Troubleshooting Guide - Gestetner B147 Service Manual

4.6 TROUBLESHOOTING GUIDE

4.6.1 IMAGE QUALITY
The table below shows the troubleshooting procedure for the following image problems.
• Smeared image for 4C thin lines or White lines in solid image areas
• Dirty background
• Fireflies
• Crow marks
• Image density change
• Toner blasting
Subject
Smeared image for 4C 4C thin lines become
thin lines or white lines smeared in the paper feed
in solid image areas direction or white lines
appear in solid image areas.
B147/B149/B190
Symptom
Spurs are located just before the fusing
section to prevent paper from touching
the fusing unit. When paper touches the
spurs and the spurs do not rotate, the
spurs scratch the mage.
Cause
Clean the edges of the spurs and change the
position of the spurs as shown below.
If 4C thin lines become smeared:
If white lines appear in solid image areas:
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TROUBLESHOOTING GUIDE
Action
B146T903.WMF
B146T904.WMF
SM