Table of Contents
TOC - 3
OKIOFFICE 44
Service Manual, P/N 59276801
Section 3: Brief Technical Description ................................................... 3 - 1
Electrophotographic Process Flow .................................................................................................. 3 - 1
3.1
Fundamentals of the Electro-Photographic Process ............................................................ 3 - 2
3.2
Actual Electrophotographic Process .................................................................................... 3 - 5
3.3
Boards and Units ................................................................................................................. 3 - 6
Block Diagram (Figure 3.3.1).............................................................................................. 3 - 7
3.4
Overall Dimension and Mechanical Structure..................................................................... 3 - 8
Section 4: Disassembly ........................................................................... 4 - 1
4.1
General................................................................................................................................. 4 - 1
4.1.1
Precautions for Parts Replacement .......................................................................... 4 - 1
Service Caution ....................................................................................................... 4 - 2
4.1.2
Tools ........................................................................................................................ 4 - 3
4.1.3
How to Disassemble and Reassemble ..................................................................... 4 - 3
Disassembly Procedure Flow Figure 4.1 (1/2) ........................................................ 4 - 4
Disassembly Procedure Flow Figure 4.1 (2/2) ........................................................ 4 - 5
Whole Unit Picture .................................................................................................. 4 - 6
4.1.3.1
LED Print Head ........................................................................................ 4 - 7
4.1.3.2
Image Drum and Covers (Rear, NCU, Main) and NCU Board ................ 4 - 8
4.1.3.3
Unit-048 OPE-Panel ............................................................................... 4 - 10
4.1.3.4
Separation Rubber, Sensor Frame Roller Assembly (U) ........................ 4 - 11
4.1.3.5
Roller Assembly-ADF, CIS, Lever-PC1 and PC2 .................................. 4 - 12
4.1.3.6
Board-R44, OKIOFFICE 44 Power Supply Unit ................................... 4 - 14
4.1.3.7
Option (Board-Memory: MEM, Board-CTR; PC Interface) .................. 4 - 16
4.1.3.8
Printer Unit Section ................................................................................ 4 - 17
4.1.3.9
Transfer Roller ........................................................................................ 4 - 18
4.1.3.10 High-Voltage Power Supply Unit (TLHV/OLHV) ................................ 4 - 19
4.1.3.11 Holder Assembly .................................................................................... 4 - 20
4.1.3.12 Plate-Side M and Gear-Idle .................................................................... 4 - 21
4.1.3.13 Registration Roller .................................................................................. 4 - 22
4.1.3.14 Drive Shaft E (Eject) and Eject Roller ................................................... 4 - 23
4.1.3.15 Heat Assembly ........................................................................................ 4 - 24
4.1.3.16 Pressure Roller B (Back Up Roller) ....................................................... 4 - 25
4.1.3.17 Hopping Shaft Assembly ........................................................................ 4 - 26
4.1.3.18 Paper Sensor E, Paper Sensor Exit and Toner Sensor Assembly ........... 4 - 27
4.1.3.19 Printer Unit ............................................................................................. 4 - 28
Section 5: Adjustments ........................................................................... 5 - 1
5.1
Setting of LED Print Head Drive Time ............................................................................... 5 - 1
Settings of Technical Function No. 27 (Table 5.1.1) ........................................................... 5 - 1
5.2
Confirmation Items .............................................................................................................. 5 - 2
Service Caution ................................................................................................................... 5 - 3
5.3
Measurement ....................................................................................................................... 5 - 4
Service Caution ................................................................................................................... 5 - 5
Summary of Contents for OKIOFFICE 44
Page 2: ...All specifications are subject to change without notice Service Manual OKIOFFICE 44 59276801...
Page 135: ...Disassembly 4 6 OKIOFFICE 44 Service Manual P N 59276801 Whole Unit Picture FX048 CP4 1 Fig 01...
Page 329: ...Illustrated Parts List D 6 OKIOFFICE 44 Service Manual P N 59276801 Section 2 Printer Unit...
Page 331: ...Illustrated Parts List D 8 OKIOFFICE 44 Service Manual P N 59276801 Section 3 Operator Panel...
Page 351: ...Illustrated Parts List D 28 OKIOFFICE 44 Service Manual P N 59276801 Section 12 Cables...
Page 357: ...Board Layout E 2 OKIOFFICE 44 Service Manual P N 59276801 MEM eps E 2 MEM PCB...
Page 358: ...Board Layout E 3 OKIOFFICE 44 Service Manual P N 59276801 TEL U eps E 3 TEL U PCB...
Page 359: ...Board Layout E 4 OKIOFFICE 44 Service Manual P N 59276801 Hook eps E 4 Hook PCB...
Page 388: ...OKIOFFICE 44 Service Manual Part Number 59276801 Printed in the USA...