Dark Lines In Halftone Areas At 75Mm Intervals 6 - Ricoh M016 Service Manual

Image Problems
6.2.4 DARK LINES IN HALFTONE AREAS AT 75MM
INTERVALS
Using the machine in a room where humidity level is too low may cause dark lines in
halftone areas at 75mm intervals. This is because low-humidity conditions tend to cause
variations in light sensitivity across the surface of the drum.
Selecting [On] for [Low Humidity Mode] under [Machine Settings] may help to prevent
these lines from appearing.
When the humidity mode setting is enabled, the drum is rotated slightly every 15 minutes.
This keeps the light sensitivity constant across the entire surface of the drum.
M016/M017 6-12 SM