Xerox 4400DT Service Manual - Page 9
Servicing Electrical Components - phaser toner
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Servicing Electrical Components Before starting any service procedure, switch off the printer power and unplug the power cord from the wall outlet. If you must service the printer with power applied, be aware of the potential for electrical shock. Warning: Turning the power OFF using the On/Off switch does not completely de-energize the printer. You must also disconnect the printer power cord from the AC outlet. Position the power cord so that it is easily accessible during servicing so that you may power down the printer during an emergency. Warning: Do not touch any electrical component unless you are instructed to do so by a service procedure. S7300-02 Servicing Mechanical Components Manually rotate drive assemblies to inspect drive gears. Warning: Do not try to manually rotate or manually stop the drive assemblies while any printer motor is running. S7300-03 Servicing Fuser Components This printer uses heat to fuse the toner image to a sheet of paper. The Fuser Assembly is very hot. Turn the printer power OFF and wait at least 5 minutes for the Fuser to cool before you attempt to service the Fuser Assembly or adjacent components. viii Phaser 4400 Laser Printer Service Manual
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