Toshiba e-STUDIO281c, 451C, 351C manual ‰ Procedures, Threshold to be adjusted Code Acceptable

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 non-standard sized original is copied, an area outside the original (or the original cover) may also be scanned. This may prevent the original size from being accurately detected. If the original size is specified in the reduction and enlargement copying function beforehand, the area outside the original will no longer be scanned. As a result, the original size will be accurately detected. Also, clean the original cover, if it is soiled. Otherwise, the type of original cannot be accurately detected.

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 black-and-white. On the other hand, if the value is decreased, it will be more likely to be recognized as full color.

Threshold to be adjusted		[05] code	Acceptable
			value range
Threshold when an original is manually	05-1675		0 to 255
placed on the original glass
Threshold when an original is placed on the	05-1676		0 to 255
original glass from the RADF (MR-3018)

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 non-standard sized original is copied, an area outside the original (or the original cover) may also be scanned. This may prevent the original size from being accurately detected. If the original cover is soiled, the type of original cannot be accurately detected. Therefore, instruct the user to clean the original cover on a routine basis (once a week).

•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.

e-STUDIO281c/351c/451c 2.15