Service manual

Service Manual 8-27

FRU Disassembly/Assembly 8

Thermal head lift motor

1. Power down the printer and remove the power cord. Remove the cabinet top.

Refer to the earlier topic “Printer cabinet panels” on page 8-3.

2. Unloop the thermal head lift belt from the thermal head lift cam roller's

pulley.

3. Remove the screw securing the bottom of the thermal head lift motor bracket.

The transfer roll mark sensors are mounted to this bracket. Remove the

transfer roll mark sensors shield.

Note Since you remove the transfer roll mark sensors to gain access to the

printhead lift motor, upon reassembly you should run the calibration

procedure “Calibrating the transfer roll mark sensors (reflective

sensors)” on page 9-10 to ensure that they are in proper adjustment.

Tools required

n #1 POSIDRIV® screwdriver

Figure 8-24 Freeing the thermal head drive belt and thermal head lift

motor bracket

8699-63A

Thermal head 

lift cam roller

Transfer roll

mark sensor

shield