321
SEP 2004
Ver. 1.2
DP-1520P/1820P/1820E
7.3.3. Toner Density Control (TDC) Adjustment
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.
7.3.4. OPC Counter Reset
1. Press the "START" key.
2. Press the "1", "4" and "START" keys sequentially to proceed "14" (OPC Counter Reset).
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 (included inside the 1st Paper Tray).
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.
7.3.5. Paper Size setting (Paper Tray) for your customer
1. Press the "FUNCTION" key.
2. Select the "1: GENERAL SETTINGS" and press the "SET" key.
3. Select the "09 KEY OPERATOR MODE", input the 3 Digit Code (default is 000) to enter the Key
Operator Mode and press the "SET" key.
4. Select the "01 PAPER SIZE" and press the "SET" key.
5. Press “V” or ”/\” arrow keys to select a New Paper Size and press the "SET" key.
6. Press the "RESET" key, to exit the General Settings Mode.
8-09 (Performed after Developer Installation & Replacemen
TDC Adjust
3 min
OPC Counter Reset
F8-14 (Performed after OPC Installation & Replacement)
1-2 sec
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