Canon iR5000 Service Manual

Also see for IR5000 - iR B/W Laser: Driver guide Function guide Quick guide Service manual Service manual

Contents

COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000 T 3CONTENTS8.5 Conversion Table for thePotential Control System ........ 3-37T8.6 Emergency Measures for aFault in the Potential Sensor ... 3-41T9. Checking the EnvironmentSensor ........................................... 3-42T9.1 Procedure ............................... 3-42T9.2 Emergency Measure for a Faultin the Environment Sensor ..... 3-42T10. Checking the Photointerrupters ..... 3-43T10.1 Using a Meter ......................... 3-43T10.2 Using Service Mode ............... 3-43T10.3 Check List .............................. 3-43TCHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS1. Making Initial Checks in theEvent of an Image Fault .................. 4-1T1.1 Site Environment ...................... 4-1T1.2 Checking the Originals forSymptoms ................................ 4-1T1.3 Copyboard Cover, CopyboardGlass, and Standard WhitePlate .......................................... 4-1T1.4 Checking the ChargingAssemblies ............................... 4-1T1.5 Checking the DevelopingAssembly ................................. 4-2T1.6 Checking the Paper ................... 4-2T1.7 Checking the PeriodicallyReplaced Parts .......................... 4-2T1.8 Image Adjustment BasicProcedure ................................. 4-2T1.9 Others ....................................... 4-2T2. Samples of Image Faults ................. 4-4T3. Troubleshooting Image Faults ........ 4-5T3.1 The image is too light(halftone) .................................. 4-5T3.2 The print is too light(including solid black area) ....... 4-6T3.3 The print is too light(overall, appreciably) ................ 4-6T3.4 The print has uneven density(darker at front) ........................ 4-7T3.5 The print has uneven density(lighter at front) ........................ 4-7T3.6 The print is foggy (overall) ....... 4-8T3.7 The print if foggy vertically ...... 4-9T3.8 The print has black lines(vertical, blurred, thick) ............ 4-9T3.9 The print has black lines(vertical, fine) ......................... 4-10T3.10 The print has white spots(vertical) ................................. 4-11T3.11 The print has white lines(vertical) ................................. 4-11T3.12 The print has white spots(horizontal) ............................. 4-12T3.13 The back of the print issoiled ...................................... 4-13T3.14 The print has fixing faults ....... 4-14T3.15 The print has a displacedleading edge (appreciablylarge margin) .......................... 4-15T3.16 The print has a displacedleading edge (large margin) .... 4-15T3.17 The print has a displacedleading edge (no margin) ........ 4-15T3.18 The print has a blurredimage ...................................... 4-16T3.19 The print is foggy(horizontally) .......................... 4-17T3.20 The print has poorsharpness ................................ 4-17T3.21 The print is blank .................... 4-18T3.22 The print is solid black ........... 4-19T4. Troubleshooting Malfunctions ...... 4-20T