Ricoh Aficio 3131 Operator's Manual page 203

Copy density is too low
Items to be checked
Has the message "Install new
*** toner cartridge" appeared
on the screen?
Is the copy density or the
background adjustment set
lighter than is standard?
Copy density is too high
Is the copy density or the
background adjustment set
darker than is standard?
Copies are stained
Is the original cover or the
optional reversing automatic
document feeder firmly closed?
Is the original glass dirty?
Is the original cover or the
transport belt of the optional
reversing automatic document
feeder dirty?
Is the scanning area dirty?
Is the copy density set properly?
Are double-sided originals
used?
Are originals with high
transparency used?
Countermeasure
Replace the toner cartridge.
Use the manual density keys or the
background adjustment function to set the
copy density properly.
Use the manual density keys or the
background adjustment function to set the
copy density properly.
Close the cover or the feeder firmly to shut out
any outer light.
Clean the original glass.
Clean the original cover or the transport belt.
Clean the scanning area.
Set the copy density properly with the AUTO
key or manual density keys.
As the other side of the originals can be seen,
set the copy density properly (lighter) with the
background adjustment function.
Place a blank sheet of paper with the size of the
original or larger over the original.
Reference page
Page 9-5
Page 3-15, 4-8
Page 3-15, 4-8
Page 2-10
Page 10-2
Page 10-2, 10-3
Page 10-3
Page 3-15
Page 4-8
Page 2-10
10-5
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