最近打印机在打印PDF文件时非常慢，一个2-6页的文件，连续打印，打完第一张，打印机需要等1分多钟，然后机器咔咔咔的响一会儿才开始打印第二张，打完还是要等1分多钟，咔咔咔的响一会继续打印第三张，后面都是这样的情况，而且还经常出现打完第一张后，打第二张时打2行，然后 就直接走纸下面都是空白的，不管机器，它过会儿又重新打印出来完整的第二张，后面基本上就正常了。之前都是打印的单张，没有注意到这个情况，现在孩子课后作业多了基本上都是PDF格式的有好几张的作业，打印的速度超级慢，非常影响使用。能帮忙分析下是那里的原因吗？如何设置，解决？谢谢！打印机是连接电脑使用的。

在更新BIOS重启后黑屏,送修重刷后恢复启动,但启动前显示解锁提示,进入系统后有线网卡无法连接网络,网络设置中显示未识别的网络,HP PC Hardware Diagnostics中 ROM 测试 ( Realtek PCIe GBE Family Controller ) 失败 ,详细信息如下: LogMessage Debug diagnostic: C:\Users\ysn\AppData\Local\Temp\HPDIAGS\3006e6d6-5ab9-414c-a53b-86e19e9ff4fd\net-diags.exe "" LogMessage Debug version: 8.4.1, timestamp: Oct 2 2018 11:20:56 1534, cdm: 8.11.0, net: 8.0.0, ms: 8.3.0 "" LogMessage Debug -subtest=ROMTest "" LogMessage Debug -locale=zh-CN "" LogMessage Debug -debug=true "" LogMessage Debug -version=false "" LogMessage Debug -description=false "" LogMessage Debug -help=false "" LogMessage Debug -catalog=false "" LogMessage Debug -diagconf=.\diagconf.ini "" LogMessage Debug -paramfile= "" LogMessage Debug -paramsection= "" LogMessage Debug -Caption= "" LogMessage Debug -DataCollectionFile= "" LogMessage Debug -DeviceDescription=Realtek PCIe GBE Family Controller "" LogMessage Debug -DeviceID= "" LogMessage Debug -EEPROMSize=64 "" LogMessage Debug -Index=1 "" LogMessage Debug -Retries=2 "" LogMessage Debug -TestRepeats=1 "" LogMessage Debug -VerifyCheckSum=false "" LogMessage Debug -VerifyInvalidMACPattern=false "" LogMessage Debug -VerifyMAC=false "" LogMessage Debug -VerifyMACRange=false "" LogMessage Debug -integratormsgfile=.\net-diags.msg "" LogMessage Debug -paramfile= "" LogMessage Debug -paramsection= "" LogMessage Debug -tiledpopups= "" LogMessage Debug -tiledpopupsbutton= "" LogMessage Debug -tiledpopupsnofocus= "" LogMessage ServiceErrors Test parameters VerifyMAC, VerifyChecksum, and EEPROMSize are not being used in this test and are being ignored. "" LogMessage Subtests Test started "" UpdatePercentage 5 LogMessage Debug Completed in 203ms "" UpdatePercentage 10 LogMessage Debug Completed in 0ms "" LogMessage Debug Realtek PCIe GBE Family Controller "" UpdatePercentage 20 LogMessage Debug Completed in 187ms "" LogMessage Debug MAC Adrress detected is 00-00-00-00-00-00. "" UpdatePercentage 30 LogMessage Debug Completed in 188ms "" UpdatePercentage 90 LogMessage Debug Completed in 0ms "" UpdatePercentage 10 LogMessage Debug Completed in 0ms "" LogMessage Debug Realtek PCIe GBE Family Controller "" UpdatePercentage 20 LogMessage Debug Completed in 172ms "" LogMessage Debug MAC Adrress detected is 00-00-00-00-00-00. "" UpdatePercentage 30 LogMessage Debug Completed in 187ms "" UpdatePercentage 90 LogMessage Debug Completed in 0ms "" UpdatePercentage 10 LogMessage Debug Completed in 0ms "" LogMessage Debug Realtek PCIe GBE Family Controller "" UpdatePercentage 20 LogMessage Debug Completed in 172ms "" LogMessage Debug MAC Adrress detected is 00-00-00-00-00-00. "" UpdatePercentage 30 LogMessage Debug Completed in 172ms "" UpdatePercentage 90 LogMessage Debug Completed in 0ms "" LogMessage ServiceErrors Test failed "" LogMessage ServiceErrors NIC ROM Failure "" ReportFailure 609603 EndOfTest.