Canon imagePROGRAF iPF780 User Manual

9 Press ▲ or ▼ to select the pattern number you have decided, and then press the OK button.
Test pattern B is printed for adjustment.
Note
• If you printed test pattern A on a sheet, follow the instructions on the Display Screen and use another
sheet of the same type of paper.
Additionally, after test pattern B is printed, follow the instructions on the Display Screen and remove the
sheet.
10 Examine test pattern B for adjustment. Determine the pattern in which banding is least noticeable.
11 Press ▲ or ▼ to select the pattern number you have decided, and then press the OK button.
The adjustment value is now registered, and adjustment is complete.
Fine-Tuning the Paper Feed Amount
Fine-Tuning the Paper Feed Amount
If the contrast is uneven or banding in different colors appears at 50 mm (2.0 in) intervals in printed documents, try
executing Adj. Fine Feed during printing to fine-tune the feed amount.
Note
• The Adj. Fine Feed menu is only displayed during printing.
Additionally, it is displayed when you have selected Automatic or Print Quality in Adj. Priority in Feed Priority.
(See "Menu Settings.") ➔P.414
• Always execute Adj. Quality before Adj. Fine Feed.
Once you execute Adj. Quality, the Adj. Fine Feed value will revert to 0.
(See "Automatic Banding Adjustment.") ➔P.484
(See "Manual Banding Adjustment.") ➔ P.485
Perform adjustment as follows.
1
On the Tab Selection screen of the Control Panel, press ◀ or ▶ to
select the Settings/Adj. tab ( ).
Note
• If the Tab Selection screen is not displayed, press the Menu button.
2 Press the OK button.
The Set./Adj. Menu is displayed.
3 Press ▲ or ▼ to select Adj. Fine Feed, and then press the OK button.
4 Press ▲ or ▼ to select a setting value in the range -5 to 5, and then press the OK button.
At this time, if banding in dark colors appears, select a setting value in the range 1 to 5, and if banding in
light colors appears, select a setting value in the range -1 to -5.
Adjusting Line Length
Adjusting Line Length
To ensure that lines in CAD drawings are printed at exactly the right length, use Adjust Length to adjust the
amount that paper is advanced.
There are two options in Adjust Length : AdjustmentPrint and Change Settings.
• AdjustmentPrint
After a test pattern is printed, you will measure the discrepancy based on the results of printing.
• Change Settings
No test pattern is printed. Instead, you will measure a document already printed to determine the discrepancy.
iPF780 Fine-Tuning the Paper Feed Amount
User's Guide
Adjustments for Better Print Quality Adjusting the feed amount
487

Canon imagePROGRAF iPF780 Specifications

General

Color	Yes
Printing colors	Black, Cyan, Magenta, Matte black, Yellow
Print technology	Inkjet
Maximum resolution	2400 x 1200 DPI
Page description languages	GARO, HP-GL/2, HP-RTL
Media thickness	0.07 - 0.8 mm
Maximum print size	-
Media width (rolls)	254 - 914.4 mm
Media width (sheets)	203.2 - 914.4 mm
Maximum roll diameter	150 mm
Paper tray media types	Coated paper, Cut sheet, Plain paper, Roll
ISO A-series sizes (A0...A9)	A0, A1, A2, A3
ISO B-series sizes (B0...B9)	B1, B2, B4
USB connector	USB Type-A
USB 2.0 ports quantity	1
Ethernet LAN data rates	10/100/1000 Base-T/TX Mbit/s
Ethernet interface type	Gigabit Ethernet
Certification	RoHS
Product color	Black, Grey
Internal memory	256 MB
Sound pressure level (printing)	48 dB
Compliance industry standards	IEEE 802.3ab, IEEE 802.3u, IEEE 802.3
Power consumption (standby)	0.5 W
Power consumption (typical)	140 W
Storage temperature (T-T)	15 - 30 °C
Operating relative humidity (H-H)	20 - 80 %
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth	877 mm
Width	1304 mm
Height	1062 mm