Ricoh A172 - Page 474

Tech Service Bulletin No. A172/A199 – 010
Page 2 of 2
Example
Video data before Dither Processing
120 115 110 118 125 130
125 118 113 120 130 135
128 120 117 123 132 139
Video data after current Dither Processing
240 0 220 0 250 4
250 0 226 0 255 14
255 0 234 0 255 22
Video data after new Dither Processing
152 83 142 86 157 98
157 86 145 88 162 103
160 88 149 91 164 107
The following part update is being issued for all A172 and A199 Parts Catalogs.
REFERENCE
OLD PART NO. NEW PART NO. DESCRIPTION QTY PAGE ITEM
A1725207G A1725207H IC – UVEPROM 4M X16 120NS - 121 12
The IPU Board ROM revision H (file name 5206IP1H.EXE) can be downloaded through the Ricoh Technical
Services BBS.
NOTE:
For more information about the Ricoh Technical Services BBS, order the Guide to Operation (P/N
BBS00001) through normal NSPC channels.
UNITS AFFECTED:
All copiers manufactured after the Serial Numbers listed below will have the new style IPU Board ROM
installed during production.
MODEL NAME SERIAL NUMBER
Gestetner 2606E AB6805xxxx
Gestetner 2606 AB4805xxxx
Ricoh Aficio Color 5206 A712804xxxx
Ricoh Aficio Color 5106 A713805xxxx
Savin SDC206E 5A88040001
Savin SDC206 5A9805xxxx