Canon iR3570 Service Manual

Also see for iR2270 Series: Product description Printer guide User guide Service manual Service manual

Contents

Canon iR3570 Service Manual Manual pdf 523 page image

ContentsContents14.1 Making lnitial Checks ................................................................................................................................................14-114.1.1 Site Environment ..................................................................................................................................................................... 14-114.1.2 Checking the Paper .................................................................................................................................................................. 14-114.1.3 Checking the Placement of Paper ............................................................................................................................................ 14-114.1.4 Checking the Durables ............................................................................................................................................................. 14-114.1.5 Checking the Periodically Serviced Items ............................................................................................................................... 14-114.1.6 Checking the Units and Functional Systems ........................................................................................................................... 14-114.1.7 Others ....................................................................................................................................................................................... 14-214.2 Troubleshooting .........................................................................................................................................................14-214.2.1 Image Faults............................................................................................................................................................................. 14-214.2.1.1 Blank Image ................................................................................................................................................................................................14-214.2.1.1.1 Blank image/Toner is not supplied: Because pin of toner sensor connector for developing assembly is bent...................................14-214.2.1.2 Foggy Image................................................................................................................................................................................................14-214.2.1.2.1 When copying book original, fogging/shadow occurs on output image.............................................................................................14-214.2.1.2.2 Faulty image (fully fogged image) occurs in copyboard-glass scanning, stream reading, and FAX transmission ............................14-314.2.1.2.3 Fogging caused by original-to-copyboard glass gap/ lines caused by original with creases (especially book) .................................14-414.2.1.3 Uneven Density...........................................................................................................................................................................................14-414.2.1.3.1 Uneven/coarse image occurs at 59mm intervals in sub scanning direction: iR3570/iR4570 .............................................................14-414.2.1.3.2 Distorted image/skewed image occurs around 45mm from trailing edge after attaching new type compression spring to rear side ofregistration roller .............................................................................................................................................................................................14-514.2.1.3.3 White dots on black solid image/sandy image: Occurs even after executing "D-GAMMA" at time of replacement of drum unit ...14-514.2.1.3.4 Uneven Density in Sub Scanning Direction........................................................................................................................................14-514.2.1.3.5 Uneven Density Caused by Irregular Rotation of the Main Motor.....................................................................................................14-614.2.1.4 Partially Blank/Streaked..............................................................................................................................................................................14-714.2.1.4.1 White lines appear in sub scanning direction on solid black and halftone images: Dust on top cover of Developing Assembly .....14-714.2.1.4.2 White lines appear in sub scanning direction on solid black and halftone images: Foreign substances adhere to edge of Feeder Guide14-714.2.1.4.3 Void/uneven image/toner is not supplied: Because connector of toner feedscrew motor is unplugged.............................................14-814.2.1.4.4 Faulty image/void (in sub scanning direction) appears approx. 10mm away from front side of paper: Because contact image sensor isfaulty................................................................................................................................................................................................................14-814.2.1.4.5 Void at about 43mm intervals/uneven density (in main scanning direction): Because developing assembly is faulty......................14-814.2.1.4.6 Horizontal Line/Blurring at Intervals of 94 to 95 mm ......................................................................................................................14-1214.2.1.4.7 White Lines in Sub Scanning Direction............................................................................................................................................14-1214.2.1.5 Smudged/Streaked.....................................................................................................................................................................................14-1314.2.1.5.1 Stray Toner Along Fine Lines...........................................................................................................................................................14-1314.2.1.5.2 Soiled Image Leading Edge ..............................................................................................................................................................14-1414.2.1.5.3 Black Dots .........................................................................................................................................................................................14-1514.2.1.6 Ghost/Memory ..........................................................................................................................................................................................14-1614.2.1.6.1 Ghost .................................................................................................................................................................................................14-1614.2.1.7 Stretching/Shrinking .................................................................................................................................................................................14-1714.2.1.7.1 Distorted line or jagged line occurs when copying drawing or document including ruled line: Because of defective laser scannerassembly ........................................................................................................................................................................................................14-1714.2.1.7.2 DADF-N1: Image stretch or shrinkage (in sub scanning direction) occurs in stream reading upon installation .............................14-1814.2.1.7.3 Output image is scaled down in original feed direction because CIS read position is shifted: After replacing paper pick-up assemblyfor DADF-N1 ................................................................................................................................................................................................14-1814.2.2 Malfunction............................................................................................................................................................................ 14-1914.2.2.1 No Power...................................................................................................................................................................................................14-1914.2.2.1.1 Upon installation, machine does not start up / LCD does not come on although main power indicator on control panel lights up: Poorconnection of ROM/RAM.............................................................................................................................................................................14-1914.2.2.1.2 Progress bar stops at midpoint and machine fails to start/Unable to power-on: Because J1016 connector is broken......................14-1914.2.2.1.3 LCD on control panel does not display anything upon installation: Because Main Controller PCB is faulty .................................14-1914.2.2.1.4 No power/machine does not start up/LCD displays nothing: Because Main controller PCB is faulty.............................................14-1914.2.2.1.5 LCD displays nothing/progress bar on LCD stops at one-fifth point and machine repeats restart: Because main controller PCB is faulty14-2014.2.2.2 Control Panel-Related ...............................................................................................................................................................................14-20