Service manual

March, 09 TTPM3 - Service Manual 11
3.1.3 Cutting module
See Figure 4.
The knife in the cutting module moves by means of a DC-motor (u) with a
combined carrier and cam wheel (ae). The motor runs in one direction only during
normal cutting operations. A micro-switch sensor (v) detects when the knife
reaches its home position. If the mechanism cannot reach its home position,
possibly due to a paper jam or similar, the motor will run in the opposite direction
until the mechanism reaches its home position.
WARNING!
DANGER OF INJURY. Depending on the position of the carrier wheel on the cutter
module, the cutting mechanism may start moving when the mains power supply is
switched ON. KEEP HANDS AWAY WHEN SWITCHING ON THE POWER.
3.2 Front Load
3.2.1 Design
The Front Load option consists of an input/output module and a printhead lifting
mechanism. The front load option also has a lift mechanism for raising the in/out
feeder assembly to enable a document to be directed out through an opening at
the bottom of the input/output module to a waste bin.
The printer can be programmed either to hold the ticket so that the customer can
take it from the printer, or fully ejects the ticket so that it can fall down into a tray or
bowl and the customer can take it from there.
Chute
FL3 feeder assy
Print head assy
Link
Solenoid
Paper
presence
sensor
Pressure roll
Feed roll
Intermediate
gear
Screw
Stepper
motor
Platen
Plunger
SW97095FL3
Figure 5. Front load input/output module design. Note that the feed roller is in the very
front of the unit so that the ticket can be dropped into a bowl.