15
XON/XOFF Protocol
A protocol whereby the printer sends to the host XON (11h) and XOFF (13h)
codes to indicate the printer the printer's state.
The XOFF (13h) code is sent to the host to indicate not ready. In either the
busy or offline state, CTS is held "low".
When the power is turned on, the XON code is sent to the host.
In the following cases, the XOFF code is sent to the host.
(1) When the printer state changes from ready to busy.
(2) When the printer state changes from ready to offline.
(3) When printer receives 64 bytes to data after condition (1) or (2) occurs.
(However, when the remaining capacity of the buffer is smaller than 64
bytes, the XOFF is not sent to the host).
(4) When the buffer is full regardless of the online state or the offline state.
In the following cases, the XON code is sent to the host.
(1) When the printer state changes from busy to ready.
(2) When the printer state changes from offline to online.
(3) After the power is turned on, when the printer enters the online state.
Baud Rate
In the setup mode, one of the following baud rates can be selected: 300, 600,
1200, 2400, 4800, 9600, and 19200.
Serial Data Structure: data frame consists of, start bit (1) + data bits (7 or 8) +
parity bit (0 or 1) + stop bit (1 or 2).
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 ...