![background image](http://html.mh-extra.com/html/tektronix/phaser-840/phaser-840_quick-reference-manual_1078590153.webp)
Service Guide
143
18: Yellow Solid Fill
. This prints shows
uniformity of fill.
Look for:
Even, uniform fills throughout
the print. There should be no wrinkling or
deformity of the paper throughout the
print.
Causes:
Weak jets or uneven drum
heating may cause uneven fills.
To solve wrinkling, try different print
media. Replace the drum maintenance
tray to correct streaking.
Check the drum-temperature sensor for
debris build-up on the sensor. Or the
sensor is in improper contact with the
drum. Refer to the test print
Reverse
Text
.
The transfix pressure may be incorrect.
Perform the transfix spring adjustment
described in “Transfix roller pressure
spring adjustment” on page 72. As a last
resort, replace the drum/transfix
assembly.
19: Color Bands
This print consists of
sequential bands of primary and
secondary colors followed by a blue tint.
This print is used for manufacturing and
engineering evaluation of printhead
performance.
0388-37
Summary of Contents for Phaser 840
Page 46: ...36 Phaser 840 Color Printer ...
Page 95: ...Service Guide 85 Clearing PostScript NVRAM menu item ...
Page 96: ...86 Phaser 840 Color Printer ...
Page 121: ...Service Guide 111 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 ...
Page 125: ...Service Guide 115 Figure 3 Paper path FRUs 0388 16 2 1 5 11 10 9 12 6 4 3 7 13 8 ...
Page 127: ...Service Guide 117 Figure 4 Motors and fans FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 129: ...Service Guide 119 Figure 5 Circuit boards FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 13 12 ...
Page 131: ...Service Guide 121 Figure 6 Solenoids and clutches FRUs 4 5 3 2 1 0388 23 ...
Page 137: ...Service Guide 127 Figure 9 High capacity PaperTray 0388 65a 1 2 ...
Page 142: ...132 Phaser 840 Color Printer ...
Page 154: ...144 Phaser 840 Color Printer ...