HP 750c HP DesignJet 755CM Printer User's Guide - C3198-60051 - Page 159

TROUBLE- 9 SHOOTING Troubleshooting Locating the Source of Your Problem Locating the Source of the Problem 1 Look at the front-panel display for any error message. For an explanation, see chapter 10. 2 Test the printer. Switch the printer off. Ensure that the power cord is firmly inserted in the printer and plugged in to an outlet that you know works. Switch the printer on. Print a sample file (see page 1-21). If the printer prints this correctly, the problem is probably not with the printer. 3 Test your computer hardware and interface. Ensure that you have the correct interface cable between the computer and the printer and that it is firmly connected to the correct ports (see the sections starting on page 1-24). Check that your printer's graphics language setting (in Device setup / Lang) matches the requirements of your software. Serial interface users only. Check that your printer's serial interface settings (in I/O Setup / RS-232-C) match the requirements of your computer hardware and application software. See page 1-26 for details. Also, if you have changed your interface, switch the printer off and then on again before trying to print. 9-3