Xerox 4520 User Manual page 219

Figure 7.6 Print Quality Problems (continued)
Problem
Vertical line deletions
Localized print deletions
forming narrow lines
running in the direction
of paper movement.
Horizontal line
deletions
Localized print deletions
appearing as bands
running across the page
perpendicular to the
direction of paper
movement.
Possible Causes
1. Defective EP cartridge
2. Defective paper stock,
creases, folds, etc.
3. Transfer Corotron wire dirty
1. Defective EP cartridge
2. Defective paper stock,
creases, folds, etc.
C h a p t e r 7 : T r o u b l e s h o o t i n g
P r i n t Q u a l i t y P r o b l e m s
Corrective Actions
1. Replace EP cartridge.
2. Replace paper stock.
3. Replace Transfer Corotron (see
Chapter 6).
1. Replace EP cartridge.
2. Replace paper stock.
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