Canon BJC 50 Service Manual - Page 110
Canon BJC 50 - Color Inkjet Printer Manual
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Part 4: Technical Reference BJC-50 3.2.2 Black BJ cartridge structure The black BJ cartridge contains a 128-nozzle print head, and the print head and black ink cartridge can be replaced respectively. a) Air hole Air hole is provided in order to keep the ink cartridge at the same pressure as the outer atmospheric pressure. b) Ink sponge The ink sponge absorbs black ink. c) Ink supplier The ink supplier supplies a constant amount of ink to the connection between the head and ink cartridge. d) Bubble jet head unit The bubble jet head unit consists of the 128 nozzles and signal contacts. Figure 4-15 Black BJ Cartridge 4-22
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3.2.2 Black BJ cartridge structure
The black BJ cartridge contains a 128-nozzle print head, and the print head and
black ink cartridge can be replaced respectively.
a) Air hole
Air hole is provided in order to keep the ink cartridge at the same pressure as the
outer atmospheric pressure.
b) Ink sponge
The ink sponge absorbs black ink.
c) Ink supplier
The ink supplier supplies a constant amount of ink to the connection between the
head and ink cartridge.
d) Bubble jet head unit
The bubble jet head unit consists of the 128 nozzles and signal contacts.
Part 4: Technical Reference
BJC-50
4-22
Figure 4-15 Black BJ Cartridge