Canon S520 Service Manual

Also see for S 820: Paper guide User guide Setup instructions Service manual Quick start guide

Contents

3. DISASSEMBLY AND REASSEMBLY3.1 Cautions for Disassembly and Reassembly3.1.1 Cautions against ink stains (ink path/ink mist)During servicing, be careful not to touch the ink path and get ink stains on theprinter, work surface, your hands or clothing.The ink path includes the print head's ink tank section supply inlet, the print head'sink filter, the ink nozzles, head cap, wiper, and waste-ink absorber.Also, in printers which have seen long-term or heavy-duty use, minute quantities ofink rebounding off the paper surface may have led to the buildup of ink mist, coatingthe platen, inside the front cover, and the purge section.3.1.2 Damage due to static electricityFriction with clothing can cause a build up of static electricity on the human body.Static electricity can destroy electrical components or alter the electricalcharacteristics of components.Be extra careful when handling the logic board.3.1.3 Deformation of spur tipsBe careful not to deform the spur tips.The spur tips contact the paper after printing has taken place. Since the spur tips'contact area is small, any ink adhering to the spur will be a minuscule amount whichcan be wiped off by the spur cleaner so as not to dirty the paper. However, if the spurtips are bent of out of shape, the size of the contact area with the paper increases,along with the quantity of ink which can adhere to the spurs. If the spur cleanercannot completely wipe off such an amount, the spurs will stain the paper with adotted line.2-13S900 / S820 / S750 / S520 Part 2: Troubleshooting Troubleshooting