HP 2300d Service Manual - Page 182

Troubleshooting process Note Note Preliminary operating checks Make sure that the following conditions are met before troubleshooting a specific printer problem: q The printer is plugged in and power is delivered to the outlet as specified on the power rating label. (See figure 2 on page 19 for a sample identification label and see page 20 for power specifications.) q The selected tray contains media that has been correctly loaded. (See the getting started guide for information about loading trays.) q The print cartridge is installed correctly. (See the getting started guide for information about installing print cartridges.) q The printer is receiving maintenance on a regular basis. (See chapter 4 for information about maintaining the printer.) q Any I/O devices are correctly installed. (See the getting started guide for information about setting up the printer.) q The customer is using acceptable print media. (See chapter 1 for information about media.) q The printer is positioned on a solid, level surface. (See the getting started guide for information about setting up the printer.) q The line voltage does not vary more than 10 percent from the nominal rated value specified on the power rating label. (See figure 2 on page 19 for a sample identification label and see page 20 for power specifications.) q The operating environment for the printer is within the temperature and humidity specifications. (See page 21 for information about the operating environment.) q The printer is never exposed to ammonia fumes such as those produced by diazo copiers or office cleaning materials. (See the getting started guide for information about setting up the computer.) q The printer is not exposed to direct sunlight. (See the getting started guide for information about setting up the computer.) q Non-HP components (such as refilled print cartridges, font cartridges, and memory boards) are removed from the printer. Sudden changes in the printer's environment can cause image defects and media-handling problems. Always make sure the printer is not exposed to direct sunlight or to heating or cooling vents. Allow time for the printer and media to acclimate whenever changing environments (for example, moving from a cold environment to a warm one). Acclimation can take anywhere from 3 to 24 hours depending on the ambient conditions. Basic fault isolation The troubleshooting process is a systematic approach that first addresses the major problems first and then other problems to discover the causes for printer malfunctions and errors. The "Troubleshooting process flow" page 182 illustrates the major steps for troubleshooting the printing system. Each heading depicts a major troubleshooting step. A "YES" answer to the questions allows troubleshooting to proceed to the next major step. A "NO" answer indicates that additional testing and correction is needed. Proceed to the referenced location in the chapter and follow the directions there. After completing the additional testing and correcting the problem, proceed to the next major step. It is important to always follow this process in sequence. Failure to do so can result in increased repair time, difficulty, and expense. 180 Troubleshooting ENWW