- KCMY Color Balance Adjustment -
The adjustment uses only "Offset" values.
- Never change "Option" values (the default value is 0).
Highlight (Low ID) | Levels 1 through 6 in the C5-Y chart 13-level scale |
Middle (Middle ID) | Levels 3 through 10 in the C5-Y chart 13-level scale |
Shadow (High ID) | Levels 7 through 12 in the C5-Y chart 13-level scale |
ID max | Level 13 in the C5-Y chart 13-level scale (affects the entire image density) |
Offset | The higher the number in the range associated with the low ID, middle ID, high ID, and ID max, the greater the density. |
There are four adjustable modes (can be adjusted with SP4-918-009):
- Copy Photo mode
- Copy Letter mode
- Copy Letter (Single Color) mode
- Copy Photo (Single Color) mode
- Adjustment Procedure -
- Copy the C-5Y chart in the mode that you want to adjust.
- Enter the SP mode.
- Select "System SP."
- Select SP4-918-009.
Adjust the offset values until the copy quality conforms to the standard (see the table below).
- 1. Never change the "Option" value (the default value is "0").
- 2. Adjust the density in this order: "ID Max", "Middle", "Shadow", "Highlight".
- Photo Mode, Full Color -
Item to Adjust | Level on the C-5Y chart | Adjustment Standard | |
1 | ID max: (K, C, M, and Y) | Adjust the offset value so that the density of level 13 matches that of level 13 on the C-5Y chart. | |
2 | Middle (Middle ID) (K, C, M, and Y) | Adjust the offset value so that the density of level 7 matches that of level 7 on the C-5Y chart. | |
3 | Shadow (High ID) (K, C, M, and Y) | Adjust the offset value so that the density of level 11 matches that of level 11 on the C-5Y chart. | |
4 | Highlight (Low ID) (K, C, M, and Y) | Adjust the offset value so that dirty background does not show on the copy and the density of level 3 is slightly lighter than that of level 3 on the C-5Y chart. | |
5 | K Highlight (Low ID) (C,M, and Y) <on the full color copy> | Adjust the offset value so that the color balance of black scale levels 3 through 5 in the copy is seen as gray (no C, M, or Y should be visible). If the black scale contains C, M, or Y, do steps 1 to 4 again. |
- Photo Mode, Single Color -
Item to Adjust | Level on the C-5Y chart | Adjustment Standard | |
1 | ID max: (K) | Adjust the offset value so that the density of level 13 matches that of level 13 on the C-5Y chart. | |
2 | Middle (Middle ID) (K) | Adjust the offset value so that the density of level 7 matches that of level 7 on the C-5Y chart. | |
3 | Shadow (High ID) (K) | Adjust the offset value so that the density of level 11 matches that of level 11 on the C-5Y chart. | |
4 | Highlight (Low ID) (K) | Adjust the offset value so that dirty background does not show on the copy and the density of level 3 is slightly lighter than that of level 3 on the C-5Y chart. |
- Text (Letter) Mode, Full Color -
Item to Adjust | Level on the C-5Y chart (K) | Adjustment Standard | |
1 | ID max: (K, C, M, and Y) | Adjust the offset value so that the density of level 13 matches that of level 13 on the C-5Y chart. | |
2 | Middle (Middle ID) (K, C, M, and Y) | Adjust the offset value so that the density of level 7 matches that of level 7 on the C-5Y chart. | |
3 | Shadow (High ID) (K, C, M, and Y) | Adjust the offset value so that the density of level 11 matches that of level 11 on the C-5Y chart. | |
4 | Highlight (Low ID) (K, C, M, and Y) | Adjust the offset value so that dirty background does not show on the copy and the density of level 3 is slightly lighter than that of level 3 on the C-5Y chart. |
- Text (Letter) Mode, Single Color -
Item to Adjust | Level on the C-5Y chart (K) | Adjustment Standard | |
1 | ID max: (K) | Adjust the offset value so that the density of level 13 matches that of level 13 on the C-5Y chart. | |
2 | Middle (Middle ID) (K) | Adjust the offset value so that the density of level 7 matches that of level 7 on the C-5Y chart. | |
3 | Shadow (High ID) (K) | Adjust the offset value so that the density of level 11 matches that of level 11 on the C-5Y chart. | |
4 | Highlight (Low ID) (K) | Adjust the offset value so that dirty background does not show on the copy and the density of level 3 is slightly lighter than that of level 3 on the C-5Y chart. |
- Text parts of the test pattern cannot be printed clearly after you adjust "shadow" as shown above. At this time, check if the 5 line/mm pattern at each corner is printed clearly. If it is not, adjust the offset value of "shadow" again until it is.