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Canon ImagePROGRAF iPF650 Series User Manual

Canon ImagePROGRAF iPF650 Series
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Chapter 2
2-18
2.3.2 Ink Passage
2.3.2.1 Ink Passage
2.3.2.1.1 Overview of Ink Passage
0023-1470
iPF650 / iPF655
The ink passage houses the ink tank, printhead, caps, maintenance jet tray, maintenance cartridge, waste ink collector, ink tubes interconnecting the mechanical
units, suction pump driven mainly for sucking inks and so on. Its functions include supplying, circulating and sucking inks.
The ink passage (per color) is schematically shown below, along with the ink flow.
F-2-9
a) Supplying inks from the ink tanks to the ink supply valve assembly
The ink tanks each contain an ink to feed the printhead.
Head differences allow the inks to flow from the ink tanks to the subtanks first, then to the ink supply valves throught the ink passage valves.
Air is discharged through the air passage of the subtanks to keep the internal pressure of the ink tanks constant.
b) Supplying inks from the ink supply valves to the printhead
The ink stored in an ink tank flows to the printhead when the suction pump is driven with the ink supply valve opened and the head capped.
The ink sucked from the caps flows to the maintenance cartridge.
c) Supplying inks while printing
The ink supply valves and ink passage valves are kept open while printing, so that inks are constantly feeding to the printhead under the negative pressure of the
nozzle assembly caused by discharging inks.
Further, waste inks sucked in a cleaning operation and inks from the maintenance jet tray flow into the maintenance cartridge.
If all of ink passages are opened (no ink tank is installed, the ink supply valve is opened, the ink passage valve is opened, and the printhead fixer lever is opened)
when the ink tube is filled with ink, the ink in the ink tube may reverse-flow due to the fluid level difference and ink may leak from the hollow needle of the ink tank.
Do not open all of the ink passages at the same time when the ink tube is filled with ink.
d) Agitation of ink in the ink tank
Ink in the ink tank and the sub tank are agitated to prevent precipitation of pigment-based ink in the ink tank and sub tank.
This function is implemented by reverse-flowing ink to the ink tank and sub tank by opening and closing the ink supply valve and ink passage valve in succession.
Inside the ink tank is provided with an agitation plate to assist agitation of ink. (The agitation plate is also provided in the dye ink tank.
- Operation timing: When a new ink tank is installed or when 168 hours have lapsed since the previous agitation (the agitation is performed irrespective of the
whether the printer is printing or cleaning its head)
- Ink supply valve opening/closing count: 30 times (every 30 seconds)
If 336 or more hours have lapsed, the ink valve opening/closing count and the time until the next agitation are changed according to the length of the tame lapsed.
Cap
Waste PBK inkWaste ink except PBK
Suction Pump
Ink Tank
Sub Tank
Air passage
Ink Passage Valve
Needle(ink supply)
Sub Tank ink remaining
detection needle
Ink Supply Valve
Agitation plate
Mechanical Drive Unit
Ink flow
Maintenance Cartridge
Joint
Carriage Unit
Needle(air passage)
Printhead

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Canon ImagePROGRAF iPF650 Series Specifications

General IconGeneral
Maximum Print Resolution2400 x 1200 dpi
Number of Ink Colors5
Maximum Media Width24 inches
InterfaceUSB 2.0, Ethernet
Weightapproximately 97 lbs
TechnologyInkjet
Number of Nozzles15, 360
CutterAutomatic
Memory256 MB
Interface TypeUSB 2.0, Ethernet
Power SupplyAC 100-240V (50-60Hz)
Dimensions (W x D x H)39.3 x 34.3 x 42.2 inches
Printer TypeLarge Format Printer
Print TechnologyInkjet
Ink TypeDye/Pigment Reactive Ink
Media Width8 - 24 in
Media Thickness0.07 - 0.8 mm
Roll Paper Size8 - 24 in
Hard DriveNo
Operating System CompatibilityWindows, Mac
Power Consumption (Operating)140W (or less)
Media SizesUp to 24 inches
Operating Systems SupportedWindows, Mac
Power Consumption140W (or less)

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