Carriage drive belt
Service check
1. Turn off the printer.
2. Open the top cover and remove the ribbon.
3. Move the printhead to the right side stop.
4. Using a push-pull scale (such as IBM P/N 460870) to check the belt tension, apply pressure to the upper half
of the belt (at a point midway between the printhead and the left side frame) until it begins to touch the bottom
half of the belt. To accurately measure the tension, it is critical for the raised surfaces of the teeth to align, as
shown in Figure 6.
The correct force required to bring the top of the belt into contact with the bottom of the belt is 1.1 ±0.05 kg
(2.4 ±0.12 lb).
5. If the measurement is correct, the service check is complete. Stop here and return to the step that sent you
here.
If the measurement is not correct, go to the adjustment.
e90acb3
Adjusting
Screw
Apply
Force
Here
Figure 6. Carriage belt. (Viewed From Top) - Teeth must align during measurement.
Chapter 5. Removals, service checks and adjustments
161
Содержание 4247-V03
Страница 24: ...Reference table 8 ribbon lift and 26 pin cable connectors 93 Chapter 1 Diagnosing problems 24 ...
Страница 138: ...Operator panel cable wiring Chapter 3 Wiring diagrams 138 ...
Страница 144: ...Tractor assembly cable wiring Chapter 3 Wiring diagrams 144 ...
Страница 164: ...Chapter 5 Removals service checks and adjustments 164 ...
Страница 173: ...Table 24 Print quality sample 1 2 3 Chapter 5 Removals service checks and adjustments 173 ...
Страница 246: ...Assemblies Chapter 6 Parts catalog 246 ...
Страница 307: ...Taiwanese EMC Notices 307 ...
Страница 310: ...Index Copyright IBM Corp 2002 310 ...
Страница 311: ...IBMR Part Number 75P1301 Printed in U S A G544 5873 00 1P P N 75P1301 ...