Product Description
LQ-300
Service Manual
1.4.4 Micro Adjustment Function
To enter adjustment mode, press the Pause button for three seconds, until the printer beeps once
and the
Pause
lights
bhnk
to indicate that the adjustment
operation is available. If the printer state
is not one of the conditions shown below, this operation is ignored.
● TOF position adjustment:
The position can be adjusted just after the paper is loaded.
● Tear-off position adjustment:
The position can be adjusted when paper is actually located at the tear-off position.
In the adjustment mode, press the
LF/FF button
to feed paper forward and the
Font
button to feed
paper backward. You can cancel adjustment mode by pressing the
Pause
button or inputting a
print coremand. The adjusted position is stored in non-volatile memory.
1.4.5 Printer Status Indication
This section describes how the printer indicates status and error conditions using LEDs and the
beeper.
The symbols below describe the frequency of beeper sounds.
(.):
The beeper sounds for 100 rns with an interval of 100
ma
between beeps.
(—): The beeper sounds for500rns.
While initialize
signal is active:
During initialization:
Standby or printing state:
Pause state:
Micro adjustment mode:
Tear-off:
Paper-out error
state(”l)
Operating error (~), fatal error (*3):
Pause light is on.
Pause light blinks
Pause
light is off
Pause light is on
Beeper sounds (
●
)
and
Pause light blinks.
(light
on:off
ratio=
1:1)
Pause light blinks (light
on:off
ratio=
1:6)
Beeper sounds (.. . ) and Pause light blinks
(light
on:off
ratio=
6:1)
Beeper sounds (—
) and Pause light is on.
Notes:
(*1):
A paper-out error occurs with any of the following conditions:
●
Paper is not loaded after loading is attempted.
●
A full sheet finishes printing after single sheet loading by manual insertion.
●
The end of
condrmous
paper is reached.
When a paper-out error occurs, the printer stops printing and enters the pause state. After
that, when a sheet is loaded, the PAUSE light stops blinking and the light stays on, but
the printer remains in the pause state. Press the PAUSE button to start printing.
f
.
.
.
‘~
.,
.
.
(*2):
An operating error occurs for any of the following conditions:
●
The release lever is set to the TRACTOR position without ejecting cut sheets.
●
The release lever is set the FRICTION position without ejecting continuous paper.
(*3):
A fatal error occurs with any of the following conditions:
●
Power supply voltage is abnormal.
●
Printhead temperature is abnormal.
.,
1-18
Rev. A
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