Copystar CS-1620, Service Manual

Page: 66 / 235

2C9
1-4-21
U093
Setting the exposure density gradient
Description
Changes the exposure density gradient in manual density mode, depending on respective image modes (text,
text and photo, photo).
Purpose
To set how the image density is altered by a change of one step in the manual density adjustment. Also used
to make copy image darker or lighter.
Start
1. Press the start key. A selection item appears.
2. Select the image mode to be adjusted by lighting image mode LEDs using the image mode selection
key.
: Off, : On
Setting
1. Select the item to be adjusted by lighting a copy exposure indicator using the copy exposure adjustment
keys.
2. Adjust the setting using the zoom +/- keys.
Increasing the setting makes the change in density larger, and decreasing it makes the change smaller.
Figure 1-4-5 Exposure density gradient
3. Press the start key. The value is set.
Test copy mode
While this maintenance item is being performed, copying from an original can be made in test copy mode.
Completion
Press the stop/clear key. The indication for selecting a maintenance item No. appears.
Maintenance
item No.
Description
Image mode LEDs Description
Density in text mode
Density in text and photo mode
Density in photo mode
Copy exposure
indicator
Description
Setting
range Initial
setting
Exp. 1 Change in density when manual density is set dark 0 to 3 0
Exp. 2 Change in density when manual density is set light 0 to 3 0
Image density
Density adjustment
Dark
Light
Light
Center Dark
Density adjustment range: Special area
Setting: 0 Setting: 3
Density adjustment range: Normal
Set to DARKER Set to LIGHTER