Xerox Phaser 5500 series Manual suplementar - Página 6

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Questions and Answers

Xerox compliance with ISO/IEC standards

Q: Will Xerox provide "ISO/IEC certificates" for supplies that have been ISO/IEC

yield tested?

A: The ISO/IEC certification process does not result in the issuance of certificates. By

declaring a yield according to ISO/IEC standards, Xerox warrants that it has done the

testing according to ISO/IEC standards and guidelines. This declaration will be found

in data sheets or collaterals that list consumable supplies yields.

Q: Does Xerox publish its ISO test results?

A: Yes. They can be found online at www.office.xerox.com/iso/.

Q: Will all Xerox supplies declare yields according to the ISO/IEC standard?

A: Declared yields for new Xerox office products will adhere to ISO/IEC standards. Xerox

black-and-white products have been using ISO/IEC 19752 for some time. ISO/IEC

19798 and ISO/IEC 24711 was published in December 2006. Xerox will re-test toners

for past products using ISO/IEC standards as conditions permit. The latest yield

information for Xerox printer and MFP toner cartridges/solid ink sticks can be found

online at www.office.xerox.com/.

Stated Yield vs. Actual Yield

Q: Can I get the ISO/IEC yield for my specific printing application?

A: No. The ISO/IEC standard ensures that the stated consumable yields of different printer

and MFP OEMs are comparable by specifying a set of common testing parameters

and conditions. It is not guaranteed that users will get the declared yields in their own

applications, as page coverage varies by application, and page coverage has the highest

impact on actual yields. User applications running at approximately 5% page coverage

under normal office operating conditions can expect on average to experience yields

that are fairly close to the ISO declared yields.

Q: What are the factors that will impact the yields users get from toner cartridges?

A: The most important factor affecting yield is page coverage. Coverage analysis has

consistently shown that in office environments, the average black-and-white page

coverage is in the range of 4% to 5%. However, it is not unusual for office applications

to run above or below that average. In general, pages with significant dark or shaded

areas (logos or pictures) or a large amount of fine print will generate area coverage

higher than 5%. Other factors that can reduce toner cartridge yield include higher

temperature, higher humidity levels and using a higher print resolution setting.