January 2010
4-100
Phaser 7760 Color Laser Printer
ADJ 9.7, ADJ 9.8
Revised
Repairs and Adjustments
ADJ 9.7 PWM Mapping Data Read
Procedure
NOTE: Data cannot be adjusted within this function. This is an information only.
1. Enter the Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools
> Printer Status Page > hold the Up and Down buttons simultaneously > Run Service
Diagnostics > OK.
2. Select Adjustments/Calibrations and press OK.
3. Select PWM Mapping Data Read and press OK.
4. The results are displayed. Press any key to see more data. Press any key to exit.
ADJ 9.8 Coarse RegiCon Initialization
Procedure
1. Enter the Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools
> Printer Status Page > hold the Up and Down buttons simultaneously > Run Service
Diagnostics > OK.
2. Select Adjustments/Calibrations and press OK.
3. Select Coarse RegiCon Init and press OK.
a. After NVRAM values are read, the test asks Set Factory Defaults? Yes/No. Select
Yes.
b. This sets the horizontal and vertical alignment to centered values. At this time, it
should not be necessary to reset the magnification or magnification balance values.
Reset Mag/Bal Values?
• Yes/No - select No
NOTE: In all the following steps, Cyan is the reference line and cannot be adjusted, so
you need to adjust all the other lines toward the Cyan line.
4. From the Built-in Test Prints menu, select Print Grid 1-Dot.
NOTE: Must have 8 x 11 media (LEF) in Tray 1 (MPT) to perform this procedure.
a. This print provides the relative error between the C and MYK scan lines. Always indi-
cate which edge of the print comes out of the printer first to be certain which way is
Left/Right or Up/Down (refer to Figure 1 Grid 1-Dot pattern orientation for A-size
paper.) Measure the distance (in millimeters) between the vertical lines, with the
Cyan line being the reference line.
b. It is best if the default paper tray contains A-size paper.
Figure 1 Grid 1-Dot Pattern Orientation
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