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3.3
Operating Switches
The 3 operating switches are of the push type and are located
in
the right hand section of the control
panel.
3.3.1
SEL
(Select)
Switch
(a)
SELECT and DESELECI' states alternate with every push.
(b)
When power is applied, the printer will become SELECT.
Data transmission and printing of data in the DATA BUFFER can be stopped temporarily. To
perfonn this operation, press the SEL switch with the LF switch already depressed. To resume
printing and data transmission, press the SEL switch.
3.3.2
LF (Line Feed) Switch
(a) One line feed occurs with every push.
(b) When the switch is kept depressed, paper is fed one line as far as 4 lines. Thereafter, continuous
forward line feed takes place until the switch is turned off.
(c) Line feed can be performed only when the printer is in a DESELECT state.
3.3.3
TOF (Top of Form) Switch
(a) When this switch is pressed, the paper feeds to the next TOF position.
(b) TOF can be performed only when the printer is in a DESELECT state.
(c) Paper advance is done only once even if this switch is kept depressed.
3.4
Alert Switches
3.4.1
PE (Paper Empty) Switch
(a) This is a microswitch located near the bottom of paper feed platen which detects the end of
paper or absence of paper.
(b) When the end of paper is detected, printing is stopped. When the SEL switch is pressed to con-
tinue printing, the printer prits one line and then stops.
Upon detection of paper empty by this switch, the PE lamp lights, and the printer is deselected.
The printer is deselected immediately when the printer power is turned on or if PE status has
been detected when an INPUT PRIME is entered.
3.4~2
Cover Interlock Switch
(a) This is an interlock switch which detects that the top cover is opened.
(b) Upon detection of cover opening during printing, the printer automatically stops and is deselect-
ed ·after printing one line. If not during printing, the printer is immediately deselected.
(c) To select the printer again, it is necessary that the SEL switch is depressed after closing the top
cover.
-16-
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