Ricoh B051 Service Manual page 999

Tech Service Bulletin No. B051/B052 – 021
CAUSE:
The lubricant applied to the OPC belt migrates into the black development unit, causing the friction level on
the developer roller surface to decrease. This makes it difficult for the toner to be transferred onto the roller
surface, causing the image to gradually get lighter. The symptom primarily occurs with black developer, but
could potentially occur with a color developer if a single color is the primary output.
NOTE: The symptom temporarily subsides when the toner cartridge is replaced and new toner is supplied
to the hopper (concentration of lubricant in the unit is minimized).
SOLUTION:
During the next service visit for the B051/B052, the firmware should be upgraded and the SP values as
identified in Table 1 should be changed. The modified firmware changes the rotation time of the PCU
assembly to reduce the lubrication used on the OPC.
NOTE: This symptom can possibly occur on the G071, however, the procedure is different. Refer to the
G071 bulletin for the correct procedure.
•
Controller ver 2.01.5 or later.
•
BICU ver 1.253:01 or later.
IMPORTANT NOTE: BE SURE TO UPGRADE AS A SET. PRINT SP 5-990-005 TO CONFIRM THE
FOLLOWING FIRMWARES ARE AT THE APPROPRIATE LEVELS TO ENSURE FIRMWARE
COMPATIBILITY:
FIRMWARE TYPE
CONTROLLER/SYSTEM/COPIER
BICU/ENGINE
LCDC/CONTROL PANEL
NIB
NET FILE
POST SCRIPT
FAX
PRINTER
SCANNER
After updating the firmware, input the following new values manually.
SP No.
2-938-001 (New SP)
2-941-001
3-920-001
3-922-001 (New SP)
3-922-002 (New SP)
CÓPIA NÃO CONTROLADA
FIRMWARE VERSION
2.01.5
1.253.01
1.19
3.70
1.66
2.00
2.01
2.00
Description
OPC Reverse Interval
OPC Lubricant Time – Interrupt
Lubrication Cleaning Time
Lubricant Clutch OFF: 1C
Lubricant Clutch OFF:
2C/3C/4C
Table 1
CÓPIA NÃO CONTROLADA
TSC Website File Name
B051_CTL_V2015S.exe
B051_BICU_FAX_V109T.exe
B051_BICU_FAX_V109T.exe
B051_MFPSP_V201F.exe
B051_MFPSP_V201F.exe
b051_52_Scanner_PS3_Servi
ce_Pack.exe
B051_BICU_FAX_V109T.exe
B051_MFPSP_V201F.exe
b051_52_Scanner_PS3_Servi
ce_Pack.exe
Old Value New Value
0
20
100
0
0
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