Kyocera KM-C2520 Service Manual page 122

2FZ/2F0/2HC-3
Maintenance
item No.
Setting the compression ratio
U470
Description
Sets the compression ratio coefficient for each compression level based on the quantum chart for JPEG
brightness and color differential.
Purpose
To change the setting in accordance with the image that the user is copying. For example, in order to soften
the coarseness of the image when making copies at over 200% magnification, change the level of compres-
sion by raising the value. Lowering the value will increase the compression and thereby lower the image qual-
ity; Raising the value will increase image quality but lower the image processing speed.
Start
1. Press the start key.
2. Select the item to be set. The setting screen for the selected item is displayed.
Display
Y_DATA Rate
C_DATA Rate
PDF_DATA Rate
Setting: JPEG compression ratio (brightness)
1. Select the item to be set.
2. Change the setting value using the cursor up/down keys.
Display
COPY
NW SCAN(1)
NW SCAN(2)
NW SCAN(3)
NW SCAN(4)
NW SCAN(5)
3. Press the start key. The value is set.
Setting: JPEG compression ratio (color differential)
1. Select the item to be set.
2. Change the setting value using the cursor up/down keys.
Display
COPY
NW SCAN(1)
NW SCAN(2)
NW SCAN(3)
NW SCAN(4)
NW SCAN(5)
3. Press the start key. The value is set.
Setting: PDF compression ratio (brightness and color differential) with optional UG-31 installed
1. Select the item to be set.
2. Change the setting value using the cursor up/down keys.
Display
Y(1)
Y(2)
Y(3)
C(1)
C(2)
C(3)
3. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
1-3-82
Description
Description
JPEG compression ratio (brightness)
JPEG compression ratio (color differential)
PDF compression ratio (brightness and color differential) with optional UG-31
installed
Setting range
1 to 100
1 to 100
1 to 100
1 to 100
1 to 100
1 to 100
Setting range
1 to 100
1 to 100
1 to 100
1 to 100
1 to 100
1 to 100
Setting range
1 to 100
1 to 100
1 to 100
1 to 100
1 to 100
1 to 100
Initial setting
85
30
40
50
80
95
Initial setting
85
30
40
50
80
95
Initial setting
15
25
60
15
25
60