Bematech KC-4112 Rev.1.1 - Manual (Page 12)

User’s Manual
12
Removing Jammed Paper
If a paper jam occurs, follow the steps below:
• Cut the paper at the paper entrance.
• Unlock the presenter mechanism using the presenter lock.
• Unlock the head up switch raising the print head.
• Gently pull the paper out of the mechanism.
• Lock the head up switch back to initial position.
• Lock the presenter.
Key panel
The key panel gives visual printer status and manual control to the operator.
These functions are accomplished using one switch and LEDs, described below:
• POWER LED: This green Led will be on whenever power is applied to the printer and the power switch is on.
• PAPER LED: This red Led will be on when the printer is without paper. If the print head is up, this red Led will blink.
• ERROR LED: This red LED will also be lit in error conditions.
• PAPER FEED BUTTON: Use to feed paper line by line with fast button touches or feed paper continuously, by
pressing and holding down the button.
Presenter operation
The presenter mechanism is responsible for the ejection of the receipts printed by the kiosk printer. It is designed
so that paper jam is minimized, especially while in operation. However, due to paper feed conditions (wrong
paper feeding, paper wrinkles etc.) paper jam may occur, especially when replacing paper. We may, then, consider
the following:
• When a paper jam occurs in the presenter entrance, the paper will not reach the presenter sensor (located in
the presenter cover) – in this case, the kiosk printer goes into error condition, thus requiring manual intervention.
After removing the jammed paper, the printer must be turned off and on again, in order for the printer to come
back on line.
• When the paper jam occurs in the presenter paper exit, the kiosk printer will try to force the paper out for 8
seconds. If that does not happen, the printer will wait for 10 seconds, after which it will try a new paper
presenting sequence. If the second try is not effective, the printer will go permanently in error condition, thus
requiring a manual intervention to remove the paper. This paper jam may occur while replacing paper or if
there is vandalizing of the paper exit. However, to prevent that, the presenter has a clutch device that prevents
paper jamming if paper exit is blocked.
It is possible to set by command the retractable function in the presenter. If this feature is enabled, after a full
cut command the presenter will push the paper and return it to its sensor. As a default, if the paper remains
above the sensor during 10 seconds, the presenter will pull the paper automatically. The retractable time can
also be programmed by command. To enable the retractable function or change the retractable time, please
refer section COMMAND TABLE (Operation). The printer is prepared mechanically to pull the paper without
any receipt jam.
Reliability of presenter operation without the recommended paper is not guaranteed.