![background image](http://html.mh-extra.com/html/tektronix/phaser-840/phaser-840_service-manual_1078591115.webp)
104
Phaser 840 and 850 Color Printers
Note
Do not insert both spacers at the same time as this will only
measure the larger of the two gaps.
9.
Remove the right printhead spacer and install the LEFT spacer between
the printhead and drum. Repeat the adjustment.
10.
Remove the spacer. Snug the four locking screws using an X-pattern.
Then tighten the four screws, using the same X-pattern, to 20 in.-lbs.
11.
If not connected, plug the printhead’s data ribbon cable and power
wiring harness into the power control board. Inspect both ends of the
data ribbon cable to ensure they are properly seated.
12.
Recheck the gap at both ends of the printhead.
13.
Remove the head-to-drum gap indicator and bracket from the frame.
14.
Reinstall the ink loader and metal heat cover.
15.
Select Complete from the front panel. Reinstall the top cover.
16.
Print service test print Head-to-Drum Gap to check alignment.
Spacing the printhead to the drum
RIGHT
Tighten locking
screws when
both left and right
adjustments are
complete
Gap tool
Insert flatblade
screwdriver in
adjusting slot.
Use a twisting
motion to move
the printhead.
Position gap tool
between the printhead
and drum, hook in side
frame and over shaft
0388-31
Repeat adjustment
at this end of
printhead with
LEFT gap tool
Printhead in
print position
Summary of Contents for Phaser 840
Page 11: ...xii Phaser 840 and 850 Color Printers ...
Page 65: ...54 Phaser 840 and 850 Color Printers ...
Page 101: ...90 Phaser 840 and 850 Color Printers ...
Page 125: ...114 Phaser 840 and 850 Color Printers ...
Page 134: ...Service Guide 123 Clearing PostScript NVRAM menu item ...
Page 135: ...124 Phaser 840 and 850 Color Printers ...
Page 166: ...Service Guide 155 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 9 9 ...
Page 170: ...Service Guide 159 Figure 3 Paper path FRUs 0388 80 2 1 5 11 10 9 12 6 4 3 7 13 8 11a 11b ...
Page 172: ...Service Guide 161 Figure 4 Motor and fan FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 174: ...Service Guide 163 Figure 5 Circuit board FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 81 12 7a ...
Page 176: ...Service Guide 165 Figure 6 Solenoid and clutch FRUs 4 5 3 2 1 0388 23 ...
Page 182: ...Service Guide 171 Figure 9 High capacity PaperTray 0388 65a 1 2 ...