Panasonic DP-C321, Руководство по обслуживанию

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2-7
Chapter 2 Maintenance
Adjustment
Procedure
1. Enter DC922 .
2. Click [Execute].
3. The data is integrated.
4. Select "Toner Density Adjustment" on the TRC Control screen.
5. Select a color required for UP/DOWN and click it.
6. Simultaneously select other colors and execute all the necessary UP/DOWN.
7. Press [Close] to return to the TRC Control screen and click [Execute] again.
8. It is all right if the number of UP/DOWN does not become 0. Perform from Step 2 to 7 for
two or three times.
9. Continue to perform ADJ1. 1. 4 Output Check.
ADJ1. 1 .4 DC934 ADC Output Check
Purpose To read the ADC (2 gradation) patch for Potential Control on the IBT and checks that
scanning by ADC Sensor, and the ADC Sensor output and the LD light quantity control operate
normally. Also, provides the rewriting function of the ADC target value.
Adjustment
Procedure
1. Enter DC934 .
2. Click [Execute].
The data is integrated in the Result column.
[When changing the target value]
Explanation of the Result column
If the ATC Sensor is determined to be NG, check the connection of the ATC Sensor
connection, a poor contact, and the amount of developer material, etc.
• If the ATC Average Detection Value is small, and the ATC fluctuation margin is
small (below 10), check that the connector is disconnected.
• If the ATC fluctuation margin is large (over 300), check the Empty status or the
amount of the developer material.
Usually, TC control performs the Disp control so the "ATC Sensor Read Value" becomes
"Correction Target Value". So if the test is OK, except when the difference between
"ATC Sensor Read Value" and "Correction Target Value" is extremely large, the Up/
Down servicing of Step 4 is not necessary.
If the only sensor and shutter indicate NG, it is a failure of the ADC sensor or the shutter
itself and is irrelevant to the patch.
Items Corrective Actions
adc shutter Failure
judgement Check the operations of ADC Shutter.
• DC330 [009-078]: Shutter Open
• DC330 [009-079]: Shutter Close
adc sensor Failure judgement Check the operations of the sensor.
• DC330 [009-076]: ADC regular reflection LED
• DC330 [009-077]: ADC diffuse reflection LED
Patch Failure Judgement Check the process (first transfer) until the patch creation.
LD light quantity warning
judgement After the operating environment, continuous copying, and
empty toner detection, LD-P may turn NG. A case such
as when the toner can not be supplied enough even if the
LD light quantity is increased to its limit, and the ADC
read value fails to fit in the normal range.
There is no need to correct it even when the LD light
quantity warning is determined to be NG unless the
density is extremely wrong.