Zebra HW46211 User Manual

Page 3-8

110XiIIIPlus Maintenance Manual

13185L-002 Rev. A 1/24/06

Section 3

Troubleshooting

Extended Printer Diagnostics

Additional diagnostic tests are available for printhead assembly adjustments. These 

diagnostic tests are accessible only when the data interface cable is disconnected from the 

printer and a loop back connector is attached in its place.

The serial rollback connector is a 25-pin “D” Type (DB25P – Male) with the following 

pins tied together:

The parallel loopback connector is a standard 36-pin parallel connector mounted to a small 

printed circuit board. This connector is available from Zebra 

(Zebra part number 44680M).

For each of these diagnostic tests, the printer transmits the test label format out of the data 

interface connector to the rollback connector. The rollback connector passes the test label 

format to the printer as received data, and the test label is prints.

Pause Key Loopback Test

This test demonstrates the media movement capabilities of the printer and provides a test 

label to inspect while making print quality adjustments.

With the rollback connector in place, press and hold PAUSE while turning the printer 

On (l).

After the Power-On Self Test, 500 head test labels print.

A serialized number prints on each label for label comparison purposes if required. Refer 

to the label example in 

. Use PAUSE to stop and restart the printing operation.

•

Pins 2 and 3

•

Pins 6 and 20

•

Pins 13 and 14

•

Pins 16 and 19