Canon FAX-B840 User Manual

Also see for FAX-B820: User guide Service manual

Contents

56Periodic cleaningYour fax requires little periodic maintenance. Please note the following before cleaning:• Be sure to disconnect the power cord before cleaning the fax. Since documents in memory are erased when thepower is disconnected, print any documents stored in memory before disconnecting the power cord (see p. 33).• Do not use tissue paper, paper towels, or similar materials for cleaning; they can stick to the components orgenerate static charges.Cleaning the exterior of the faxCleaning the interior of the fax■ Cleaning inside the printer coverTo prevent ink spots and paper dust from accumulating inside the fax and affecting print quality, clean the print areaof the fax periodically.Never use volatile liquids such as thinners, benzene, acetone, or any other chemical cleaner to clean the interior of thefax.1 Disconnect the power cord from the fax.2 Wipe the exterior of the fax with a clean, soft, lint-free cloth moistened with water or diluteddishwashing detergent solution.3 When you are finished, reconnect the power cord.1 Disconnect the power cord from the fax, then open the printer cover.Do not touch the components or any metal parts.2 Use a clean, soft, dry, lint-free cloth to remove anyink or paper debris from the interior of the fax(shaded area), especially around the four pinchrollers.• Dirt and dust particles that collect on the underside of the printer coveraffect the quality of the documents you copy or send.• Be careful not to touch the BJ cartridge or its holder.3 When you are finished, close the printer cover andreconnect the power cord.Be sure to close the printer cover until it locks into place.Pinch rollers