Xerox PHASER 7500, Service Manual

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Phaser 7500 Printer Service Manual 5-9
Print-Quality Troubleshooting
Repeating Defects Page
The Repeating Defects Page provides a measurement tool that allows you to
match the spacing between repeated marks on the printed pages with the
component that would cause such spacing to occur. Instructions for using the
Repeating Defects Page are printed on the page.
To identify the component causing
the defect, compare your print sample
against the measurements shown.
To diagnose a defect on the
accumulator belt:
Print eight Letter/A4-size pages 1.
long-edge feed. Verify that the
same defect appears on every
fourth page.
Or
Print four Tabloid/A3-size pages. 2.
Verify that the same defect appears
on every other page.
Fuser Imaging Unit Transfer Roller Developer Roller
(Service only)
25 mm (0.99 in.) 83 mm (3.27 in.) 95 mm (3.74 in.) 95 mm (3.74 in.) 38 mm (1.50 in.) 54 mm (2.13 in.) 29 mm (1.14 in.)
s7500-503