Canon D1300 Series Service Manual

Canon D1300 Series Service Manual Manual pdf 127 page image

66 6-46-4Trouble Shooting > Trouble Shooting Items > Repetitive Image Defects RulerTrouble Shooting > Trouble Shooting Items > Repetitive Image Defects RulerTrailing edge image soiling[Cause]The image is extended when the paper feed speed is increased due to the temperature risingin the machine.This causes the trailing edge margin to become narrow, resulting in the occurrence of imagesoiling (transfer toner scattering).NOTE :Because paper slightly shrinks due to its passing through the Fixing Assembly oncewhen printing the 1st side, this symptom is likely to occur on the 2nd side.[Field Remedy]Remedy (1): Set the Special Mode U to ON.Effect: Image soiling is controlled by changing the settings of transfer high voltage current.Remedy (2): Change the paper type mode from "Plain" to "Plain L".Effect: Fixing control temperature is reduced => Temperature rising in the machine iscontrolled => Reduction of trailing edge margin is controlled.When the effect is not enough with remedy (1), perform the remedies (1) + (2).Repetitive Image Defects RulerComponent Distance between defects (mm)Registration roller About 43Primary charging roller About 38Photosensitive drum About 75Developing roller About 42Transfer roller About 39Fixing film unit About 57Pressure roller About 63T-6-3