28
HAI SENSOR ERROR
• The Head Adjust (hereinafter HA) Sensor detects an error when the
head is moved to the home position for HA.
Check to determine whether anything is obstructing the operation of
the HA Motor.
Check the connection of the HA Sensor harness. If it is connected
properly, replace the HA Sensor or the Main PCB.
HA SENSOR ERROR
• The printer fails to detect the paper thickness during head
adjustment.
Check the connection of the HA Encoder harness. If it is connected
properly, replace the HA Encoder PCB or the Main PCB.
HOME SENSOR
ERROR
• The printer fails to detect the print-head position. (Carriage Error)
Check to determine whether anything is obstructing the operation of
the HC Motor.
Check the connection of the Home Sensor harness. If it is
connected properly, replace the Home Sensor or the Main PCB.
FUNCTION MCMTR1
ERROR
• The MC Sensor (Front Friction) detects an error when the printer is
initialized or when the front friction is adjusted.
Check to determine whether anything is obstructing the operation of
the Front Friction Motor.
Check the connection of the MC Sensor (Front Friction) harness. If
it is connected properly, replace the MC Sensor (Front Friction) or
the Main PCB.
FUNCTION MCMTR2
ERROR
• The MC Sensor (Rear Tractor) detects an error when the printer is
initialized or when the paper feed path is changed.
Check to determine whether anything is obstructing the operation of
the Rear Tractor Motor.
Check the connection of the MC Sensor (Rear Tractor) harness. If it
is connected properly, replace the MC Sensor (Rear Tractor) or the
Main PCB.
Summary of Contents for Accel-7350
Page 1: ...1 Accel 7350 Dot Matrix Printer Service Manual Document 130034 ...
Page 24: ...23 Wiring Diagram ...
Page 25: ...24 Control Diagram ...
Page 36: ...35 Extra Dot Printing Improper character ...
Page 37: ...36 Incorrect Printing Irregular print data ...
Page 38: ...37 No LCD Display Half of the LCD lights up ...
Page 39: ...38 No LCD Display Completely blank ...
Page 40: ...39 Control Keys Not Functioning ...
Page 41: ...40 No Buzzer Abnormal Ribbon Feeding Causing abnormal carriage movement ...
Page 42: ...41 No Line Feed or Inconsistent Line Feeding ...
Page 43: ...42 Carriage Error ...
Page 44: ...43 ...
Page 46: ...45 Cover Open Error Will Not Cancel With Cover Closed ...
Page 47: ...46 No Fanfold Paper Reverse Line Feed ...
Page 48: ...47 Printing Does Not Stop After Paper Is Ejected ...
Page 49: ...48 Not Powering Up ...
Page 94: ...93 Indicator Circuit ...
Page 95: ...94 I F Circuit ...
Page 96: ...95 Slide SW Circuit ...
Page 97: ...96 Power Circuit ...
Page 98: ...97 Exploded View 1 6 Following pages require Legal size paper for printing ...
Page 99: ...98 Exploded View 2 6 ...
Page 100: ...99 Exploded View 3 6 ...
Page 101: ...100 Exploded View 4 6 ...
Page 102: ...101 Exploded View 5 6 ...
Page 103: ...102 Exploded View 6 6 ...
Page 119: ...126 ...