
2. Copier-specific Adjustments
Procedures
*You can start with any of the procedures. But it is recommended to perform the procedures in order, as listed below. You can use one procedure in conjunction with another. But if this changes the image quality more than required or loses effectiveness of the adjustment, restore the settings made in the previously used procedure to the original. Then perform the next procedure.
*Procedure (1) is used by the service technician, and by the user.
*Procedure (2) is used by the service technician only.
(1) Press the [BASIC] button on the Control Panel. Press the [ZOOM] button. Specify an original size and a copy size.
*When a
After specifying the original size and copy size, copy and check the copy image quality.
If further image quality adjustments are still necessary, the service technician must use the next procedure.
(2) Enter adjustment mode [05]. Change the values for codes [1675/1676] to adjust the threshold value in Auto color mode.
*As the set value is increased, the original will be more likely to be recognized as
| Threshold to be adjusted |
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| [05] code |
| Acceptable |
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| Threshold when an original is manually |
| 0 to 255 | |||
| placed on the original glass |
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| Threshold when an original is placed on the |
| 0 to 255 | |||
| original glass from the RADF |
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Default
70
70
*Set the value in increments of approximately 30, while checking the copy image until the optimum value is obtained.
Cautions after the completion of the adjustment
•When a
•After the threshold in Auto color mode is adjusted, based on a particular type of original, other types of original may not be correctly detected. Therefore, carefully perform the adjustment, while checking whether any type of original is correctly detected.