Xerox WorkCentre EC7856 User Manual page 266

Troubleshooting
Problem
Colors Too Light or Too Dark
The print or color density is too light,
missing, or the background is foggy.
Vertical White Lines or Streaks - One Color
Lines or streaks appear in one color of
your output.
Toner Missing or Easy to Rub Off
Toner appears to be missing from the
print or is easy to rub off.
266 Xerox ® WorkCentre
User Guide
Solution
1. Verify that the paper you are using is the correct type for the printer and
is loaded properly. For details, see
2. Verify that the paper loaded in the tray matches the paper type selected
at the control panel and in the print driver.
3. To print procedures on resolving print-quality problems, at the control
panel, press Machine Status. Then touch Machine Information >
Information Pages > Troubleshooting Print Quality Page > Print.
If the Color Reference page looks correct, the printer is printing properly.
Your application or incorrect settings in the print driver can be causing the
print-quality problems.
4. If the Color Reference page did not print correctly, perform the Calibrate
Color procedure. At the control panel, press Machine Status, then touch
Tools > Troubleshooting > Calibration > Print Calibration > Next, then
follow the onscreen instructions.
1. Print the test pages to identify the affected color.
2. To clean the printhead lenses for the affected color, pull out the cleaning
rod until it stops, then move it all the way in. Repeat three more times.
Then repeat this procedure for each affected color. For details, see
Cleaning the Printhead Lenses.
Note: To print procedures on resolving print-quality problems, at the control
panel, press Machine Status. Then touch Machine Information > Information
Pages > Troubleshooting Print Quality Page > Print.
1. Verify that the paper you are using is the correct type for the printer and
is loaded properly. For details, see
2. Perform the Calibrate Paper Type procedure. For details, see
Printer Performance
3. At the control panel, select a heavier paper.
Notes: Papers from lightest to heaviest are:
• For uncoated paper: Plain, Lightweight Cardstock, Cardstock, and
Heavyweight Cardstock
• For coated paper: Lightweight Glossy Cardstock, Glossy Cardstock, and
Heavyweight Glossy Cardstock.
® EC7836/EC7856 Color Multifunction Printer
Supported Paper
Supported Paper
on page 39.
on page 48.
on page 48.
Optimizing