Xerox Phaser 740 产品宣传页

If you notice a problem with the quality of your prints, the probable solution is 
replacing one of the consumable components (Toner Cartridges, Imaging Unit, 
Fuser, Fuser Roll, Transfer Kit, or Main Charge Grid).  

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If the printer’s front panel message indicates replacing one or more 
consumables, replace it if necessary. 

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To help you diagnose the problem (in the absence of a front panel message), 
print the Consumables Page and Service Print 1 from the front panel’s 

examples of symptoms, probable causes, and solutions.

One color only:

Replace the color Toner Cartridge.

All four colors:

Replace one of these consumables:

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Imaging Unit

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Fuser

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Fuser Roll

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Main Charge Grid

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Transfer Kit

Refer to “Symptoms and solutions” on page 70 for more detailed symptoms and solutions.