Datasheet

198 Zebra P630i & P640i Card Printer Service Manual 980006-001 Rev. A
Replacement Procedures
Printhead Assembly
Step 3. Adjust the Printhead Angle.
a. If not already done, remove the Printhead Cover; and move the ground wire out
of the way.
b. Loosen the inside mounting screw just enough to allow sliding movement of the
printhead bracket.
c. Unlock the angle adjust screw, turn it a quarter-turn counterclockwise, then re-
lock it. This will have the effect of rotating the head counterclockwise a fraction
of a degree when you snug the button head against the printhead frame.
d. Tighten the inside mounting screw.
e. Print another Test Card. If there is a noticeable improvement, try another quarter-
turn adjustment, then print again.
f. If the print quality is seen to deteriorate rather than improve, return to the
previous setting or the 30-mil preset setting of the head angle screw, then rotate it
clockwise in quarter-turn increments.
g. This adjustment is complete when you are satisfied with the Test Card
image quality.
Step 4. Install the Printhead Cover (and ground wire). The ground wire is secured with the
longer of the two cover screws.
Inside Mounting
Screw
Access Hole for
Angle Adjust
Screw