Ricoh A151 Operating Instructions Manual page 104

TROUBLESHOOTING
Problem
Copies appear dirty.
Copies are too light.
Copies have white streaks.
Copy image density is uneven.
""
Does the original
background?
Press the left Manual Image Density key to
lower the contrast.
Is the platen cover, exposure glass, or document
feeder belt dirty?
Clean them as shown on pages 47 and 48.
Is the image density level set correctly?
Press the left Manual Image Density key to
decrease the image density?
Is the image density set correctly?
Press the right Manual Image Density key to
increase the image density.
Does the original have a low contrast image?
Press the right Manual Image Density key to
increase the image density.
Clean the corona wire. See page 47.
Clean the corona wire. See page 47.
Action
have a gray or colored