Periodic Density Fluctuation (2) - Ricoh Pro C651EX Troubleshooting Manual

3.4.7 Periodic Density Fluctuation (2)

The vertical column density fluctuates at 11 mm (0.4 inches) intervals on the right
edge perpendicular to the paper feed direction. This fluctuation does not occur in
the area that is 90 mm (3.6 inches) or less from the trailing edge.
Cause:
The speed of the transfer timing roller is less than that of paper transfer.
This may occur if:
• Printing is done at low temperature or humidity
• Halftone images are printed
Note:
• To adjust the following settings, pre-register the type of paper in use as a custom
paper. For details about registering custom papers, see "Registering a Custom
Paper", Paper Settings Reference.
• Increasing the speed of the transfer timing roller may lead to a change in density
in the area that is 90 mm (3.6 inches) or less from the trailing edge.
90 mm
(3.6 in.)
CNT010
54