Printer Doesn't Work; Problem During The Printing Process - SNBC BTP-M300 Service Manual

then turn on the power and the cutter will reset automatically.
Caution:
Please do not touch the stationary blade and the movable blade of cutter to avoid any damage when
power on the printer.

7.6 Printer doesn't work

Problems: The printer doesn't work when power switch is turned on.
Possible causes and solutions:
The power supply is not connected. Please check whether both sides of power cable are
connected correctly or not, if not, please connect it; Check whether the host and the power supply
are powered, if not, please connect it;
The main control board is damaged, please replace it.

7.7 Problem during the printing process

1) Problems: Alarm HP error.
Possible causes and solutions:
The tension of tooth belt is too big, please adjust the tension (1kg~2kg force);
The tension of tooth belt is too small, please adjust the tension (1kg~2kg force);
The space between the direction guide shaft and its bushing is too big, please replace the bushing;
The load of carriage driving is too big, please check whether foreign material exists in the gears or
not. If so, please clear it;
The installation position of HP sensor is not correct, please ask the technical personnel to install it
again;
The wire of HP sensor is broken, please ask the technical personnel to replace it;
The HP sensor is damaged, please ask the technical personnel to replace it;
The main control board is damaged, please ask the technical personnel to replace it.
2) Problems: Paper can not be output normally.
Possible causes and solutions:
Paper is jammed, please clear jammed paper;
The load of paper feed driving is abnormal, please check whether foreign material exists in the
gears or not. If so, please clear it;
The wire of paper feed motor is damaged, please ask the technical personnel to replace it;
The paper feed motor is damaged, please ask the technical personnel to replace it;
The main control board is damaged, please ask the technical personnel to replace it.
3) Problems: Paper feeding is continuously.
Possible causes and solutions:
The currently used paper type is not accordant with the printer setting, please print self-test page to
confirm the printer setting and use the correct paper.
- 39 -
BTP-M300 Service Manual