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HP LaserJet 8000 Paper-handling Accessories

Tags : HPLaserJet80008000DN8000NMopier240C4085AC4086AC4087AC4228AC4781AC4782AC4785A 
HP LaserJet 8000 Paper-handling Accessories Manuel de service

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Description

HP LaserJet 8000, 8000 N, 8000 DN and HP Mopier 240 Printers Service Manual Supplement for Paper-handling Accessories
(C4781A, C4782A, C4785A)
Publication number C4085-91023
First edition, March 1998

Contents
Conventions . iii
New Product Features x
1 Theory of Operation
Overview . 1-1
2000-sheet Input Tray Theory of Operation . 1-2
Features 1-2
Pickup and Feed System 1-2
Lifter Operation 1-3
Power Supply . 1-3
Paper Path . 1-4
Sensors, Switches, Clutches, and Motors . 1-5
Switches Functionality . 1-7
Multibin Mailbox Theory of Operation . 1-8
Features 1-8
Operating Modes 1-8
Configuring the Operating Modes . 1-9
Sensors, Switches, Motors, and Controller PCA . 1-10
Receiving Paper 1-12
Delivering Paper 1-12
Paper Path . 1-13
Power-on Sequence 1-14
Communication Link (C-link) Cables . 1-15
Duplexer Theory of Operation 1-16
2 Removal and Replacement
Overview . 2-1
Required Tools 2-2
2000-sheet Input Tray Removal and Replacement 2-3
2000-sheet Input Tray Orientation . 2-3
2000-sheet Input Tray Front Cover 2-4
2000-sheet Input Tray Back Cover 2-5
2000-sheet Input Tray Left Cover . 2-6
2000-sheet Input Tray Right Cover 2-7
2000-sheet Input Tray Main Drive Assembly . 2-8
2000-sheet Input Tray Paper Tray . 2-9
2000-sheet Input Tray Main Cable Harness 2-10
2000-sheet Input Tray Controller PCA 2-11
2000-sheet Input Tray Front LED PCA Assembly 2-12
2000-sheet Input Tray Pickup Assembly . 2-13
2000-sheet Input Tray Power Supply . 2-15
2000-sheet Input Tray Pickup, Feed, and Separation Rollers . 2-16
2000-sheet Input Tray Paper Quantity Switch Assembly 2-18
2000-sheet Input Tray Paper Size Switch Assembly 2-18
2000-sheet Input Tray VTU . 2-20
2000-sheet Input Tray Tension Springs . 2-21
2000-sheet Input Tray Locating Pins 2-22
2000-sheet Input Tray Outriggers (Stabilizing Feet) 2-23
2000-sheet Input Tray Casters 2-24
2000-sheet Input Tray Adjustable Foot . 2-25
Multibin Mailbox Removal and Replacement . 2-26
Multibin Mailbox Orientation 2-26
Multibin Mailbox Front and Back Covers 2-27
Multibin Mailbox Top Cover . 2-28
Multibin Mailbox Power Supply . 2-29
Multibin Mailbox Paper Bins and Blind Cover . 2-30
Multibin Mailbox Flipper Assembly . 2-31
Multibin Mailbox Delivery Head Motor . 2-34
Multibin Mailbox Transport Belt Motor . 2-35
Multibin Mailbox Input Paper Guide 2-36
Multibin Mailbox Metal Tape and Housing Assembly . 2-38
Multibin Mailbox Controller PCA 2-40
Multibin Mailbox Anticurl Strings 2-42
Multibin Mailbox Delivery Head Assembly . 2-44
Multibin Mailbox Interlock Switch . 2-47
Multibin Mailbox Diagnostic LED PCA 2-48
Multibin Mailbox User Status LED PCA 2-50
Multibin Mailbox Adjustable and Fixed Casters 2-52
Multibin Mailbox Attachment Assembly 2-53
3 Troubleshooting
Overview . 3-1
Troubleshooting Approach 3-2
Print the Event Log . 3-2
Display the Event Log . 3-2
Interpret the Event Log . 3-3
Print a Configuration Page . 3-3
C-link Communication Cables . 3-6
Paper Path Test . 3-7
Messages Structure 3-9
Error Messages 3-9
2000-sheet Input Tray Standalone Diagnostics . 3-10
2000-sheet Input Tray Motor Test 3-10
2000-sheet Input Tray Standalone Running Test 3-11
2000-sheet Input Tray Sensor Test 3-11
2000-sheet Input Tray LED Status Interpretation 3-12
Multibin Mailbox Standalone Diagnostics . 3-13
Multibin Mailbox LEDs Description 3-13
Multibin Mailbox Standalone Diagnostic Test 3-14
Power-on Test . 3-14
Multibin Mailbox Paper Path Test . 3-15
Multibin Mailbox LEDs Status Interpretation . 3-15
General Troubleshooting Information 3-19
Wiring Diagrams . 3-19
4 Parts
Overview . 4-1
2000-sheet Input Tray Components . 4-3
Multibin Mailbox Components 4-7
Duplexer . 4-11
List of Figures
Figure 1-1 2000-sheet Input Tray Paper Path 1-4
Figure 1-2 2000-sheet Input Tray Sensors, Switches, Clutches,
and Motors 1-6
Figure 1-3 Multibin Mailbox Sensors, Switches, Motors, and
Controller PCA 1-11
Figure 1-4 Multibin Mailbox Paper Path . 1-13
Figure 1-5 C-link Cables, Supported Daisy-chain Connections . 1-15
Figure 1-6 Duplexer Location 1-16
Figure 2-1 Phillips versus Posidriv Screwdrivers 2-2
Figure 2-2 2000-sheet Input Tray Orientation 2-3
Figure 2-3 2000-sheet Input Tray Front Cover 2-4
Figure 2-4 2000-sheet Input Tray Back Cover 2-5
Figure 2-5 2000-sheet Input Tray Left Cover 2-6
Figure 2-6 2000-sheet Input Tray Right Cover . 2-7
Figure 2-7 2000-sheet Input Tray Main Drive Assembly 2-8
Figure 2-8 2000-sheet Input Tray Paper Tray 2-9
Figure 2-9 2000-sheet Input Tray Main Cable Harness . 2-10
Figure 2-10 2000-sheet Input Tray Controller PCA 2-11
Figure 2-11 2000-sheet Input Tray Front LED PCA . 2-12
Figure 2-12 2000-sheet Input Tray Pickup Assembly . 2-13
Figure 2-13 2000-sheet Input Tray Pickup Assembly
Photosensors . 2-14
Figure 2-14 2000-sheet Input Tray Power Supply . 2-15
Figure 2-15 2000-sheet Input Tray Rollers: Pickup, Feed, and
Separation . 2-17
Figure 2-16 2000-sheet Input Tray Paper Size and Paper
Quantity Switch Assemblies (1 of 2) . 2-19
Figure 2-17 2000-sheet Input Tray Paper Size and Paper
Quantity Switch Assemblies (2 of 2) . 2-19
Figure 2-18 2000-sheet Input Tray Vertical Transfer Unit (VTU) 2-20
Figure 2-19 2000-sheet Input Tray Tension Springs . 2-21
Figure 2-20 2000-sheet Input Tray Locating Pins . 2-22
Figure 2-21 2000-sheet Input Tray Outriggers 2-23
Figure 2-22 2000-sheet Input Tray Casters 2-24
Figure 2-23 2000-sheet Input Tray Adjustable Foot 2-25
Figure 2-24 Multibin Mailbox Orientation 2-26
Figure 2-25 Multibin Mailbox Covers (Front and Back) . 2-27
Figure 2-26 Multibin Mailbox Top Cover . 2-28
Figure 2-27 Multibin Mailbox Power Supply . 2-29
Figure 2-28 Multibin Mailbox Paper Bins and Blind Cover . 2-30
Figure 2-29 Multibin Mailbox Flipper Assembly (1 of 3) 2-32
Figure 2-30 Multibin Mailbox Flipper Assembly (2 of 3) 2-32
Figure 2-31 Multibin Mailbox Flipper Assembly (3 of 3) 2-33
Figure 2-32 Multibin Mailbox Delivery Head Motor . 2-34
Figure 2-33 Multibin Mailbox Transport Belt Motor . 2-35
Figure 2-34 Multibin Mailbox Input Paper Guide (1 of 2) 2-36
Figure 2-35 Multibin Mailbox Input Paper Guide (2 of 2) 2-37
Figure 2-36 Multibin Mailbox Metal Tape and Housing
Assembly (1 of 2) 2-39
Figure 2-37 Multibin Mailbox Metal Tape and Housing
Assembly (2 of 2) 2-39
Figure 2-38 Multibin Mailbox Controller PCA (1 of 2) . 2-40
Figure 2-39 Multibin Mailbox Controller PCA (2 of 2) . 2-41
Figure 2-40 Multibin Mailbox Anticurl Strings (1 of 2) . 2-42
Figure 2-41 Multibin Mailbox Anticurl Strings (2 of 2) . 2-43
Figure 2-42 Multibin Mailbox Delivery Head Assembly
(1 of 4) 2-45
Figure 2-43 Multibin Mailbox Delivery Head Assembly
(2 of 4) 2-45
Figure 2-44 Multibin Mailbox Delivery Head Assembly
(3 of 4) 2-46
Figure 2-45 Multibin Mailbox Delivery Head Assembly
(4 of 4) 2-46
Figure 2-46 Multibin Mailbox Interlock Switch . 2-47
Figure 2-47 Multibin Mailbox Diagnostic LED PCA (1 of 2) 2-48
Figure 2-48 Multibin Mailbox Diagnostic LED PCA (2 of 2) 2-49
Figure 2-49 Multibin Mailbox User Status LED PCA (1 of 2) 2-50
Figure 2-50 Multibin Mailbox User Status LED PCA (2 of 2) 2-51
Figure 2-51 Multibin Mailbox Adjustable and Fixed Casters 2-52
Figure 2-52 Multibin Mailbox Attachment Assembly 2-53
Figure 3-1 Sample Configuration Page . 3-4
Figure 3-2 Sample Menu Page 3-5
Figure 3-3 C-link Cables, Supported Daisy-chain Connections . 3-6
Figure 3-4 Paper Path Test Source and Output Selection 3-8
Figure 3-5 Multibin Mailbox LEDs Description 3-13
Figure 3-6 Multibin Mailbox Power Supply Test Mode Switch 3-14
Figure 3-7 2000-sheet Input Tray Controller PCA Inputs 3-20
Figure 3-8 2000-sheet Input Tray Controller PCA Outputs . 3-21
Figure 3-9 2000-sheet Input Tray Main Wiring Diagram 3-22
Figure 3-10 Multibin Mailbox Main Wiring Diagram 3-23
Figure 4-1 2000-sheet Input Tray (C4781A) Components
(1 of 2) 4-2
Figure 4-2 2000-sheet Input Tray (C4781A) Components
(2 of 2) 4-4
Figure 4-3 Multibin Mailbox (C4785A) Components (1 of 3) . 4-6
Figure 4-4 Multibin Mailbox (C4785A) Components (2 of 3) . 4-8
Figure 4-5 Multibin Mailbox (C4785A) Components (3 of 3) . 4-10
viii



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