00 +0800] LoadPPDs: Read "/etc/cups/ppds.dat", 1496 PPDs...
I [17/Aug/2005:13:53:06 +0800] LoadPPDs: Wrote "/etc/cups/ppds.dat", 2748 PPDs...
E [17/Aug/2005:13:53:06 +0800] LoadAllJobs: Unable to queue job for destination "http://zytoffice:631/printers/samsung4500"!
I [17/Aug/2005:13:53:06 +0800] Full reload complete.
I [17/Aug/2005:13:53:55 +0800] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=3733)
I [17/Aug/2005:13:54:01 +0800] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=3735)
I [17/Aug/2005:13:54:02 +0800] Adding start banner page "none" to job 2.
I [17/Aug/2005:13:54:02 +0800] Adding end banner page "none" to job 2.
I [17/Aug/2005:13:54:02 +0800] Job 2 queued on 'SAMSUNML4500' by ''.
I [17/Aug/2005:13:54:02 +0800] Started filter /usr/lib/cups/filter/pstops (PID 3736) for job 2.
I [17/Aug/2005:13:54:02 +0800] Started filter /usr/lib/cups/filter/foomatic-rip (PID 3737) for job 2.
I [17/Aug/2005:13:54:02 +0800] Started backend /usr/lib/cups/backend/parallel (PID 3738) for job 2.
I [17/Aug/2005:13:54:46 +0800] Started "/usr/lib/cups/cgi-bin/printers.cgi" (pid=3754)
I [17/Aug/2005:13:54:47 +0800] Started "/usr/lib/cups/cgi-bin/jobs.cgi" (pid=3756)
E [17/Aug/2005:13:56:38 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:39 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:40 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:41 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:42 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:43 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:44 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:45 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:46 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!
E [17/Aug/2005:13:56:47 +0800] get_jobs: resource name '/printers/SAMSUNGML-4500' no good!


最后查明是BIOS里并口（我用的是并口打印机）通信设置，改为ECP模式并起用DMA，故障完全解决。
数据灯一直闪烁是因为系统频繁用中断去测试打印机连接情况，导致打印数据无法传望打印机。查阅了有关EPP与ECP的资料后，解决上述问题。