Read Sharp ER-A450S (serv.man5) Service Manual online
[STANDARD KEYBOARD LAYOUT]
SUMCHECK DATA = A4 + 0E + 04 + 2B + 17 +
⋅
⋅
⋅
⋅
⋅
⋅
⋅
⋅
= 2243
Display the following message on the front display.
3) Check items
a) Check of the display in the test and the content of end print.
4) Test termination
This check is terminated automatically.
The test terminates with the test and message printed
[5] Mode switch test
1) Key operation
2) Functional description
Display the following message on the front display.
When the Mode Switch is switched over in the following order, a
numerical value corresponding to each position of mode switch is
displayed at X.
numerical value corresponding to each position of mode switch is
displayed at X.
3) Check items
a) Check of the display in the test and the content of end print.
4) Test termination
The test terminates with the test and message printed
[6] Printer sensor test
1) Key operation
2) Functional description
State of the paper near end sensor is sensed and displayed.
3) Check items
Displayed
Description
W (NER)
0
Receipt paper near end sensor:
Detected
Detected
1
Receipt paper near end sensor: Not
detected
detected
X (NEJ)
0
Journal paper near end sensor: Detected
1
Journal paper near end sensor: Not
detected
detected
Y (RPES)
0
Receipt paper end sensor: Detected
1
Receipt paper end sensor: Not detected
Z (JPES)
0
Journal paper end sensor: Detected
1
Journal paper end sensor: Not detected
"1" is always display when no sensor is used.
4) Test termination
Press any key. The test terminates with the test and message printed
44
43
3A 4D 4E
42
37
38
39
30
26
R
J
3F
3E 3D 34
33
28
2D 23
2E 2F
25
A4 2B 21
2A 20
29
1F
1E 4C 4B 24
1C 1B
0E 17
18
16
48
15
47
46
0F
05
10
12
04
0D 03
0C 02
0B 01
00
1A 19
06
08
11
1 0 4
Key code
Normal end
Error
1 0 4
1 0 4
E-----
105
TL
1 0 5
X
Mode:
x :
PGM2
OFF
OP X/Z
SRV
0
PGM1
1
2
9
3
X2/Z2
MGR
REG
SRV
0
X1/Z1
7
6
5
4
Normal end
Error
1 0 5
1 0 5
E-----
106
TL
1 0 6
WX-YZ
State of JPES
(Journal paper end sensor)
State of RPES
(Receipt paper end sensor)
State of NEJ
(Journal paper near end sensor)
State of NER
(Receipt paper near end sensor)
1 0 6
5 – 3
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