Ricoh S-C4.5 Field Service Manual page 221

Specifies the polygon mirror motor idling time. The polygon mirror motor starts its operation
when an original is set, a key is pressed, or the platen cover or DF is opened. The motor
2915 1
stops if no manual operation is performed for the specified time. When you set "0", the
motor does not stop while the copier is in the standby status.
2921* Toner Supply Mode
[0 = Sensor 1 / 1 = Sensor 2 (DFU)]
2921 1
Selects the toner supply mode. Keep the default setting as long as the TD sensor is working.
2922* Toner Supply Time
Adjusts the toner supply time. The toner supply motor remains on for the specified time. To
2922 1 validate this setting, select "0" in SP2-921-001. Specify a greater value if the user tends
to make many copies having high proportions of solid black image areas.
2926* Standard Vt
Adjusts Vts (the Vt value for new developer). The TD sensor output is adjusted to this value
2926 1 during the TD sensor initial setting process. This SP is effective only when SP2-921001 is
"0", "1", or "2".
2927* ID Sensor Control
Determines whether the ID sensor signal is referenced or not for the toner density control.
2927 1
Keep the default value in usual operations.
2928 Toner End Clear
Clears the following messages and counters without supplying the toner:
• Toner near end message
• Toner end message
• Toner near end counter
2928 1
• Toner end counter
Do not use this SP in usual operations. When the toner in the development unit is abnormally
insufficient, the drum may attract the toner carrier to its surface. The toner carrier damages
the drum surface..
2929* Vref Limits
[0.1 to 5.0 / 0.6 / 0.1 s/step]
[0.00 to 5.00 / 2.50 / 0.01 V/step] DFU
[0 = No / 1 = Yes]
Adjust the upper or lower Vref limit.
System Service Mode
3
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