Adjustment Of Skew - Panasonic DP-C305 Service Manual

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5. Adjustment of Skew

a. Open the Front Cover.

b. Remove the Toner Waste Container.

Locate the 3 adjustment holes for the Yellow, Magenta, and Cyan, as illustrated.

c. Insert the Tool (Jig) into the corresponding color's adjustment hole, as illustrated.

d. Turn the Tool to adjust the Color Skew, according to the F6 Service Mode Parameter Values

(F6-855 / 856 / 857 : Color Skew Registration Adjustment) in Step 4.d..

Each turn of the Tool (Jig) is approximately equal to a value of 10.

Ex: F6-855 New value = 20 → turn Tool Clockwise 2 times.

F6-855 New value = -25 → turn Tool Counter-Clockwise 2.5 times.

e. Reinstall the Toner Waste Container, and close the Front Cover.

f. Perform F8 Service Mode; "F8-30 Color Registration". (Approximately 30 sec)

g. Press the "Reset" key to exit the F8 Service Mode.

h. Make a note of the F6 Service Mode Parameter Values (F6-855 / 856 / 857 : Color Skew

Registration Adjustment).

i. Repeat the above Steps (a - h) until all values are less than ±10. If all values are less than ±10, the

LSU replacement is completed.

For the majority of applications, the above steps are sufficient to obtain the results most users are

looking for.

However, under particular circumstances fine-tuning the Color Skew Adjustment further may be

If fine-tuning is required:

j. Print the Color Skew Test Chart "F1-19 Pattern 17 Only A3/11x17", and confirm the alignment of

each individual color (C, Y, and M) to the fixed Black reference lines. Adjust each color to obtain the

desired alignment results by repeating the steps above.

DP-C405/C305/C265

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