2.2.3 Drum Initialization: SP3-123
CAUTION: If SP3-123 is performed, the VR, VL, and T/H correction levels
and the drum rotation timer are reset. As a result, the old
drum cannot be used any more.
If the old drum is used after SP3-123 is performed, dirty
background and/or toner scattering will appear on copies
sooner or later because proper process control will not be
applied to the drum.
When installing a new drum, do the following procedure make
sure that the machine returns to its normal operating
condition.
1. Install a new OPC drum.
2. Clean the optics, sensors, and inside the copier if necessary.
3. Do SP 3-123 as follows.
3-1. Enter SP3-123. (Do not press the key after entering this SP
mode until you are sure you want to initialize the drum data.)
3-2. Press the key. The drum data will be initialized.
4. Perform the following SP modes in the following order (see "Practical SP
Mode Use Tables" for details):
(1) SP3-001: ID Sensor Initial Setting
(2) SP3-112: Forced VR Detection
(3) SP4-001: Exposure Lamp Voltage Adjustment
(4) SP4-201: Auto ADS Gain Adjustment
(5) SP3-105: Forced VL Detection
5. Check the copy quality and the paper path and do any necessary
adjustments (see Replacement and Adjustment - Copy Quality Adjustments).
FSM 4-11 FT5535/4527/4522
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