Microcom 485TM, Operator'S Manual

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Chapter 3 Getting Started
485TM Operator’s Manual - 880063-0100 3-17
• The media dispense chute should always be wider than the maximum width stock for the
printer being used.
• Upon exiting the printer, the media should never be forced or bent as this will cause
jamming.
• The stock should never be expected to drop through a chute as this may be unlikely due to
electrostatic discharge as covered later in this document.
• The exit chute should act as a funnel and always be larger than the dispense point.
• Never allow the user to grab the printed media prior to the cut operation as this could
cause jamming or stretched print. The use of a presenter or drop tub is recommended.
Guides specific to a fixed length can also be designed.
3.15.6.2 Cables and Routing
Always use cable ties and locking connectors if possible, allow for kiosk component
servicing, and avoid electrical noise sources.
• Cables that are near the printer, media path, or media should be tied to the kiosk chassis
or printer mounting hardware. The operator can accidentally disconnect the printer or other
kiosk components when maintaining the kiosk. Cabling must not interfere with the proper
operation of the printer and media. The operator can become caught on cabling and drop
heavy media damaging the kiosk, printer, or hurting themselves.
• Service Loops - There should be enough slack in the cabling to not put pressure on the
cable connectors or the circuit boards. Enough slack is needed to disconnect the printer (or
their kiosk components) for servicing. Allow for movement needed to access the cable locks
or slide the printer out.
• Avoid electrical noise sources: fluorescent lighting and ballast, power supplies, fans, AC
power lines, CRT monitors, etc.
• Avoid twisting power and communication cables together. This can cause electrical noise
on the communication port or raise emissions levels.
3.15.7 Power Supply Requirements
Thermal printers have special power requirements to operate correctly and safely within
compliance regulation guidelines. To achieve optimum performance, an approved power
supply should be used. Power supplies sold by Microcom Corporation have gone through
rigorous testing to ensure the proper function of the printer. If a non-Microcom supplied
power supply is used with the printer, it must comply with the requirements of that printer.
The same ground MUST be used for the printer, printer power supply, and any device (PC,
USB hub, etc.) connected to the printer communication ports, and the same AC power
circuit should be used whenever possible for these devices. If the printer does not have an
integrated power switch, it is recommended that the power supply have one on the ac input
side to the power supply. Plugging and unplugging the 24 volt supply into the back of the
printer hot can cause damage to the printer. Using an insufficient power supply can cause
damage to the printer. Thermal printers require high over current peaks of power that must
be handled by the power supply. When Short Circuit Protection or Over Current Protection