Canon imagePROGRAF iPF780 User Manual

4 Press ▲ or ▼ to select Test Print, and then press the OK button.
5 Press ▲ or ▼ to select Nozzle Check, and then press the OK button.
The printer now prints a test pattern for checking the nozzles.
6
Check the printing results.
If the horizontal lines are not faint or incomplete, the nozzles
are clear.
If some sections of the horizontal lines are faint or incomplete,
the nozzles for those colors are clogged.
If horizontal lines are faint or incomplete, follow the steps be-
low and check again for nozzle clogging.
1. Clean the Printhead. (See "Cleaning the Printhead.") ➔ P.501
2. Print a test pattern to check the nozzles.
Note
• If you repeat these steps several times but the horizontal lines are still faint or incomplete, the Printhead may have
reached the end of its useful life. Contact your Canon dealer for assistance.
Cleaning the Printhead
Cleaning the Printhead
If printing is faint, cleaning the Printhead may improve results.
Choose one of two Printhead cleaning modes ( Head Cleaning A or Head Cleaning B ), depending on the prob-
lem to resolve.
• Head Cleaning A
Use this mode if printing is faint or contains foreign substances. This method of cleaning consumes the least
amount of ink.
It takes about three minutes to complete.
• Head Cleaning B
Use this mode if no ink is ejected at all, or if Head Cleaning A does not solve the problem.
It takes about three and a half minutes to complete.
Important
• Do not remove the Maintenance Cartridge or ink tanks during either Head Cleaning A or Head Cleaning B.
Ink may leak or an error may occur.
• If printing does not improve even if you execute Head Cleaning B, try repeating Head Cleaning B once or twice.
If this still does not improve printing, the Printhead may have reached the end of its useful life. Contact your Can-
on dealer for assistance.
Note
• By default, nozzles are checked at fixed intervals.
Configure the settings on the Control Panel menu in Nozzle Check.
(See "Menu Settings.") ➔P.414
Perform cleaning 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.
iPF780 Cleaning the Printhead
User's Guide
Maintenance and Consumables Printheads
501

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