Canon Imageclass Mf7470 User Guide
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Maintenance 10‑2 Cleaning the Machine Note the following before cleaning your machine: Make sure no document is stored in memory, then turn off the main power switch and disconnect the power cord. Use a soft cloth to avoid scratching the components. Do not use tissue paper, paper towels, or similar materials for cleaning; they can stick to the components or generate static charges. Never use volatile liquids such as thinners, benzene, acetone, or any other chemical cleaner to clean the machine. These can damage the machine components. Exterior – – – 1 Turn off the main power switch and disconnect the power cord. 2 Wipe the machine's exterior with a clean, soft, lint-free cloth dampened with water or diluted dishwashing detergent solution. 3 Wait for the machine to dry, then reconnect the power cord and turn on the main power switch.
10‑3 Maintenance Fixing Unit If black streaks appear on the printed page, the fixing unit in the main unit may be dirty. Should this occur, use the Fixing Unit Cleaning function to clean the fixing unit. The fixing unit should also be cleaned each time the cartridge is replaced. Print the cleaning pattern on LTR paper for cleaning the fixing unit. 1 Press (Additional Functions). 2 3 4 The cleaning paper is printed. You will use this paper as the cleaning paper. 5 Open the stack bypass.
Maintenance 10‑4 6 Load the cleaning paper with the printed side facing up, inserting the white edge into the stack bypass first. 7 ① Select [LTR]. ② Press [Next]. 8 ① Select [Plain]. ② Press [OK]. 9 While the fixing unit is being cleaned, the screen below appears. Cleaning the fixing unit takes approximately 100 seconds. The cleaning process cannot be canceled. Please wait until it is completed. The display returns to the Adjustment/ Cleaning screen. 10 11 The cleaning paper is printed. – –
10‑5 Maintenance 12 Load the cleaning paper with the printed side facing down, inserting the white edge into the stack bypass first. 13 Repeat steps 7 to 9 to clean the fixing unit. 14 Press [Done] repeatedly until the Basic Features screen appears. Discard the cleaning sheets after use.
Maintenance 10‑6 Scanning Area Keep the scanning area clean to avoid dirty copies or faxes to be sent. Platen Glass and Underside of the Feeder When cleaning the machine, first turn off the main power switch, and disconnect the power cord. Failure to observe these steps may result in a fire or electrical shock. If the platen glass or the underside of the feeder is dirty, the origina\ l may not be scanned clearly, or the size of the original may be detected incorrectly. Ô 1 Clean the platen glass and the underside of the feeder with a cloth dampened with water, and then wipe them clean with a soft, dry cloth. Do not dampen the cloth too much, as this may damage the original or break the machine.
10‑7 Maintenance Manual Feeder Cleaning If your originals have black streaks or appear dirty after scanning them through the feeder, this may be caused by pencil writing rubbing off the originals and onto the roller. Perform this feeder cleaning procedures to clean the feeder scanning area, film, and rollers. When cleaning the machine, first turn off the main power switch, and disconnect the power cord. Failure to observe these steps may result in a fire or electrical shock. Do not dampen the cloth too much, as this may damage the original or break the machine. If the feeder scanning area is dirty, it may result in a paper jam or bl\ emished print output. Spin the rollers while cleaning them. Ô – – 1 Open the feeder cover. 2 Clean the rollers (a total of three places) inside the feeder cover with a cloth dampened with water. Then wipe the area with a soft, dry cloth. 3 Open the inner cover (A), holding it by its front tab. 4 Clean the rollers (A) inside the inner cover with a cloth dampened with water. Then wipe the area with a soft, dry cloth.
Maintenance 10‑8 5 Clean the transparent plastic part of the inner cover with a cloth dampened with water. Then wipe the area with a soft, dry cloth. 6 Close the inner cover. Be careful not to get your fingers caught. 7 Close the feeder cover. Be careful not to get your fingers caught. 8 Open the feeder. 9 Clean the feeder scanning area (A) and the document feeding roller (B), with a cloth dampened with water. Then wipe the area with a soft, dry cloth.
10‑9 Maintenance 10 Close the feeder. Be careful not to get your fingers caught. Automatic Feeder Cleaning If your originals have black streaks or appear dirty after scanning them through the feeder, clean the rollers of the feeder by repeatedly feeding blank sheets of paper through it. It takes approximately 20 seconds to clean the feeder. Ô 1 Press (Additional Functions). 2 3
Maintenance 10‑10 4 ① Place 10 sheets of blank LTR paper into the feeder, then press [OK]. While the feeder is being cleaned, the screen below appears. 5 Press [Done] repeatedly until the Basic Features screen appears.
10‑11 Maintenance Transfer Roller If the backside of the printed paper is smudged, the transcription roller in the main unit may be dirty. Should this occur, use the Transfer Roller Cleaning function to clean the transcription roller. Ô 1 Press (Additional Functions). 2 3 4 While the transfer roller is being cleaned, the screen below appears. 5 Press [Done] repeatedly until the Basic Features screen appears.