Ricoh SP 8400DN Field Service Manual page 1497

2.Preventive Maintenance
Fusing
Item
Fusing unit
Heating sleeve belt unit
Fusing entrance guide
plate
Fusing exit guide plate
Stripper plate
Pressure roller
Pressure roller bearings
Fusing thermopile
Pressure roller gears
Pressure roller idler
gears
Fusing entrance sensor
Fusing exit sensor
Paper Feed
Perform cleaning when the frequency of sensor failure, double feeding, or jam increases.
36
U or Maintenance
S Cycle
U R
320K
S R
320K
S C/I
As needed
S C/I
As needed
S C/I
As needed
S R
320K
S R
320K
S C/I
320K
As needed
S C/I/L
As needed
S C/I/L
As needed
S C/I
160K
As needed
S C/I
160K
As needed
PM
Parts
Displayed on the panel
Replace the unit.
Replacement upper limit: 350K
Before replacing, set SP3-701-116 to "1".
Replacement upper limit: 350K
Remove toner deposits
Remove toner deposits
Remove toner deposits
Before replacing, set SP3-701-118 to "1".
Replacement upper limit: 350K
Lubricate with FLUOTRIBO MG GREASE:
100G.
Before replacing, set SP3-701-119 to "1".
Replacement upper limit: 350K
Clean the lens part with a blower brush and a
cotton swab.
Replace if worn out.
Lubricate with Grease Barrierta – S552R.
Replace if worn out.
Lubricate with Grease Barrierta – S552R.
Clean the sensor with a blower brush.
Clean the sensor with a blower brush.
Remarks