HP CM1415fn Guía de usuario Pagina 207

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Repetitive image defects
If the product output has a consistent, repetitive defect, then use the table in this section to determine
which part needs to be replaced based on the measured distance between the repetitions of the defect.
NOTE: The following table replaces the graphical repetitive defect ruler. You can make your own
ruler by using these measurements. For the most accurate results, use a metric ruler.
Table 6-2 Repetitive image defects
Distance between
identical defects
Component Notes
22.3 mm (0.87 in) Developer roller (one rotation) Appears in a single color plane.
26.7 mm (1.05 in) Charger roller Appears in a single color plane.
28.5 mm (1.12 in) Developer RS roller (one rotation) Inside developer, this roller removes and supplies toner to
the developer sleeve.
44.0 mm (1.73 in) Registration roller
56.5 mm (2.22 in) Fuser film (one rotation) Appears in all color planes.
56.8 mm (2.23 in) Fuser pressure roller (one
rotation)
Appears in all color planes.
57.0 mm (2.24 in) Transfer roller Appears in all color planes.
69.0 mm (2.71 in) Cartridge-to-cartridge spacing Distance between each color image drum
75.8 mm (2.98 in) Image drum (one rotation) Appears in a single color plane and might be either a dark
or white spot.
633.6 mm (24.94 in) ITB Because the ITB is longer than a page, you might have to
look at multiple pages to determine if repetitive defect is
present.
ENWW
Improve print quality
187
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