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[2] Diagnostics and service soft switch
1. Operating procedure
(1) Entering the diagnostic mode
Press FUNC → 9 →
→ 8 → # → 7 , and the following display will appear.
ROM Ver. TA29
(TA30 , TA28 ) After 2 sec: DIAG MODE
TA29
(UX-A450DE/NX-A550DE)
TA30
(UX-A450IT/NX-A550IT/FO-A650IT)
TA28
(UX-A450H)
Then press the START key. Select the desired item with the
(Diag•specifications)
FUNC
9
8
If the diag mode cannot be set, repeat the diag mode operation, per-
forming the following operation.
After the power is turned on and "WAIT A MOMENT" is indicated, press
the STOP key.
2. Diagnostic items
ITEM No.
Contents
1
SOFT SWITCH MODE
2
ROM & RAM CHECK
3
AGING MODE
4
PANEL KEY TEST
5
CHECK PATTERN
6
SIGNAL SEND MODE
7
MEMORY CLEAR
8
SHADING MODE
9
ALL BLACK PRINT
10
AUTO FEEDER MODE
11
MESSAGE PRINT
12
FLASH MEMORY CHECK
13
FLASH MEMORY CLEAR
TA29
TA30
7
DIAG MODE
TA28
Soft switch mode
ROM & RAM check
Aging mode
Panel key test
Check pattern
Signal send mode
Memory clear
STOP
KEY
+
"Power ON"
Memory clear
(Work + Backup)
Soft switches are displayed and changed. List can be output.
ROM is sum-checked, and RAM is matched. Result list is output.
10 sheets of check patterns are output every 5 minutes per sheet.
Panel keys are tested. Result list is output.
Check pattern is output.
Various signals of FAX communication are output.
Back-up memory is cleared, and is set at delivery.
Shading compensation is performed in this mode.
To check the print head, whole dots are printed over the interval of 2 m.
Insertion and discharge of document are tested.
The display message of each language is printed out together with the English equivalent.
(DE/IT only)
Checks flash memory write/read.
Checks flash memory clearing.
key or the
key or select with the rapid key. Enter the mode with the START key.
START
START
START
START
START
START
START
START
START
KEY
In relation with the process response (request from Production Engi-
neering) "WAIT A MOMENT" clock indication may appear depending on
STOP key timing. If the STOP key is held down, "MEMORY CLEAR?"
appears.
2 – 2
UX-A450DE/IT/H
NX-A550DE/IT/FO-A650IT
Flash memory clear
START
START
Flash memory check
Message print
START
(DE/IT only)
Auto feeder mode
START
All black print
START
Shading mode
START
Function
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