Uneven Density (Textured Paper)

White spots on an embossed surface

Excessive Density on Indentations (in Halftone Areas)

illustration of Dense printing on an embossed surface

Cause:

White spots on indentations are caused by setting the paper transfer voltage too low. Excessive density on indentations is caused by setting the paper transfer voltage too high.

Occurrence conditions:

Heavily textured paper is used.
Thick paper is used.
Documents with a small image area are printed continuously.

Solution:

(a) Adjust the textured paper mode

In [Detailed settings] for the custom paper you are using, select 1218: [Paper Transfer Output], and then set 01: [Output Mode] to [Textured Paper].

Select 1231: [Print Speed], and then set the following corresponding settings to [Low].

Productivity Priority

1231-01: Print Speed: BW/FC/FCS: BW/FC/FCS
1231-02: Print Speed: FCS: Clear/Special
1231-03: Print Speed: FCS: White
1231-04: Print Speed: FCS: Metallic
1231-06: Print Speed: S: Clear/Special
1231-07: Print Speed: S: White
1231-08: Print Speed: S: Metallic

High Quality

1231-10: Print Speed: BW/FC/FCS: Fuser Setting HQ: BW/FC/FCS
1231-11: Print Speed: FCS: Fuser Setting HQ: Clear/Special
1231-12: Print Speed: FCS: Fuser Setting HQ: White
1231-13: Print Speed: FCS: Fuser Setting HQ: Metallic
1231-15: Print Speed: S: Fuser Setting HQ: Clear/Special
1231-16: Print Speed: S: Fuser Setting HQ: White
1231-17: Print Speed: S: Fuser Setting HQ: Metallic

Print and check if J032 (paper jam due to failure to separate) occurs.

Yes	No further improvement is likely.
No	Go to next step.

Check to see if the mottling has been resolved.

Yes	Finished!
No	Go to next step.

Check to identify the problem (white spots or higher density on indentations).

White spots
1. Increase the value for [Paper Transfer Output] by one step.
  1214-03: Paper Transfer Output: BW: Side 1: AC
  1214-04: Paper Transfer Output: BW: Side 2: AC
  1214-07: Paper Transfer Output: FC/FCS: Side 1: AC
  1214-08: Paper Transfer Output: FC/FCS: Side 2: AC
  1214-11: Paper Transfer Output: FCS: Side 1: AC
  1214-12: Paper Transfer Output: FCS: Side 2: AC
  1214-21: Paper Transfer Output: S: Side 1: AC: Clear/Special
  1214-22: Paper Transfer Output: S: Side 1: AC: White
  1214-23: Paper Transfer Output: S: Side 1: AC: Metallic
  1214-25: Paper Transfer Output: S: Side 2: AC: Clear/Special
  1214-26: Paper Transfer Output: S: Side 2: AC: White
  1214-27: Paper Transfer Output: S: Side 2: AC: Metallic
2. Print the image. Has the problem been resolved?
  
  Yes
  Proceed to Step 6.
  No
  Repeat the adjustment of the paper transfer output.
3. Check if the density is too high.
  
  Yes
  Proceed to Step 6.
  No
  Finished!
Excessive Density on Indentations
1. Decrease the value for [Paper Transfer Output] by one step.
  1214-03: Paper Transfer Output: BW: Side 1: AC
  1214-04: Paper Transfer Output: BW: Side 2: AC
  1214-07: Paper Transfer Output: FC/FCS: Side 1: AC
  1214-08: Paper Transfer Output: FC/FCS: Side 2: AC
  1214-11: Paper Transfer Output: FCS: Side 1: AC
  1214-12: Paper Transfer Output: FCS: Side 2: AC
  1214-21: Paper Transfer Output: S: Side 1: AC: Clear/Special
  1214-22: Paper Transfer Output: S: Side 1: AC: White
  1214-23: Paper Transfer Output: S: Side 1: AC: Metallic
  1214-25: Paper Transfer Output: S: Side 2: AC: Clear/Special
  1214-26: Paper Transfer Output: S: Side 2: AC: White
  1214-27: Paper Transfer Output: S: Side 2: AC: Metallic
2. Print the image. Has the problem been resolved?
  
  Yes
  Proceed to Step 6.
  No
  Repeat the adjustment of the paper transfer output.
3. Check to see if white spots occur.
  
  Yes
  Proceed to Step 6.
  No
  Finished!

Select the best setting from among those with which you have printed.

(b) Execute Toner Refreshing.

Print 30 sheets of solid-fill images with 100% density for each color of CMYK.

In [Detailed settings] for custom paper, adjust the paper transfer output in 1214: [Paper Transfer Output].

1214-01: Paper Transfer Output: BW: Side 1
1214-02: Paper Transfer Output: BW: Side 2
1214-05: Paper Transfer Output: FC/FCS: Side 1
1214-06: Paper Transfer Output: FC/FCS: Side 2
1214-09: Paper Transfer Output: FCS: Side 1
1214-10: Paper Transfer Output: FCS: Side 2
1214-13: Paper Transfer Output: S: Side 1: Clear/Special
1214-14: Paper Transfer Output: S: Side 1: White
1214-15: Paper Transfer Output: S: Side 1: Metallic
1214-17: Paper Transfer Output: S: Side 2: Clear/Special
1214-18: Paper Transfer Output: S: Side 2: White
1214-19: Paper Transfer Output: S: Side 2: Metallic

(d) Adjust the image (intermediate) transfer output.

In [Detailed settings] for the custom paper you are using, select 1212: [Image Transfer Output], and then decrease the value in the following corresponding settings by 1.

1212-01: Image Transfer Output: BW: Black

1212-02: Image Transfer Output: FC/FCS: Black

1212-03: Image Transfer Output: FC/FCS: Cyan

1212-04: Image Transfer Output: FC/FCS: Magenta

1212-05: Image Transfer Output: FC/FCS: Yellow

1212-06: Image Transfer Output: FC/FCS: Clear/Special

1212-07: Image Transfer Output: FC/FCS: White

1212-08: Image Transfer Output: FC/FCS: Metallic

1212-10: Image Transfer Output: S: Clear/Special

1212-11: Image Transfer Output: S: White

1212-12: Image Transfer Output: S: Metallic

Note

Decreasing the image transfer output may result in an overall slightly fainter solid-fill image density.

(e) Increase the amount of toner adhesion.

In [Detailed settings] for custom paper, select 1201: [Maximum Image Density], and then increase value.

1201-01: Maximum Image Density: Black

1201-02: Maximum Image Density: Cyan

1201-03: Maximum Image Density: Magenta

1201-04: Maximum Image Density: Yellow

1201-05: Maximum Image Density: Clear/Special

1201-06: Maximum Image Density: White

1201-07: Maximum Image Density: Metallic

Note

Increasing the toner adhesion affects the page yield.

Note

Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver.

Yes	Proceed to Step 6.
No	Repeat the adjustment of the paper transfer output.