Brother DP-525CJ Manuals

Manuals and User Guides for Brother DP-525CJ. We have 3 Brother DP-525CJ manuals available for free PDF download: Service Manual, Owner's Manual, Parts Reference List

Brother DP-525CJ Service Manual

Brother DP-525CJ Service Manual (194 pages)

WORD PROCESSOR  
Brand: Brother | Category: Typewriter | Size: 3.27 MB
Table of contents
Service Manual1................................................................................................................................................................
Table Of Contents3................................................................................................................................................................
Fig. 1.1 Ink Jet Printer Assembly13................................................................................................................................................................
Theory Of Operation13................................................................................................................................................................
Fig. 1.2 General View Of Printing Mechanism15................................................................................................................................................................
Fig. 1.3a Paper Feed Mechanism16................................................................................................................................................................
Fig. 1.3b Paper Feed Mechanism17................................................................................................................................................................
Fig. 1.4 Paper Eject System17................................................................................................................................................................
Fig. 1.5 Paper Setting System18................................................................................................................................................................
Fig. 1.6 Printer Flat Cable To Main Pcb19................................................................................................................................................................
Fig. 1.7 Printer Flat Cable To Cartridge Alignment20................................................................................................................................................................
Fig. 1.8 Ink Jet Cartridge To Flat Cable Alignment21................................................................................................................................................................
Fig. 1.9 Carriage Motion Control22................................................................................................................................................................
Table 1.1 Summary Of Maintenance Operations23................................................................................................................................................................
Fig. 1.10 Print Maintenance Operation - Spitting24................................................................................................................................................................
Fig. 1.11 Print Maintenance Operation - Wiping25................................................................................................................................................................
Fig. 1.12 Print Maintenance Operation - Capping26................................................................................................................................................................
Fig. 1.13 Carriage Home Position Sensor27................................................................................................................................................................
Fig. 1.14 Pe Sensor Mechanism28................................................................................................................................................................
Fig. 1.15 Keyboard Assembly30................................................................................................................................................................
Fig. 1.16 Key Top/key Stem Assembly31................................................................................................................................................................
Fig. 1.17 Lcd Unit Installation In The Upper Cover33................................................................................................................................................................
Fig. 1.18 Lcd Of Dp-525cj/lw-800ic34................................................................................................................................................................
Fig. 1.19 Lcd Of Dp-530cj/lw-810ic And Lw-810icbl35................................................................................................................................................................
Fig. 1.20 Lcd Of Dp-540cj, Dp-550cj/lw-840ic36................................................................................................................................................................
System Configuration37................................................................................................................................................................
Fig. 2.1 Major Electronic Component Parts38................................................................................................................................................................
Power Supply Circuit40................................................................................................................................................................
Configuration40................................................................................................................................................................
Fig. 2.2 Power Supply Circuit40................................................................................................................................................................
V Generator41................................................................................................................................................................
Fig. 2.3 Timing Chart Of +24v Generation Circuit41................................................................................................................................................................
Fig. 2.4 Timing Chart Of +5v Generation Circuit41................................................................................................................................................................
Reset Circuit42................................................................................................................................................................
Fig. 2.5 Reset Circuit42................................................................................................................................................................
Cbic And Peripherals43................................................................................................................................................................
Cbic #943................................................................................................................................................................
Fdc (floppy Disk Controller)43................................................................................................................................................................
Clock Circuit44................................................................................................................................................................
Buzzer Drive Circuit44................................................................................................................................................................
Fig. 2.6 Buzzer Drive Circuit44................................................................................................................................................................
Table 2.1 Clock Circuit44................................................................................................................................................................
Country Specification Change-over45................................................................................................................................................................
Fig. 2.7 Country & Model Specification Change-over Circuit45................................................................................................................................................................
Rs-232c I/f Circuit46................................................................................................................................................................
Fig. 2.8 Rs-232c I/f Circuit46................................................................................................................................................................
Printer Control47................................................................................................................................................................
Ink Jet Head Control47................................................................................................................................................................
Fig. 2.9 Ink Jet Head Drive Circuit47................................................................................................................................................................
Carriage Motor Control48................................................................................................................................................................
Fig. 2.10 Carriage Motor Drive Circuit48................................................................................................................................................................
Line Feed Motor Control49................................................................................................................................................................
Fig. 2.11 Line Feed Motor Drive Circuit49................................................................................................................................................................
Carriage Home Position Sensor50................................................................................................................................................................
Pe Sensor50................................................................................................................................................................
Fig. 2.12 Carriage Home Position Sensor Circuit50................................................................................................................................................................
Fig. 2.13 Pe Sensor Detection Circuit50................................................................................................................................................................
Switch Pcb51................................................................................................................................................................
Fig. 2.14 External View Of The Switch Pcb51................................................................................................................................................................
Fig. 2.15 Switch Pcb Circuit51................................................................................................................................................................
Keyboard System52................................................................................................................................................................
Fpc Operation52................................................................................................................................................................
Fig. 2.16 Key/fpc Operation52................................................................................................................................................................
Keyboard Scan53................................................................................................................................................................
Fig. 2.17 Electrode Wiring53................................................................................................................................................................
Keyboard Control Circuit54................................................................................................................................................................
Fig. 2.18 Keyboard Control Circuit54................................................................................................................................................................
Fig. 2.19 Keyboard Matrix55................................................................................................................................................................
Fig. 2.20 Keyboard Symbols (corresponding To Keyboard Matrix In Fig. 2.19)55................................................................................................................................................................
Fig. 2.21 Lcd Display Operation Block Diagram56................................................................................................................................................................
Fig. 2.22 Example Of Control Signal Timing Chart57................................................................................................................................................................
Table 2.2 Table Of Lcd Modules57................................................................................................................................................................
Fig. 2.23 Lcd Drive Voltage Generation Circuit (minus Voltage Vee)58................................................................................................................................................................
Fig. 2.24 Lcd Drive Voltage Generation Circuit (plus Voltage Vee)58................................................................................................................................................................
Fig. 2.25 Cfl Backlight Circuit59................................................................................................................................................................
Fdd (floppy Disk Drive) Control60................................................................................................................................................................
Fdd Configuration60................................................................................................................................................................
Table 2.3 Fdc(#5) And Fdd Module Links (interface Signals)60................................................................................................................................................................
Fdd Operation61................................................................................................................................................................
Basic Operation61................................................................................................................................................................
Interface Between Cbic (#8) And Fdc (#5)61................................................................................................................................................................
Fig. 2.26 Fdd Block Diagram61................................................................................................................................................................
Fdd Module62................................................................................................................................................................
Read/write Circuit62................................................................................................................................................................
Motor Drive Circuit62................................................................................................................................................................
Sensor Circuits62................................................................................................................................................................
Introduction64................................................................................................................................................................
Precautions64................................................................................................................................................................
Personal Safety64................................................................................................................................................................
Handling Esd-sensitive Parts64................................................................................................................................................................
Chapter 3 Troubleshooting64................................................................................................................................................................
Checks Before Repair65................................................................................................................................................................
Checks After Repair66................................................................................................................................................................
Troubleshooting Flow Charts67................................................................................................................................................................
Fig. 3.1 Troubleshooting Flowchart67................................................................................................................................................................
Fig. 3.2 Troubleshooting Flowchart (continued)68................................................................................................................................................................
Failure Analysis69................................................................................................................................................................
Table 3.1 Failure Analysis69................................................................................................................................................................
Troubleshooting Tables70................................................................................................................................................................
Self-tests72................................................................................................................................................................
Serial Number Input Display77................................................................................................................................................................
Fig. 3.3 Serial Number Entry Display77................................................................................................................................................................
Self Print Mode78................................................................................................................................................................
Fig. 3.4 Self-print Pattern78................................................................................................................................................................
Fig. 3.5 Results Of Self-print Test80................................................................................................................................................................
Self-test Mode81................................................................................................................................................................
Fig. 3.6 Self-test Menu81................................................................................................................................................................
Fig. 3.7 Lcd Test Menu83................................................................................................................................................................
Test Pattern83................................................................................................................................................................
Fig. 3.8 Check Test Display (magnified)84................................................................................................................................................................
Fig. 3.9 Cross Test Display (magnified)85................................................................................................................................................................
Fig. 3.10 Black Test Display86................................................................................................................................................................
Fig. 3.11 Disp Q Test Display (magnified)87................................................................................................................................................................
Fig. 3.12 Slant Line Test Display (magnified)88................................................................................................................................................................
Print Checks89................................................................................................................................................................
Print Test Pattern 189................................................................................................................................................................
Fig. 3.13 Printer Check #1 (in Progress) Display89................................................................................................................................................................
Fig. 3.14 Diagram Of Print Test Pattern 190................................................................................................................................................................
Fig. 3.15 Sample Print Test Pattern 191................................................................................................................................................................
Print Test Pattern 292................................................................................................................................................................
Fig. 3.16 Printer Check #2 (in Progress) Display92................................................................................................................................................................
Fig. 3.17 Sample Test Pattern 293................................................................................................................................................................
Dot Patterns94................................................................................................................................................................
Fig. 3.18 Dot Patterns For Print Test #2 (patterns 1 To 4)94................................................................................................................................................................
Fig. 3.19 Dot Patterns For Print Test #2 (patterns 5 And 6)95................................................................................................................................................................
Keyboard Tests96................................................................................................................................................................
Fig. 3.20 Keyboard Test #1 Display96................................................................................................................................................................
Fig. 3.21 Keyboard Test Key Locations96................................................................................................................................................................
Fdd Tests99................................................................................................................................................................
Fdd Test99................................................................................................................................................................
Fig. 3.22 Fdd Test (in Progress) Display99................................................................................................................................................................
Special Fdd Test100................................................................................................................................................................
Fig. 3.23 Special Fdd Test Display 1100................................................................................................................................................................
Fig. 3.24 Special Fdd Test Display 2101................................................................................................................................................................
Fig. 3.25 Special Fdd Test (in Progress) Display101................................................................................................................................................................
Table 3.2 Fdd Special Test Error Stage Codes102................................................................................................................................................................
Table 3.3 Fdd Special Test Error Codes103................................................................................................................................................................
Fdd Sw Test104................................................................................................................................................................
Fig. 3.26 Special Fdd Test Display 1104................................................................................................................................................................
Fdd Write Error Rate Check105................................................................................................................................................................
Fig. 3.27 Fdd Write Error Rate Check Display105................................................................................................................................................................
Fdd Read Error Rate Check107................................................................................................................................................................
Fig. 3.28 Fdd Read Error Rate Check Display107................................................................................................................................................................
Pe (paper-end) Sensor Test109................................................................................................................................................................
Fig. 3.29 Pe Sensor Test Start Display 1109................................................................................................................................................................
Fig. 3.30 Pe Sensor Test Start Display 2109................................................................................................................................................................
Cr (carriage Reset) Test110................................................................................................................................................................
Fig. 3.31 Cr Test Start Display 1110................................................................................................................................................................
Disk Type111................................................................................................................................................................
Fig. 3.32 Self-test Menu (disk Type Setting)111................................................................................................................................................................
Fig. 3.33 Rs232c Echo-back Test Start Display112................................................................................................................................................................
Chapter 4 Component Disassembly116................................................................................................................................................................
Covers116................................................................................................................................................................
Fig. 4.1 Cover Assemblies116................................................................................................................................................................
Upper Cover117................................................................................................................................................................
Removing The Upper Cover117................................................................................................................................................................
Fig. 4.2 Removing The Sub Paper Support And Paper Support118................................................................................................................................................................
Fig. 4.3 Removing The Top Cover119................................................................................................................................................................
Fig. 4.4 Removing The Upper Cover120................................................................................................................................................................
Installing The Upper Cover122................................................................................................................................................................
Fig. 4.5 Removing The Core123................................................................................................................................................................
Fig. 4.6 Removing The Lcd Unit124................................................................................................................................................................
Fig. 4.7 Removing The Lcd Lower Cover125................................................................................................................................................................
Fig. 4.8 Removing The Lcd Pcb (1)127................................................................................................................................................................
Fig. 4.9 Removing The Lcd Pcb (2)128................................................................................................................................................................
Fig. 4.10 Removing The Lcd Pcb (3)129................................................................................................................................................................
Fig. 4.11 Removing The Lcd Pcb (4)130................................................................................................................................................................
Fig. 4.12 Removing The Lcd Pcb (5)131................................................................................................................................................................
Fig. 4.13 Removing Lcd Latch And Lcd Plate132................................................................................................................................................................
Fig. 4.14 Installing Lcd Latch134................................................................................................................................................................
Fig. 4.15 Fitting Lcd Volume Guide To Lcd Volume Knob136................................................................................................................................................................
Fig. 4.16 Installing The Lcd Lower Cover137................................................................................................................................................................
Fig. 4.17 Fitting The Core138................................................................................................................................................................
Fig. 4.18 Installing The Hinge Assy139................................................................................................................................................................
Removing The Keyboard140................................................................................................................................................................
Keyboard Assembly140................................................................................................................................................................
Fig. 4.19 Removing The Keyboard Assembly140................................................................................................................................................................
Installing The Keyboard141................................................................................................................................................................
Fig. 4.20 Installing The Keyboard141................................................................................................................................................................
Fig. 4.21 Removing The Carrying Handle142................................................................................................................................................................
Ink Jet Printer Assembly143................................................................................................................................................................
Fig. 4.22 Ink Jet Printer Assembly143................................................................................................................................................................
Removing The Printer Assembly144................................................................................................................................................................
Installing The Printer Assembly144................................................................................................................................................................
Disassembling The Printer Assembly145................................................................................................................................................................
Fig. 4.23 Disassembling The Printer Assembly145................................................................................................................................................................
Removing The Ca Unit146................................................................................................................................................................
Installing The Ca Unit146................................................................................................................................................................
Disassembling The Pf Unit147................................................................................................................................................................
Fig. 4.24 Construction Of The Pf Unit147................................................................................................................................................................
Removing The Form148................................................................................................................................................................
Fig. 4.25 Removing The Form148................................................................................................................................................................
Removing The Release Lever And Release Shaft149................................................................................................................................................................
Fig. 4.26 Removing The Release Lever And Release Shaft From The Pf Base Assembly149................................................................................................................................................................
Removing The Acf Shaft Assembly150................................................................................................................................................................
Fig. 4.27 Removing The Acf Shaft Assembly150................................................................................................................................................................
Removing The Pressure Rollers And Roller Holders151................................................................................................................................................................
Fig. 4.28 Removing The Pressure Rollers And Roller Holders151................................................................................................................................................................
Removing The Holder Plate152................................................................................................................................................................
Fig. 4.29 Removing The Holder Plate152................................................................................................................................................................
Removing The Hopper Assembly153................................................................................................................................................................
Fig. 4.30 Removing The Hopper Assembly154................................................................................................................................................................
Disassembling The Paper Feed Assembly155................................................................................................................................................................
Fig. 4.31 Disassembling The Paper Feed Assembly155................................................................................................................................................................
Removing The Eject Roller Assembly And The Pf Roller Assembly156................................................................................................................................................................
Fig. 4.32 Removing The Eject Roller Assembly And The Pf Roller Assembly156................................................................................................................................................................
Removing The Motor Frame Assembly157................................................................................................................................................................
Fig. 4.33 Removing The Motor Frame Assembly157................................................................................................................................................................
Removing The Pf Stopper158................................................................................................................................................................
Fig. 4.34 Removing The Pf Stopper158................................................................................................................................................................
Removing The Pe Sensor159................................................................................................................................................................
Fig. 4.35 Removing The Pe Sensor159................................................................................................................................................................
Disassembling The Ca Unit160................................................................................................................................................................
Fig. 4.36 Construction Of The Ca Unit160................................................................................................................................................................
Removing The Carriage161................................................................................................................................................................
Fig. 4.37 Printer Mechanism161................................................................................................................................................................
Fig. 4.38 Removing The Carriage162................................................................................................................................................................
Removing The Carriage Drive163................................................................................................................................................................
Fig. 4.39 Removing The Carriage Drive163................................................................................................................................................................
Removing The Star Wheel Holder Assembly164................................................................................................................................................................
Fig. 4.40 Removing The Star Wheel Holder Assembly164................................................................................................................................................................
Removing The Ms Holder Assembly165................................................................................................................................................................
Fig. 4.41 Removing The Ms Holder Assembly165................................................................................................................................................................
Removing The Leaf Switch (home Position Sensor)166................................................................................................................................................................
Fig. 4.42 Removing The Leaf Switch (home Position Sensor)166................................................................................................................................................................
Removing And Mounting The Kb Switch Assy167................................................................................................................................................................
Fig. 4.43 Removing And Mounting The Kb Switch Assy167................................................................................................................................................................
Adjusting The Ca Unit168................................................................................................................................................................
Adjusting The Carriage Home Position168................................................................................................................................................................
Adjustments168................................................................................................................................................................
Adjusting Belt Tension169................................................................................................................................................................
Fig. 4.44 Adjusting The Belt Tension170................................................................................................................................................................
Fig. 4.45 Measuring Friction During Carriage Movement171................................................................................................................................................................
Removing The Fdd Assembly172................................................................................................................................................................
Fig. 4.46 Removing The Fdd Assembly172................................................................................................................................................................
Fig. 4.47 Switch Pcb173................................................................................................................................................................
Removing The Switch Pcb174................................................................................................................................................................
Installing The Switch Pcb174................................................................................................................................................................
Fig. 4.48 Switch Pcb174................................................................................................................................................................
Removing The Main Pcb175................................................................................................................................................................
Fig. 4.49 Removing The Main Pcb175................................................................................................................................................................
Removing The Shield Plate (esd)176................................................................................................................................................................
Fig. 4.50 Removing The Shield Plate (esd)176................................................................................................................................................................
Lubrication177................................................................................................................................................................
Lubricants177................................................................................................................................................................
Lubrication Points177................................................................................................................................................................
Fig. 5.1 Carriage Assembly Lubrication Points178................................................................................................................................................................
Fig. 5.2 Paper Feed Assembly Lubrication Points179................................................................................................................................................................
Fig. 5.3 Eject Roller Assembly And Pf Roller Assembly Lubrication Points180................................................................................................................................................................
Replacing The Ink Cartridge181................................................................................................................................................................
Fig. 5.4 Open The Paper Support And Top Cover And Tilting The Lcd To The Uprige Position182................................................................................................................................................................
Fig. 5.5 Removing The Ink Jet Cartridge183................................................................................................................................................................
Fig. 5.6 Removing The Protection Tape183................................................................................................................................................................
Fig. 5.7 Placing The Cartridge In The Carriage184................................................................................................................................................................
Fig. 5.8 Fitting The Cartridge In The Carriage185................................................................................................................................................................
Cleaning The Print Head186................................................................................................................................................................
Cleaning The Print Head Automatically186................................................................................................................................................................
Cleaning The Ink Jet Nozzles And Contacts186................................................................................................................................................................
Fig. 5.9 Cleaning The Bracket Contacts187................................................................................................................................................................
Cleaning The Bracket Contacts (carriage)187................................................................................................................................................................
Electrical System188................................................................................................................................................................
Appendix A Specifications188................................................................................................................................................................
Printing189................................................................................................................................................................
Keyboard191................................................................................................................................................................
Environmental Tolerance192................................................................................................................................................................
Dimensions & Weight193................................................................................................................................................................

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Brother DP-525CJ Owner's Manual

Brother DP-525CJ Owner's Manual (132 pages)

Desktop Pulisher  
Brand: Brother | Category: Typewriter | Size: 7.92 MB
Brother DP-525CJ Parts Reference List

Brother DP-525CJ Parts Reference List (39 pages)

Brand: Brother | Category: Typewriter | Size: 1.46 MB
Table of contents
Table Of Contents3................................................................................................................................................................
Print Head Assembly4................................................................................................................................................................
Chassis Attachments6................................................................................................................................................................
Covers10................................................................................................................................................................
Detector Switch12................................................................................................................................................................
Ac Adapter14................................................................................................................................................................
Main Pcb16................................................................................................................................................................
Power Supply Pcb20................................................................................................................................................................
Floppy Disk Drive24................................................................................................................................................................
Printed Matters28................................................................................................................................................................
Packing Materials30................................................................................................................................................................
Keyboard Unit/usa33................................................................................................................................................................
Keyboard Unit/german34................................................................................................................................................................
Keyboard Unit/uk35................................................................................................................................................................
Keyboard Unit/canada36................................................................................................................................................................
Keyboard Unit/french37................................................................................................................................................................
Keyboard Unit/holland38................................................................................................................................................................

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