Dc922 Trc Control (Color Image Control) - Panasonic DP-C321 Service Handbook

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3. 4. 4. 21 DC922 TRC Control (Color Image Control)

Function Calculates the added/extracted amount of the toner by using the difference between the
read value of the ATC sensor and the reference value to set the appropriate density.
• Check that A4 paper (LEF) is loaded in Tray 1 since the Toner Density Adjustment
(TONE UP/DOWN) uses paper.
• At the Toner Density Adjustment (TONE UP/DOWN), the Execute button is
disabled (displayed dimmed) when the required No. of paper for adjustment of the
YMCK radio selection colors is "0".
• Paper is not fed at the TRC Control.
• Execution time is not displayed because the TRC Control does not take a long time.
For detailed procedure, refer to Chapter 2 ADJ1.1.3.
<TRC Control>
Procedure
1. Select the "Color Image Ctrl" on the Service Mode screen.
2. Select [DC922] on the Color Image Ctrl screen.
3. The TRC Control screen is displayed.
4. Select [Execute].
5. Select [Close] to return to the Color Image Quality Ctrl screen.
<Toner Density Adjustment>
Procedure
1. Select the "Color Image Ctrl" tab on the Service Mode screen.
2. Select [DC922] on the Color Image Ctrl screen.
3. Click [Execute].
Data is displayed in the Setup Info. area.
4. Select the [Toner Density Adjustment] button in the TRC Control screen.
5. Select a color required for UP/DOWN and click it.
6. Perform the process for the other colors in the same way.
7. Select [Close] twice to return to the Color Image Ctrl screen.
Chapter 3 Troubleshooting