Electronics Specifications; Character Generator; Power Supply - Brother PT-1090 Service Manual

1.2 Electronics Specifications

1.2.1

Character Generator

(1) Internal characters
(2) Internal fonts
(3) Text buffer
(4) File memory
(5) Memory backup
No dedicated backup battery is provided. However, the memory is backed up for
5 minutes even after:
1) you remove the dry cells (e.g., at the replacement time of dry cells) without
connection of the optional AC adapter.
2) you unplug the optional AC adapter (being plugged in the AC jack of the
machine) from the wall socket without dry cells loaded.
If the machine is loaded with dry cells when you unplug the AC adapter (being
plugged in the AC jack of the machine) from the wall socket, the memory will be
backed up by those dry cells.
1.2.2

Power Supply

(1) Power supply
(2) Battery type
(3) Service life of batteries
(4) Automatic powering-off
(5) Low battery detection and indication
When the machine is driven by dry cells:
- If the voltage level exceeds 10.96 V or drops below 5.63 V when the machine is
on standby, the machine automatically turns itself off.
- If the voltage level drops below 5.63 V, 5.36 V, or 4.33 V during printing, the
machine displays the "BATTERY" message to warn the user of the low battery
after completion of printing, stops printing, or shuts down the power immedi-
ately, respectively.
When the machine is driven via the AC adapter:
- If the input voltage is out of the specified level range, the machine immediately
shuts down the power.
387
HELSINKI, BELT, DOT
Max. 80 characters
(Decoration label: Max. 50 characters)
9 files
Driven by 6 dry cells
Optional AC adapter available
- AD-24ES US
- AD-24ES EU
- AD-24ES UK
Alkaline dry cells (LR03) that come with the
machine.
Will last through one 12-mm wide tape cassette,
and then some (at room temperature and nor-
mal humidity).
Yes (If the machine remains unused for approx.
5 minutes, it automatically turns itself off.)
I - 4