Printer Mechanism Control System; Thermal Head Control System (Division Driving System); Fixed Division Number System; Variable Division Number System - Citizen BD2-2880 User Manual

9. PRINTER MECHANISM CONTROL SYSTEM

9.1 Thermal Head Control System (Division Driving System)

The MLT-288 (Line thermal printer) is driven by this control board has a384 dots/line head
divided into 6 blocks of 64 dots each. When actually driving the head, you can select either
Fixed Division Number system, which drives the head, always dividing it into 6 blocks or
Variable Division Number system which collectively drives several blocks at the time according
to the number of activated head dots.
For selection by function selection, see 4. DIP SWITCH SETTING.
For selection by a command, see 11. PRINT CONTROL FUNCTIONS.

9.1.1 Fixed Division Number System

This system always drives each block in the same sequence.
1st Block
64 Dots
1st Step of Motor
Note: for a stepping motor driving method, see 9.2 Motor Drive.

9.1.2 Variable Division Number System

This system counts the number of printing dots for each block of the printing dot line and drives
the blocks collective in such a manner not to exceed the maximum number of driving dots (64
dots).
1st Block
64 Dots
2nd Block 3rd Block
64 Dots 64 Dots
2nd Block
3rd Block
64 Dots
64 Dots
1st Step of Motor
1st Step of Motor
4th Block
64 Dots
2nd Step of Motor
5th Block
4th Block
64 Dots
64 Dots
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BD2-2880/2890 User's Manual
6th Block
5th Block
64 Dots
64 Dots
6th Block
64 Dots
2nd Step 2nd Step of Motor
1 Dot Line
1 Dot Line