26 March 1998DEVELOPMENT
[A]
A231R518.WMF
5. Reassemble the development unit and cover the toner entrance hole with a
piece of paper [A], as shown.
6. Install the development unit into the machine.
7. Turn on the main power switch, make sure that the machine has warmed up,
then perform the TD sensor initial setting using SP 2-801.
8. After performing the TD sensor initial setting, take out the sheet [A] from the
development unit.
NOTE: When doing the TD sensor initial setting, cover the toner entrance hole with
a piece of paper. This is because, if used toner in the PCU falls into the
development unit through the toner entrance opening during TD sensor
initial setting, Vref (toner density reference voltage) will not be measured
correctly.Adjustment
Replacement
6.4.5 TD SENSOR
1. Remove the development unit and empty all the developer. (See Developer.)
2. Remove the TD sensor.
NOTE: When installing the new TD sensor, secure it with double-sided tape.
3. Pour new developer into the development unit and perform the TD sensor initial
setting using SP2-801.
NOTE: When performing the TD sensor initial setting, cover the toner entrance
hole with a piece of paper (see the above illustration).
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ACEC
