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BLOCK DIAGRAM
1c2
KEY MATRIX
MODE MATRIX
KEY RETURN SIGNAL
MODE RETURN SIGNAL
RES
X2
XT1
XT2
x1
OPENING THE UNIT
1, Disassembling.
(1) Disconnect AC cord.
(2) Detach the printer cover.
(3) Push and lift the loweredge of cabinet (A).
Fig. 1
2. Removing the printer.
(1) Disconnect the flat cable (B)) and earth line (©).
TP
tP
PRINTER
M-4211
Pew —o] ORE
1C3
DRIVER
1c4
ORIVER
Qi
DRAWER
BUZZER
POWER DOWN
DETECTION
CIRCUIT 1C1, QZ
RESET CIRCUIT
1C1, Q2
Fig. 2
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