Citizen CBM-270 Service Manual page 15

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