Microcom 814M Operators Manual - Manual (Page 41)

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6.3.1 Power Interface
This connector is used to connect the printer with an external power supply.
Power connector pins:
Table 6-5 Power Pin Explanation
7 Troubleshooting and Maintenance
7.1 Common Errors and Settlement
7.1.1 Problems during Paper Loading
Problem Possible reasons How to settle
Paper roll cannot be loaded
into paper holder. The paper roll width and diameter
do not meet the requirements of
the printer . Replace the paper.
The printer cannot feed paper
automatically. Paper lead edge is irregular.
The paper load sensor is not
covered by paper.
Dust or wastepaper covers the
paper loading sensor. Clear wastepaper.
Remove jammed paper.
Check the front end of paper to
confirm that the paper-load sensor is
covered fully by paper.
Clean the paper load sensor.
Buzzer alarms. Paper end.
The printer cover is not fully closed. Replace the paper roll.
Ensure that printer upper cover fully
closed.
After auto paper feeding, the
paper cannot stop in the
normal print position. Dust or wastepaper covers the
paper loading sensor Clean the paper loading sensor.
Table 7-1 Paper Feeding Issues Index
Figure 6-3 Power Supply Pins
PIN Signal name
1 +24V
2 GND
3 NC
SHELL F.G.