Ricoh Neptune-P1, Service Manual

Page: 293 / 457

SP3-xxx Process Control
3001 ID Sn Init ID Sensor Initial Setting
These SP's do the settings for the ID sensor LED.
1 PWM
Sets the level of the PWM (Pulse Width Modulation) of the ID sensor LED.
DFU
[0 to 100/20/0.1%]
2 Initialization
Automatically adjusts the ID sensor with a sensor reading of the bare drum.
The initial setting is 4.0V ±0.2. This SP requires about 4 sec. to execute.
Always do this SP at installation, and after you replace these components:
• OPC Drum
• ID Sensor
• NVRAM
• MCU
3103 ID Sn Display ID Sensor Output Display
This SP displays the current readings of the bare drum surface (Vsg) and the ID sensor pattern
(Vsp)
1 Vsg Bare drum reflection
2 Vsp ID sensor pattern reflection
3911 Mix New Developer
This SP agitates and mixes developer to raise its triboelectric charge and prevent dirty
background on copies. Do this SP only if the machine has not been used for a long time.
Note: Execution of this SP is not required at machine installation or after developer replacement.
5. Service Tables
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