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Unit 6: Maintenance
SATO HT200e Operator Manual PN 9001103B Page 6-6
BELT TENSION ADJUSTMENT
The printer has two timing belts that may require adjustment. The belt configuration transfers the
timing sequence from the drive motor to the platen roller. If the timing belts become loose
enough, media feeding will become erratic affecting print location from label to label. A properly
tensioned belt will be tight enough to prevent slippage, but loose enough to avoid undue lateral
pressure on the motor spindle and the platen roller shaft. Excessively tightened belts will result in
accelerated component wear due to drag and friction.
The methodogy of adjustment is determinant on which belt, or whether both, requires
adjustment.
Both Belts Loosen the idle gear mounting screw and move the gear
upward or downward as required for proper tension and then
retighten the screw. The gear may be adjusted by applying
vertical pressure on the mounting screw.
Platen Belt Loosen the idle gear mounting screw and move the gear
upward or downward as required for proper tension of the
platen belt and then retighten the screw. The gear may be
adjusted by applying vertical pressure on the mounting screw.
Loosen the motor mount screws and adjust the motor as
required to regain proper tension on that belt from the mal-
adjustment created by the adjustment of the platen belt. The
motor may be adjusted by applying lateral pressure on its
mounting screws.
Motor Belt Loosen the two motor mount screws and adjust the motor’s
position until proper tension is achieved, then retighten the
motor mount screws. The motor may be adjusted by applying
lateral pressure on its mounting screws.
If timing belt adjustment does not remedy the problem or if the belts have been adjusted to their
maximum length machanically allowed, the belts will require replacement. Refer to those relative
procedures located in the Replacement Procedures unit of this manual.