• 8*8点阵图,方便初学单片机爱好者自行编码
• dotmatrix_64x48_fw_5.0:dotmatrix_64x48（aka MazoClock5）HW 5.0系列的固件
• <div><p>New clock face, replicating the white on blue dotmatrix displays. <p>I don't have a watch atm, so if someone can check its okay (loads widgets etc) that would be ace. <p><img alt="dot...
• <div><p>hi, i have built a dot matrix printer instrument out of an Epson LQ-300+, but am completely stuck with the code, can someone help me put something together? <p>i have an arduino mega, 24 ...
• graphic dot matrix displays and electrophoretic displays. <p>These displays are mostly monochrome and can only display black and some other color, for example white. Typically, a byte controls 8 ...
• <div><p>I want to print HTML data using Dot Matrix, but want the printer to use the Dot Matrix font it have already. Instead of rendering the HTML content.</p> <p>I have tried this using the ...
• <p>I have develop my project in PHP and Javascript, In this project I have to print a bill using Dot Matrix printer via Browser, But it gives error like Print preview failed...... How can I rectify ...
• <p>I am looking to drive a Epson LQ-310 dot matrix printer with Arduino Mega ADK through USB. Are there any library files which are compatible for this application. <p>I connected printer to Mega ADK ...
• 23">WinPOS WP-103S</a> dot matrix printer to a small laptop running Slitaz 5.0 distro. This particular printer is important in Taiwan because it is one of a handul of printers capable of printing ...
• <div><h2>Description: <p><strong>Related issue (if applicable):</strong> fixes ...<p><strong>Pull request in <a href="https://github.com/esphome/esphome-docs">esphome-docs</a> with documentation (if ...
• 点矩阵 点矩阵JavaFX控件。 概述
• we develop a three-dimensional catadioptric vision sensor using 20 to 100 lasers arranged in a circular array called omnidirectional dot maxtric projection (ODMP). Based on the imaging characteristic...
• Recently I encountered an issue to print character report to EPSON LQ2080 dot matrix printer. Wheneven the printer is off and on, in the first print, it prints funny characters at page 7. To figure o
 Recently I encountered an issue to print character report to EPSON LQ2080 dot matrix printer. Wheneven the printer is off and on, in the first print, it prints funny characters at page 7. To figure out whether Apps sends wrong data to lq queue or lq sends wrong data to jet direct, I used $FND_TOP/bin/FNDPRESC to generate some control characters into file and print from unix command line to simulate the printing from Apps. root #$FND_TOP/bin/FNDPRESC  "/e@" > a.out
root # cat cat  $APPLCSF/$APPLOUT/o26232850.out >> a.out
root # \$FND_TOP/bin/FNDPRESC  "/e@" >> a.out

Then use lq to print it to printer:

root # lp -c -d pr-ctl-mis06  a.out

Here -c means copy. pr-ctl-mis06 is the printer name and a.out is the file generated above.

In my company , we are using HP Jet Direct 300x to connect most of the printers to network and we use Jetadmin to configure printers in Unix.

To find the job status , I simply unplug the JD300x and thus the job is stuck in the lpq. Thus I can check using lpq.
root # lpq -P pr-ctl-mis06

Here I can see the job correctly stayed in the queue.
root # cd /var/spool/lp/tmp/ctloradev04/
root # ls

Here when I open the file with "Hex Editor Neo", I can see it's correctly formated and the control characters are exactly expected. The job generated by Apps looks exactly the same as the one I generated manually. So this means the Apps is doing its work correctly. And it's the Jetdirect and Epson side that's causing problem.

After upgrading the Jetdirect using HP Download Manager, which can automatically search Jetdirect box and upgrade its firmware, it still didn't help.  This HP JD 300x has embeded web server and I also tried to do some configurations in EWS but still no help.

In Epson LQ2080, actualy in most Epson dot matrix printer, there's a setting 'Input buffer' which can receive printing data stream from parallel and free the sending device, eg PC, to do other jobs. So this time I don't need to unplug HP JD300x. I put the ''Input buffer' of EPSON 2080 to 'off'' and put the printer into 'Pause' mode, meaning the printer will not accept any data,

After load the paper and release the printer from Pause mode, it prints correctly. So it's the input buffer that cause the issue. Maybe it's related to JD and Epson communication that ruin the Epson input buffer.


展开全文
• <div><p>该提问来源于开源项目：google/periph</p></div>
• <div><p>该提问来源于开源项目：mamedev/mame</p></div>
• <div><p>This adds experimental support for the st7567 LCD device which is used by the GFX HAT from Pimoroni. <p>The example just places some pixels on the device and iterates over the possible ...
• <p>I have created sales bill page in ... But if I print that content in TVS Dot-matrix printer, the font not clear and low quality. Are there any solutions? </div>
• git clone ...cd gendotmatrix sudo python setup.py install Usage:gendotmatrix.py --help example:gendotmatrix.py -o ubuntu-c.font -s "32x32" "/usr/share/fonts/tru...
git clone https://github.com/hmgle/gendotmatrix.git
cd gendotmatrix
sudo python setup.py install
Usage:gendotmatrix.py --help
example:gendotmatrix.py -o ubuntu-c.font  -s "32x32" "/usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-C.ttf"gendotmatrix.py 中的代码不难，大家可以打开修改（根据自己的需要改）
展开全文
• DotMatrix.js是一个基于类的小型高性能库。 由于性能和开发原因，DotMatrix使用SVG而不是canvas。 SVG，CSS3过渡和JavaScript用于创建漂亮的动画。 操场 注意：LetterDot在当前演示中不可用 构型 new DotMatrix...
• import dot from numpy X = [[0, 0, 1], [0, 1, 1], [1, 0, 1], [1, 1, 1]] y = [[-0.16595599], [0.44064899], [-0.99977125]] z = dot(X, y); </code></pre> <p>using this library <p>EDIT - ...
• Dot_matrix_font：基于QtC ++的单片机点阵取字模软件
• /node/node_modules/vows/lib/vows/reporters/dot-matrix.js:37 messages.push(spec.contextText(event.context)); ^ ReferenceError: spec is not defined at Object.report (/node/node_modules/vows/lib/vows/...
• London-Underground-Dot-Matrix-Typeface：一组TfL地下通道到达板样式的点阵字体
• 在Arduino上使用8 * 32 LED点矩阵显示器 为了控制MAX7219的显示，我们将使用两个很棒的Arduino库。 MD_MAX72XX MD_Parola ... LED DOT矩阵连接： MAX7219显示-----> Arduino VCC 5V 地地 DIN 11 CS 3 时钟13
• <div><p>According to the documentation dot product for two matrices is <code>real dProd = M'*M, but I have compile error while trying following code: <pre><code> ifstream in1("matrix.txt&#...
• 该项目是为硬件工程师设计的，用于生成pixmap的汉字点阵。 这些像素图可用于在嵌入式系统/环境（例如LCD）中显示中文。
• <div><p>see the following code that calculates the rowsum of a matrix in two different ways <pre><code> python import time import numpy as np import cudamat as cm cm.cublas_init() x, y = 100, 200...
• Is there any way to just dot multiply two matrices AND is there any way ti simply add two matrices? <p>Thanks, Ahmed Ehsan</p><p>该提问来源于开源项目：peterbraden/node-opencv</p></div>
• 16x32像素RGB点矩阵时钟，可显示日期，温度和新闻标题 由GulJanjua（ ）和源代码文件中提到的任何其他人创建的代码。 最初创建这个主意是因为我找不到其他使用adafruit 16x32 RGB矩阵制作时钟的人，而我以前的时钟...
• 点矩阵 将宽字符（如中文字符）附加到NCL（NCAR命令语言）图形文件 WCHAR.ncl是一个ncl lib文件，其中包含一些用于编码和打点的功能和过程。 wchar_test.ncl是ncl汉字测试脚本。 新用户可以通过文档学习（中文）。...

...