Ricoh A172 Service Manual page 517

Technical Service Bulletin No. A172/A199 - 025
Page 2 of 2
PROBLEM 2:
A dirty background is produced on copies with the Main Board ROM revisions E, F, and G.
CAUSE:
A programming error is causing a 300-msec time delay on the Cleaning Blade for the
Transfer Belt.
SOLUTION:
The Transfer Belt Cleaning Blade timing program has been corrected.
NOTE: This problem does not exist with the Main Board ROM revisions D or older.
PROBLEM 3:
A blurred image is produced while making a black and white copy in ACS mode with
Main Board ROM revisions E, F, and G.
CAUSE:
A programming error is causing a 300-msec time delay on the Transfer Roller.
SOLUTION:
A software modification has been made to correct the timing of the Transfer Roller.
NOTE: This problem does not exist with the Main Board ROM revisions D or older.
PROBLEM 4:
A blank margin in the main scan direction when making a copy in single color black mode
using a special program in User Tool. This problem occurs after a print job is sent to the
copier.
CAUSE:
The timing program to send data to the IPU was incorrect.
SOLUTION:
The timing program has been corrected.
NOTE: This problem does not exist with the Main Board ROM revisions D or older.
The Main Board ROMs revision J (A172MA3J.EXE) can be downloaded through the Ricoh Technical
Services FTP Site http://tsc.ricohcorp.com.
UNITS AFFECTED:
All copiers manufactured after the Serial Numbers listed below will have the new Main Board ROM
modifications during production.
MODEL NAME
Gestetner Model 2606
Gestetner Model 2606e
Ricoh Aficio Color 5106
Ricoh Aficio Color 5206
Savin Model SDC206
Savin Model SDC206E
SERIAL NUMBER
AB4901XXXX
AB69030001
A7139010001
A7129010001
5A99010001
5A89010001