HP LaserJet 2200 Manuel de service Page 194

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178 Chapter 7 Troubleshooting C7058-90936
Troubleshooting process
Preliminary operating checks
Make sure that the following conditions are met before troubleshooting a specific printer problem:
l The printer is plugged in and power is delivered to the outlet as specified on the power rating
label.
l The selected tray contains media that has been properly loaded.
l The toner cartridge is installed properly.
l The printer is receiving maintenance on a regular basis.
l Any I/O devices are properly installed.
l The customer is using acceptable print media.
l The printer is positioned on a solid, level surface.
l The line voltage does not vary more than 10 percent from the nominal rated value specified on
the power rating label.
l The operating environment for the printer is within the temperature and humidity specifications.
l The printer is never exposed to ammonia fumes such as those produced by diazo copiers or
office cleaning materials.
l The printer is not exposed to direct sunlight.
l Non-HP components (such as refilled toner cartridges, font cartridges, and memory boards) are
removed from the printer.
Note Sudden changes in the printers 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 180 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.
Note It is important to always follow this process in sequence. Failure to do so can result in increased repair
time, difficulty, and expense.
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