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3) Linearity test
1
Checking content
Red lines are displayed at both sides of the blue line at the center.
The operator must touch the blue line without touching the red
lines and drag from top to bottom.
The touched part of the blue line is changed to white.
If the red line is touched, an error message is issued.
2
Display
Linearity
Test
Complete!
(Error!!)
Displayed after termination.
Red line
3
Terminating method
Press Esc key to terminate and return to the Touch panel diagnos-
tics menu.
3-7. Clerk Key Diagnostics (Not used for "U"
version)
The clerk key input test is performed.
Pressing the Esc key returns to the serviceman diagnostics menu.
1) Clerk Key Check
1
Checking content
Key code inserted to the clerk key switch which is then displayed
in a decimal value.
2
Display
Clerk Key Check
Clerk Key Code
:
xx
The clerk code is displayed at XX.
3
Terminating method.
Press the Esc key to terminate and return to the Serviceman's
diagnostics menu.
3-8. Printer Diagnostics
The parallel interface (standard) and ER-A8RS parallel interface (op-
tion) are tested.
Here, the parallel interface on the main body is mentioned as PARAL-
LEL1, and the parallel interface on ER-A8RS as PARALLEL 2/3.
The following menu is displayed.
Printer Diagnostics
Standard
PARALLEL 1 Loop Check
PARALLEL 1 Print Check
About 2cm
About 1cm
Red line
Blue line
Option(ER-A8RS)
PARALLEL2 Loop Check
PARALLEL3 Loop Check
PARALLEL2 Print Check
PARALLEL3 Print Check
The highlighted cursor is moved by the cursor keys (UP ↑ and DOWN
↓) of the AT keyboard. Move the cursor to the desired item, and press
the Enter key to execute the selected diagnostics program.
When the selected diagnostics program is completed, the display
returns to the menu screen. Pressing the Esc key returns to the
serviceman diagnostics menu.
1) PARALLEL1 Loop Check
1
Checking content
A loop check is made for the standard I/O address 378H ∼ 37FH.
(PARALLEL1)
In the loop check, a normally-operating ER-A8RS is inserted and
the loop cable (UKOG-6717RCZZ) is connected between PARAL-
LEL1 and PARALLEL3 (ER-A8RS) for testing. Set the jumpers on
the PWB prior to the test as follows:
Signal name
1
STROBE-
DB0
2
3
DB1
DB2
4
5
DB3
DB4
6
7
DB5
DB6
8
9
DB7
ACK-
10
BUSY
11
PE
12
SLCT
13
14
AUTOFD-
ERROR-
15
16
INIT-
SLCTIN-
17
18~2
GND
Loop cable (UKOG-6717RCZZ) wiring diagram
J9
J10
L
H
5 7
Opposite ER-A8RS setting
Jumper pin setting diagram
2
Display
PARALLEL1 Loop Check
ACK- Signal
:
PASS !!(or ERROR !!)
BUSY Signal
:
PASS !!(or ERROR !!)
PE Signal
:
PASS !!(or ERROR !!)
SLCT Signal
:
PASS !!(or ERROR !!)
ERROR- Signal
:
PASS !!(or ERROR !!)
STROBE- Signal
:
PASS !!(or ERROR !!)
AUTOFD- Signal
:
PASS !!(or ERROR !!)
INIT- Signal
:
PASS !!(or ERROR !!)
SLCTIN- Signal
:
PASS !!(or ERROR !!)
INTERRUPT
:
IRQ X (or ERROR !!)
DATA Bus
:
PASS !!(or ERROR !!)
The interruption level is displayed at X.
When no access is allowed to PARALLEL1, the following display
is made.
4 – 6
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18~2
UP-5300 : PARALLEL1 OUTPUT MODE
A8RS : PARALLEL3 INPUT MODE
I
O
Signal name
STROBE-
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
ACK-
BUSY
PE
SLCT
AUTOFD-
ERROR-
INIT-
SLCTIN-
GND
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