Specifications

32056L Rev. 2 12/4/01 105SL Maintenance Manual Page 4-23
PREVENTIVE AND CORRECTIVE MAINTENANCE SECTION 4
6. Slide the ribbon take-up spindle assembly to the right to relieve the tension on the main
drive belt.
7. Hook a 2200-gram spring scale to the belt as shown in Figure 4-14 and carefully slide
the ribbon take-up spindle assembly to the left to increase belt tension.
8. When a scale reading of 2000 grams ±250 grams (4.5 lbs. ±0.5 lbs.) creates a
deflection of 1/4 inch (6 mm), tighten the three mounting screws to a torque of
20 inch-pounds (2.3 N
m).
9. Reinstall the electronics cover.
10. Reinstall the media and ribbon. Close the printhead.
11. Close the media cover.
12. Reconnect the data cables and the power cord.
13. Reconnect the power cable to the power source. Place the power switch in the On (I)
position.
5531R5HPRYHDQG,QVWDOOWKH0DLQ'ULYH%HOW
To remove the main drive belt:
1. Refer to RRP No. 1 on page 4-10 and place the power switch in the Off (O) position
and disconnect the AC power cord. Disconnect the data cables.
2. Open the media cover.
3. Open the printhead and remove the media and ribbon. Close the printhead.
4. Refer to RRP No. 2 on page 4-12 and remove the electronics cover.
Figure 4-14. Main Drive Belt Adjustment
2200
2000
1800
1600
1400
INCHES
1
2
3
Spring
Scale
Ribbon
Take-up
Pulley
Main
Drive Belt
Platen Roller
Pulley
Stepper
Motor
Pulley
Ruler
Access To
Mounting
Screws