5 ] Internal Structure; How To Identify The Production Control Number; Pwb Arrangement - Sharp Z-21 Service Manual

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2. How to identify the production control
number
<<TD cartridge>>
The control number label is on the top of the TD cartridge, which
shows the year and the month of the production.
The last
digit of
the year
Destination
(1~9)
Destination
Japan Black option
Outside Japan Black option
Japan Red option
Outside Japan Red option
Japan Blue option
Outside Japan blue option
Japan Same package
Outside Japan Same package
31000819
[5] INTERNAL STRUCTURE

1. PWB arrangement

4
1
3
Serial No.
(00001 ∼ 99999)
The month
of the
production
Jan.
. . . 1
.
.
. .
. .
Sep.
. . . 9
Oct.
. . . 0
Nov.
. . . X
Dec.
. . . Y
No.
1
2
3
4
5
6
8
9
5
<Drum cartridge>
The control number label is on the top of the drum cartridge, which
shows the year and the month of the production.
The last
digit of
the year
Factory
(Normally "5")
Name
1
Main PWB
2
Power PWB
3
Operation PWB
4
Copy lamp PWB
Motor control
5
2
PWB
– 7 –
Serial No.
(00001 ∼ 99999)
The month
of the
production
Jan.
.
. .
Sep.
Oct.
Nov.
Dec.
Display position
35000019
<Display example>
Functions
In addition to overall function control,
this PWB also functions as the copy
lamp control circuit and the high
voltage
output
circuit
developing
bias).
The
sensor in on this PWB also.
This PWB supplies power to each load.
It is equipped with the power switch,
the power inlet, the interlock switch,
document table sensor, and the paper
entry sensor and the circuit which
generates developing bias.
Differs in the Z-21 and in the Z-26.
Different from the conventional models,
the PWB is equipped with a fuse bulb.
Pulses to control the drive motor and
the paper start (PS clutch ON timing)
are generated by the encoder attached
to the drive motor shaft, and are
converted into electrical signals.
. . . 1
.
. .
. . . 9
. . . 0
. . . X
. . . Y
(except
for
paper
exit

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Z-26

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