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Problem Sample Cause Solution
Print is light or faded on entire
page.
Poor contacts exist on the ITB
unit and the product
grounding unit.
Clean the grounding contacts. If the
problem remains after cleaning,
check the contacts for damage.
Replace any deformed or damaged
parts.
Poor secondary transfer
contacts exist on the
secondary transfer roller and
the ITB.
Clean the contacts. If the problem
remains after cleaning, check the
contacts for damage. Replace any
deformed or damaged parts.
Print is light or faded in a
particular color.
Poor primary transfer bias
contacts on the ITB unit and
product.
Clean the contacts of the color that
produces the light print. If the
problem remains after cleaning,
check the contacts for damage.
Replace any deformed or damaged
parts.
Poor primary charging bias
contacts with the print
cartridge and product.
Poor developing bias contacts
with the print cartridge and
product.
Image is too dark.
The registration density (RD)
sensor is defective.
Replace the RD sensor.
Page is blank.
The imaging high-voltage
power-supply is defective (no
developing bias output).
Replace the imaging high-voltage
power-supply .
The page is all black or a solid
color.
Poor contact exists in the
primary charging bias or
developing bias contacts
between the print cartridge
and the product.
Clean each contact of the color that
produces the all black or solid color.
If the problem remains after
cleaning, check the contacts for
damage. Replace any deformed or
damaged parts. Replace the
affected print cartridge.
ENWW
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