C0070: Toner Replenishing Motor Malfunction; Developing Section - Minolta Di152 Service Manual

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C0070: Toner Replenishing Motor malfunction

Toner Replenishing Motor (M6)
Toner Bottle Home Position Sensor (PC7)

DEVELOPING SECTION

Toner Replenishing
Toner Bottle Home
Position Sensor
Step
1 The coupling of the Toner Hopper
turns as the Toner Replenishing
Motor (M6) turns.
<Check Procedure>
• Disengage the Toner Bottle
Release Lever.
• Turn the Toner Bottle a half turn by
hand.
• Turn ON the Power Switch.
2 The Toner Bottle Home Position Sen-
sor (PC7) is operational.
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND when
the Toner Replenishing Motor (M6)
turns.
• Voltage across PJ19A-10 and
GND
DC0 V when unblocked
DC5 V when blocked
3 The following voltage is supplied to
the Toner Replenishing Motor (M6).
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND when
the Toner Replenishing Motor (M6)
turns.
• Voltage across PJ19A-6 and GND
DC0 V when deenergized
DC24 V when energized
Relevant Electrical Parts
Motor
Check
T-26
Master Board (copier: PWB-A)
PWB-A
Master Board
PC7 ANODE
Result
NO • Check for overload.
NO • Change Toner Bottle Home Posi-
tion Sensor (PC7).
YES • Change Toner Replenishing Motor
(M6).
NO • Change Master Board (copier:
PWB-A).
4022T528AA
Action