HP 5100LE manual Troubleshooting the printing system, Preliminary operating checks

Non-HP components (such as refilled toner cartridges, font cartridges, and memory boards) are removed from the printer.

The printer is not exposed to direct sunlight.

The printer is never exposed to ammonia fumes, including those produced by diazo copiers or office cleaning materials.

The operating environment for the printer and print media is within the temperature and humidity specifications listed in chapter 1 of this manual.

The printer is being maintained on a regular basis and in accordance with the procedures described in chapter 4.

The customer is using acceptable print media as specified in the HP LaserJet Printer Family Paper Specification Guide.

The printer is positioned on a solid, level surface.

The line voltage does not vary more than 10 percent from the nominal rated value specified on the power-rating label.

Troubleshooting the printing system

Preliminary operating checks

Before troubleshooting a specific printer problem, make sure that the following conditions are met:

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Note￿￿￿When the printer is moved into a warm room from a cold location such as a warehouse, various problems can result because of cold printer parts and condensation in the printer. For example, if the photosensitive drum is cold, the resistance of the photoconductive layer will be high. This will lead to incorrect contrast. Leave the printer idle for 10 to 20 minutes before printing so that the printer can warm to the temperature of the room and to dissipate condensation.

Q1860-90918 Chapter 7 Troubleshooting 187

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