Ricoh pro c901 - RTB 72 d: Procedure to remove Excess Developer and prevent Toner Scattering

Technical Bulletin PAGE: 1/7
Reissued: 4-Aug-15
Model: Aries-P1.5/C1.5
Date: 27-Jan-12
No.: RM077072d
RTB Reissue
The items in bold italics were corrected or added.
General
Continuous printing of low coverage images degrades the developer and disables
complete developer removal, in which the development unit accumulates approximately
400g of developer that cannot be removed. A development unit containing old developer
could cause toner scattering or locking of the development motor over time.
To prevent the above, it is recommended to carry out the following procedures in addition
to the standard developer removal operation.
Check procedure using “Tc down judgement sheet.xls”
Before carrying out the additional developer removal procedures (Procedures 1, 2, 3 and
4), do the check procedure using the Excel file “Tc down judgement sheet.xls” attached
below to determine whether the additional procedures will be needed or not.
Tc down judgment sheet
1. Refer to the SMC printout or go into the SP mode and input the SP values in tables
1 and 3 in the “Tc down judgment sheet.xls”.
2. - If the check procedure results in “Condition 1”, do “Toner Refresh Amount
Adjustment” and Procedures 1, 2 and 3.
- If the check procedure results in either “Condition 2” or “Condition 3”, skip “Toner
Refresh Amount” and do Procedures 1, 2 and 3.
- If the result of the check procedure is none of the above, developer is to be
replaced with the standard procedure.
Subject: Additional procedures for removing excess
developer and preventing toner scattering
Prepared by: T.Miyamoto
From: 1st Tech Service Sect., PP Tech Service Dept.
Classification:
Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
Open this sheet with excel and insert the required values.