8-18
Phaser 600 Color Printer
8
Field Replaceable Unit Disassembly/Assembly
9.
Push the tailpiece's slide ramp to the printer’s right (so the printhead
drops back from the drum). Slide the printhead to its home position.
10.
Initial cold adjustment.
Set the printhead back on its tailpiece by
loosening all three tailpiece screws. This maximizes the spacing
between the printhead and the back-tension blade and ensures the
printhead does not strike the back-tension blade before the
printhead's head-to-media spacing can be properly set.
11.
Manually rotate the head-to-media motor to lower the shim to its
lowest point, inside the head-to-media assembly, on the right end of
the back-tension blade. To ease lowering the shim, pull back on the
back tension blade, moving the blade away from the drum. The shim
should extend 1 mm below the blade. Then back the shim up by
rotating the stepper motor 2 steps.
12.
Slide the printhead so it is centered in front of the “dimple” on the
right end of the back-tension blade (refer to the illustration on
page 9-16).
13.
Install the head-to-media spring loader (refer to the illustration on
page 9-17). Reset the tailpiece's slide ramp so it extends all the way
the printhead’s left (viewed from the front of the printer). Without
pushing, lightly tighten the three tailpiece screws to secure the
tailpiece’s position.
14.
Remove the spring loader and push the slide ramp to its extreme right
(viewed from printer front). The printhead will tilt forward.
15.
Slightly move the printhead to the printer’s right to gain access to the
tailpiece screws. Tighten the three tailpiece screws to 3.5 in./lbs.
(0.40 Nm) starting with the upper-right screw and proceeding
clockwise.
16.
Perform the following “hot” adjustments. Refer to Chapter 9 for the
appropriate procedure:
a.
Set the temperature off set values to “0” or to match any value
printed on the back of the printhead as described in the Chapter 9
topic “Temperature offset adjustment for a new printhead” on
page 9-14.
a.
Adjust the printhead drive voltages using the Chapter 9 procedure
“Printhead drive voltage adjustment” on page 9-15.
b.
Adjust the printhead’s head-to-media spacing using the Chapter 9
procedure “Printhead-to-media adjustment (tailpiece
adjustment)” on page 9-15.
c.
Adjust for printhead tilt. Refer to the Chapter 9 topic “Tilt
adjustment” on page 9-24.