2KR/2KS
1-3-93
U470
Setting the JPEG compression ratio
Description
Sets the compression ratio for JPEG images in each image quality mode.
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.
Method
1. Press the start key.
2. Select the item to be set. The setting screen for the selected item is displayed.
Setting: [System]
1. Select the item to be set.
2. Change the setting value using the +/- or numeric keys.
3. Press the start key. The value is set.
Setting: [Copy]
1. Select the item to be set.
2. Change the setting value using the +/- or numeric keys.
3. Press the start key. The value is set.
Setting: [Send]
1. Select [Text], [Photo] or [HC-PDF].
2. Select the item to be set.
3. Change the setting value using the +/- or numeric keys.
4. Press the start key. The value is set.
Maintenance
item No.
Description
Display
Description
System
Compression ratio for temporary storage in system
Copy
Compression ratio for copying
Send
Compression ratio for sending
Display
Description
Setting range
Initial setting
Y
Brightness
1 to 100
90
C
Color differential
1 to 100
90
Display
Description
Setting range
Initial setting
Text Y
Brightness in the text mode
1 to 100
90
Text C
Color differential in the text mode
1 to 100
90
Photo Y
Brightness in the photo mode
1 to 100
90
Photo C
Color differential in the photo mode
1 to 100
90
Display
Description
Setting
range
Initial
setting
Text Y (1) to (5)
Brightness in the text mode
1 to 100
30/40/51/70/90
Text C (1) to (5)
Color differential in the text mode
1 to 100
30/40/51/70/90
Photo Y (1) to (5)
Brightness in the photo mode
1 to 100
30/40/51/70/90
Photo C (1) to (5)
Color differential in the photo mode
1 to 100
30/40/51/70/90
HC-PDF Y (1) to (3)
Brightness of high compression PDF
1 to 100
15/25/60
HC-PDF C (1) to (3)
Color differential of high compression PDF 1 to 100
15/25/60
Summary of Contents for TASKalfa 420i
Page 1: ...SERVICE MANUAL Published in May 2010 842KS113 2KSSM063 Rev 3 TASKalfa 420i TASKalfa 520i ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 14: ...2KR 2KS This page is intentionally left blank ...
Page 224: ...2KR 2KS 1 4 66 This page is intentionally left blank ...
Page 328: ...2KR 2KS 2 3 30 This page is intentionally left blank ...
Page 371: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 381: ...INSTALLATION GUIDE FOR 3000 SHEETS PAPER FEEDER ...
Page 436: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 450: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 458: ...INSTALLATION GUIDE FOR HOLE PUNCH UNIT ...
Page 470: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 483: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 491: ...INSTALLATION GUIDE FOR FAX System ...
Page 507: ......
Page 508: ......