Brother SC-2000 Service Manual page 142

Cause of Electronic Error
Error mode
No key-in is Is there a key
possible. pressed?
Printing is Is the thermal
performed with a head dirty?
given dot omitted.
No printing is Is the thermal
performed. head voltage
within 19V 0.1V
when printing?
The size of a stamp Are the stamp
can not be correctly size detection
detected. switches
properly turned
on/off?
A draft sheet or an Does the
ID label that is fed manual feed
manually can not be detection
detected. reflective sensor
function
correctly?
Checking method
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Cause
Defective Replace the
control panel control panel
PCB assy. PCB assy.
Improperly Replace the
attached control panel.
control panel
Defective #13 Replace the
main PCB
assy.
Dirty thermal Clean the
head thermal head.
Defective Replace the
thermal head thermal head.
Defective Replace the
thermal head thermal head.
Defective #17 Replace the
and #19 main PCB
assy.
Defective #13 Replace the
main PCB
assy.
Defective size Replace the
detection PCB size detection
assy PCB assy.
Defective #19 Replace the
main PCB
assy.
Defective Replace the
reflective reflective
sensor assy sensor assy.
IV - 2
Action Service manual
CHAPTER III
1.15
Size Detection,
Ribbon Cassette,
Open Cover
Detection, and Key
Scanning Circuit
CHAPTER III
1.3
Thermal Head
Drive Circuit
CHAPTER III
1.4
Thermal Head
Power Supply
Control Circuit
CHAPTER III
1.15
Size Detection,
Ribbon Cassette,
Open Cover
Detection, and
Key Scanning
Circuit
CHAPTER III
5
SIZE
DETECTION
CIRCUIT
CHAPTER III
1.19
Reflective Sensor
Circuit
CHAPTER III
6
REFLECTIVE
SENSOR ASSY
CIRCUIT
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