Olivetti DR N17, Service Manual

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7-94 687200Q
7.5.8 Spot Deletions
Procedure
1 Replace the paper in the paper tray. Problem is solved.
Y: Use new paper (and ask the customer to keep paper stock in a dry place).
N: Go to step 2.
2 The Bias Transfer Roll (BTR) Assembly is contaminated.
Y: Replace the BTR Assembly.
N: Go to step 3.
3 If the spot deletions occur at approximately 94.0mm intervals, the Drum has possibly caused the
deletions. Replace the EP Cartridge with a new one. The problem is solved.
Y: Go to Final Actions.
N: Go to step 4.
4 The spot deletions occur at approximately 62.0mm intervals, there are scratches or
contamination on the Heat Roll/Pressure Roll surface.
Y: Clean and/or repair the Heat Roll/Pressure Roll or replace the Fuser Assembly.
N: Replace the Fuser Assembly.
Definition
Deletion is an area of the print where the image is missing or extremely light.
Spot deletions are missing spots localized to small areas of the page.
Sample Image
A A A