Canon BJC 6000 Service Manual - Page 91

BJ Cartridge, Construction of the Black BJ cartridge, Black BJ Cartridge

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BJC-6000 Part 4: Technical Reference 3.2. BJ Cartridge 3.2.1 Construction of the Black BJ cartridge The Black BJ cartridge has a 160-nozzle multi-drop bubble jet head and a detachable black ink tank. a) Air path Keeps the pressure inside the ink tank constant with the external atmospheric pressure. b) Ink chamber Loaded with black ink. The ink in the ink chamber will be supplied via the sponge to the BJ head. A sensor is used to check for ink. c) Ink sponge Saturated with black ink. d) Ink supply piece Supplies constant quantity of ink to the joint between the bubble jet head and ink tank. e) Ink filter Keeps foreign matter from entering the bubble jet head. f) Bubble jet head Consists of 160 nozzles and signal contacts. It discharges the ink supplied from the ink tank according to the print signals it receives via the signal contacts. Each nozzle has two heater boards inside, one large and one small, for discharging ink. By controlling the driving of the heater boards, multi-drop driving is conducted. Label Air Path Ink Chamber Ink Sponge Ink Supply Piece Ink Filter Bubble Jet Head Figure4-14 Black BJ Cartridge 4-19

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3.2.
BJ Cartridge
3.2.1
Construction of the Black BJ cartridge
The Black BJ cartridge has a 160-nozzle multi-drop bubble jet head and a detachable
black ink tank.
a) Air path
Keeps the pressure inside the ink tank constant with the external atmospheric
pressure.
b) Ink chamber
Loaded with black ink.
The ink in the ink chamber will be supplied via the sponge
to the BJ head.
A sensor is used to check for ink.
c) Ink sponge
Saturated with black ink.
d) Ink supply piece
Supplies constant quantity of ink to the joint between the bubble jet head and ink
tank.
e) Ink filter
Keeps foreign matter from entering the bubble jet head.
f) Bubble jet head
Consists of 160 nozzles and signal contacts.
It discharges the ink supplied from the
ink tank according to the print signals it receives via the signal contacts.
Each
nozzle has two heater boards inside, one large and one small, for discharging ink.
By controlling the driving of the heater boards, multi-drop driving is conducted.
4-19
BJC-6000
Part 4: Technical Reference
Air Path
Ink Sponge
Bubble Jet Head
Ink Supply Piece
Ink Filter
Label
Ink Chamber
Figure4-14 Black BJ Cartridge