Solve image-quality problems
Solve image quality problems: Image defects table
The following examples depict letter-size paper that has passed through the product short-edge first. These
examples illustrate problems that would affect all the pages that you print, whether you print in color or in
black only.
Table 2-20 Image defects table
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 toner
cartridge and product.
Poor developing bias contacts
with the toner cartridge and
product.
Image is too dark. The RD sensor is defective. Replace the RD sensor.
Page is blank. The high-voltage power-supply
lower is defective (no
developing bias output).
Replace the high-voltage power-
supply lower.
ENWW Solve image-quality problems 107
To Next Page
Loading...