4. Inspect the carriage motor and pulley for wear, damage, binds, or looseness. Ensure that the 4 screws
and grommets that support the carriage motor are not damaged.* Verify that the cooling fan is
installed correctly.
To inspect the carriage motor, remove the printhead and loosen the belt clamp to free the belt. Move
the belt to rotate the motor pulley and the idler pulley. If the rotation indicates bearing damage,
replace the idler pulley or the carriage motor.
* The later version of screws has a yellow tinted finish; an upgrade Mechanical Parts Kit 9 is available
to replace screws and grommets, see “Assembly 10: Power Cords, Parts Kits, and Tools” on page 481.
Print Head
Home Sensor
Left
Ribbon
Bracket
Figure 88. Printhead Home Sensor.
(Viewed From Top)
Chapter 5. Removals and Adjustments 334
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