Oki C821 Maintenance Manual

44015503TH Rev. 1
6 /
Oki Data CONFIDENTIAL
CONTENTS
7.5.3.(3) White print (Refer to Figure 7-2 C.) ...................................214
7.5.3.(4)
Black banding/black streaking in vertical direction ............215
7.5.3.(5)
Cyclic abnormality (Refer to Figure 7-2 E.) ......................215
7.5.3.(6)
Heavy color registration error ............................................216
7.5.3.(7)
Entirely black print .............................................................216
7.5.3.(8)
For the entire monochrome print, it does not being printed. 217
7.5.4
Network troubleshooting .....................................................................218
7.5.4.1
Connection error occurs with the Web browser .................218
7.5.4.2
Print operation is not possible ...........................................224
7.5.4.3
Cannot create Certificate ...................................................225
7.5.4.4
Installation of Certificate is not possible ............................225
7.5.4.5
Other questionnaires .........................................................227
7.5.4.6
Restrictions when using Internet Explore 7 .......................229
7.6
Fuse check ......................................................................................................230
7.7
Paper cassette switches versus Paper size correspondence table .................231
7.8
Data protection kit-A3 .....................................................................................232
7.8.1
Data protection kit-A3 (DPK-A3) overview .........................................232
8. CONNECTION DIAGRAMS ..................................................236
8.1 Resistance value check ..................................................................................237
8.2 Parts location ..................................................................................................241
8.3
F/W version number ........................................................................................251
8.3.1
ROM control number ..........................................................................251
8.3.2
ROM version check and display .........................................................251
8.3.3
PCB Maintenance Indication Stamp ...................................................252

Oki C821 Specifications

General

Brand	Oki
Model	C821
Category	All in One Printer
Language	English