
2NP
1-4-14
0130
Backup memory read/write
error (main PWB)
Mismatch between writing
data and reading data succes-
sively.
Defective NAND.
Turn the main power swtch off and after 5
seconds, then turn power on.
Defective PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0140
Backup memory data error
(main PWB)
When the data read from
NAND is abnormalities
Defective flash
memory.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Execute U021 - memory initializing.(see
page 1-3-32)
Defective PWB.
Replace the main PWB and check for cor-
rect operation (see page 1-5-37).
0150
Backup memory read/write
error (engine PWB)
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated 5 times
successively.
Mismatch of reading data from
2 locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
The engine PWB
EEPROM was
improperly
installed.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Check that the EEPROM is peroperly
installed on the engine PWB and re-
install it.
Defective PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-39).
Defective
EEPROM.
Check the EEPROM and if the data are cur-
rupted, contact the service support.
0160
Backup memory data error
(engine PWB)
Defective flash
memory.
1. Turn the main power swtch off and after
5 seconds, then turn power on.
2. Execute U021 - memory initializing.(see
page 1-3-32)
Defective PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-39).
Defective
EEPROM.
Check the EEPROM and if the data are cur-
rupted, contact the service support.
0170
Billing counting error
A checksum error is detected
in the main and engine
backup memories for the bill-
ing counters.
Data in the
EEPROM .
1. Check that the EEPROMs installed in
the main PWB and the engine PWB are
correct and, if not, use the correct
EEPROM for the model.
2. If the EEPROM data are currupted,
contact the service support.
Defective PWB.
Replace the main PWB or the engine PWB
and check for correct operation
(see page 1-5-37, 1-5-39).
Code
Contents
Causes
Check procedures/
corrective measures
Summary of Contents for TASKalfa 2551ci
Page 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
Page 10: ...This page is intentionally left blank ...
Page 97: ...2NP 1 1 2 74 This page is intentionally left blank ...
Page 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
Page 473: ...2NP 1 5 62 This page is intentionally left blank ...
Page 497: ...2NP 2 1 22 This page is intentionally left blank ...
Page 555: ...2NP 2 3 48 This page is intentionally left blank ...
Page 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Page 620: ...DP 773 Document processor Installation Guide ...
Page 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Page 654: ...PF 810 3000 sheets deck Installation Guide ...
Page 667: ...DF 770 D Document finisher Installation Guide ...
Page 685: ...AK 740 Bridge unit Installation Guide ...
Page 687: ...PH 7A C D Punch unit Installation Guide ...
Page 708: ...DT 730 B Document tray Installation Guide ...
Page 710: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8 ...
Page 711: ...FAX System W B Installation Guide ...