Toner Density Control (Tdc) Adjustment; Opc Counter Reset; Installing Toner Bottle - Panasonic DP-8020E Service Manual

7.3.3. Toner Density Control (TDC) Adjustment

Note:
Ensure the Toner Bottle is not installed, or is removed before performing the TDC Adjustment,
or adjustment will not be precise.
1. Press "Function", "Original Size", and "3" keys sequentially to enter the Service Mode.
2. Press the "8" key to enter the F8 Mode (Service Adjustment).
3. Press the "Start" key.
4. Press the "0", "9", and "Start" keys sequentially to begin the automatic TDC sensor gain adjustment.
Note:
Do not touch any keys, or turn the Power Switch Off until the adjustment cycle is finished
(approximately 3 minutes). Refer to the Sequence Chart below.
F8-09 (Performed after Developer Installation & Replacement)

7.3.3.1. OPC Counter Reset

1. Press the "Start" key to enter the F8 Mode (Service Adjustment).
2. Press the "1", "4", and "Start" keys sequentially to proceed "14" (OPC Counter Reset).
F8-14 (Performed after OPC Installation & Replacement)
3. Press the "6", and the "Start" keys to enter the F6 Mode (Adjust Parameters).
4. Write down the contents of F6-21, and 26 onto the memory sheet (adhered to the inside the 1st Paper
Tray).
[For your convenience, record these values on this sheet first, then transcribe them onto the memory
sheet.]
F6-21 = TDC Gain Voltage
F6-26 = TDC Judgement Level
5. Press the "Stop" key.
6. Press "Function", and "Clear" keys simultaneously to exit the Service Mode.
7.3.4. Installing the Toner Bottle
Ver. 1.0
TDC Adjust
3 min
OPC Counter Reset
1-2 sec
(1) Open the Front Cover.
(2) Remove the Toner Waste Container
(3) Shake the Toner Bottle 10 to 15 times to loosen
the contents.
(4) Remove the Tape as illustrated, however, do not
open the Shutter, or Toner will spill.
Caution:
Do Not install the Toner Bottle, and Do Not
make any copies before performing the Toner
Density Control (TDC) Adjustment first, or the TDC
Adjustment will not be precise.
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DP-8020E/8020P/8016P
SEP 2006