HP 5100 Service Manual - Page 189

Troubleshooting the printing system, Preliminary operating checks - laserjet label problem

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Troubleshooting the printing system Note Preliminary operating checks Before troubleshooting a specific printer problem, make sure that the following conditions are met:  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.  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 never exposed to ammonia fumes, including those produced by diazo copiers or office cleaning materials.  The printer is not exposed to direct sunlight.  Non-HP components (such as refilled toner cartridges, font cartridges, and memory boards) are removed from the printer. 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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Q1860-90918
Chapter 7 Troubleshooting
187
Troubleshooting the printing system
Preliminary operating checks
Before troubleshooting a specific printer problem, make sure that the following conditions are
met:
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.
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 never exposed to ammonia fumes, including those produced by diazo copiers
or office cleaning materials.
The printer is not exposed to direct sunlight.
Non-HP components (such as refilled toner cartridges, font cartridges, and memory boards)
are removed from the printer.
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.