Canon BJC-55 Series, Service Manual

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2. MACHINE PRECAUTIONS
2.1 BJ Cartridge
2.1.1 BJ cartridge handling
To prevent clogging at the nozzles due to foreign matters, never touch the nozzle
section of the BJ cartridge or wipe it off with tissue paper or the like. For the BJ
cartridge, take the same care with the ink filter of the print head body to prevent poor
ink suction due to foreign matters. Also, once you have removed the head cap and
peeled off the protection tape from a BJ cartridge, either install the BJ cartridge in the
printer or store it in the cartridge container to prevent clogging at the nozzles due to
ink drying or foreign objects. Do not reinstall the removed print head cap and
protection tape on the BJ cartridge. For the BJ cartridge, either install it in the
printer with the ink cartridge installed or store it in the cartridge container. If the ink
cartridge is not attached, poor ink suction due to ink drying or foreign matters can
occur. BJ cartridges cannot be disassembled, assembled, or washed.
If clogging at the nozzles or poor ink suction occurs, horizontal white lines
appear in part of the printing. If cleaning does not restore proper printing,
you must replace the BJ cartridge.
1-5
BJC-50
Part 1: Safety and Precautions
Head Cap
Nozzles
Protection Tape
Cartridge Container
Figure 1-5 BJ Cartridge