Ricoh pro c901 - Page 506

Technical Bulletin PAGE: 54/75
Reissued:21-Apr-14
Model: Aries-P1.5/C1.5
Date: 10-Mar-14
No.: RM077107b
6. Toner scattering / dirty printout / dirty background
Excerpt from RTB RM077098 and RM07799
DO NOT replace the developer and OPC drum when encountering the following problems
as these problems are caused by toner degradation.
Implement the solutions described in the table below.
Symptom
Cause
Solution
RTB
a) Toner
scattering
 Low toner fluidity in the
development unit (= high
toner concentration) disables
the sensor to properly detect
the toner amount.
* Incorrect initial developer
installation is also a possible
cause.
 Confirm proper
developer replacement
 Replace with fresh toner
 RM077072c
 RM077077b
b) Dirty printout
 Low toner fluidity causes
contamination inside the
machine results in the below:
 Toner scattering around the
development unit
 Degradation of waste toner
collection in the ITB unit
 Replace with new toner.
 Remove toner clumps
 RM077072c
 RM077098
New toner bottle
contains new
toner from
certain Lot No..
c) Dirty
background
 Low toner fluidity in the
development unit disables the
sensor to properly detect the
amount of toner in the unit.
As a result, the sensor detects
extremely high toner
concentration.
 Replace with new toner.
 Remove toner clumps.
 RM077072c
 RM077098