Olivetti d-Copia 6500MF Plus Service Manual page 535

Defective part
Developer unit
3
Toner container
4
Toner supply motor Execute U135 to check the
5
Y116520-3
Check description
Executing U089 to generate PGs
and check the following :
(see page 1-3-64)
1. Confirm the value from
U155.
(see page 1-3-89)
2. Check if the device executed
a low-density printing for a
prolonged period.
3. Check if the connecting ter-
minals for developer bias are
deformed.
Check the value of U140
MagDC.
(see page 1-3-83)
Shake the toner container up
and down approx. 10 times, and
check the following:
1. Check remaining toner by
the indicator.
2. Check whether the toner
supply inlet is open.
revolution of the toner supply
motor. (see page 1-3-80)
If the value is less than 542, perform U132 to
forcibly replenish toner.
(see page 1-3-80)
Replace the developer unit if the output is kept
too low.
1. If the device was executing a low-density
printing for a prolonged period, perform
developing refreshing.
(System Menu >Adjustment /
Maintenance)
2. If developer refreshing does not correct the
problem, perform the following
Execute maintenance modes U464
Calibration and U410 Grayscale
Adjustment.
(see page 1-3-175,1-3-151)
If the connecting terminals are deformed,
correct for a proper conduction.
If the MagDC value is in excess of the upper
limit by U140, perform U464 to set the
Thickness Target Value from 0 to +30.
Execute maintenance modes U464
Calibration.(see page 1-3-175)
If the message prompting toner replenishing is
shown, the toner inlet is not open, replace the
toner container.
If the toner Conduct supply motor does not
rotate, replace.
1-4-207
Corrective Action
Service Manual
2N8/2N7