Xerox 4890 Troubleshooting Manual page 4

Table of contents
5. Optimizing print quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Adjusting print quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Product features that affect PostScript print quality . . . . . . . . . . . . . . . 5-2
6. Resolving printer problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
7. Resolving system problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
iv
Clearing paper jams from area 4 . . . . . . . . . . . . . . . . . . . . . . . 4-15
Clearing paper jams from area 5 . . . . . . . . . . . . . . . . . . . . . . . 4-18
Clearing paper jams from areas 6 and 6A . . . . . . . . . . . . . . . . 4-20
Clearing paper jams from area 7 . . . . . . . . . . . . . . . . . . . . . . . 4-22
Clearing paper jams from area 8 . . . . . . . . . . . . . . . . . . . . . . . 4-24
Clearing paper jams from area 9 . . . . . . . . . . . . . . . . . . . . . . . 4-25
Adjusting dual stacker tray scuffer arms . . . . . . . . . . . . . . . . . . 4-26
Clearing stitcher/stacker paper jams (areas A and B) . . . . . . . 4-27
Clearing bypass transport paper jams (4890/92C only) . . . . . . 4-28
Proprietary PostScript extensions . . . . . . . . . . . . . . . . . . . . . . . 5-2
Device-dependent operators . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Gray shading-setscreen and setcolorscreen . . . . . . . . . 5-3
Gray shading-settransfer and transfer function . . . . . . . 5-4
Smooth curves-setflat . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Invisible strokes-0 setlinewidth . . . . . . . . . . . . . . . . . . . 5-5
Scan conversion-fill, eofill, and stroke . . . . . . . . . . . . . . 5-5
Troubleshooting Guide