Zebra 105SL Specifications Page 116

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Page 4-30 105SL Maintenance Manual 32056L Rev. 2 12/4/01
SECTION 4 PREVENTIVE AND CORRECTIVE MAINTENANCE
18. Place the power switch in the Off (O) position. Perform the PAUSE Key Self Test and
check print quality. If only half of a label is printed, the printhead is not seated properly.
If the label printed properly, the printer is ready for operation. If print quality is not
satisfactory, refer to Troubleshooting Table in Section 3 and proceed to Printhead
Adjustments.
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There are four printhead adjustments that affect print quality. The adjustments should be
performed in the following order:
Printhead Pressure
Printhead Position
Wear Plate (Balance) Position
Printhead Parallelism
NOTE: To achieve optimum results with print quality adjustments, install full
width media and ribbon. Verify the media and ribbon are properly matched
and darkness/print speed configurations are correct for the application
before performing any mechanical adjustments.
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1. Ensure that the power switch is in the Off (O) position.
2. Refer to Figure 4-21 and measure the distance from the top of the toggle foot to the
bottom of the lower knurled nut. If the measurement is not 1-3/16
(30 mm), loosen the
upper knurled nut and adjust the lower knurled nut until the distance is correct.
3. Tighten the upper knurled nut against the lower knurled nut to lock that position.
CAUTION:
OTHER THAN PRINTHEAD PRESSURE, PRINTHEAD ADJUSTMENTS
RARELY NEED TO BE PERFORMED, EVEN AFTER REPLACING THE
PRINTHEAD. THESE ADJUSTMENTS SHOULD BE PERFORMED ONLY
BY QUALIFIED TECHNICIANS WHO HAVE BEEN SPECIFICALLY
TRAINED. DO NOT PERFORM THESE ADJUSTMENTS UNLESS YOU
HAVE BEEN TRAINED TO DO SO.
Figure 4-21. Initial Toggle Setting
1-3/16
(30 mm)
Upper Knurled
Nut
Lower Knurled
Nut
Spring
Toggle Foot
Lock Nut
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