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User GuidePro C7500/C7500H

Uneven Density: Mixed-color Images

Areas of uneven density occur in images with multiple colors.

Illustration of Uneven Density: Mixed-color Images

Cause:

When the temperature of the environment is low, such as on a wintery morning, the resistance of the paper transfer bias roller increases, resulting in insufficient transfer current in the paper transfer unit, causing a paper transfer failure.

Solution:

  • Turn the printer on about 1 hour before printing.

  • Raise the temperature.

  • Set the machine's anti-condensation heater switch to "ON".

If the problem persists, there is no other solution. Contact your service representative.