Swecoin TTP 5200, Service Manual

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December 2001 TTP 52x0 Series Kiosk Printer— Service Manual 9
2.4 Cutting
The cutter module moves the cutting blade down (cutting), and then it returns up again to
the home position. A DC-motor and a crank mechanism drive the cutter. A sensor detects
when the blade reaches the home position.
A vertical leaf spring (not shown in the above figure) aids in keeping the free end of the
movable knife blade pressed against the fixed cutting edge.
WARNING!
RISK OF INJURY! Depending on the position of the crank mechanism, the cutting knife
may start moving when the printer is switched ON. KEEP HANDS AWAY WHEN
SWITCHING ON THE PRINTER.
2.5 Printhead-up detection
Lowering the paper release lever separates the printhead from the platen and actuates
the printhead-up micro-switch sensor. This sets a status bit in the status message.
Printing is interrupted as long as the printhead is lifted.
Lowering the paper release lever is also part of the procedure for setting the printer in a
HEX dump mode for logging the data transfer between the host and the printer. See page
13.
CAUTION! — If the printer is not going to be used for a week or more, disengage the
printhead from the platen by lowering the paper release lever. Both the printhead and the
platen can otherwise be deformed.