３８
Chapter 5 Notice about the IrDA Infrared Interface
When use the IrDA infrared interface the user must notice the following:
1 The communication parameter must meet the following
Baud rate: 9600bps
Data bit: 8
Parity: none
Stop bit: 1
2 Make sure the infrared windows of the host and printer aim each other, that
is the View angle must within 30
°
3 Insure there is no obstacle between the host and printer, and the distance
must within 1 meter.
4 If the clobber and lost data occurred, refer to the section 1,2,3 above
5 If the printer doesn’t work when use the IrDA infrared interface, may sure
the RS-232 communication cable has been plugged out.
３９
Chapter 6 Notice about the Rechargeable Ni-MH Battery
6.1 Ni-MH Rechargeable Battery characteristics
6.1.1 Charging characteristics
The charging characteristic is affected by the current
、
temperature
、
time
etc. The current and the temperature affect Ni-MH rechargeable battery
charging characteristics obviously, temperature drop down or current increase
may cause the charging voltage rise.
We recommend you charge the battery with the current within 1C
（
1C
＝
1500mA
）
, the temperature within 0
o
C~40
o
C. Charging the battery usually in
the temperature exceed the range will lower the capability of the battery.
Overcharge the battery from time to time may be underutilized resulting
insufficient use of the available capability.
6.1.2 Discharging characteristics
The Ni-MH rechargeable battery is similar to the Ni-Cd rechargeable
battery. The discharge voltage is about 1.2 volt. The discharging characteristics
is affected by the current
、
temperature etc. The higher discharge current and
lower temperature the lower discharge voltage and efficiency. The maximum
continuous discharge current is 3C.
6.1.3 Cycle life characteristics
Cycle Life of the battery is more than 500 times when it use correctly.
The battery is chemical, the capacity will be dropped down after use for many
times also long time storage. Incorrect use may drop down the cycle life of the
battery.
6.1.4 Storage characteristics
The storage characteristics include the self discharge characteristic and
long time storage characteristic.
Self discharge indicates the phenomenon that the battery discharge in
open circuit. The self discharge characteristic is affect by the environment.
Research indicates that it is the best to store the battery with full charge
status. The battery should be stored in the temperature about 10
～
30
o
C and the
Summary of Contents for UP-PN24S
Page 25: ...Character code table 2...
