Canon BJC 50 Service Manual - Page 19

BJC-50 Part 1: Safety and Precautions 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. Head Cap Protection Tape Nozzles Cartridge Container Figure 1-5 BJ Cartridge 1-5