Canon W6400 Series Service Manual

Contents

Chapter 44-20Perform manual ink drainage using the three steps described below.Step 1: Simultaneously send the ink from all six colors contained in the ink tube unit to the maintenance cartridge.Step 2: Send the ink in the ink tanks to the cartridge one color at a time.Step 3: Repeat Step 2 for the remaining five colors.If all of the ink passages are opened (ink tank is not installed, ink supply valve is opened, and printhead lock lever is opened) when ink fills the ink tube,the ink in the ink tube may reverse-flow due to the difference in the water head, and ink may leak from the ink supply needle. Therefore, do not open allof the ink passages at the same time when the ink tube is filled with ink.F-4-39c) Manual ink drainage procedureStep 11) Remove the right cover. For details, refer to DISASSEMBLY/REASSEMBLY > Points to Note on Disassembly and Reassembly > Outer covers.2) Remove the ink tank.3) Remove the joints for the ink tube unit and ink tank unit. For details, refer to DISASSEMBLY/REASSEMBLY > Points to Note on Disassembly andReassembly > Ink tank unit.4) Place the joint for the ink tube unit side in the ink flow path at the back of the ink tank unit.5) Move the carriage over the platen. For details, refer to DISASSEMBLY/REASSEMBLY > Points to Note on Disassembly and Reassembly > Openingthe Caps and Moving the Wiper Unit.6) Unlock the printhead lock lever to allow all the ink for all six colors in the ink tubes to flow simultaneously to the maintenance cartridge.Step 27) Connect the syringe ink tube to the needle of the subbuffer. Pull the plunger of the syringe to remove the ink inside the sub buffer and discard to themaintenance cartridge. Repeat until there is no more ink left.8) Open the ink supply valve. For details, refer to Part 5: 5.4 Opening and Closing the Ink Supply Valve.9) Connect the syringe ink tube to the supply side needle. Pull the plunger of the syringe to remove the ink inside the ink supply unit and discard to themaintenance cartridge. Repeat until there is no more ink left.F-4-40Step 310) Repeat Step 2 for all colors until there's no more ink left.* This figure shows the main access points for manual ink drainage.Carriage unitMaintenance cartridgeInk supply valveSubbufferStep1Step 3 Repeated for the remaining five colors.Step 1Step 1Step 1Step 1Step2JointStep 2Ink supply side needleSubbuffer side needle