Epson LQ-860 User Manual - Page 106

Using the Data Dump Mode The data dump mode is a special feature that makes it easy for experienced users to identify the cause of communication problems between the printer and application programs. The data dump mode gives a printout of the codes reaching the printer. To use the data dump mode, follow these steps: 1. Make sure that the printer is loaded with either single-sheet or continuous paper. 2. If the printer is on, turn it off; then hold down the FORM FEED and LINE FEED buttons at the same time you turn on the printer. 3. Run any program that causes the printer to print (either an application program or one in any programming language). Your printer prints out all the codes sent to the printer, as shown below. (To print the last line, you must take the printer off line.) 1B 4 0 1B 5 2 0 0 1B 7 4 0 1 1B 3 6 1 2 1B 5 0 1B 7 0 0 0 2 0 2 0 54 6 8 6 9 73 2 0 6 9 73 2 0 61 6E 2 0 6 5 7 8 61 6D 7 0 6C 6 5 2 0 6F 6 6 2 0 6 1 2 0 6 4 6 1 7 4 6 1 2 0 6 4 7 5 6D 7 0 2 0 7 0 7 2 6 9 6E 74 6F 75 74 2E 2 0 5 4 6 8 6 9 7 3 2 0 6 6 6 5 61 7 4 7 5 7 2 6 5 2 0 6D 61 6B 6 5 7 3 0A 20 20 20 20 20 6 9 74 20 65 61 73 79 20 66 6F [email protected]. This is an exa mple of a data d ump p r i n t o u t . T h is feature makes . it easf y o On the left side of the printout all the codes are printed in hexadecimal format. On the right side of the printout all printable characters are printed, and others, such as control codes, are represented by dots. 4. To turn off the data dump mode press ON LINE to take the printer off line. Then turn off the printer. (You can also cancel the data dump mode by sending an INIT signal from the computer.) By reading the characters printed in the text field on the right side of the data dump printout (see step 3) or the printout of hex codes, you can check which codes are being sent to the printer. Using the Printer 3-29