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2LK/2LN/2LM/2LC
1-4-70
7800
Broken outer temperature
sensor 1 wire
The sensor input sampling is
greater than 255.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Outer temperature sensor 1 and front PWB
(YC16)
Front PWB (YC2) and engine PWB (YC10)
Defective outer
temperature sen-
sor 1.
Replace outer temperature sensor 1.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-54).
7810
Short-circuited outer tem-
perature sensor 1
The sensor input sampling is
less than 0.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Outer temperature sensor 1 and front PWB
(YC16)
Front PWB (YC2) and engine PWB (YC10)
Defective outer
temperature sen-
sor 1.
Replace outer temperature sensor 1.
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-54).
7901
Drum K EEPROM error
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated five times
successively.
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Drum PWB K and front PWB (YC7)
Front PWB (YC2) and engine PWB (YC10)
Defective drum
PWB K.
Replace the drum unit K (see page 1-5-36).
7902
Drum C EEPROM error
No response is issued from
the device in reading/writing
for 5 ms or more and this
problem is repeated five times
successively.
Mismatch of reading data from
two locations occurs 8 times
successively.
Mismatch between writing
data and reading data occurs
8 times successively.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Drum PWB C and front PWB (YC12)
Front PWB (YC2) and engine PWB (YC10)
Defective drum
PWB C.
Replace the drum unit C (see page 1-5-36).
Code
Contents
Causes
Check procedures/
corrective measures
Summary of Contents for TASKalfa 3050ci
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 24: ...2LK 2LN 2LM 2LC 1 1 10 This page is intentionally left blank ...
Page 94: ...2LK 2LN 2LM 2LC 2 1 2 70 This page is intentionally left blank ...
Page 550: ...2LK 2LN 2LM 2LC 2 2 12 This page is intentionally left blank ...
Page 660: ...2LK 2LN 2LM 2LC 2 4 10 This page is intentionally left blank ...
Page 682: ...1 1 INSTALLATION GUIDE INSTALLATION GUIDE FOR DOCUMENT PROCESSOR ...
Page 717: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 730: ...INSTALLATION GUIDE FOR LARGE CAPACITY FEEDER ...
Page 745: ...INSTALLATION GUIDE FOR SIDE DECK ...
Page 767: ...INSTALLATION GUIDE FOR SIDE MULTI TRAY ...
Page 803: ...INSTALLATION GUIDE FOR 1000 SHEETS FINISHER ...
Page 816: ...INSTALLATION GUIDE FOR 4000 SHEETS FINISHER ...
Page 832: ...INSTALLATION GUIDE FOR FINISHER ATTACHMENT KIT ...
Page 846: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 863: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 871: ...INSTALLATION GUIDE FOR PUNCH UNIT ...
Page 891: ...INSTALLATION GUIDE FOR INNER JOB SEPARATOR ...
Page 892: ...1 2 3 A B ...
Page 893: ...7 8 4 5 6 ...
Page 894: ...11 9 10 ...
Page 895: ...A 1 2 3 2 14 15 12 13 16 ...
Page 896: ...B 3 2 1 2 19 17 18 ...
Page 897: ...21 22 20 ...
Page 898: ...26 27 23 24 28 25 ...
Page 899: ...30 29 ...
Page 900: ...INSTALLATION GUIDE FOR RIGHT JOB SEPARATOR ...
Page 901: ...5 1 2 3 4 5 7 7 6 A B C A B ...
Page 902: ...9 10 11 12 13 14 7 8 Ԙ ԙ Ԙ ԙ C ...
Page 903: ...INSTALLATION GUIDE FOR FAX SYSTEM ...
Page 928: ...INSTALLATION GUIDE FOR DOCUMENT TABLE ...
Page 929: ...A C D E F I B G H J M4 14 2 M4 8 7 2 3 1 ...
Page 930: ...5 6 7 4 C A B ...
Page 931: ...8 I 9 J 9 ...
Page 932: ...14 10 11 13 D J 12 ...
Page 933: ...G E F 18 15 16 17 J ...
Page 934: ...H 19 20 ...
Page 935: ...2011 ...
Page 936: ...2011 ...