Oki MC351 User Manual

44473001TH Rev.1
213 /
Oki Data CONFIDENTIAL
7. TROUBLESHOOTING PROCEDURES
(1) L
CD Display Trouble .................................................................................... 214
(1-1) LCD displays nothing ......................................................................... 214
(1
-2) Display of OKI logo ............................................................................ 215
(1
-3) Error message display ....................................................................... 215
(2
) Abnormal MFP operation after powered on .................................................. 215
(2
-1) No operation ....................................................................................... 215
(2
-2) Abnormal sound ................................................................................. 216
(2
-3) Abnormal odor .................................................................................... 217
(2
-4) Slow starting time ............................................................................... 217
(3
) Paper feed jam (error code 391: 1st tray) .....................................................227
(3-1) J
am occurs immediately after the power is turned on. (1st tray) ........227
(3-2) J
am occurs immediately after the paper feed is started. (1st tray) .....227
(4) F
eed jam (error code 380) ............................................................................229
(4-1) J
am occurs immediately after the power is turned on. .......................229
(4-2) J
am occurs immediately after the paper feed is started. ....................229
(5) P
aper feed jam (error code 390: Multipurpose tray) .....................................230
(5-1) J
am occurs immediately after the power is turned on.
(Multipurpose tray) ..............................................................................
230
(5-2) J
am occurs immediately after paper feed is started.
(Multipurpose tray) ..............................................................................
231
(6) P
aper running jam (error code 381:) ............................................................232
(6-1) J
am occurs immediately after the power is turned on. .......................232
(6-2) J
am occurs immediately after a paper is taken into printer. ................232
(6-3) J
am occurs in the middle of paper running path. ................................233
(6-4) J
am occurs immediately after paper has reached the fuser. ..............234
(7) P
aper unloading jam (error code 382) ..........................................................234
(7
-1) Paper unloading jam occurs immediately after the power is turned on. 234
(7-2) P
aper unloading jam occurs after a paper is taken into printer. ..........235
(7-3) P
aper unloading jam occurs in the middle of paper running path. .....236
(8) T
wo-sided printing jam (error code: 370, 371, 372, 373, 383) ......................236
(8-1) T
wo-sided printing jam occurs immediately after the power is
turned on. ...........................................................................................
236
(8-2) T
wo-sided printing jam occurs during taking in the paper into
Duplex unit. .........................................................................................
236
(8-3) T
wo-sided printing jam occurs in the process of reversing paper. ......237
(8-4) T
wo-sided printing jam occurs during transporting paper inside
the Duplex unit. ...................................................................................
237
(8-5) P
aper is not supplied from the Duplex unit to the regist roller. ............237
(9) P
aper size error (error code 400) .................................................................238
(9-1) J
am occurs when paper end is located near the IN1 sensor. .............238
(10) ID unit Up/Do
wn error (Service call 142) ......................................................238
(10-1) Error occurs dur
ing the Up movement of the ID unit ..........................238
(10-2) Error occurs dur
ing the Down movement of the ID unit ......................239
(11) Fuser unit error (error 170 to 177)
................................................................239
(11-1) Error occurs immediately after the po
wer is turned on. ......................239
(11-2) Error occurs appro
x. 1 minute after the power is turned on. ...............240
(12) Motor f
an error (error code 122, 128) ..........................................................241
(12-1) The lo
w voltage power supply fan does not rotate immediately after
the power is turned on. .......................................................................
241
(12-2) All f
ans of the printer do not rotate. .....................................................241
(13) Pr
int speed is slow. (Performance is low.) ....................................................241
(13-1) Pr
int speed decreases. .......................................................................241
(14) Option unit cannot be recogniz
ed. ................................................................241
(14-1) Option tr
y unit cannot be recognized. .................................................241
(15) LED head cannot be recogniz
ed. (error code 131, 132, 133, 134) ...............242
(15-1) Ser
vice call 131 to 134 (LED HEAD Missing) ....................................242
(16) T
oner cartridge cannot be recognized. (error code 540, 541, 542, 543) ......242
(16-1) Error caused b
y the consumable items. ..............................................242
(16-2) Error caused b
y the toner sensor .......................................................242
(16-3) Error caused b
y the defective mechanism ..........................................243
(17) Fuse cut error (error codes 153 to 155)
........................................................243
(17-1) Fuse cut error
.....................................................................................243
(18) Humidity sensor error (error code 123)
........................................................244
(18-1) Humidity sensor error
.........................................................................244
(19) Connection diag
ram .....................................................................................245
Note! When replacing the main board (M32 PCB), please read the content on the
E
EPROM chip of the old board and copy it to the new board. (Refer to 5.4.1
when exchange main board)
7.5.4 Preparing for troubleshootin

Oki MC351 Specifications

General

Brand	Oki
Model	MC351
Category	All in One Printer
Language	English