NOTE
• Toner can be supplied using the [4-02] screen by following the steps below.
1) Press the Toner Density Control OFF key.
2) Raise the target T. D. setting and actual values using the value change keys (▲▼).
3) Press the Toner Density Control ON key.
4) Press the Start key, and press the Clear/Stop key after about 5 to 10 flashes. (If the target T. D.
value is higher than the actual T. D. sensor value, toner is supplied during the free run.)
5) Press the Developer Forming key to store the new target toner density data.
• Before making black solid copies to reduce the toner density, lower the target T. D. setting value to
prevent toner from being supplied. Be sure to press the Developer Forming key after reducing toner
density.
7. Repeat the above step until VSG/VSP becomes 8 ± 2.
8. Press the Developer Forming key. Then, leave the service tools.
NOTE
The VSG is locked if it exceeds approximately 4.5 volts. If it is
locked (during setting C, after replacing the OPC belt, etc.),
release the lock as follows:
1) Access service tool [4-02], and press the Toner Density Control
OFF key, then press the ON key.
2) Turn off the main switch, wait, and turn it back on. These steps
releases the VSG lock.
3) Press the Start key, and press the Clear/Stop key after 5 to 10
flashes.
4) Read the VSG on the screen.
5) If the value is not between 3.0 and 4.5, repeat steps 1) to 4). If
it is so, perform setting C.
1 July 1994 Setting C
5-11
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