Xerox DocuColor 12/DCCS50, Service Manual

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TRC Setup/Toner Concentration Adjustment
General Procedures
Reissue
TRC Setup/Toner Concentration Adjustment (dC922 UI
Diagnostics)
Purpose
The system displays the control function buttons (TRC Control, TRC Adjustment,) for the TRC
Setup.
NOTE: Functional comparison between the UI Diagnostics and the PWS Diagnostics.
UI Diag.:
1.
No target value display
2. Tray2 fixed
NOTE: This section only describes the Setup in the UI-Diagnostics. For details see dC922
TRC Setup/Toner Density Adjustment.
Procedure
1. Enter the UI Diagnostics Mode . Refer to How to Enter/Exit the UI (IOT) Diagnostics .
2. Select the following:
Max Setup → TRC Setup/Toner Concentration Adjustment → TRC Control
3. Select the Start Button.
4. The system displays the measurement value and displays the results on the UI.
5. If the evaluation of each color is OK, select Close twice and return to the “Max Setup
Screen.”
6. Select the Toner Density Adjustment .
7. Select an NG Color (Y, M, C, K) in Step 5. Select the Start Button.
8. Run Step 8 in all NG items.
9. Select Close to return to the “TRC Setup/Toner Density Adjustment Screen.”
10. Select the TRC Control and check if there is no “NG.”
If there is an “NG”, repeat Steps 2-10.
11. Select Close twice to return to the “Max Setup Screen.”
12. Visually check the low/middle/high density of the “PG” with all OK colors. Adjust the
density if needed, refer to; TRC Adjustment (dC924 UI Diagnostics) .
TRC Adjustment (dC924 UI Diagnostics)
Purpose
Checks the PG Output with the PG Test Print Pattern. Manually fine-adjusts the density (low/
middle/high) for each color.
NOTE: This section only describes the Adjustment in the UI-Diagnostics. For details, see
dC924 TRC Adjust / dC939 TRC Check PG .
Preparation
Visually check the PG with all OK colors in dC924 TRC Setup. Check the density (low/middle/
high) and perform the following steps as needed:
Procedure
1. Enter the UI Diagnostics Mode . Refer to How to Enter/Exit the UI (IOT) Diagnostics .
2. Select the following:
Max Setup → TRC Setup/Toner Concentration Adjustment → TRC Adjustment .
3. Select a Color to adjust and the Density (Low, Mid, High) . Change the Value with the
up/down button. (up: Darker density/down: Lighter density)
4. Perform Step 3 in all modes that need an adjustment.
5. Select Close twice to return to the “Max Setup Screen.”