Oki Data CONFIDENTIAL
43967002TH Rev. 1
316 /
7. Troubleshooting
7.5.2 Troubleshooting
Note! When an attempt is going to be made to replace the PU PCB, be sure to read
the data contents of the EEPROM chip from the old PU PCB beforehand, and
copy the data contents into the new PCB after the new PU PCB is installed.
(Refer to 5.4.1 Precautions when replacing the engine control PCB)
7.5.2.(1) LCD display error ......................................................................................317
(1-1)
LCD does not display anything. ...........................................................317
(1-2) From the star
tup screen after power-on: .............................................318
(1-3) Error messages related to Operator P
anel are displayed. ...................318
7.5.2.(2) Abnormal operations of printer after the power is turned on ....................318
(2-1) Any oper
ation does not start at all .......................................................318
(2-2) Abnormal sound is heard
.....................................................................319
(2-3) Bad odors are generated. ....................................................................
320
(2-4) Rise-up time is slow
. ............................................................................320
7.5.2.(3) Paper feed jam (error 391: 1st tray) .........................................................327
(3-1) Jam occurs immediately after the po
wer is turned on. (1st tray) .........327
(3-2) Jam occurs immediately after the paper f
eed is started. (1st tray) ......327
7.5.2.(4) Feed jam (error code 380) .......................................................................329
(4-1) Jam occurs immediately after the po
wer is turned on..........................329
(4-2) Jam occurs immediately after the paper f
eed is started. .....................329
7.5.2.(5) Paper feed jam (error code 390: Multipurpose tray) ................................330
(5-1) Jam occurs immediately after the po
wer is turned on.
(Multipurpose tray) ...............................................................................330
(5-2) Jam occurs immediately after paper f
eed is started.
(Multipurpose tray) ...............................................................................331
7.5.2.(6) Paper running jam (error code 381: ..........................................................332
(6-1)
Jam occurs immediately after the po
wer is turned on..........................332
(6-2) Jam occurs immediately after a paper is tak
en into printer. .................332
(6-3) Jam occurs in the middle of paper r
unning path. .................................333
(6-4) Jam occurs immediately after paper has reached the fuser
. ...............334
7.5.2.(7) Paper running jam (error code 382) .........................................................334
(7-1) Jam occurs immediately after the po
wer is turned on..........................334
(7-2) Paper unloading jam occurs after a paper is tak
en into printer. ...........335
(7-3) Paper unloading jam occurs in the middle of paper r
unning path. .......336
7.5.2.(8) Two-sided printing jam (error code: 370, 371, 372, 373, 383) .................336
(8-1) Tw
o-sided printing jam occurs immediately after the power is
turned on. .............................................................................................336
(8-2) Tw
o-sided printing jam occurs during taking in the paper into
Duplex unit. ..........................................................................................337
(8-3) Tw
o-sided printing jam occurs in the process of reversing paper. .......337
(8-4) Tw
o-sided printing jam occurs during transporting paper inside
the Duplex unit. ....................................................................................338
(8-5) Paper is not supplied from the Duple
x unit to the regist roller. .............338
7.5.2.(9) Paper size error (error code 400) ............................................................338
(9-1)
Jam occurs when paper end is located near the IN1 sensor
. ..............338
7.5.2.(10) ID unit Up/Down error (Service call 140 to 143) ...................................339
(10-1) Error occurs when the ID unit mov
es down .........................................339
(10-2) Error occurs when the ID unit mov
es down .........................................339
7.5.2.(11) Fuser unit error (error 170 to 177) ........................................................340
(11-1) Jam occurs immediately after the po
wer is turned on..........................340
(11-2) Error occurs approx.
1 minutes after the power is turned on. ..............340
7.5.2.(12) Motor fan error (error code 122, 127, 051) ...........................................341
(12-1) The low v
oltage power supply fan does not rotate immediately
after the power is turned on. ................................................................341
(12-2) Duplex f
an does not rotate during the Duplex printing. ........................341
(12-3) All fans of the pr
inter do not rotate. ......................................................341
7.5.2.(13) Print speed is slow. (Performance is low.) .............................................341
(13-1) Print speed decreases
. ........................................................................341
7.5.2. (14) Option unit cannot be recognized. .........................................................342
(14-1) Duplex unit cannot be recogniz
ed. .......................................................342
(14-2) 2nd tra
y unit cannot be recognized. .....................................................342
7.5.2.(15) LED head cannot be recognized. (error code 131, 132, 133, 134) .......343
(15-1) Service call 131 to 134 (LED HEAD Missing)
......................................343
7.5.2.(16) Toner cartridge cannot be recognized. (Error code 540, 541, 542, 543) ...
343
(16-1) Error caused by the consumable items ...............................................343
(16-2) Error caused by the toner sensor
........................................................343
(16-3) Error caused by the def
ective mechanism ...........................................344
7.5.2.(17) Fuse cut error (error codes 150 to 155) .................................................345
(17-1) Fuse cut error ......................................................................................
345
7.5.2.(18) Dew condensation error (Error 123) ......................................................345
(18-1) Dew condensation error
.......................................................................345
7.5.2.(19) Connection diagram ...............................................................................346