Image Failure; Image Failure Troubleshooting; Initial Checks - Minolta Di350 Service Manual

FrameMaker Ver.5.5E(PC) Di350 TROUBLESHOOTING
98.12.09
5

IMAGE FAILURE

5-1.

Image Failure Troubleshooting

Image failures have many possible causes. For troubleshooting, it is necessary to deter-
mine whether a failure is attributable to:
1. A basic cause or any other cause
2. The input system (IR) or output system (engine).
In this chapter, troubleshooting is divided into "initial checks" and "troubleshooting proce-
dures classified by image failures." If an image failure has occurred, first make the initial
checks, then proceed to the corresponding image failure troubleshooting procedure.
5-2.

Initial Checks

1. Place of installation
• Is the source voltage normal? Does the voltage vary greatly?
• Is the copier installed in a hot, humid place where temperature varies sharply?
• Is the copier installed in a dusty place?
• Is the copier subjected to direct sunlight?
• Is the copier level?
2. Copy paper
• Is the recommended paper used?
• Is the paper damp?
• Does the paper size set in the paper source match the size of the paper loaded in it?
3. Original
• Is the original written in light pencil?
→ Use the test chart to check the image.
• Is the original transparent, or are transparencies being used?
→ Place a blank sheet of paper over the original and make a copy.
• Is the Original Glass dirty or scratched?
→ Clean a dirty glass, or replace a scratched one.
4. Adjust data and Level History data
• Do the values set for "Adjust" and "Level History" fall within the specified range?
5. PM parts (supplies)
• Have the PM parts (supplies), such as the PC Drum, Cleaning Blade, and other parts
that affect image quality, reached the end of their cleaning or replacement cycle?
• Are two or more imaging cartridges being used alternately?
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