Ricoh Aficio 1515 Service Manual page 124

SERVICE PROGRAM
2908 Forced Toner Supply
Supplies the toner to the development unit. The processing stops under either of
2908 1
the following conditions:
• The toner density in the development unit reaches the standard level.
• The processing has continued for two 2 minutes.
2915*
Polygon Mirror Motor Idling Time
2915 1 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 ADF is
opened. The motor 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
2921 1 [0 = Sensor 1 / 1 = Sensor 2 (DFU)]
Selects the toner supply mode. Keep the default setting as long as the TD sensor is
working. You can selects "3" only when the TD sensor is abnormal. Do not select
"1" or "2".
2922* Toner Supply Time
Adjusts the toner supply time. The toner supply motor remains on for the specified
2922 1
time. To 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
2926 1 Adjusts Vts (the Vt value for new developer). The TD sensor output is adjusted to
this value 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
2927 1
control. Keep the default value in usual operations.
2928 Toner End Clear
2928 1 Clears the following messages and counters without supplying the toner:
• Toner near end message
• Toner end message
• Toner near end counter
• 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..
[0 = None / 1 = 15 s / 2 = 25 s]
[0.1 ~ 5.0 / 0.6 / 0.1 s/step]
[0.00 ~ 5.00 / 2.50 / 0.01 V/step] DFU
[0 = No / 1 = Yes]
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9 March 2004