Figure 9-6 Spacing The Printhead To The Drum - Tektronix Phaser 360 Service Manual

9
Checks and Adjustments
Insert flatblade
screwdriver in
adjusting slot.
Use a twisting
motion to move
the printhead.

Figure 9-6 Spacing the printhead to the drum

9-10 Phaser 360 Color Printer
4. If not already tightened, tighten the printhead mounting screws to
20 in. lbs.
5. If not already loose, loosen the printhead's four locking screws (two at
each end of the printhead until they are just snug in place.
6. At one end of the printhead, slide the printhead gap tool, between the
printhead and the drum. Align the outside edge of the tool with the
inside surface of the printer side-frame. The flat side of the gap tool,
marked HEAD, faces the printhead.
Hold the gap tool so its 2 HOT 3 mark (which represents a 0.024 inch
gap between the printhead and the drum) is level with the bottom of
the notch in the side of the printer frame. With a small, flat-blade
screwdriver, minutely move the printhead to hold the gap tool snugly
but still allow it to be easily removed. You should not feel any tension
or gripping between the printhead and the drum between marks
1 and 2 (which equals a 0.022 inch gap).
Align gap tool marks
to bottom of notch in
side frame
Gap tool
Tighten locking
screws when
both left and right
adjustments are
complete
Printhead in print position
7. Repeat the gap adjustment in Step 7 for the other end of the printhead.
8. Snug the four locking screws using an X-pattern. Then tighten the
four screws, using the same X-pattern, to 20 in./lbs.
9. Recheck the gap on both end of the printhead.
10. Print Service Test Print 11 to check alignment. Reinstall the top cover.
Position gap tool
between the printhead
and drum along the inside
edge of the printer frame
Repeat adjustment at
5
C O
L D
this end of printhead
4
3
H O
T
2
1
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