Delivered Sheets Are Not Aligned

Cause:

When sheets are delivered to the stacker tray, because of paper-to-paper friction, the paddle fails to pull the trailing edge back into the front guide, resulting in misalignment. The paper edge stopper also fails to push back the protruding leading edge. This is likely to occur if Thick (280 g/m2 [105 lb. Cover] or heavier), uncurled A3 or larger paper is used.

Here is a detailed description of how this problem can occur.

1. An uncurled sheet is delivered to the stacker shift tray.
   
2. Strong friction occurs at the trailing edge so that the paddle cannot pull the sheet back and align the edges of the sheet with those of the stack.
   
3. The paper edge stopper fails to push back the protruding leading edge and align the sheet as required.
   
4. Stacked sheets are not aligned properly.
   

If the Decurl Unit option is not being used

Note 1

• Problem cannot be resolved. If the problem occurs on only the first sheet, print a blank sheet as the first sheet, and if the problem occurs on the last sheet, print a blank sheet as the last sheet.

If the Decurl Unit is being used

Follow this procedure to correct paper curl with the Decurl Unit.

1. Using Thick Paper?

   Yes	In the [Adjustment Settings for Skilled Operators] menu, set 0310: [Adjust Paper Curl] to [Adjust Curl: Weak]. Go to next step.
   No	Go to next step 7.

2. Print the image. Problem solved??

   Yes	Finished!
   No	Go to next step.

3. Set 0310: [Adjust Paper Curl] to [Adjust Curl: Strong].

4. Print the image. Problem solved??

   Yes	Finished!
   No	Go to next step.

5. Convex curl is within specification?

   Yes	The problem cannot be solved in the field.
   No	Go to next step.

6. Turn the stack upside down, and go to step 3 again. If the amount of curl exceeds specification, do SP1984-101 to 131 to lower fusing temperature by 5°C to 10°C to reduce the amount of curl. You can also use the Custom Paper Settings > 44: [Fusing Heat Roller Temperature Adj.] to adjust the fusing temperature.

7. Convex curl with Plain Paper?

   Yes	In the [Adjustment Settings for Skilled Operators] menu, set 0310: [Adjust Paper Curl] to [Adjust Curl: Weak]. Go to next step.
   No	The problem cannot be corrected in the field.

8. Print the image. Problem solved??

   Yes	Finished!
   No	Go to next step.

9. Set 0310: [Adjust Paper Curl] to [Adjust Curl: Strong].

10. Print the image. Problem solved??

    Yes	Finished!
    No	Go to next step.

11. Convex curl is within specification?

    Yes	The problem cannot be corrected in the field.
    No	Go to next step.

12. Turn the stack upside down, and go to step 9 again. If the amount of curl exceeds specification, do SP1984-101 to 131 to lower fusing temperature by 5°C to 10°C to reduce the amount of curl. You can also use the Custom Paper Settings > 44: [Fusing Heat Roller Temperature Adj.] to adjust the fusing temperature.
    If this does not solve the problem, adjust the positions of the main jogger and LE stopper with these SP codes:
    
    • SP6-602/SP6-608
    • SP6-603/SP6-609