Canon ImagePROGRAF iPF650 Series User Manual

Chapter 2
2-26
2.3.2.5 Purge Unit
2.3.2.5.1 Functions of Purge Unit
0023-2473
iPF650 / iPF655
To maintain high print quality, the purge unit performs maintenance of the nozzles o the printhead.
The purge unit supports a capping function, cleaning function, and ink supply function.
F-2-17
a) Capping function
The capping function presses the cap of the purge unit against the face plate on the nozzle section of the printhead to prevent nozzle drying and dust adhesion.
Capping is performed when printing is complete, at the start of the suction operation, and when switching to the standby state due to an error.
The capping function also establishes the ink passage between the printhead and purge unit.
b) Cleaning function
The cleaning function restores the printhead to the state where ink can be easily discharged from nozzles. This function includes the following three types of oper-
ations.
- Wiping operation
This operation is performed to remove paper fibers and dried ink from to the face plate.
- Pumping operation
This operation is performed to remove ink from the nozzles and fill the nozzles with fresh ink.
- Maintenance jet operation
This operation is performed to spray ink from the nozzles to the cap, maintenance jet ink groove of the platen to remove bubbles in the nozzles and dust and other
foreign particles.
c) Ink supply function
The suction pump of the purge unit operates together with the ink supply valve to supply ink to the printhead during the initial filling and ink level adjustment.
Purge Unit

Canon ImagePROGRAF iPF650 Series Specifications

General

Maximum Print Resolution	2400 x 1200 dpi
Number of Ink Colors	5
Maximum Media Width	24 inches
Interface	USB 2.0, Ethernet
Weight	approximately 97 lbs
Technology	Inkjet
Number of Nozzles	15, 360
Cutter	Automatic
Memory	256 MB
Interface Type	USB 2.0, Ethernet
Power Supply	AC 100-240V (50-60Hz)
Dimensions (W x D x H)	39.3 x 34.3 x 42.2 inches
Printer Type	Large Format Printer
Print Technology	Inkjet
Ink Type	Dye/Pigment Reactive Ink
Media Width	8 - 24 in
Media Thickness	0.07 - 0.8 mm
Roll Paper Size	8 - 24 in
Hard Drive	No
Operating System Compatibility	Windows, Mac
Power Consumption (Operating)	140W (or less)
Media Sizes	Up to 24 inches
Operating Systems Supported	Windows, Mac
Power Consumption	140W (or less)