Image Quality Raps - Olivetti DR N17 Service Manual

7.5 Image Quality RAPs

This section contains image quality repair procedures to assist in correcting image quality defects.
These procedures provide defect samples, definitions and specifications to help identify the type of
defect that exists, the test pattern to use, and actions required to correct the defects.
Throughout these procedures, the term "vertical" refers to the process direction (the direction paper
travels through the printer); the term "horizontal" refers to the scanning direction (the direction the laser
beam scans across the page).
Be sure to check the paper tray to determine whether paper is being fed long edge or short edge first.
This determines "vertical" and "horizontal" for paper fed from that particular tray.
Cleaning procedures should always be performed before beginning any Print Quality Repair procedure.
Be sure that the paper meets printer specifications. Changing the paper, or using paper from a
previously unopened ream, will resolve many print quality issues.
After resolving an image quality problem, return to RAP 7.5.3 Image Quality Checkout to verify that no
other image quality defects exist.
7-74 687200Q