Service manual

CBM-270 Service Manual
15 CITIZEN
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Phenomenon Cause Check Method Repair Method
Faulty power supply Check whether or not
the specified
AC adapter is used.
Use the specified
AC adapter.
Faulty mounting and
connection of printer
mechanism
Check mounting and
connection of the
printer mechanism.
Mount the printer
mechanism properly.
The printer operates
properly except not
printing.
Check whether or not
the specified paper is
used, and whether or
not the specified paper
is set inside out.
Set the specified paper
properly.
Faulty printer
mechanism
---
Replace the printer
mechanism.
No printing
The head is heated due
to continuous print,
etc.
Wait for some time. Reset automatically.
Faulty power supply Check whether or not
the specified
AC adapter is used.
Use the specified
AC adapter.
Non-recommended
paper
Set print concentration
higher with the DIP
switch.
Replace with the
recommended paper or
its equivalent.
Thin printing color
Faulty thermal head
---
Replace the thermal
head.
Faulty printer
mechanism connection
Check whether or not
the printer mechanism
cable is connected
properly.
Connect the printer
mechanism cable
properly.
Foreign substance
adhered to the thermal
head or platen roller
Check the thermal
head and platen roller
for any foreign
substance.
Dip a cotton swab or
soft cloth in ethyl
alcohol and wipe off
the foreign substance.
Missing dots
Faulty thermal head
---
Replace the thermal
head.
Faulty connection of
printer mechanism
Check whether or not
the printer mechanism
cable is connected
properly.
Connect the printer
mechanism cable
properly.
Missing dots in specific
section
Faulty thermal head
---
Replace the thermal
head.
Low print quality Faulty printing paper Check whether or not
the specified printing
paper is used.
Replace with the
recommended paper or
its equivalent.