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3-8. CLERK KEY DIAGNOSTICS
(European model only)
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 service diagnostics
menu.
3-9. PRINTER DIAGNOSTICS
The parallel interface (standard) is tested.
The following menu is displayed.
Printer Diagnostics
Standard
PARALLEL Loop Back Check
PARALLEL Print Check
Option(UP-T80BP)
Print Check
The highlighted cursor is moved by the cursor keys (UP 2 and DOWN 4 )
on the PS2 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 service
diagnostics menu.
1) PARALLEL LOOP BACK CHECK
1 Checking content
To check the parallel port DSub 25 pin, use the connector (UKOG-
2366BHZZ) for Parallel Loop Back Test.
Wiring is as shown below:
Perform the loop back check with the following combination of paral-
lel ports (standard provision).
2 Display
PARALLEL Loop Back
D0-STROB
D1-AF
D2-INT
D3-SLCTN
D4-ERROR & SLCT
D5-PE
D6-ACK
D7-BUSY
3 Terminating method.
Press the Esc key to terminate and return to the Printer diagnostics
menu.
2) PARALLEL Print Check
1 Checking content
The print check is performed for the standard port PARALLEL at I/O
address 378H ~ 37FH. In the print check mode the D-Sub 25 pin
connector is connected with a printer to allow a print pattern test.
The test procedures are as follows:
i.
Data of 55H is written to I/O address 378H, and the same
address is read. If the read data is not 55H, "PARALLEL Chan-
nel Disabled" is displayed and the following check is not per-
formed.
ii. Characters of 20H ~ 7FH (ASCII code) are printed and the line
is changed.
This procedure is repeated for 5 times.
2 Display
PARALLEL Print Check
"PARALLEL Channel Disabled" is displayed only when no access to
PARALLEL is allowed.
3 Terminating method.
Press the Esc key to terminate and return to the Printer diagnostics
menu.
UP-5900VS DIAGNOSTICS SPECIFICATIONS
4 – 5
(D0) – (STROBE#)
(D1) – (AF#)
(D2) – (INIT#)
(D3) – (SLCTIN#)
(D4) – (ERROR#) – (SLCT)
(D5) – (PE)
(D6) – (ACK#)
(D7) – (BUSY)
Printer Diagnostics
: OK! (or ERROR!)
: OK! (or ERROR!)
: OK! (or ERROR!)
: OK! (or ERROR!)
: OK! (or ERROR!)
: OK! (or ERROR!)
: OK! (or ERROR!)
: OK! (or ERROR!)
PARALLEL Channel Disabled
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