Tektronix Phaser 550 Service Manual page 223

Appendix
B
Test Prints
This appendix illustrates the test prints produced by the print engine. It also
illustrates a number of defective prints and the reason for the defects. The
Chapter 6 Troubleshooting topic "Printing and print quality problems" on
page 6-24 discusses solutions to the problems shown in this appendix.
Test Print consists of four 25% tint primary color bands. Service Print 1 prints out
four 25% tint full page fills, each page one primary color. Service Print 2 shows
1200 dpi printing.
From the Help Pages menu in the front panel, select Test Print
From the Help Pages menu in the front panel, select Service Print 1
Test Print
<--- ---> Print
Service Print 1
<--- ---> Print
Single color mottled or with non-uniform density streaks.
If a single color displays a mottled appearance or if a single color
shows many vertical streaks of varying densities, then that color's
toner cartridge is running of toner. Replace the cartridge.
Black
Cyan
Power
=
Magenta
Error
Yellow
Imaging Unit XXXX
Test Print Corona Wire XXXX
Transfer Kit XXXX
Fuser XXXX
Power
=
Error
Black Cyan
Service Manual
Magenta Yellow
B-1