Paper loading (semi-automatic loading)
When the paper roll is manually inserted into the paper feed roller, the paper detection switch in the paper
path detects the paper, and semi-automatic loading is executed. (Semi-automatic loading is the function
that automatically feeds paper to the top of the paper feed frame assembly when a paper roll is inserted
in the paper path after the detector detects no paper.)
Paper feeding
Paper feeding is performed by conveying the paper feed motor’s rotational power from the paper feed
motor gear through the paper feed reduction gear, paper feed gear, and paper feed roller.
Since the paper feed roller and paper hold roller are pressed together, paper advances to the top of the
paper feed frame assembly because of the friction between the rubber of the paper feed roller and the
paper hold roller.
Figure 2-7 Paper loading
Paper
Paper feed
Upper paper guide
Guide roller
Upper case
Paper feed roller
Base frame assembly
Paper hold roller
Paper hold
plate spring
frame
— 31 —
Содержание UP-250
Страница 1: ...EXTERNAL PRINTER FEB 2000 MODEL UP 250 without price TECHNICAL MANUAL ...
Страница 95: ... 86 END END Yes No Action 4 Replace main PCB Replace printer OK Action 4 mechanism assembly ...
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Страница 149: ... 140 Main Circuit Board Parts Layout ...
Страница 150: ... 141 RS 232 Serial Interface Circuit Board Parts Layout ...
Страница 151: ... 142 IEEE 1284 Parallel Interface Circuit Board Parts Layout ...
Страница 152: ...RS 485 Serial Interface Circuit Board Parts Layout 143 ...
Страница 159: ... 150 Printer Mechanism Unit Lubrication Points Diagram 1 O 10 2 G 31 6 G 31 7 G 31 5 G 31 7 G 31 8 G 31 ...
Страница 160: ... 151 Case Unit Lubrication Points Diagram 4 G 31 4 G 31 3 G 31 3 G 31 ...
Страница 163: ... 154 EXPLODED DIAGRAM FOR TM U200B U210B NO 1 ...
Страница 164: ... 155 EXPLODED DIAGRAM FOR TM U200B U200PB U210B U210PB NO 2 ...