Panasonic DP-C321 Service Handbook page 128

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009-383 ATC SENSOR FAILURE (K)
Description The ATC SENSOR (Y) failure. Or the failure was
also detected when the amount of the developer material
becomes low or the Auger of the Developer cannot revolve due
to a faulty motor.
To clear this fault, clear the value of DC131 [752-
112] to "0".
BSD on : CH9.13 CH9.31C
Procedure
Perform the ATC measurement of the DC922 TRC Control. (If
this measurement cannot be performed, rewrite the value of the
DC131 [752-324] to 2. After the measurement has completed,
restore the value.)
Is the FAILURE judgement of the ATC SENSOR (K) OK?
Y N
Check the installation status of the ATC SENSOR and the
wire between the ATC SENSOR P132 and the I/F PWB
J534 for an open circuit and poor contact. If no problems
are found, replace the ATC SENSOR. (PL6.2)
After checking that no failures are detected during normal
operation, end the Diag.
009-390 NEW TONER DETECT FAILURE K
Description When a new Toner Cartridge was installed, the
level of the NEW CARTRIDGE DETECT SWITCH (K)
remained L (NEW) although it should be changed from L
(NEW) to H (OLD) by the DISPENSE MOTOR drive.
BSD on : CH9.14 CH9.31D
Check Items
• Check that the NEW/OLD Detection Switch (metal part) at
the rear of the Toner Cartridge is raised.
• If the New/Old Detection Switch is not raised, lift it up
with your hands and reset the value of DC131 [752-686]
(Accumulative Disp Time Value K) to "0".
• Install the Toner Cartridge and retry to change the New/
Old Detection Switch by turning On the power of the
machine or closing the Front Door.
(The coupling of the Dispence Motor and the Toner
Cartridge may not be engaged.)
• Dispense Motor Revolution Check
DC330 [009-001]
Procedure
Remove the P/J405 from the MCU PWB.
Has the display of 09-390 been cleared?
Y N
Replace the MCU PWB. (PL13.1)
Remove the Top Cover of the machine.
Remove the Toner Cartridge K and check the Despense Motor
Assy.
Remove the Faston 186/187 at both edges of the NEW
CARTRIDGE DETECT SWITCH (K).
Check connectivity at both edges of the NEW CARTRIDGE
DETECT SWITCH (K).
Is there connectivity from the first while the Switch is not
pressed.
Y N
Check the wire between the connector J405-A18 and the
NEW CARTRIDGE DETECT SWITCH (K) FS187 for a
short circuit to the frame.
Replace the NEW CARTRIDGE DETECT SWITCH (K).
(PL16.1)
009-391 NEW TONER DETECT FAILURE C
Description When a new Toner Cartridge was installed, the
level of the NEW CARTRIDGE DETECT SWITCH (C)
remained L (NEW) although it should be changed from L
(NEW) to H (OLD) by the DISPENSE MOTOR drive.
BSD on : CH9.14 CH9.31D
Check Items
• Check that the NEW/OLD Detection Switch (metal part) at
the rear of the Toner Cartridge is raised.
• If the New/Old Detection Switch is not raised, lift it up
with your hands and reset the value of DC131 [752-685]
(Disp Time Accumulated Value C) to "0".
Chapter 3 Troubleshooting
• Install the Toner Cartridge and retry to change the New/
Old Detection Switch by turning On the power of the
machine or closing the Front Door.
(The coupling of the Dispense Motor and the Toner
Cartridge at the rear may not be engaged.)
• Dispense Motor Revolution Check
DC330 [009-002]
Procedure
Remove the P/J405 from the MCU PWB.
Has the display of 09-391 been cleared?
Y N
Replace the MCU PWB. (PL13.1)
Remove the Top Cover of the machine.
Remove the Toner Cartridge C and check the Despense Motor
Assy.
Remove the Faston 184/185 at both edges of the NEW
CARTRIDGE DETECT SWITCH (C).
Check connectivity at both edges of the NEW CARTRIDGE
DETECT SWITCH (C).
Is there connectivity from the beginning while the Switch is not
pressed.
Y N
Check the wire between the connector J405-A17 and the
NEW CARTRIDGE DETECT SWITCH (C) FS185 for a
short circuit to the frame.
Replace the NEW CARTRIDGE DETECT SWITCH (C).
(PL6.1)