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打印机并口故障判断步骤

2008-6-10 11:25

<p>打印机并口故障判断步骤<br/></p>
<p>&nbsp;通过跳线方法清除BIOS </p>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>2、<span style="FONT: 7pt="7pt"  -times New="New"  Roman-">&nbsp; </span></span>进入BIOS,恢复BIOS至出厂设置(优化设置)状态。</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>3、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp; </span></span>进入BIOS中的parallel port mode选项,将模式选择成EPP+ECP</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>4、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp; </span></span>保存退出BIOS</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>5、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp; </span></span>进入BIOS,直接使用PRINTSCREEN按钮,看能否直接在BIOS中输出至打印机。若可以,证明打印机接口没有硬件故障。存在的故障为软件故障。</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>6、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp; </span></span>若无效。将parallel port mode更改成SPP模式,重新进行第5步测试。</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>7、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp; </span></span>若在BIOS下无法打印,并不能证明硬件有问题。并不是所有的主板都支持在BIOS下直接打印的功能。</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>8、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp; </span></span>使用WIN98引导盘引导到DOS下,在DOS提示符后键入“DIR&gt;PRN”命令测试。如果用的是激光打印机,则需要增加一个步骤以使打印机先退纸:键入“echo” 和一个空格,然后按下Ctrl+L(这一组合键在屏幕上显示为“^L”,但这并不等于一个插入 符跟一个大写的“L”),接着键入另一个空格和“&gt;lpt”,然后回车。如果这一测试不能打印出一张目录列表,那么打印问题就不仅仅是Windows环境下的毛病了。检查打印机电缆和并口线如果它们都正常,那么毛病很可能出在打印端口上,将打印机连接到另一个端口上再进行上述测试。</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>9、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp; </span></span>如果在DOS模式能打印的话,一般是系统有问题,删除打印机文件夹中多余的打印机,重装打印机驱动,重装系统。</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  39.75pt; TEXT-INDENT: -18pt"><font size="3"><font color="#000080"><span>10、<span style="FONT: 7pt="7pt"  -Times New="New"  Roman-">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span>如果您发现在DOS下可以正常打印而在Windows中则不行,重新启动Windows,打开控制面板,双击打印机图标,右击您所使用的打印机, 然后选择“ 属性”*“详细资料”,单击“后 台打印设置按钮,取消“直接输出到打印机上”功能。这一功能在正常情况下可以跳过DOS 中断,直接输出打印端口,从而加快打印速度,取消该功能会降低打印性能,但却有可能 解决无法正常打印的问题。</font></font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  21.75pt"><font color="#000080" size="3">&nbsp;</font></div>
<div style="MARGIN: 0cm="0cm"  0cm="0cm"  0pt="0pt"  21.75pt"><font color="#000080" size="3">关于打印机并口模式:EPP、ECP、SPP三种模式,是这样定义的:</font></div>
<div align="center"><font color="#000080" size="3">IEEE-1284端口类型</font></div>
<p>
<table style="BORDER-RIGHT: medium="medium"  none; BORDER-TOP: medium="medium"  none; BORDER-LEFT: medium="medium"  none; BORDER-BOTTOM: medium="medium"  none; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext="windowtext"  1pt="1pt"  solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 106.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="142">
<div><font color="#000080" size="3">并口类型</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext="windowtext"  1pt="1pt"  solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 61pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="81">
<div><font color="#000080" size="3">输入模式</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext="windowtext"  1pt="1pt"  solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="72">
<div><font color="#000080" size="3">输出模式</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext="windowtext"  1pt="1pt"  solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="156">
<div><font color="#000080" size="3">注释</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 106.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="142">
<div><font color="#000080" size="3">SPP(标准并口)</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 61pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="81">
<div><font color="#000080" size="3">半字节</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="72">
<div><font color="#000080" size="3">兼容</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="156">
<div><font color="#000080" size="3">4位输入,8位输出</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 106.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="142">
<div><font color="#000080" size="3">双向并口</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 61pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="81">
<div><font color="#000080" size="3">字节</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="72">
<div><font color="#000080" size="3">兼容</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="156">
<div><font color="#000080" size="3">8位 I/O</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 106.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="142">
<div><font color="#000080" size="3">EPP(增强型并口)</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 61pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="81">
<div><font color="#000080" size="3">EPP</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="72">
<div><font color="#000080" size="3">EPP</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="156">
<div><font color="#000080" size="3">8位 I/O</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 106.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="142">
<div><font color="#000080" size="3">ECP(扩充能力端口)</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 61pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="81">
<div><font color="#000080" size="3">ECP</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 54pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="72">
<div><font color="#000080" size="3">ECP</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 117pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="156">
<div><font color="#000080" size="3">8位 I/O,使用DMA</font></div></td></tr></tbody></table></p>
<div align="center"><font color="#000080" size="3">IEEE-1284并口模式</font></div>
<p>
<table style="BORDER-RIGHT: medium="medium"  none; BORDER-TOP: medium="medium"  none; BORDER-LEFT: medium="medium"  none; BORDER-BOTTOM: medium="medium"  none; BORDER-COLLAPSE: collapse" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext="windowtext"  1pt="1pt"  solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="151">
<div><font color="#000080" size="3">并口模式</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext="windowtext"  1pt="1pt"  solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="84">
<div><font color="#000080" size="3">方向</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext="windowtext"  1pt="1pt"  solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="108">
<div><font color="#000080" size="3">传输率</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="151">
<div><font color="#000080" size="3">半字节(4位)</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="84">
<div><font color="#000080" size="3">只输入</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="108">
<div><font color="#000080" size="3">50KB/秒</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="151">
<div><font color="#000080" size="3">字节(8位)</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="84">
<div><font color="#000080" size="3">只输入</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="108">
<div><font color="#000080" size="3">150KB/秒</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="151">
<div><font color="#000080" size="3">兼容</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="84">
<div><font color="#000080" size="3">只输出</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="108">
<div><font color="#000080" size="3">150KB/秒</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="151">
<div><font color="#000080" size="3">EPP(增强型并口)</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="84">
<div><font color="#000080" size="3">输入/输出</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent" valign="top" width="108">
<div><font color="#000080" size="3">500KB-2MB/秒</font></div></td></tr>
<tr>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="151">
<div><font color="#000080" size="3">ECP(扩充能力端口)</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 63pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="84">
<div><font color="#000080" size="3">输入/输出</font></div></td>
<td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext="windowtext"  1pt="1pt"  solid; BACKGROUND-COLOR: transparent" valign="top" width="108">
<div><font color="#000080" size="3">500KB-2MB/秒</font></div></td></tr></tbody></table></p>
<div style="TEXT-INDENT: 21pt"><font color="#000080" size="3">三种模式速度是不一样的。其中ECP和EPP速度最快,SPP速度最慢。但是SPP模式兼容性最好。尤其是老式的针式打印机,需要先将BIOS中的模式设置成SPP才能保证正常工作。我还遇到过HP的大幅面打印机也需要将BIOS设置成SPP才可以正常工作的先例。</font></div>
<div style="TEXT-INDENT: 21pt"><font color="#000080" size="3">因此遇到打印问题的时候,多进行调试是最重要的。千万不要一味的更换主板来解决问题。</font></div>。

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赵启明

2016-9-7 07:18:14
路过看见,支持一下!顶!顶!顶!

qq838024307

2016-12-3 08:58:43
帮你顶一顶~~~~~~~~~

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