Ricoh FW780 Service Manual - Page 465

! PARTS ! MECHANICAL Note: This copy is intended as a master original for reproduction of additional bulletins. TECHNICAL SERVICE BULLETIN BULLETIN NUMBER: A163/A251/A252 - 006 APPLICABLE MODEL: GESTETNER - N/A RICOH - FW760 SAVIN - N/A SUBJECT: ORIGINAL JAM SYMPTOM: When feeding thick paper, the Original Feed Motor may lock up. 02/14/2000 CAUSE: There is not enough torque for the Original Feed Motor when thick originals are being used. SOLUTIONS: To improve the machine performance, the follow countermeasure has been implemented. 1. The software has been modified to increase the torque of the Original Feed Motor. NOTE: The part number A2525238 of the ROM is the same only the suffix has changed from "C" to "D". 2. The spring tension for the timing belt has been decreased. NOTE: The part number of the spring has been changed from AA060541 to AA060824. 3. The bushing on the right side only, for both original drive roller (AF020451) are lubricated with Mobil Temp 78 to decrease the friction load. The PCB ROM revision "D" (file name A252MA1D.EXE) can be downloaded through the Ricoh Technical Services FTP Site http://tsc.ricohcorp.com. NOTE: Refer to Facts Line Bulletin # FL002 for more information about the FTP Internet Web Site. UNITS AFFECTED: All A252 machines manufactured after the Serial Number listed below will have the new firmware installed during production. All A252 machines manufactured after the Serial number listed will have the bushings lubricated during production. MODEL NAME Ricoh FW760 SERIAL NUMBER A7839020084 ! ELECTRICAL RICOH GROUP COMPANIES CONTROL NO. 018WID