Datasheet
44895L Rev. 3 3/15/04 S400/S600 Maintenance Manual Page 4-51
3UHYHQWLYHDQG&RUUHFWLYH0DLQWHQDQFH 6HFWLRQ
0DLQ'ULYH%HOW5HPRYDO5HSODFHPHQWDQG$GMXVWPHQW
Printers without the Peel-Off Option
1. Turn printer Off (O), and remove the AC power cord and the printer data cable.
2. Remove media and ribbon.
3. Remove the main door and rear cover.
4. Remove the main logic board and media sensor assembly.
5. Refer to Figure 4-43 on page 4-50. Loosen the shoulder bolt holding the idler pulley
in position until the pulley freely moves up and down.
6. Remove the main drive belt and install the new one.
7. Hook a 1000 gram spring scale to the belt as shown in Figure 4-43 on page 4-50,
and carefully pull up on the idler pulley to increase belt tension.
8. When a scale reading of 500 grams ± 100 grams creates a deflection of ¼" (6.4
mm), tighten the shoulder bolt.
9. Reinstall the media sensor assembly, main logic board, main door, and rear cover.
10. Reload media and ribbon.
11. Reconnect the AC power cord and data cable. Turn the printer On (l), and test for
proper operation.
Printers Equipped With the Peel-Off Option
1. Turn the printer Off (O), and remove the AC power cord and the printer data cable.
2. Remove media and ribbon.
3. Remove the main door and rear cover.
4. Remove the main logic board and media sensor assembly.
Caution:
Observe proper electrostatic safety precautions when removing, handling, and replacing
printed circuit boards.
Note • Scribing a mark into the printer main frame indicating the position of the idler
pulley prior to performing the next step may help when adjusting the belt tension.
Caution:
Observe proper electrostatic safety precautions when removing, handling, and replacing
printed circuit boards.
Note • Scribing a mark into the main frame indicating the position of the idler pulley
prior to performing the next step may help when adjusting the belt tension.