Zebra 3742 Service Manual download pdf (Page 33)

Label Taken Sensor Replacement 980357-208A

Preparations

Protect against static discharge. Your work area must be static-safe and include

a properly grounded conductive cushioned mat to hold the printer and a

conductive wrist strap for yourself.

Follow the removal steps of the Media Frame Replacement procedure (980357-207).

Removal

1. Push outward the sensor door 1 until it

pops out of the top cover

2. Pull the ribbon cable from its guide posts

inside the top cover.

3. Carefully pull the connector from its

location J6 on the main PCBA.

4. Pull the ribbon cable and connector out

of the front of the top cover.

Assembly

1. Route the ribbon cable connector from

the front to the inside of the top cover.

1. Insert the connector into its location J6

on the main PCBA.

2. Align the sensor and sensor door so that

the ribbon cable leads to the left, then

snap them into the top cover.

3. Feed the ribbon cable along its path and insert it into the notches to secure it. You may use

tape or hot glue if necessary.

Assemble the Printer

1. Follow the assembly steps of the Media Frame Replacement procedure (980357-207).

2. Reload media and ribbon. Plug in the power cord, turn on the printer and run the AutoSense

routine to get a dump mode printout. Run the printer in dispense mode to test the sensor.

980357-001 Rev. A 25

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Zebra 3742 Service Manual Page 33