Ink Mist - Canon BJC-8500 Service Manual

BJC-8500 Part 1: Safety and Precautions
The ink path includes the filters of the Black BJ cartridge [BC-80], Color BJ cartridge
[BC-81] and Photo BJ cartridge [BC-82 photo], and each ink outlet of the ink tanks.
Take care of the ink path when handling BJ cartridges and ink tanks.
Never unnecessarily remove ink tanks from BJ cartridges. When an ink tank is
removed from a BJ cartridge, air can enter the ink path and may adversely affect
printing. If an ink tank is removed from a BJ cartridge, carry out cleaning. (Cleaning
is automatically carried out when the ink tank is attached after a no ink tank error is
detected. For details, see "Part 4: TABLE 4-7 CLEANING EXECUTION CONDITIONS,
CLEANING TIME AND INK SUCTION AMOUNTS." (page 4-25) )
Ink Outlet
Filter
Black BJ Cartridge
Color BJ Cartridge Photo BJ Cartridge
BC-80
BC-81 BC-82 Photo
Figure 1-3 BC-80, BC-81, and BC-82 Photo

1.2.2 Ink mist

With the BJ cartridges used on this printer, minute ink droplets rise up and bounce
back from the paper during printing as "ink mist." This printer generates a much
larger amount of ink mist than conventional Canon printers. As a countermeasure,
two fans, A and B, are provided to create an air path to draw the ink mist behind fan
B into the ink mist absorber. Fan A pulls in air, while fan B sucks in this blown air.
When servicing or disassembling this printer, wear gloves. Hands, fingers or clothes
may become soiled by this ink mist. If necessary, wipe off ink mist using a soft cloth
moistened with water.
Fan B Ink Mist Absorber
Fan A
Figure 1-4 Ink Mist
1-3