Page 1 ® D O C U P R I N T N 4 5 2 5 N E T W O R K L A S E R P R I N T E R Ser vice Quick Refe rence Gu ide B ook I I —...
Page 2 Copyright 2001 Xerox Corporation. Printed in the United States of America. All rights reserved. Contents of this publication may not be reproduced in any form without permission of Xerox, Inc. Xerox, and all product names and product numbers mentioned in this publication are trademarks.
Page 3 Users safety summary Terms in manual: Various terms are used throughout this manual to either provide additional information on a specific topic or to warn of possible danger that might be present during a procedure or action. Be aware of all symbols and NOTE , CAUTION and WARNING terms when they are used, and always read messages.
Page 4 Power Supply and Electrical Components: Before starting any service procedure, switch off the printer power and unplug the power cord from the wall outlet. If you must service the printer with power applied, be aware of the potential for electrical shock. Do not touch any electrical component unless you are instructed to do so by a service procedure.
Page 5 Fuser Components WARNING: This printer uses heat to fuse the toner image to a sheet of paper. The Fuser Assembly is very hot. Switch off printer power and wait at least 30 minutes for the Fuser to cool before you attempt to service the Fuser Assembly or adjacent components.
Page 6 Service Safety Summary For qualified service personnel only: Refer also to the preceding Users Safety Summary. Do not service alone: Do not perform internal service or adjustment of this product unless another person capable of rendering first aid or resuscitation is present.
Page 7 where possible exposure to the laser beam exists. LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT...
Page 8 Federal Communications Commission Compliance This equipment has been tested and found to comply with the limits set for a Class B digital device, as stated in Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a commercial installation.
Page 9 Canadian Notice This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as described in the radio interference regulations of the Canadian Department of Communications. NOTE: Installation of the Finisher and/or the Token Ring Interface results in a classification change to Class A.
Page 10 Manual Organization This Service Quick Reference Guide (QRG) is divided into two volumes. Book I Book I of the QRG contains technical information for the N4525 Print Engine (Volume 1), as well as complete Error Code and Repair Analysis Procedures (RAPs) for the Print Engine and all options for the printer.
Page 11 Section 3 - Troubleshooting This section specifically discusses the most common problems (using additional Repair Analysis Procedures) encountered in the following areas: Printer Performance Problems Image Quality Problems Electrical Interference Problems. Section 4 - Diagnostics, Test Prints, Service Tests & NVRAM Adjustments This section provides a wide variety of test prints to assist in evaluating and/or troubleshooting the printer and options.
Page 12 Book II Book II contains technical information for all options for the N4525 Network Laser Printer. Information for each option is contained in a separate volume as see below. Volume 2 - High Capacity Feeder (HCF) This section contains information specific to the HCF with General Information, Error Codes, RAPs, RRPs, Parts Lists, Plug/Jack Locators and wiring information.
Page 13: Table Of Contents
Table of Contents Table of Contents ......................0 - i List of Figures .........................0 - v List of Tables ........................ 1 - xi High Capacity Feeder High Capacity Feeder Overview ................. 2 - 360 General Information ....................2 - 361 The High Capacity Feeder Paper Path..............
Page 14 Locating Plug/Jack Connectors Map ..............4 - 609 Plug/Jack Location Table ..................4 - 610 Plug/Jack Location Map 1..................4 - 611 Face-Up Bin ................5 - 615 General Information ....................5 - 616 Removal and Replacement Procedures (RRPs)..... 5 - 617 DocuPrint N4525 Network Laser Printer...
Page 15 Finisher Finisher Overview ....................2 - 624 General Information ....................2 - 625 The Finisher Paper Path..................2 - 626 Finisher Paper Path ....................2 - 626 Horizontal Transport (H-Tra) Section............2 - 627 Punch Section ....................2 - 629 Shift Section.....................
Page 16 Blank Page DocuPrint N4525 Network Laser Printer...
Page 17: List Of Figures
List of Figures Fig 2-1 DocuPrint N4525 Network Laser Printer with the High Capacity Feeder Highlighted..........2 - 359 Fig 2-2 Feed From Tray 3 .
Page 18 Fig 3-25 PL 14.4 Duplex Paper Transport ....... . 3 - 548 DocuPrint N4525 Network Laser Printer...
Page 19 Fig 4-23 Plug/Jack Location Map ........4 - 611 Fig 5-1 The DocuPrint N4525 Network Laser Printer Face-Up Bin... . 5 - 615 Fig 5-2 The DocuPrint N4525 Network Laser Printer Face-Up Bin with the Duplex Unit highlighted .
Page 20 Fig 6-30 Puncher Assembly ......... . . 6 - 750 Fig 6-31 Puncher Position Adjustment Dimensions......6 - 751 viii DocuPrint N4525 Network Laser Printer...
Page 21 Fig 6-32 Pinch Roller Pinch ..........6 - 753 Fig 6-33 Finisher Exit Path Sensor .
Page 22 Fig 6-5 P/J Map 5........... . 6 - 855 DocuPrint N4525 Network Laser Printer...
Page 23 List of Tables Table 2-2 Specifications ..........2 - 361 Table 2-3 High Capacity Feeder Error Code Table .
Page 24 Table 6-25 Error Code F8-1 ......... . . 6 - 694 DocuPrint N4525 Network Laser Printer...
Page 25 Table 6-26 Error Code H5-11 ......... .6 - 696 Table 6-27 Error Code H5-21 .
Page 26 Blank Page DocuPrint N4525 Network Laser Printer...
Page 27: High Capacity Feeder
High Capacity Feeder S4525-190 Fig 2-1 DocuPrint N4525 Network Laser Printer with the High Capacity Feeder Option Highlighted. Volume 2 / High Capacity Feeder - Specifications 2-359...
Page 28: High Capacity Feeder Overview
This Service Quick Reference Guide contains information useful in verifying the operation, troubleshooting, repair and maintenance of the High Capacity Feeder Option for the DocuPrint N4525 Network laser printer. This Guide contains detailed Repair Analysis Procedures (RAPs) for error codes and messages, a Field Replacement Unit Parts List (PL) and Removal and Replacement Procedures (RRPs).
Page 29: General Information
General Information Table 2-2 Specifications Category Specification Configuration Customer installed option. The print engine sits on top of the High Capacity Feeder. The High Capacity Feeder has three paper trays: Tray 3 - upper tray. Tray 4 - lower left tray. Tray 5 - lower right tray S4525-190 Paper feed...
Page 30: The High Capacity Feeder Paper Path
Registration Roller. After that, the sheet continues along the printer paper path until the sheet of paper, complete with fused image, is delivered to an output bin. S4525-192 Fig 2-2 Feed From Tray 3 2-362 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 31 Tray 3 Paper Path Components The High Capacity Feeder Tray 3 Paper Path is made up of a number of transport rollers and paper sensors. Tray 3 Assembly Holds plain paper of various sizes. Slides into the top feeder, Feeder 3, of the High Capacity Feeder.
Page 32 1 Take Away Roller drives the sheet of paper to the Registration Roller. After that, the sheet continues along the printer paper path until the sheet of paper, complete with fused image, is delivered to an output bin. S4525-193 Fig 2-3 Feed From Tray 4 2-364 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 33 Tray 4 Paper Path Components The High Capacity Feeder Tray 4 Paper Path is made up of a number of transport rollers and paper sensors. Tray 4 Assembly Holds plain paper of various sizes. Slides into the bottom left feeder, Feeder 4, of the High Capacity Feeder.
Page 34 Fig 2-4 Feed From Tray 5 Tray 5 Paper Path Components The High Capacity Feeder Tray 5 Paper Path is made up of a number of transport rollers and paper sensors. 2-366 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 35 Tray 5 Assembly Holds plain paper of various sizes. Slides into the bottom right feeder, Feeder 5, of the High Capacity Feeder. Tray 5 Lift Motor Raises the tray bottom plate so the paper contacts the Feed Roller. Tray 5 No Paper Sensor Notifies the Print Engine Controller Board when there is no paper present in Tray 5.
Page 36 Blank Page 2-368 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 37: Error Codes And Messages
Error Codes and Messages Error messages The front panel displays error codes when it encounters certain system failures or anomalies otherwise undetected by the user. These error codes are discussed in this section. When an error code first occurs, cycle power on the printer to see if the error re-occurs.
Page 38: High Capacity Feeder Error Code Table
Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 4, the Tray 2 Take Away Sensor did not actuate within the specified time after the Tray 3 Take Away Sensor was actuated. 2-370 DocuPrint N4525 Network Printer - Service Guide...
Page 39 Table 2-3 High Capacity Feeder Error Code Table Displayed Error Error Description Go to Unit/ Error Code Page Message Paper Jam C4-3 There is a paper jam between Paper Tray 4 and 2-381 Clear Area A, the Registration Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 4, the Registration Sensor did not actuate within then specified time after the Tray 2 Take Away Sensor was...
Page 40 Feeder or a problem with NVM on the HCF. H7-7 NVM on the High capacity feeder control Board cannot execute a READ/WRITE, is non-functional, or there is a communication error between the HCF and the Print Engine Controller Board. 2-372 DocuPrint N4525 Network Printer - Service Guide...
Page 41: Table 2-4 Error Code C3-2 Paper Jam Clear Areas A,B
RAP 2-1 Error Code C3-2 Paper Jam Clear Areas A,B There is a paper jam between Tray 3 and Tray 2 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that the Tray 2 Take Away Sensor did not actuate within the specified time after the Tray 3 Feed Clutch was actuated. Table 2-4 Error Code C3-2 Paper Jam Clear Areas A,B Step Actions and Questions...
Page 42 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-374 DocuPrint N4525 Network Printer - Service Guide...
Page 43: Table 2-5 Error Code 3-3 Paper Jam Clear Area A
RAP 2-2 Error Code C3-3 Paper Jam Clear Area A There is a paper jam between Paper Tray 3 and the Registration Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 3, the Registration Sensor did not actuate within the specified time after the Tray 2 Take Away Sensor actuated.
Page 44 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-376 DocuPrint N4525 Network Printer - Service Guide...
Page 45: Table 2-6 Error Code C4-1 Paper Jam Clear Areas B,C
RAP 2-3 Error Code C4-1 Paper Jam Clear Areas B,C There is a paper jam between Paper Tray 4 and the Tray 3 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 4, the Tray 3 Take Away Sensor did not actuate within the specified time after the Tray 4 Feed Clutch was actuated.
Page 46: Fig 2-14 High Capacity Feeder Board
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-378 DocuPrint N4525 Network Printer - Service Guide...
Page 47: Table 2-7 Error Code C4-2 Paper Jam Clear Areas A,B
RAP 2-4 Error Code C4-2 Paper Jam Clear Areas A,B There is a paper jam between Tray 2 Take Away Sensor and Tray 3 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 4, the Tray 2 Take Away Sensor did not actuate within the specified time after the Tray 3 Take Away Sensor was actuated.
Page 48 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-380 DocuPrint N4525 Network Printer - Service Guide...
Page 49: Table 2-8 Error Code C4-3 Paper Jam Clear Area A
RAP 2-5 Error Code C4-3 Paper Jam Clear Area A There is a paper jam between Paper Tray 4 and the Registration Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 4, the Registration Sensor did not actuate within then specified time after the Tray 2 Take Away Sensor was actuated.
Page 50 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-382 DocuPrint N4525 Network Printer - Service Guide...
Page 51 RAP 2-6 Error Code C5-0 Clear Area C Reset Tray 5 There is a paper jam between Paper Tray 5 and the Tray 4 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 5, the Tray 4 Take Away Sensor did not actuate within the specified time after the Tray 5 Feed Clutch was actuated.
Page 52: Fig 2-29 Tray 4
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-384 DocuPrint N4525 Network Printer - Service Guide...
Page 53: Table 2-10 Error Code C5-1 Paper Jam Clear Areas B,C
RAP 2-7 Error Code C5-1 Paper Jam Clear Areas B,C There is a paper jam between Paper Tray 5 and the Tray 3 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 5, the Tray 3 Take Away Sensor did not actuate within the specified time after the Tray 4 Take Away Sensor was actuated.
Page 54 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-386 DocuPrint N4525 Network Printer - Service Guide...
Page 55: Table 2-11 Error Code C5-2 Paper Jam Clear Areas A,B
RAP 2-8 Error Code C5-2 Paper Jam Clear Areas A,B There is a paper jam between Tray 2 Take Away Sensor and Tray 3 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 5, the Tray 2 Take Away Sensor signal did not actuate within the specified time after the Tray 3 Take Away Sensor was actuated.
Page 56 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-388 DocuPrint N4525 Network Printer - Service Guide...
Page 57: Table 2-12 Error Code C5-3 Paper Jam Clear Area A
RAP 2-9 Error Code C5-3 Paper Jam Clear Area A There is a paper jam between Paper Tray 5 and the Registration Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 5, the Registration Sensor did not actuate within then specified time after the Tray 2 Take Away Sensor was actuated.
Page 58 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-390 DocuPrint N4525 Network Printer - Service Guide...
Page 59: Table 2-13 Error Code C8-3 Paper Jam Clear Areas B,C
RAP 2-10 Error Code C8-3 Paper Jam Clear Areas B,C There is a problem with the Tray 3 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed the Tray 3 Take Away Sensor was on while the printer was in standby. Table 2-13 Error Code C8-3 Paper Jam Clear Areas B,C Step Actions and Questions...
Page 60: Fig 2-23 Tray 4 Take Away Sensor
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-392 DocuPrint N4525 Network Printer - Service Guide...
Page 61: Table 2-15 Error Code E6-1 Close Door C
RAP 2-12 Error Code E6-1 Close Door C Door C is sensed to be open. Table 2-15 Error Code E6-1 Close Door C Step Actions and Questions LEFT DOOR C CHECK Go to step 2 Problem solved Open and close Left Door C. Does the error code appear when the door is closed? LEFT DOOR C INTERLOCK SWITCH...
Page 62 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-394 DocuPrint N4525 Network Printer - Service Guide...
Page 63: Fig 6-10 Sensors
RAP 2-13 Error Code H1-3 Insert Tray 3 There is a problem with Tray 3. Tray 3 is sensed to be out of printer or Lift Motor non-functional. Table 2-16 Error Code H1-3 Insert Tray 3 Step Actions and Questions TRAY 3 LIFT MOTOR TEST Go to step 2 Replace...
Page 64 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-396 DocuPrint N4525 Network Printer - Service Guide...
Page 65 RAP 2-14 Error Code H1-4 Insert Tray 4 There is a problem with Tray 4. Tray 4 is sensed to be out of printer or Lift Motor in non-functional. Table 2-17 Error Code H1-4 Insert Tray 4 Step Actions and Questions TRAY 4 LIFT MOTOR TEST Go to step 2 Replace...
Page 66: Table 2-17 Error Code H1-4 Insert Tray 4
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-398 DocuPrint N4525 Network Printer - Service Guide...
Page 67 RAP 2-15 Error Code H1-5 Insert Tray 5 There is a problem with Tray 5. Tray 5 is sensed to be out of paper or the Lift Motor is non-functional. Table 2-18 Error Code H1-5 Insert Tray 5 Step Actions and Questions TRAY 5 LIFT MOTOR TEST Go to step 2 Replace...
Page 68: Table 2-18 Error Code H1-5 Insert Tray 5
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-400 DocuPrint N4525 Network Printer - Service Guide...
Page 69 RAP 2-16 Error Code H4-3 Load Tray 3 There is a problem with paper fed from Tray 3. Tray 3 out of paper or size/type is incorrect for print job. Table 2-19 Error Code H4-3 Load Tray 3 Step Actions and Questions TRAY 3 LIFT MOTOR TEST Go to step 2 Replace...
Page 70: Table 2-19 Error Code H4-3 Load Tray 3
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-402 DocuPrint N4525 Network Printer - Service Guide...
Page 71 RAP 2-17 Error Code H4-4 Load Tray 4 There is a problem with paper fed from Tray 4. Tray 4 is out of paper or size/type is incorrect for print job. Table 2-20 Error Code H4-4 Load Tray 4 Step Actions and Questions TRAY 4 LIFT MOTOR TEST Go to step 2...
Page 72 Does the error code appear? PRINT ENGINE CONTROLLER BOARD Go to step 6 Problem REPLACEMENT solved Replace the Print Engine Controller Board [RRP 1-72 Print Engine Controller Board (PL 11.3)]. Does the error code appear? 2-404 DocuPrint N4525 Network Printer - Service Guide...
Page 73 Table 2-21 Error Code H4-5 Load Tray 5 Step Actions and Questions The following printer components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely. If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem.
Page 74: Table 2-22 Error Code U6-3 Hcf Nvm Fail Power Off/On
Replace the Print Engine Controller Board [RRP 1-72 Print Engine Controller Board (PL 11.3)]. Does the error code appear? INTERFACE CABLE Call for Problem Technical solved Replace the interface cable. Support Does the error code appear? 2-406 DocuPrint N4525 Network Printer - Service Guide...
Page 75 RAP 2-20 Error Code C4-0 Clear Area C Reset Tray 4 There is a paper jam between Paper Tray 4 and the Tray 3 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that when paper was fed from Tray 4, the Tray 3 Take Away Sensor did not actuate within the specified time after the Tray 4 Feed Clutch was actuated.
Page 76: Table 2-23 Error Code C4-0 Clear Area C Reset Tray 4
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-408 DocuPrint N4525 Network Printer - Service Guide...
Page 77 RAP 2-21 Error Code C5-4 Clear Area C Reset Tray 5 Paper fed from Tray 5 did not reach the Take-Away Roller 5 Sensor within the specified time. Table 2-24 Error Code C5-4 Clear Area C Reset Tray 5 Step Actions and Questions PAPER INSPECTION Replace the...
Page 78: Fig 2-30 Tray 5 Take Away Sensor
If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-410 DocuPrint N4525 Network Printer - Service Guide...
Page 79 RAP 2-22 Error Code C8-5 Clear Area C Reset Tray 5 Remaining paper detected by the Take-Away Roller 5 Sensor. Table 2-25 Error Code C8-5 Clear Area C Reset Tray 5 Step Actions and Questions TRAY 5 TAKE AWAY SENSOR INSPECTION Go to step 2 Remove the paper scraps...
Page 80 Blank Page 2-412 DocuPrint N4525 Network Printer - Service Guide...
Page 81: Troubleshooting
Troubleshooting RAP 2-90 High Capacity Feeder Performance Problems Inoperative High Capacity Feeder When you switch on the printer the Lift Motors do not raise the High Capacity Feeder trays into place, none of the High Capacity Feeder feeders respond to feed commands from the printer, and the problem is not identified by a displayed Error Code.
Page 82 If you cannot isolate this problem using the steps in this FIP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 2-414 DocuPrint N4525 Network Printer - Service Guide...
Page 83: Fru Removal And Replacement Procedures (Rrps)
Key FRU Removal and Replacement Procedures (RRPs) This section contains the removal and replacement procedures for select parts of the High Capacity Feeder. Preparation Before you begin any Removal and Replacement Procedure: Switch OFF the printer power and disconnect the power cord from the AC wall outlet.
Page 84 Removal Procedure. Replacement Procedures are only present when the replacement or installation of an assembly requires special attention or is so convoluted, that a procedure to install is felt to be necessary. 2-416 DocuPrint N4525 Network Printer - Service Guide...
Page 85 Contents - Removal and Replacement Procedures RRP 2-1 High Capacity Feeder (PL 12.1) 2-418 RRP 2-2 High Capacity Feeder Rear Cover (PL 12.1) 2-420 RRP 2-3 High Capacity Feeder Left Cover (PL 12.1) 2-421 RRP 2-4 Door C Assembly (PL 12.11) 2-422 RRP 2-5 Right Cover (PL 12.1) 2-423...
Page 86: Rrp 2-1 High Capacity Feeder (Pl 12.1)
RRP 2-1 High Capacity Feeder Tray 2 High Capacity Feeder Right Docking Bracket Left Docking Bracket S4525-195 Fig 2-6 High Capacity Feeder 2-418 DocuPrint N4525 Network Printer - Service Guide...
Page 87 Removal Lock the two front High Capacity Feeder casters. Disconnect the High Capacity Feeder interface cable from P613 located at the rear of the base printer. Remove Tray 2 from the base printer. Open Tray 3 and remove the two thumbscrews securing the Left and Right Docking Brackets to the High Capacity Feeder frame, then remove the brackets.
Page 88: Fig 2-7 High Capacity Feeder Rear Cover
High Capacity Feeder frame. Slide the edges the Rear Cover into the groves in the Left and Right Covers. Use two machine screws to secure the Rear Cover to the High Capacity Feeder frame. 2-420 DocuPrint N4525 Network Printer - Service Guide...
Page 89: Fig 2-8 High Capacity Feeder Left Cover
RRP 2-3High Capacity Feeder Left Cover (PL 12.1) Left Cover S4525-197 Fig 2-8 High Capacity Feeder Left Cover Removal Slide Trays 3 and 4 a few inches out of the High Capacity Feeder. Open the Left Door C. Remove two machine screws securing the Left Cover to the High Capacity Feeder frame.
Page 90: Rrp 2-4Door C Assembly (Pl 12.11)
Remove the E-ring from the rear of the Cover Assembly shaft. Slide Door C Assembly to the rear until the front of the Assembly clears the front shaft, and remove the Assembly. 2-422 DocuPrint N4525 Network Printer - Service Guide...
Page 91: Fig 2-10 Right Cover
RRP 2-5Right Cover (PL 12.1) Right Cover S4525-199 Fig 2-10 Right Cover Removal Remove the two machine screws securing the Right Cover to the High Capacity Feeder frame. Lift up the Right Cover to free the two latching tabs from the High Capacity Feeder frame, and remove the Cover.
Page 92: Fig 2-11 Bottom Front Cover
Bottom Front Cover. Reinstall the Bottom Front Cover onto the High Capacity Feeder frame. Use two screws to secure the Cover to the frame. Close Trays 4 and 5. 2-424 DocuPrint N4525 Network Printer - Service Guide...
Page 93: Fig 2-12 High Capacity Feeder Feed Motor
RRP 2-7High Capacity Feeder Feed Motor (PL 12.2) Motor, High Capicity Feeder Figure 1 Figure 2 S4525-201 Fig 2-12 High Capacity Feeder Feed Motor Removal Remove the High Capacity Feeder Rear Cover (RRP 2-2). Disconnect P/J217 from the High Capacity Feeder Board. Hold on to the rear of the Feed Motor while you remove the two screws securing the Motor Bracket to the frame (Figure 1).
Page 94: Fig 2-6 High Capacity Feeder
Remove the E-ring securing High Capacity Feeder Drive Gear 1 and the E-ring securing Tray 4 Drive Gear 1 and slide both Gears off of the shafts (Figure 2). Remove the Drive Belt from the High Capacity Feeder Drive Pulley. 2-426 DocuPrint N4525 Network Printer - Service Guide...
Page 95: Rrp 2-9High Capacity Feeder Board (Pl 12.2)
RRP 2-9High Capacity Feeder Board (PL 12.2) S4525-203 Fig 2-14 High Capacity Feeder Board Removal Remove the High Capacity Feeder Rear Cover (RRP 2-2). Disconnect all seven P/Js from the High Capacity Feeder Board. Press in and release the latches on the four plastic standoffs securing the Board to the High Capacity Feeder frame, and remove the Board.
Page 96: Fig 2-15 Lift Motor
Reinstall the Lift Motor onto the printer frame. Use three long screws to secure the Motor to the frame. Reconnect the P/J to the rear of the Motor. Reinstall the High Capacity Feeder Rear Cover. Reinstall the Paper Tray. 2-428 DocuPrint N4525 Network Printer - Service Guide...
Page 97: Fig 2-16 Tray 3 Paper Size Sensor Board
RRP 2-11Tray 3 Paper Size Sensor Board (PL 12.3) Tray 3 Paper Size Sensor Board Fig 2-16 Tray 3 Paper Size Sensor Board Removal Slide Paper Tray 3 out of the High Capacity Feeder. Disconnect the P/J110 from the Size Sensor Board. Remove the screw securing the Tray 3 Paper Size Sensor Board to the High Capacity Feeder frame, then remove the Sensor.
Page 98: Fig 2-17 Tray 4 And Tray 5 Paper Size Sensor Boards
Align the positioning tabs and screw holes. Reconnect the P/J to the Size Sensor Board. Use one screw to secure the Board to the frame. Reinstall Paper Tray 4 and Paper Tray 5. 2-430 DocuPrint N4525 Network Printer - Service Guide...
Page 99: Fig 2-18 Trays 3, 4, And 5 Feed Clutches
RRP 2-13Trays 3, 4, and 5 Feed Clutches (PL 12.5~PL 12.7~PL 12.9) Feed Clutch (J211) (J213) (J215) S4525-207 Fig 2-18 Trays 3, 4, and 5 Feed Clutches Removal Remove the Rear Cover. Remove the Paper Tray associated with the Feed Clutch you are going to remove.
Page 100: Fig 2-19 Trays 3, 4, And 5 No Paper Actuators
Bracket while inserting the right side into the opening. Release the Bracket and it should snap into place and secure the Bracket to the frame. Reinstall the No Paper Sensor (RRP 2-15). Reinstall the Paper Tray. 2-432 DocuPrint N4525 Network Printer - Service Guide...
Page 101: Fig 2-20 Trays 3, 4, And 5 No Paper Sensors
RRP 2-15Trays 3, 4, and 5 No Paper Sensors (PL 12.3~PL 12.4) No Paper Sensor Fig 2-20 Trays 3, 4, and 5 No Paper Sensors Use this procedure for removing and replacing the No Paper Sensors for Trays 3, 4, and 5. Removal Remove the Paper Tray associated with the No Paper Sensor you are going to remove.
Page 102: Fig 2-21 Trays 3, 4, And 5 Paper Level Sensors
Release the rear latch and the Sensor snaps into place. Release the Actuator and make sure it moves freely between the arms of the Sensor. Reconnect the P/J to the Sensor. Reinstall the Paper Tray. 2-434 DocuPrint N4525 Network Printer - Service Guide...
Page 103: Rrp 2-17Left Door C Interlock Switch (Pl 12.11)
RRP 2-17Left Door C Interlock Switch (PL 12.11) (J114) Interlock Switch Left Cover Assembly S4525-211 Fig 2-22 Left Door C Interlock Switch Removal Open the Left Door C Assembly. Squeeze together the top and bottom of the Interlock Switch to release the Switch latches, and pull the Switch away from the High Capacity Feeder frame.
Page 104: Rrp 2-18Tray 4 Take Away Sensor (Pl 12.11)
Reinstall the Inner Chute onto the High Capacity Feeder frame. Use two screws to secure the Inner Chute. Reinstall the Spring to the left side of the Inner Chute. Close the Left Door C Assembly. 2-436 DocuPrint N4525 Network Printer - Service Guide...
Page 105: Fig 2-24 Tray 3 Feeder Assembly
RRP 2-19Tray 3 Feeder Assembly (PL 12.5) S4525-213 Fig 2-24 Tray 3 Feeder Assembly Take care not to break or dislodge the No Paper Actuator when Caution removing or replacing the Tray 3 Feeder Assembly. Removal Remove Tray 3 from the High Capacity Feeder. Remove the Rear Cover (RRP 2-2).
Page 106 Reinstall the Inner Chute onto the High Capacity Feeder frame. Use two screws to secure the Inner Chute. Reinstall the Spring to the left side of the Inner Chute. Reinstall the Rear Cover (RRP 2-2). Reinstall Tray 3. 2-438 DocuPrint N4525 Network Printer - Service Guide...
Page 107: Fig 2-25 Tray 3 Retard Assembly
RRP 2-20Tray 3 Retard Assembly (PL 12.6) Upper Take Away Chute Inner Chute Spring Figure 1 Figure 2 S4525-214 Fig 2-25 Tray 3 Retard Assembly Removal Remove Tray 3 from the High Capacity Feeder. Remove the Rear Cover (RRP 2-2). Remove the High Capacity Feeder Left Door C (RRP 2-3) Open the Left Door C Assembly.
Page 108: Fig 2-26 Tray 3 (Cont'd)
Slide the Retard Assembly to the front of the High Capacity Feeder, then swing the rear of the Assembly out of the High Capacity Feeder (Figure 3). S4525-215 Fig 2-26 Tray 3 (cont’d) 2-440 DocuPrint N4525 Network Printer - Service Guide...
Page 109 Replacement Insert the Retard Assembly into the High Capacity Feeder as shown in the figure. Insert the bearing end of the Shaft into the bearing cutout at the front of the High Capacity Feeder frame. Slide the Shaft far enough to the front so you can insert the rear of the Shaft into the cutout in at the rear of the High Capacity Feeder frame.
Page 110: Fig 2-27 Tray 3 Pick, Feeder, And Retard Rollers
Rotate the Roller so the end tabs line up with the slots on the shaft One-Way Clutch (PL12.5.7) and push the Roller down the shaft until the latch locks the Roller into place. Repeat steps 2 and 3 for the Pick and Retard Rollers. Reinstall Tray 3. 2-442 DocuPrint N4525 Network Printer - Service Guide...
Page 111: Fig 2-28 High Capacity Feeder Tray 4
RRP 2-22High Capacity Feeder Tray 4 (PL 13.1) Tray 4 Release button S4525-217 Fig 2-28 High Capacity Feeder Tray 4 Removal Pull Tray 4 out until it stops. Press and hold the tray release button while you slide Tray 4 out of the High Capacity Feeder.
Page 112: Rrp 2-23Tray 4 Front Cover (Pl 13.1)
Insert the two latches located on the inside of the Front Cover into the two slots in the Tray frame. Press the Cover against the frame. Use one screw to secure the Cover to the frame. Slide Tray 4 back into the High Capacity Feeder. 2-444 DocuPrint N4525 Network Printer - Service Guide...
Page 113: Rrp 2-24Tray 5 Take Away Sensor (Pl 12.4)
RRP 2-24Tray 5 Take Away Sensor (PL 12.4) Tray 5 Take Away Sensor (J126) Fig 2-30 Tray 5 Take Away Sensor Removal Remove Tray 3, Tray 4 and Tray 5 from the High Capacity Feeder. Squeeze together the four latches that are located at the four corners of the Tray 5 Take Away Sensor, while pulling the Sensor up and out of the cutout in the High Capacity Feeder frame.
Page 114: Fig 2-31 Tray 4 Take Away Roller
RRP 2-25Tray 4 Take Away Roller (PL 12.8) Figure 1 Figure 2 Fig 2-31 Tray 4 Take Away Roller 2-446 DocuPrint N4525 Network Printer - Service Guide...
Page 115: Fig 2-32 Tray 4 (Cont'd)
Removal Slide out Tray 5. Remove the Rear Cover (RRP 2-2). Remove the High Capacity Feeder Left Cover (RRP 2-3) Open the Left Door C Assembly. Remove the Spring that is located on the left side of the Inner Chute (Figure 1). Remove the two screws securing the Inner Chute to the High Capacity Feeder frame, and remove the Inner Chute.
Page 116: Fig 2-33 Tray 4 Feeder Assembly
Feeder frame, and slide the Bearing off of the shaft. Hold down the Stopper Link while you pull the Feeder Assembly to the front of the High Capacity Feeder frame. Remove the Feeder Assembly from Feeder 4. 2-448 DocuPrint N4525 Network Printer - Service Guide...
Page 117: Fig 2-34 Tray 4 Retard Assembly
RRP 2-27Tray 4 Retard Assembly (PL 12.8) Separator Gear Separator Spring Separator Assembly Separator Support S4525-223 Fig 2-34 Tray 4 Retard Assembly Removal Remove Tray 4 from the High Capacity Feeder (RRP 2-22). Remove the High Capacity Feeder Rear Cover (RRP 2-2). Open the Left Door C Assembly.
Page 118: Fig 2-35 Tray 4 Feed, Pick And Retard Rollers
Rotate the Roller so the end tabs line up with the slots on the shaft One-Way Clutch (PL12.7.6) and push the Roller down the shaft until the latch locks the Roller into place. Repeat steps 2 and 3 for the Pick and Retard Rollers. Reinstall Tray 4. 2-450 DocuPrint N4525 Network Printer - Service Guide...
Page 119: Rrp 2-29High Capacity Feeder Tray 5 (Pl 13.2)
RRP 2-29High Capacity Feeder Tray 5 (PL 13.2) Latch Spring Release Button Release Button Tray 5 S4525-225 Fig 2-36 High Capacity Feeder Tray 5 Removal Remove Tray 3. Slide Tray 5 out unit it stops. Use a flat screwdriver blade to press down on the latch spring that is located on the left Tray 5 guide rail, while you slide free the left side of the Tray.
Page 120: Rrp 2-30Tray 5 Front Cover (Pl 13.3)
Tray frame. Press the Cover against the frame. Use two screws to secure the Cover to the frame. Close Tray 5 Upper Chute. Slide Tray 5 back into the High Capacity Feeder. 2-452 DocuPrint N4525 Network Printer - Service Guide...
Page 121: Fig 2-38 Tray 5 Feeder Assembly
RRP 2-31Tray 5 Feeder Assembly (PL 12.9) Feeder Assembly S4525-227 Fig 2-38 Tray 5 Feeder Assembly Removal Remove Tray 3 and Tray 5 from the High Capacity Feeder. Remove the High Capacity Feeder Rear Cover (RRP 2-2). Remove Tray 5 Feed Clutch (RRP 2-13). Remove the E-ring securing the Feed Shaft Bearing to the High Capacity Feeder frame, and slide the Bearing off of the shaft.
Page 122: Fig 2-39 Tray 5 Retard Assembly
Retard Support Shaft from the cutout in the High Capacity Feeder frame. Slide the Retard Assembly to the front of the High Capacity Feeder, and remove the Assembly. 2-454 DocuPrint N4525 Network Printer - Service Guide...
Page 123: Fig 2-40 Tray 5 Feed, Pick And Retard Rollers
RRP 2-33Tray 5 Feed, Pick and Retard Rollers (PL 12.9~PL 12.10) Roller Roller Latch Slot S4525-229 Fig 2-40 Tray 5 Feed, Pick and Retard Rollers Replace the Feed, Pick and Retard Rollers as a unit. Note Removal Remove Tray 4 and slide out Tray 5. Slide the Chute forward so it clears the Rollers.
Page 124 Blank Page 2-456 DocuPrint N4525 Network Printer - Service Guide...
Page 125: Fru Parts List
FRU Parts List PL12 & PL13 High Capacity Feeder Parts List Using the Parts List The callout numbers shown in each parts exploded illustration correspond to the parts list numbers for that illustration. Throughout this manual, parts are identified by the prefix “PL”, followed by a number, a decimal point, and another number.
Page 126: Fig 2-40 Pl12.1 Covers And Frame
PL 12.1 Covers and Frame S4525-232 Fig 2-40 PL12.1 Covers and Frame 2-458 DocuPrint N4525 Network Printer - Service Guide...
Page 127: Table 2-26 Pl 12.1 Covers And Frame
Table 2-26 PL 12.1 Covers and Frame ID No. Part Number Name / Description 048E37272 Cover, Left High Capacity Feeder 802E08720 Cover, Front Spring, Ground 802E12540 Cover, Right 048E37260 Cover, Rear Frame Assembly, Cabinet, High Capacity Feeder (with 7 & 8) 017E91970 Caster 017E91980...
Page 128: Fig 2-41 Pl 12.2 High Capacity Feeder Board, Harness, And Drive
PL 12.2 High Capacity Feeder Board, Harness and Drive S4525-233 Fig 2-41 PL 12.2 High Capacity Feeder Board, Harness, and Drive 2-460 DocuPrint N4525 Network Printer - Service Guide...
Page 129: Table 2-27 Pl 12.2 High Capacity Feeder Board, Harness & Drive
Table 2-27 PL 12.2 High Capacity Feeder Board, Harness & Drive ID No. Part Number Name / Description 127K28460 Motor Assembly, Feed (with 2~4) Motor Assembly, Feed, High Capacity Feeder Damper Assembly, Motor Bracket, Motor 423W47353 Belt, Synchronous Gear, 27/26 T Gear, 88 T Gear, 87T Gear, 46 T...
Page 130 PL 12.3 Tray Interface 1 S4525-234 Fig 2-42 Tray Interface 1 2-462 DocuPrint N4525 Network Printer - Service Guide...
Page 131: Table 2-28 Pl 12.3 Tray Interface 1
Table 2-28 PL 12.3 Tray Interface 1 ID No. Part Number Name / Description 127K20662 Motor Assembly, Tray 3 Sensor Actuator, Trays 3 & 4 Support Actuator, Trays 3 & 4 107E08680 Sensor, Trays 3 & 4 054K09030 Chute Assembly, Front (Tray 3) 054K08820 Chute Assembly, Front (Tray 4) 110K07040...
Page 132 PL 12.4 Tray Interface 2 S4525-235 Fig 2-43 Tray Interface 2 2-464 DocuPrint N4525 Network Printer - Service Guide...
Page 133 Table 2-29 PL 12.4 Tray Interface 2 ID No. Part Number Name / Description Sensor Actuator, Tray 5 Support Actuator, Tray 5 107E08680 Sensor, Tray 5 Stopper Link, Trays 3 & 5 Stopper Link, Tray 4 Spring, Torsion 130E81311 Sensor, Tray 5 Bracket, Stopper Cable Tie Clamp...
Page 134 PL 12.5 Paper Pick Up - Tray 3 Fig 2-44 Paper Pick-Up Tray 3 2-466 DocuPrint N4525 Network Printer - Service Guide...
Page 135 Table 2-30 PL 12.5 Paper Pick Up - Tray 3 ID No. Part Number Name / Description Clutch Assembly Gear, 28T 013E86260 Bearing, Feeder 050K43520 Feeder Assembly, (with 5~13) Roller Assembly Clutch Assembly, One Way Clutch Gear, 25T Bearing Shaft, Feed Gear, 31T Gear, 25T Support Assembly...
Page 136 PL 12.6 Retard and Take Away Roller - Tray 3 S4525-237 Fig 2-45 Retard and Take Away Roller - Tray 3 2-468 DocuPrint N4525 Network Printer - Service Guide...
Page 137 Table 2-31 PL 12.6 Retard and Take Away Roller - Tray 3 ID No. Part Number Name / Description Gear, 22/20T Spacer, Retard 809E27440 Spring Retard Assembly, (with 5~10) Roller Assembly Spacer Clutch Assembly, Friction Shaft Assembly, Retard Bearing 6 Support, Retard Gear, 22T Gear Stopper...
Page 138 PL 12.7 Paper Pick-Up - Tray 4 S4525-238 Fig 2-46 Paper Pick-Up Tray 4 2-470 DocuPrint N4525 Network Printer - Service Guide...
Page 139 Table 2-32 PL.12.7 Paper Pick-Up - Tray 4 ID No. Part Number Name / Description Clutch Assembly Bearing, Feed 050K43510 Feeder Assembly, High Capacity Feeder (with 4~12) Bearing Roller Assembly Clutch Assembly One Way Clutch Gear, 25 Bearing Shaft Feed High Capacity Feeder Gear, 31T Gear, 25T Support Assembly Pick...
Page 140 PL 12.8 Retard and Take Away Roller - Tray 4 S4525-239 Fig 2-47 Retard and Take Away Roller - Tray 4 2-472 DocuPrint N4525 Network Printer - Service Guide...
Page 141 Table 2-33 PL 12.8 Retard and Take Away Roller - Tray 4 ID No. Part Number Name / Description Gear, 22T Spring, Retard 050K42411 Retard Assembly (with 4~9) Roller Assembly Spacer Clutch Assembly, Friction Bearing Shaft Assembly, Retard, Support, Retard Support Assembly, Retard Gear Stopper Gear, 22T...
Page 142 PL 12.9 Paper Pick Up - Tray 5 S4525-240 Fig 2-48 Paper Pick-Up Tray 5 2-474 DocuPrint N4525 Network Printer - Service Guide...
Page 143 Table 2-34 PL 12.9 Paper Pick Up - Tray 5 ID No. Part Number Name / Description Clutch Assembly Bearing, Feed 050K43510 Feeder Assembly, (with 4~12) Bearing Roller Assembly Clutch Assembly, One-Way Clutch, Gear 25T Bearing Shaft, Feed Gear, 31T Gear, 25T Support Assembly, Pick 038E20200...
Page 144 PL 12.10 Retard and Take Away Roller - Tray 5 S4525-241 Fig 2-49 Retard and Take Away Roller - Tray 5 2-476 DocuPrint N4525 Network Printer - Service Guide...
Page 145 Table 2-35 PL 12.10 Retard and Take Away Roller - Tray 5 ID No. Part Number Name / Description Gear 22 MN Spring, Retard RT Retard Assembly, (with 4~9) Roller Assembly Spacer Clutch Assembly, Friction Bearing Shaft Assembly, Retard Support Retard Shaft Hinge Gear Stopper Joint...
Page 146: Fig 2-50 Left Cover Assembly
PL 12.11 Left Cover Assembly S4525-242 Fig 2-50 Left Cover Assembly 2-478 DocuPrint N4525 Network Printer - Service Guide...
Page 147: Table 2-36 Pl 12.11 Left Cover Assembly
Table 2-36 PL 12.11 Left Cover Assembly ID No. Part Number Name / Description 802K29120 Cover Assembly, L/H (with 2 ~8) Cover, L/H Bracket Assembly, Pinch Handle Assembly, L/H Support, Cover Support, Cover Chute, Feed, Out, HCF Support, L/H Cover Chute, L/H 110E93440 Switch, Interlock...
Page 148 PL 13.1 High Capacity Tray 4 S4525-243 Fig 2-51 High Capacity Tray 4 2-480 DocuPrint N4525 Network Printer - Service Guide...
Page 149 Table 2-37 PL 13.1 High Capacity Tray 4 ID No. Part Number Name / Description 05K42643 Tray Assembly, LT (with 2~27 Plate, Bottom Gear, 33T Pulley, Cable Cable, Lt Cable, Lt Pulley Guide Wire Bracket Assembly, Brake L (with 10~13) Gear, 12/28T Gear, 12/28T Link Assembly, Brake...
Page 150: Fig 2-52 High Capacity Tray 5 - Paper Stack
PL 13.2 High Capacity Tray 5 - Paper Stack S4525-244 Fig 2-52 High Capacity Tray 5 - Paper Stack 2-482 DocuPrint N4525 Network Printer - Service Guide...
Page 151: Table 2-38 Pl 13.2 High Capacity Tray 5 -Paper Stack
Table 2-38 PL 13.2 High Capacity Tray 5 -Paper Stack ID No. Part Number Name / Description 050K42653 Tray Assembly, Rt (with 2~23) Plate, Bottom Gear, 33T Pulley, Cable Shaft Assembly, Drive Cable Pulley Guide Wire Bracket Assembly, Brake R (with 10~13) Gear, 12/28T Gear, 12/28T Link Assembly, Brake...
Page 152: Fig 2-53 High Capacity Tray 5 - Paper Feed
PL 13.3 High Capacity Tray 5 - Paper Feed S4525-245 Fig 2-53 High Capacity Tray 5 - Paper Feed 2-484 DocuPrint N4525 Network Printer - Service Guide...
Page 153: Table 2-39 Pl 13.3 High Capacity Tray 5 - Paper Feed
Table 2-39 PL 13.3 High Capacity Tray 5 - Paper Feed ID No. Part Number Name / Description 059K14770 Transport Assembly - High Capacity Feeder (with 2~12 Chute Assembly, Upper Chute Assembly, Lower Bearing Bearing Roller Assembly, Take Away Bearing, Out Washer, Nylon Bearing, In Spring, Exit...
Page 154 Blank Page 2-486 DocuPrint N4525 Network Printer - Service Guide...
Page 155: Plug/Jack Connectors
Plug/Jack Connectors Use the table and map in this section to locate specific P/J connectors within the High Capacity Feeder. To find the location of a P/J within the High Capacity Feeder: Locate the P/J connector number in the first column of the P/J Location table. Locate the corresponding map and location number, such as M1-5, in the second column.
Page 156: P/J Location Table
High Capacity Feeder Board P110 Tray 3 Size Sensor P111 Tray 3 No Paper Sensor P112 Tray 3 Level Sensor P115 Tray 4 Size Sensor P117 Tray 4 No Paper Sensor P118 Tray 4 Level Sensor 2-488 DocuPrint N4525 Network Printer - Service Guide...
Page 157 Table 2-40 Plug/Jack Location Table (cont'd.) Map & Connected to... Other end connected to... Number M2-2 High Capacity Feeder Board P116 Tray 5 No Paper Sensor P119 Tray 5 Level Sensor P120 Tray 5 Size Sensor M2-13 High Capacity Feeder Board P215 Tray 5 Feed Clutch P216 Tray 5 Lift Motor M2-10 High Capacity Feeder Board P126 Tray 4 Take Away Sensor...
Page 158: P/J Location Map 1
P/J Location Map 1 S4525-230 Fig 2-54 Map 1 2-490 DocuPrint N4525 Network Printer - Service Guide...
Page 159: P/J Location Map 2
P/J Location Map 2 S4525-231 Fig 2-55 Map 2 Volume 2 / High Capacity Feeder - P/J Connectors 2-491...
Page 160 Blank Page 2-492 DocuPrint N4525 Network Printer - Service Guide...
Page 161: Wiring Diagrams And Signal Information
Wiring Diagrams and Signal Information This section of the manual contains a Master Wiring Diagram for the High Capacity Feeder option. The Master Wiring Diagram shows the interconnections of the major subsystems within the High Capacity Feeder. The remainder of this section presents individual block diagrams (BD) to better illustrate the electrical relationships between components and assemblies within the High Capacity Feeder.
Page 162: Fig 2-57 Hcf Board - Tray 5 Components
SNR#TA5 SNR#TA5 CL$FEEDA CL$FEEDA CL$FEEDB CL$FEEDB FMOT$ON FMOT$ON FEED$RDY FEED$RDY CABI$TX CABI$TX 5VRTN 5VRTN CABI#RX CABI#RX 5VRTN 5VRTN 24VRTN 24VRTN +24V +24V +24V +24V Fig 2-57 HCF Board - Tray 5 Components 2-494 DocuPrint N4525 Network Printer - Service Guide...
Page 163: Table 2-41 Hcf Board - Tray 5 Components
Table 2-41 HCF Board - Tray 5 Components Signal Name Description CABI TEST Test point CAB#DET Monitors presence of the High Capacity Feeder. High=Not attached. Low=Attached SNR#TA4 Monitors paper travel between Tray 4 and Tray 3. High=Paper present. Low=Paper not present SNR#TA5 Monitors paper travel between Tray 5 and Tray 4.
Page 164: Fig 2-58 Hcf Board - Hcf Tray 3 And Tray 4 Components
P/J110 SNR##SIZE2 SIZE2 5VRTN P/J115 SNR##SIZE3 SIZE3 5VRTN P/J117 SNR#NOP3 NOP3 5VRTN P/J118 SNR#LVL3 LVL3 5VRTN P/J217 +24V FEED MOT Fig 2-58 HCF Board - HCF Tray 3 and Tray 4 Components 2-496 DocuPrint N4525 Network Printer - Service Guide...
Page 165: Table 2-42 Hcf Board - Hcf Tray 3 And Tray 4 Components
The following table shows the signal names for this BD: Table 2-42 HCF Board - HCF Tray 3 and Tray 4 Components Signal Name Description SNR#TAROL4 Monitors paper travel between Tray 4 and Tray 3. High=Paper present. Low=Paper not present L/H#INTLK Monitors the High Capacity Feeder Cover Interlock Switch.
Page 166 Blank Page 2-498 DocuPrint N4525 Network Printer - Service Guide...
Page 167: Duplex Unit
Topics, such as the Duplex Unit theory of operation and configuration page details, etc., are located on the companion (supplemental) Printer Service & Support Resources CD-ROM. To ensure complete understanding of the product, participation in Xerox DocuPrint N4525 printer service training is recommended. Volume 3 / Duplex Unit - General Information...
Page 168: General Information
The base printer provides all of the Duplex Unit power requirements; requirements +5VDC and +24VDC Size and weight Height: 369mm / 14.5 inches Width: 92mm / 3.6 inches Depth: 484mm / 19.0 inches Weight: 5.5kg / 12.1 pounds 3-500 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 169: Continuous Printing Speed
Continuous Printing Speed After The First Sheet Out in Duplex Mode Table 3-2 Continuous Printing Speed Paper Type Tray 1 and 2 Tray 3 High Capacity Multi-sheet (prints per (prints per Feeder 4 & 5 Bypass Feeder minute) minute) (prints per (prints per minute) minute)
Page 170: Paper Path
Exit Gate so the paper path runs to the Offset Roller. The Offset Roller drives the sheet partially into the Output Bin, then stops. First Image S4525-322 Fig 3-3 Duplex Paper Path - Step 1 3-502 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 171 Step 2 The Inverter Counterclockwise Clutch switches on and rotates the Offset Roller backwards, driving the sheet of paper back into the Exit Unit. The Exit Gate Solenoid toggles the Exit Gate so the paper path runs to the Exit Roller. The Exit Roller drives the sheet of paper toward the Duplex Unit.
Page 172 Inside the Duplex Unit the Duplex Exit Gate Solenoid toggles the Duplex Exit Gate so the paper path runs to the Duplex Exit Rollers, which drive the paper into the Face Up Output Bin. S4525-324 Fig 3-5 Duplex Paper Path - Step 3 3-504 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 173 Duplex Unit Paper Path Components The Duplex Unit Paper Path is made up of a number of transport rollers and paper sensors. Exit Gate and Exit Gate Solenoid Diverts paper to either the Duplex Transport Roller #1 or to the Face Up Bin. Transport Roller #1 and Pinch Roller Drives paper down through the Duplex Unit and into the lower Transport Roller.
Page 174: Duplexer Unit Assemblies And Sensors
Duplex Board and Bracket Duplex Exit Gate Solenoid Inner Chute Assembly Duplex Wait Sensor Duplex Exit Roller Belt Duplex Drive Assembly Duplex Wait Clutch S4525-267 Fig 3-6 Duplex Unit Assemblies and Sensors 3-506 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 175: Error Codes And Messages
Error Codes and Messages Error messages The front panel displays error codes when it encounters certain system failures or problems otherwise undetected by the user. These error codes are discussed in this section. When an error code first occurs, cycle power on the printer to see if the error re-occurs.
Page 176: Duplex Unit Error Code Table
There is a paper jam at the Duplex Exit sensor. 3-520 Clear Duplx Unit Logic control on the Print Engine Controller Board sensed that there is paper remaining in the Duplex Unit. 3-508 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 177: Table 3-4 Error Code E4-2 Paper Jam Clear Duplex Unit
RAP 3-1 Error Code E4-2 Paper Jam Clear Duplx Unit There is a paper jam at the Duplex Exit Sensor. Logic Control on the Print Engine Controller Board sensed that the Duplex Exit Sensor did not actuate within the specified time after the Face Up Exit Sensor was actuated. Table 3-4 Error Code E4-2 Paper Jam Clear Duplex Unit Step...
Page 178 RAP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components Fuser Drive Assembly (RRP 1-53) Fuser Assembly. 3-510 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 179: Table 3-5 Error Code E7-3 Close Duplex Unit
RAP 3-2 Error Code E7-3 Close Duplx Unit The Duplex Cover is open. The Duplex Unit is closed, but Logic Control on the Print Engine Controller Board sensed that the Duplex Interlock Switch is open. Table 3-5 Error Code E7-3 Close Duplex Unit Step Actions and Questions DUPLEX COVER CHECK...
Page 180: Table 3-6 Error Code E8-1 Paper Jam Clear Duplex Unit
Do the Exit Roller and Transport Roller rotate when you run the test? EXIT ROLLER BELT REPLACEMENT Go to step 7 Problem solved Replace the Exit Roller Belt (RRP 3-13). Does the error code appear? 3-512 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 181 Table 3-6 Error Code E8-1 Paper Jam Clear Duplex Unit (cont'd.) Step Actions and Questions The following printer components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely.
Page 182: Table 3-7 Error Code E8-2 Paper Jam Clear Duplex Unit
When performing step 4 above, do all of the mechanical Duplex Rollers rotate? Drives. PRINT ENGINE CONTROLLER BOARD Go to step Problem REPLACEMENT solved Replace the Print Engine Controller Board (RRP 1-72). Does the error code appear? 3-514 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 183 Table 3-7 Error Code E8-2 Paper Jam Clear Duplex Unit (cont'd.) Step Actions and Questions The following printer components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely.
Page 184: Fig 3-14 Duplex Exit Sensor
Replace the Print Engine Controller Board (RRP 1-72). Does the error code appear? INPUT/OUTPUT BOARD REPLACEMENT Go to step 7 Problem solved Replace theInput/Output Board (RRP 1-70). Does the error code appear? 3-516 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 185 Table 3-8 Error Code E8-6 Paper Jam Clear Duplex Unit (cont'd.) Step Actions and Questions The following printer components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely.
Page 186: Table 3-9 Error Code C6-1 Paper Jam Clear Duplex Unit
Inspect the condition of the Wait Roller, is it in (RRP 3-11) good condition? PRINT ENGINE CONTROLLER BOARD Go to step 7 Problem REPLACEMENT solved Replace the Print Engine Controller Board (RRP 1-72). Does the error code appear? 3-518 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 187 Table 3-9 Error Code C6-1 Paper Jam Clear Duplex Unit (cont'd.) Step Actions and Questions The following printer components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely.
Page 188: Fig 3-17 Duplex Wait Sensor
Replace the Print Engine Controller Board (RRP 1-72). Does the error code appear? INPUT/OUTPUT BOARD REPLACEMENT Go to step 7 Problem solved Replace the Input/Output Board (RRP 1-70). Does the error code appear? 3-520 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 189 Table 3-10 Error Code C8-6 Paper Jam Clear Duplex Unit (cont'd.) Step Actions and Questions The following printer components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely.
Page 190 Blank Page 3-522 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 191: Troubleshooting
Troubleshooting Inoperative Duplex Unit The Duplex Unit does not function, the Duplex Motor does not switch on, and the problem is not identified by a displayed Error Code. Table 3-11 Inoperative Duplex Unit Step Actions and Questions INTERFACE CABLE INSPECTION Go to step 2 Reconnect the Duplex...
Page 192 RAP, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components Input/Output Board. 3-524 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 193: Removal And Replacement Procedures (Rrps)
Removal and Replacement Procedures (RRPs) This section provides many procedures and illustrations for removing and replacing key Field Replaceable Units (FRUs) within the Duplex Unit. Notations in the RRP text Locations, such as R or right, given in the RRPs assume you are facing the printer console panel.
Page 194: Fig 3-7 Duplex Unit Assembly
Duplexer Unit to the metal stud on the front Multi-sheet Bypass Feeder Support. Hook the Support Cable to the printer frame and close the Duplex Unit. Reconnect the Duplex Unit interface cable at the rear of the printer. 3-526 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 195: Fig 3-8 Duplex Unit Cover
RRP 3-2 Duplex Unit Cover (PL 14.1) S4525-253 Fig 3-8 Duplex Unit Cover Removal If the Face Up Output Bin is installed, remove the two knurled screws securing the Bin to the Cover, and remove the Bin. Remove the four screws securing the Duplex Unit Cover to the Duplex Unit frame, and remove the cover.
Page 196: Fig 3-9 Duplex Unit Rear Cover
Position the Rear Cover over the Duplex Unit. Route the Support Cable through the cutout in the side of the Rear Cover. Seat the Cover on the Duplex Unit, and use two screws to secure the Cover. 3-528 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 197 RRP 3-4 Duplex Unit Front Cover (PL 14.1) S4525-255 Fig 3-10 Duplex Unit Front Cover Removal Remove the two screws, shown in the figure, securing the front Cover to the Duplex Unit, and remove the Cover. Replacement Seat the front Cover on the Duplex Unit, and use two screws to secure the Cover.
Page 198: Fig 3-11 Duplex Board And Bracket
Position the Board so P223 is near the Duplex Motor. Use four screws to secure the Board to the Bracket. Reconnect the six P/Js to the Duplex Board. Reinstall the Duplex Cover (RRP 3-2). 3-530 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 199 RRP 3-6 Duplex Wait Clutch (PL 14.2) Fig 3-12 Duplex Wait Clutch Removal Remove the Duplex Rear Cover (RRP 3-3). Disconnect P/J224 (wait Clutch) from the Duplex Board. Remove the E-ring from the end of the Wait Clutch shaft. Push up on the shaft latch as you slide the Clutch off of the shaft. Replacement Position the Wait Clutch so the notch in the Clutch lines up with the tab on the Duplex Unit frame.
Page 200: Fig 3-13 Duplex Drive Assembly
Drive Assembly (RRP 3-6). Use four screws to secure the Drive Assembly to the Duplex Unit frame. Reinstall the Duplex Board and Bracket (RRP 3-5). Reinstall the Duplex Rear Cover (RRP 3-3). 3-532 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 201 RRP 3-8 Duplex Exit Sensor (PL 14.3) S4525-259 Fig 3-14 Duplex Exit Sensor Removal Remove the Duplex Cover (RRP 3-2). Squeeze the four latches securing the Sensor to the bracket on the Upper Chute and remove the Duplex Exit Sensor. Disconnect P/J124 from the Sensor.
Page 202 Reconnect P/J222 to the Duplex Board. Reroute the wire harness through the wire clip located on the Solenoid Bracket. Reinstall the Duplex Rear Cover (RRP 3-3). Reinstall the Duplex Cover (RRP 3-2). 3-534 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 203 RRP 3-10 Exit Roller (PL 14.4) S4525-261 Fig 3-16 Exit Roller Removal Remove the Duplex Cover (RRP 3-2). Remove the E-rings securing the rear and Front ends of the Exit Roller shaft to the Duplex Unit frame. Slide both bearings toward the center of the shaft, and lift the Exit Roller shaft out of the Duplex Unit frame.
Page 204 Replace the black screw that secures the bracket to the Duplex Unit. Reinstall the Duplex Cover (RRP 3-2). 3-536 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 205 RRP 3-12 Duplex Interlock Switch (PL 14.4) S4525-263 Fig 3-18 Duplex Interlock Switch Removal Remove the Duplex Cover (RRP 3-2). Remove the Duplex Front Cover (RRP 3-4). Disconnect P/J125 from the Interlock Switch. Squeeze the sides of the switch together to release the two latches securing the Duplex Interlock Switch to the Duplex Unit frame, and remove the switch.
Page 206 Reinstall the Exit Gate Solenoid Assembly and Bracket onto the frame. Use two black screws to secure the Bracket (RRP 3-9). Reinstall the Duplex Drive Assembly (RRP 3-7). Reinstall the Duplex Board Bracket (RRP 3-5). 3-538 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 207: Fig 3-20 Duplex Pinch Roller
RRP 3-14 Duplex Pinch Roller (PL 14.5) S4525-265 Fig 3-20 Duplex Pinch Roller Removal Remove the Inner Chute Assembly (RRP 3-15). Working from the front of the Chute, use the flat blade of a screwdriver to carefully free the arms of the roller latch from the Inner Chute (see the figure), while pressing out on the rubber roller Repeat step 3 for each of the remaining two rubber rollers on shaft.
Page 208: Fig 3-21 Inner Chute Assembly
Use the flat blade of a screwdriver to pry (arrow in the figure) the rear hinge of the Inner Chute out of hole in the Duplex Unit frame. Remove the Inner Chute. 3-540 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 209: Fru Parts List
FRU Parts List FRU PL 14 Duplex Unit Parts List Usint the Parts List The callout numbers shown in each parts exploded illustration correspond to the parts list numbers for that illustration. Throughout this manual, parts are identified by the prefix “PL”, followed by a number, a decimal point, and another number.
Page 210 PL 14.1 Duplex Covers and Assembly S4525-268 Fig 3-22 PL 14.1 Duplex Covers and Assembly 3-542 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 211: Fig 3-22 Pl 14.1 Duplex Covers And Assembly
Table 3-12 PL 14.1 Duplex Covers and Assembly ID No. Part Number Name / Description 048E41201 Cover, Duplex Unit 048E36010 Cover, Duplex Unit - rear 048E41213 Cover, Duplex Unit - front Handle, Duplexer Unit release lever. 022K57110 Transport Assembly, Duplex (PL14.2, PL14.3, PL14.4, &...
Page 212 PL 14.2 Duplex Drive S4525-325 Fig 3-23 PL 14.2 Duplex Drive 3-544 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 213: Table 3-13 Pl 14.2 Duplex Drive
Table 3-13 PL 14.2 Duplex Drive ID No. Part Number Name / Description 160K62772 Board, Duplex Bracket, Duplex 121K84001 Clutch, Assembly 127K83981 Motor Assembly, Duplex (with 5~9) Motor, Duplex Damper Assembly, Motor Gear, 24/30/32T Belt, Synchronous Bracket Assembly, Motor Support Assembly, Duplex Harness Assembly, Wait Sensor (J475<>J123) Harness Assembly, Exit Sensor (J474<>J124/J125)
Page 214 PL 14.3 Duplex Upper Chute S4525-270 Fig 3-24 PL 14.3 Duplex Upper Chute 3-546 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 215: Table 3-14 Pl 14.3 Duplex Upper Chute
Table 3-14 PL 14.3 Duplex Upper Chute ID No. Part Number Name / Description Clamp Latch Assembly (part of 99) Spring, Latch (part of 99 Spring Assembly, Pinch.i Spring Assembly, Pinch.h Roller, Pinch.b Roller, Pinch.a 130K83340 Sensor Bracket, Solenoid 121K82870 Solenoid Assembly (J222) Link, Gate Spring Assembly, Pinch.m...
Page 216 PL 14.4 Duplex Paper Transport S4525-271 Fig 3-25 PL 14.4 Duplex Paper Transport 3-548 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 217: Fig 3-25 Pl 14.4 Duplex Paper Transport
Table 3-15 PL 14.4 Duplex Paper Transport ID No. Part Number Name / Description 413W75959 Bearing 022K46650 Roller Assembly, Exit Gear, 14T 05K81820 Clutch Assembly, Friction Gear, 20/25T 423W00453 Belt, Synchronous 022K33940 Roller Assembly, Transport Gear, 18T Spacer Pulley, 20 423W12553 Belt, Synchronous 022K33950...
Page 218 PL 14.5 Duplex Inner Chute S4525-272 Fig 3-26 PL 14.5 Duplex Inner Chute 3-550 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 219: Table 3-16 Pl 14.5 Duplex Inner Chute
Table 3-16 PL 14.5 Duplex Inner Chute ID No. Part Number Name / Description 054K08671 Chute Assembly, Inner (with 2~9) Exit Gate, Duplex Spring, Exit Gate Pinch Roller, Duplex Spring, Lower Pinch Roller Duplex Holder Spring, Duplex Holder Chute, Inner Label, Handle Volume 3 / Duplex Unit - FRU Parts List 3-551...
Page 220 Blank Page 3-552 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 221: Plug/Jack Connectors
Plug/Jack Connectors Use the table and map in this section to locate specific Plug/Jack connectors within the Duplex Unit. To find the location of a Plug/Jack within the Duplex Unit; Locate the Plug/Jack connector number in the first column of the Plug/Jack Location table.
Page 222 Plug Jack Connectors - Duplex Unit S4525-267 Fig 3-27 Plug/Jack Location Map 1 3-554 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 223: Wiring Diagrams And Signal Information
Wiring Diagrams and Signal Information This section of the manual contains a Master Wiring Diagram for the Duplex Unit option. The Master Wiring Diagram shows the interconnections of the major subsystems within the Duplex Unit. The remainder of this section presents an individual block diagram (BD) to better illustrate the electrical relationships between components and assemblies within the Duplex Unit.
Page 224: Duplex Unit Master Wiring Diagram
Duplex Unit Assembly Duplex Unit Controller Board Input/Output Board Feeder Board Duplex Motor Exit Solenoid Wait Clutch Wait Sensor Exit Sensor Duplex Interlock Switch S4525-274 Fig 3-28 Duplex Unit Master Wiring Diagram 3-556 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 225: Fig 3-29 Bd1 Input/Output Board´duplex Board´duplex Components
BD1 Input/Output Board ↔ Duplex Board ↔ Duplex Components P/J463 J611 P611 P/J473 PRINT ENGINE DUP#DET DUP#DET CONTROLLER BOARD 5VRTN 5VRTN +24V +24V 24VRTN 24VRTN INV SW INV SW DREGI DREGI 5VRTN 5VRTN OPT#RX+ OPT#RX+ 5VRTN 5VRTN OPT$TX+ OPT$TX+ N.C(5VRTN) CL#IEXIT CL#ICCW CL#ICCW...
Page 226: Table 3-18 Bd1 Input/Output Board´duplex Board´duplex Components
Switches the Wait Roller. High=On. Low=Off SOL$DGATE Switches the Duplex Exit Gate Solenoid. High=Off. Low=On /A, A, /B, B Pulse signals sent by the Duplex Board to rotate the Duplex Motor 3-558 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 227: Envelope Feeder
The Envelope Feeder is a customer installed option that feeds a variety of envelopes into the DocuPrint N4525 Network laser printer. It is easily installed in place of the Multi_Sheet Bypass Feeder. The printer’s low voltage power supply provides all the the DC voltages required by the Envelope Feeder.
Page 228: General Information
The Printer provides all of the Envelope Feeder power requirements; +5VDC and +24VDC. Size and weight Height: 133mm / 5.2 inches Width: 278mm / 10.9 inches Depth: 444mm / 17.4 inches Weight: 3.0kg / 6.6 lbs 4-560 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 229: The Envelope Feeder Paper Path
The Envelope Feeder Paper Path The Envelope Feeder Paper Path is the physical route that an envelope takes through the Envelope Feeder during a print cycle. The Feed Belt and Retard Roller feed a single envelope out of the stack and into the Take Away Roller. The Take Away Roller drives the envelope into the Transport Roller.
Page 230 Blank Page 4-562 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 231: Error Codes And Messages
Error Codes and Messages Error messages The front panel displays error codes when it encounters certain system failures or anomalies otherwise undetected by the user. These error codes are discussed in this section. When an error code first occurs, cycle power OFF, then ON to see if the error re-occurs.
Page 232: Envelope Feeder Error Code Table
Envelope Feed Clutch was actuated. For Envelope Feeder Performance Problems, refer to the Envelope Feeder Performance Problems refer to the Troubleshooting section of this manual. 4-564 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 233: Table 4-3 Error Code C8-1 Paper Jam Reset Env/Bypass Feeder
RAP 4-1 Error Code C8-1 Paper Jam Reset Env/Bypass Feeder There is problem with the Envelope Feed Sensor. Logic Control on the Print Engine Controller Board sensed the Envelope Feed Sensor was actuated while the printer was in standby. Table 4-3 Error Code C8-1 Paper Jam Reset Env/Bypass Feeder Step Actions and Questions ENVELOPE FEED SENSOR INSPECTION...
Page 234: Table 4-4 Error Code C9-1 Paper Jam Reset Env/Bypass Feeder
ENVELOPE CONTROLLER BOARD Go to step 6 Problem REPLACEMENT solved 1. Replace the Envelope Controller Board (RRP 4-8) 2. Run a series of multiple envelope feeds. Does the error code appear? 4-566 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 235 Table 4-4 Error Code C9-1 Paper Jam Reset Env/Bypass Feeder Step Actions and Questions PRINT ENGINE CONTROLLER BOARD Go to step 7 Problem REPLACEMENT solved Replace the Print Engine Controller Board (RRP 1-72). Does the error code appear? INPUT/OUTPUT BOARD REPLACEMENT Go to step 8 Problem solved...
Page 236 Repair Analysis Procedures, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. Wiring and connectors linking the components. 4-568 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 237: Table 4-5 Error Code C9-2 Paper Jam Reset Env/Bypass Feeder
RAP 4-3 Error Code C9-2 Paper Jam Reset Env/Bypass Feeder There is a paper jam between the Envelope Feeder and the Tray 2 Take Away Sensor. Logic Control on the Print Engine Controller Board sensed that the Tray 2 Take Away Sensor did not actuate within the specified time after the Envelope Feed Clutch was actuated.
Page 238 Wiring and connectors linking the components Envelope Controller Board (RRP 4-8) Print Engine Controller Board (RRP 1-72) Input/Output Board (RRP 1-70). 4-570 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 239: Table 4-6 Error Code C9-3 Paper Jam Reset Env/Bypass Feeder
RAP 4-4 Error Code C9-3 Paper Jam Reset Env/Bypass Feeder There is a paper jam between the Envelope Feeder and the Registration Sensor. Logic Control on the Print Engine Controller Board sensed that the Registration Sensor did not actuate within the specified time after the Envelope Feed Clutch was actuated. Table 4-6 Error Code C9-3 Paper Jam Reset Env/Bypass Feeder Step Actions and Questions...
Page 240 Wiring and connectors linking the components Envelope Controller Board (RRP 4-8) Print Engine Controller Board (RRP 1-72) Input/Output Board (RRP 1-70). 4-572 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 241: Troubleshooting
Troubleshooting Envelope Feeder Performance Problems Inoperative Envelope Feeder The Envelope Feeder does not function, the Envelope Motor does not switch on, and the problem is not identified by a displayed Error Code. Table 4-7 Inoperative Envelope Feeder Step Actions and Questions ENVELOPE FEEDER CONNECTION Go to step 2 Replace or...
Page 242: Fig 4-4 Envelope Feeder
Replace the Print Engine Controller Board (RRP 1-72). Does the Envelope Feeder function normally? INPUT/OUTPUT BOARD REPLACEMENT Go to step Problem solved Replace the Input/Output Board (RRP 1-70). Does the error code appear? 4-574 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 243 Table 4-7 Inoperative Envelope Feeder Step Actions and Questions DRIVE BELT INSPECTION Replace the Go to step problem 1. Remove the Envelope Bottom Cover (RRP 4-2). gears. (PL 2. Remove the Envelope Top Cover (RRP 4-3). 16.2) 3. Remove the Envelope Rear Cover (RRP 4-5). 4.
Page 244 Blank Page 4-576 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 245: Removal And Replacement Procedures (Rrps)
Removal and Replacement Procedures (RRPs) This section contains the removal and replacement procedures for select parts of the Envelope Feeder. Preparation Before you begin any Removal and Replacement Procedure: Switch OFF the printer power and disconnect the power cord from the AC wall outlet.
Page 246 Call-outs in an illustration point to the specific RRP component and also to associated and adjacent components that are related to the removal and replacement of the specific component. 4-578 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 247 RRP 4-1 Envelope Feeder (PL16.1 ) S4525-326 Fig 4-4 Envelope Feeder Removal Pull the Envelope Feeder out and remove it from the Multi-sheet Bypass Feeder Support. Replacement If the Multi-sheet Bypass Feeder is installed, pull the Multi-sheet Bypass Feeder Assembly out of the Multi-sheet Bypass Feeder Support. Align the two pins on the Envelope Feeder with the corresponding openings in the Multi-sheet Bypass Feeder Support, and slide the Feeder into the Support.
Page 248: Fig 4-5 Envelope Feeder Bottom Cover
Remove the two screws securing the Bottom Cover to the Feeder frame and remove the Cover. Replacement Turn the Feeder upside down. Reinstall the Bottom Cover onto the Feeder frame. Use two screws to secure the Bottom Cover to the Feeder frame. 4-580 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 249: Fig 4-6 Envelope Feeder Top Cover
RRP 4-3 Envelope Feeder Top Cover (PL16.1 ) S4525-284 Fig 4-6 Envelope Feeder Top Cover Removal Remove the Envelope Feeder Bottom Cover (RRP 4-2). Remove the two screws at the top and one screw on the side securing the Top Cover to the Feeder frame, and remove the Top Cover.
Page 250 Reinstall the Front Cover onto the Feeder frame. Align the positioning tabs on the Cover with the tabs on the frame. Use one screw to secure the Cover to the frame. Reinstall the Bottom Cover (RRP 4-2). 4-582 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 251: Fig 4-8 Envelope Feeder Rear Cover )
RRP 4-5 Envelope Feeder Rear Cover (PL16.1 ) S4525-332 Fig 4-8 Envelope Feeder Rear Cover ) Removal Remove the Bottom Cover (RRP 4-2). Remove the Top Cover (RRP 4-3). Remove the screw securing the Rear Cover to the Feeder frame. Release the latch and remove the Cover.
Page 252: Fig 4-9 Envelope Feeder Center Bracket Assembly
Remove the screw securing one end of the frame ground Bracket to the frame. Remove the three screws securing the Center Bracket Assembly to the frame, and remove the Center Bracket and frame ground Bracket. 4-584 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 253 RRP 4-7 Envelope Motor (PL 16.2) S4525-333 Fig 4-10 Envelope Motor Removal Remove the Rear Cover (RRP 4-5). Disconnect the P/J217 from the Envelope Motor Board. Remove four screws securing the Motor to the Motor Bracket, and remove the Motor. Volume 4 / Envelope Feeder - RRPs 4-585...
Page 254: Fig 4-11 Envelope Feeder Board
Fig 4-11 Envelope Feeder Board Removal Remove the Rear Cover (RRP 4-5). Disconnect the six P/Js from the Envelope Feeder Board. Remove the two screws securing the Board to the frame, and remove the Board. 4-586 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 255 Blank Page Volume 4 / Envelope Feeder - RRPs 4-587...
Page 256: Fig 4-12 Feed Belt
RRP 4-9 Feed Belt (PL 16.2) Figure 1 S4525-329 Figure 2 Fig 4-12 Feed Belt 4-588 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 257 Removal Remove the Rear Cover (RRP 4-5). Remove the Center Bracket Assembly (RRP 4-6). Pull the Motor Bracket away from the Feeder (refer to RRP 4-14). Remove one KL-Clip from the end of the Core Roller shaft. Slide the shaft free, and remove it and the Core Roller from the frame (Figure Remove the KL-Clip from the inboard end of the Bottom Roller shaft.
Page 258: Fig 4-13 Envelope Feeder Retard Roller Assembly )
RRP 4-10 Envelope Feeder Retard Roller Assembly (PL 16.3) Figure 1 Figure 2 Figure 3 S4525-290 Fig 4-13 Envelope Feeder Retard Roller Assembly ) 4-590 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 259 Removal Remove the Top Cover (RRP 4-3). Remove the Front Cover (RRP 4-4). Spread the Weight Arm legs so they release from the Feeder frame, and remove the Weight Arm (Figure 1). Remove the two screws that secure the Paper Guide to the Upper Cover (Figure 1).
Page 260: Fig 4-14 No Paper Actuator
Rock the Actuator back and forth to make sure it moves freely in the slots, and the small end of the Actuator moves freely between the two arms of the No Paper Sensor. Reinstall the Bottom Cover (RRP 4-2). 4-592 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 261: Fig 4-15 No Paper Sensor
RRP 4-12 No Paper Sensor (PL 16.2) S4525-292 Fig 4-15 No Paper Sensor Removal Remove the Bottom Cover (RRP 4-2). Squeeze the Sensor latches while pulling the Sensor away from the frame, and remove the Sensor. Disconnect P/J130 from the Sensor. Replacement Reconnect P/J130 to the Sensor.
Page 262: Fig 4-16 Envelope Size Sensor Assembly
RRP 4-13 Envelope Size Sensor Assembly (PL16.1 ) S4525-293 Fig 4-16 Envelope Size Sensor Assembly 4-594 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 263 Removal Remove the Bottom Cover (RRP 4-2). Remove the Rear Cover (RRP 4-5) Disconnect P/J131 from the Envelope Board. Remove the wire harness from the wire channel and from the harness clip. Remove the two screws securing the Sensor Assembly to the Side Guide and remove the Assembly.
Page 264 RRP 4-14 Envelope Feed Clutch (PL 16.2) S4525-294 Fig 4-17 Envelope Feed Clutch 4-596 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 265 Removal Remove the Rear Cover (RRP 4-5). Remove the Center Bracket (RRP 4-6). Disconnect P/J221 from the Feed Clutch. Remove the three screws securing the Motor Bracket to the Feeder frame. Carefully pull the Motor Bracket an inch away from the frame. Slide the Feed Clutch off of the Bracket.
Page 266: Fig 4-18 Upper Cover
RRP 4-15 Upper Cover (PL 16.3) Figure 1 Pinch Rollers Figure 2 S4525-295 Fig 4-18 Upper Cover 4-598 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 267 Removal Remove the Front Cover (RRP 4-4). Remove the Center Bracket Assembly (RRP 4-6). Spread the Weight Arm legs so they release from the Feeder frame, and remove the Weight Arm. Remove the KL-Clip securing the Friction Clutch and Stopper to the Retard Shaft (Figure 1), and remove the Clutch and the Stopper.
Page 268: Fig 4-19 Feed Sensor
Press the Sensor latches into the holes in the frame. The latches snap into place. Reconnect P/J132 to the Sensor. Reinstall the wire harness into the wire clips. Reinstall the Upper Cover (RRP 4-15). 4-600 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 269: Fru Parts List
FRU Parts List FRU PL 16 Envelope Feeder Parts List Using the Parts List The callout numbers shown in each parts explode illustration correspond to the parts list numbers for that illustration. Throughout this manual, parts are identified by the prefix “FRU”, followed by a number, a decimal point, and another number.
Page 270 PL16.1 Envelope Feeder 1 Fig 4-20 Pl 16.1 Envelope Feeder 1 4-602 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 271 Table 4-8 PL 16.1 Envelope Feeder 1 ID No. Part Number Name / Description 097S02567 Feeder Assembly, Envelope (with 2~26, PL16.2 & PL16.3) 048E54590 Cover, Top 162K37420 Harness (P604<>J700) Bracket Assembly, Center (with 5~15) Bracket, Rear Bracket, Assembly - Rear (with 7~9) Latch Assembly, Rear 809E16860 Spring, Latch...
Page 272 PL 16.2 Envelope Feeder 2 S4525-299 Fig 4-21 PL 16.2 Envelope Feeder 2 4-604 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 273: Table 4-9 Pl 16.2 Envelope Feeder 2
Table 4-9 PL 16.2 Envelope Feeder 2 ID No. Part Number Name / Description Harness, Dc - Motor (J217 <> J704) Bracket Assembly, Motor (with 3~9) 127K21850 Motor Clamp Clamp Bracket Assembly, Motor Gear, Z56/18 Gear, Z47 Gear Idler 013E82680 Bearing Feeder Harness, Clutch (J221<>J703) 121K87190...
Page 274 PL 16.3 Envelope Feeder 3 S4525-300 Fig 4-22 PL 16.3 Envelope Feeder 3 4-606 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 275: Fig 6-7 Guide
Table 4-10 PL 16.3 Envelope Feeder 3 ID No. Part Number Name / Description Cover Assembly, Upper (with 2~12) 048K74520 Cover, Upper Harness, I/F Sensor (J132<>J702) 130E83280 Sensor Spring, Plate Bearing, Feeder 059E90750 Roller, Pinch Spring, Plate Holder Assembly, Retard (with 6 & 10~12) Holder, Retard 022K49880 Roller Assembly, Retard (with 12)
Page 276 Blank Page 4-608 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 277: Wiring Diagrams And Signal Information
Wiring Diagrams and Signal Information This section of the manual contains a Master Wiring Diagram for the Envelope Feeder option. The Master Wiring Diagram shows the interconnections of the major subsystems within the Envelope Feeder. The remainder of this section presents an individual block diagram (BD) to better illustrate the electrical relationships between components and assemblies within the Envelope Feeder.
Page 278: Fig 4-25 Bd1 Print Engine Controller Board To Envelope Feeder Components
Monitors presence of Envelope Feeder. High=Envelope Feeder not present. Low=Envelope Feeder present SNR#NO PAPER Monitors level of paper in the Envelope Feeder. High=No paper present. Low=Paper present Switches the Envelope Motor 4-614 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 279: Plug/Jack Connectors
Plug/Jack Connectors Locating Plug/Jack Connectors Map Use the table and map in this section to locate specific Plug/Jack connectors within the Envelope Feeder. To find the location of a Plug/Jack within the Envelope Feeder: Locate the Plug/Jack connector number in the first column of the Plug/Jack Location table.
Page 280: Plug/Jack Location Table
P604 Input/Output Board M1-3 Envelope Feeder Board Plug/Jack130 No Paper Sensor M1-2 Envelope Feeder Board Plug/Jack132 Feed Sensor M1-4 Envelope Feeder Board Plug/Jack221 Feed Clutch M1-1 Envelope Feeder Board Plug/Jack217 Envelope Motor 4-610 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 281: Plug/Jack Location Map 1
Plug/Jack Location Map 1 S4525-330 Fig 4-23 Plug/Jack Location Map Volume 4 / Envelope Feeder -P/J Connectors 4-611...
Page 282 Blank Page 4-612 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 283: Face-Up Bin
Face-Up Bin S4525-601 Fig 5-1 The DocuPrint N4525 Network Laser Printer Face-Up Bin. S4525-600 Fig 5-2 The DocuPrint N4525 Network Laser Printer Face-Up Bin with the Optional Duplex Unit shown highlighted Volume 5 / Face-Up Bin 5-615...
Page 284: General Information
Configuration Customer installed. S4525-600 Fig 5-3 Envelope Feeder highlighted Face-Up stack capacity 200 Sheets (80 gsm) Recommended Paper sizes See Book I, Volume 1, General Infromation or the N4525 User Guide. 5-616 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 285: Removal And Replacement Procedures (Rrps)
Removal and Replacement Procedures (RRPs) Contents RRP 5-1 Face-Up Bin without the Duplex Unit Option RRP 5-2 Face-Up Bin with the Duplex Unit Volume 5 / Face-Up Bin 5-617...
Page 286: Fig 5-4 Face-Up Bin
Remove the two screws securing the Face-Up Bin to the printer bracket. Remove the two screws securing the printer bracket to the Print Engine and remove. Replacement Reverse the above procedures. 5-618 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 287: Fig 5-5 Face-Up Bin Attached To The Optional Duplex Unit
RRP 5-2 Face-Up Bin with the Duplex Unit S4525-604 Fig 5-5 Face-Up Bin attached to the Optional Duplex Unit Removal Remove the Face-Up Bin from the Bin Cover. Remove the link on the inside front of the Bin Cover by lifting up, then removing from the Duplex Unit and Bin Cover.
Page 288: Fig 5-6 Face-Up Bin
PL21.1 Face-Up Bin S4525-602 Fig 5-6 Face-Up Bin 5-620 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 289: Table 5-2 Pl 21.1 Face-Up Bin
Table 5-2 PL 21.1 Face-Up Bin ID No. Part Number Name / Description 050K29690 Bin, Face Up 031K92370 Link, Bin Cover, Bin Screw, Bin Cover Screw 600K61021 Kit, Bin Cover Duplex [with items 3 & 6 (Qty. 2)] Volume 5 / Face-Up Bin 5-621...
Page 290 Blank Page 5-622 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 291: Docuprint N4525 Network Laser Printer
Finisher Fig 2-1 DocuPrint N4525 Network Laser Printer with the Finisher Option Highlighted. Volume 6 / Finisher - General Information 6-623...
Page 292: Finisher Overview
Topics, such as the Finisher theory of operation and configuration page details, etc., are located on the companion Printer Service & Support Resources CD-ROM. To ensure complete understanding of the product, participation in Xerox DocuPrint N4525 printer service training is recommended.
Page 293: General Information
General Information Table 2-2 Finisher Specifications Category Specification Configuration User installed option. The Finisher provides hole punch, stapling (up to 50 sheets), print job offset and stacking up to 3,000 sheets of paper. The Finisher docks and latches with the Printer. All Finisher operations are controlled by the Printer, specifically from the System Controller Board through The Print Engine Controller Board.
Page 294: The Finisher Paper Path
Paper Stack section: Mechanism to stack up the delivered paper on the bin and to move the Stacker Bin up or down according to the stacking volume. Fig 2-2 Finisher Paper Path 2-626 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 295: Horizontal Transport (H-Tra) Section
Horizontal Transport (H-Tra) Section The paper delivered from the printer passes the Horizontal Transport In-Gate and is transferred into the Horizontal Transport. Then, the rotation of the Horizontal Transport Feed Roller in the Horizontal Transport transfers the paper towards the Finisher. Also, during the paper transfer, the rotation of the Horizontal Transport Feed Roller shifts the paper toward the front side, to aid registration.
Page 296 Face Down Bin Full Sensor The Face Down Bin Full Sensor detects when the Printer’s Face Down Bin, located under the Horizontal Transport, and on the top of the Printer, becomes full with paper. 2-628 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 297: Punch Section
Punch Section The paper transferred from the Horizontal Transport to the Finisher passes the Finisher Input Path Sensor in the Finisher, and it is transferred towards the Shift Roller by the rotation of the Finisher Input Roller and Regi Roller. After the trailing edge of the paper passed the Finisher Input Path Sensor, the rotation speed of the Shift Roller decreases to reduce the paper transfer speed of the Shift Roller towards the Exit Roller.
Page 298 Shift Roller rotation speed decreases to start the punching operation. Finisher Path Sensor The Finisher Path Sensor monitors the paper passing condition between the Finisher Input Roller and the Regi Roller. Punch Unit The Punch Unit punches paper. 2-630 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 299: Shift Section
Shift Section Shifting Job After the trailing edge of paper passes the Finisher Path Roller, the Exit Pinch Roll Guide opens upwards. Then, the Shift Roller Unit is moved forwards or backwards to perform an offset job, and, at the same time, the Shift Roller rotates to transfer the paper towards the Exit Roller.
Page 300 Shift Roller The Shift Roller transfers paper towards the Exit Roller. Shift Roller Home Position Sensor The Shift Roller Home Position Sensor detects the home position of the Shift Roller Unit. 2-632 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 301: Fig 2-6 Fixing Paper On The Stacker Bin
Fixing the Paper on the Stacker Bin (only when the shifting job is executed) After the paper is delivered on the Stacker Bin, it is held and fixed by the actuator on the Sheet Clamp Shaft. When the trailing edge of the delivered paper passes the Finisher Exit Path Sensor, the actuator releases the fixed paper.
Page 302: Compiler And Jogger Section
Jogger Home Position Sensor. Then, the Jogger Flap decelerates and jogs the bundle of paper. The stapling job cannot be executed, if the Shift Job is performed. Note Fig 2-7 Compiler and Jogger Section 2-634 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 303 Compiler and Jogger Section, continued Fig 2-8 Compiler and Jogger Section, continued Compiler and Jogger Components Exit Roller The Exit Roller delivers paper to the Stacker Bin, and transfers paper to the Compiler Tray. Sub Paddle The Sub Paddle assists the paper to be drawn into the Compiler Tray. Main Paddle The Main Paddle draws the paper into the Compiler Tray, and then pushes surely the trailing edge of the paper against the end wall in the Compiler Tray.
Page 304: Staple Section
The Staple Unit staples a bundle of paper. Stapler Traverse Home Position Sensor The Stapler Traverse Home Position Sensor detects the absolute position of the Stapler Unit from the presence of a notch on the guide rail. 2-636 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 305: Exit Section
Exit Section When the staple job is not performed. At the specified pulses after the Finisher Exit Path Sensor detects the leading edge of the paper, the Exit Pinch Roll Guide lowers to nip the paper with the Exit Roller. Then the rotation of the Exit Roller delivers the paper on the Stacker Bin.
Page 306 The Paper Exit Sensor monitors the paper passing condition on the Exit Pinch Roll Guide. Exit Roller Open/Close Home Position Sensor The Exit Roller Open/Close Home Position Sensor detects whether the Exit Pinch Roll Guide is in the home position. 2-638 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 307: Paper Stack Section
Paper Stack Section From the Finisher Exit section, the paper or a bundle of paper is delivered on the Stacker Bin. The Stacker Height Sensor detects the stack amount of bundles of paper, and moves up or down the Stacker Bin according to the stack amount. At the initialization, the absolute position of the Stacker Bin is recognized by the rotation of the Linear Encoder.
Page 308: Fig 2-13 Stacker Height Sensor
Paper Stack Components. Fig 2-13 Stacker Height Sensor 2-640 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 309 Stacker Bin Paper Sensor The Stacker Bin Paper Sensor detects the presence of paper on the Stacker Bin. Stacker Bin Position Sensor The Stacker Bin Position Sensor detects the current position of the Stacker Bin from the Linear Encoder. The Linear Encoder has three slits differently spaced along the edge, and according to these differently spaced slits, the Stacker Bin positions on the Finisher are classified into 25%, 50% and 100% positions.
Page 310: Fru, Sensor & Interlock Locations
FRU, Sensor & Interlock Locations FRU, Sensor & Interlock Locator Map 1 Fig 2-14 FRU, Sensor & Interlock Locator Map 1 S4525-608 2-642 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 311 FRU, Sensor & Interlock Locator Map 1 Legend FRU PL List 14.1 FRU, Sensor & Interlock Locator Map 1 Legend Callout Number Description Identifier Horizontal Transport In-Gate Sensor SE29 Horizontal Transport Top Cover Open Sensor SE30 Horizontal Transport Exit Sensor Se32 Face Down Bin Full Sensor Horizontal Transport Input Path Sensor...
Page 312: Fru, Sensor & Interlock Locator Map 2
FRU, Sensor & Interlock Locator Map 2 Fig 2-15 FRU, Sensor & Interlock Locator Map 2 S4525-607 2-644 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 313 FRU, Sensor & Interlock Locator Map 2 Legend FRU PL List 14.2 FRU, Sensor & Interlock Locator Map 2 Legend Callout Number Description Identifier Jogging Motor Rear Jogging Motor Rear Home Position Sensor Jogging Motor Front Home Position Sensor Jogging Motor Front Punch Dust Bin Full Sensor Finisher Main Feed Motor Finish Paper Input Path Sensor...
Page 314: Frus, Sensors And Interlocks Locator
FRUs, Sensors and Interlocks Locator Fig 2-16 FRU, Sensor & Interlock Locator Map 3 S4525-605 2-646 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 315 FRU, Sensor & Interlock Locator Map 1 Legend FRU PL List 14.3 FRU, Sensor & Interlock Locator Map 3 Legend Callout Number Description Identifier Clamp Motor MP4, SE5 Compiler Home Position Sensor Paddle Assembly Compiler Exit Roller Safety Interlock Switch SW26 Finisher Exit Path Sensor Compiler Tray No Paper Sensor...
Page 316: Fru, Sensor & Interlock Locator Map 4
FRU, Sensor & Interlock Locator Map 4 Fig 2-17 FRU, Sensor & Interlock Locator Map 4 S4525-606 2-648 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 317 FRU, Sensor & Interlock Locator Map 4 Legend FRU PL List 14.4 FRU, Sensor & Interlock Locator Map 4 Legend Callout Number Description Identifier Compiler Tray Motor [Stacking] Shift Motor Stack Height Sensor Rear Shift Assembly Home Position Sensor Stack Height Sensor Front Stapler Swing Motor Assembly Stapler Swing Home Position 1 Sensor SE11...
Page 318 Blank Page 2-650 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 319: Error Codes And Messages
Error Codes and Messages Error messages The Control Panel displays error codes when it encounters certain system failures or anomalies otherwise undetected by the user. These error codes are discussed in this section. When an error code first occurs, cycle power on the printer to see if the error recurs.
Page 320 Use the Removal and Replacement Procedures (RRPs) to replace a part. Final Checkout Test the printer to be sure you corrected the initial problem and there are no additional problems present. S4525-03 Fig 6-1 Service Flowchart 6-652 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 321: Repair Analysis Procedure Table
Repair Analysis Procedure Table Table 6-3 Repair Analysis Procedure Table Displayed Error Fault Description Go To Unit/ Error Code Page Message Paper Jam F4-11 The Trail Edge of paper does not leave the Finisher 6-655 Clear Area E Transport Entrance Sensor within the specified time.
Page 322: Fig 6-22 Finisher Exit Path Sensor
Communication Error between Print Engine 6-709 Power Off/On Controller and Finisher Board. 6-31 Install Correct H6-8 Incorrect Finisher Option detected as being 6-710 Finisher installed. (N24/N32/N40 Finisher Installed instead 6-32 of N4525 Finisher. 6-654 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 323 RAP 6-1 Error Code F4-11 Paper Jam Clear Area E There is a problem at the Horizontal Transport Input Path Sensor. The trail edge of the paper does not leave the Finisher Horizontal Transport Input Path Sensor within the specified time (SE 31). Table 6-4 Error Code F4-11 Step Actions and Questions...
Page 324: Table 6-4 Error Code F4-11
Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-656 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 325 RAP 6-2 Error Code F4-12 Paper Jam Clear Area E There is a problem at the Horizontal Transport Input Path Sensor. Logic control on the Print Engine Controller Board sensed that the Horizontal Transport Input Path Sensor was not actuated within a specified time after the Fuser Exit Sensor was actuated (SE 31).
Page 326: Table 6-5 Error Code F4-12
Horizontal Transport In-Gate Solenoid (RRP 6-7) Horizontal Transport Input Path Sensor (RRP 6-11) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-658 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 327 RAP 6-3 Error Code F4-16 Paper Jam Clear Area E There is a problem with the Horizontal Transport Input Path Sensor. Remaining paper is detected by the Horizontal Transport Input Path Sensor (SE 31). Paper was detect by the Horizontal Transport Input Path Sensor during initialization of the finisher (SE 31).
Page 328: Table 6-6 Error Code F4-16
Horizontal Transport Input Sensor (RRP 6-11) Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-660 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 329 RAP 6-4 Error Code F4-21 Paper Jam Clear Area F There is a problem at the Horizontal Transport Exit Sensor. Logic Control sensed that the Horizontal Transport Exit Sensor was not deactuated within a specified time after it was actuated (SE 31). Table 6-7 Error Code F4-21 Step Actions and Questions...
Page 330: Table 6-7 Error Code F4-21
Horizontal Transport Exit Sensor (RRP 6-12) Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-662 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 331 RAP 6-5 Error Code F4-22 Paper Jam Clear Area F There is a problemat the Horizontal Transport Exit Sensor. Logic Control on the Print Engine Controller Board sensed that the Horizontal Transport Exit Sensor was not actuated within a specified time after the Horizontal Transport Input Path Sensor was actuated (SE 32).
Page 332: Table 6-8 Error Code F4-22
Horizontal Transport Exit Sensor (RRP 6-12) Finisher Main Board (RRP 6-84) Finisher Main Motor (RRP 6-38) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-664 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 333 RAP 6-6 Error Code F4-26 Paper Jam Clear Area F There is a problem at the Horizontal Transport Exit Sensor. Remaining paper detected by the Horizontal Transport Exit Sensor (SE 32). Paper was detected by the Horizontal Transport Exit Sensor when the Finisher was initialized (SE 32).
Page 334: Table 6-9 Error Code F4-21
Horizontal Transport Exit Sensor (RRP 6-12) Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-666 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 335: Table 6-10 Error Code F4-31
RAP 6-7 Error Code F4-31 Paper Jam Clear Area F There is a problem at the Finisher Input Path Sensor. Logic Control on the Print Engine Controller Board sensed that the Finisher Input Path Sensor was not deactuated within a specified time after it was actuated. Table 6-10 Error Code F4-31 Step Actions and Questions...
Page 336 Finisher Main Board (RRP 6-84) Finisher Main Motor (RRP 6-38) Print Engine Controller Board (RRP 1-72) Finisher drive train components including gears, belts, and rollers. Wiring and connectors linking the components. 6-668 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 337 RAP 6-8 Error Code F4-32 Paper Jam Clear Area F There is a problem at the Finisher Input Path Sensor. Logic Control on the Print Engine Controller Board sensed that the Finisher Input Path Sensor was not actuated within the specified time after the Horizontal Transport Exit Sensor was actuated.
Page 338: Table 6-11 Error Code F4-32
Finisher Main Board (RRP 6-84) Finisher Main Motor (RRP 6-38) Print Engine Controller Board (RRP 1-72) Finisher drive train components including gears, belts, and rollers. Wiring and connectors linking the components. 6-670 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 339 RAP 6-9 Error Code F4-36 Paper Jam Clear Area G There is a problem at the Finisher Input Path Sensor. Logic Control on the Print Engine Controller Board sensed that the Finisher Input Path Sensor was actuated at start of printing. Table 6-12 Error Code F4-36 Step Actions and Questions...
Page 340: Table 6-12 Error Code F4-36
Finisher Input Path Sensor (RRP 6-29) Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-672 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 341 RAP 6-10 Error Code F4-41 Paper Jam Clear Area G There is a problem at the Finisher Path Sensor. Logic Control on the Print engine Controller Board sensed that the Finisher Path Sensor did not deactuate within the specified time after it was actuated. Table 6-13 Error Code F4-41 Step Actions and Questions...
Page 342: Table 6-13 Error Code F4-41
Finisher Path Sensor (RRP 6-41) Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-674 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 343: Table 6-14 Error Code F4-42
RAP 6-11 Error Code F4-42 Paper Jam Clear Area G There is a problem at the Finisher Path Sensor. Logic Control on the Print Engine Controller Board sensed that the Finisher Path Sensor was not actuated within the specified time after the Finisher Input Path Sensor was actuated.
Page 344 Finisher Path Sensor (RRP 6-41) Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-676 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 345: Table 6-15 Error Code F4-46
RAP 6-12 Error Code F4-46 Paper Jam Clear Area G There is a problem at the Finisher Path Sensor. Logic Control on the Print Engine Controller Board sensed that the Finisher Path Sensor was actuated at start of printing. Table 6-15 Error Code F4-46 Step Actions and Questions FINISHER PATH SENSOR INSPECTION...
Page 346: Table 6-16 Error Code F4-51
Registration Rollers, Shift Rollers and Exit Rollers. retest. If still Are all of the Drive Rollers in the Finisher clean NO, go to and free of obvious wear and damage? step 6. 6-678 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 347 Table 6-16 Error Code F4-51 (cont'd.) Step Actions and Questions DRIVE TRAIN TEST Go to step 7 Replace the Finisher Main 1. Enter Diagnostics Mode. Feed Motor 2. From the Main Menu, select Comp Output Test / (RRP 6-38) & Finisher Unit / Fin Main Motor.
Page 348: Table 6-17 Error Code F4-52
Registration Rollers, Shift Rollers and Exit Rollers. retest. If still Are all of the Drive Rollers in the Finisher clean NO, go to and free of obvious wear and damage? step 6. 6-680 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 349 Table 6-17 Error Code F4-52 (cont'd.) Step Actions and Questions DRIVE TRAIN TEST Go to step 7 Replace the Finisher Main 1. Enter Diagnostics Mode. Feed Motor 2. From the Main Menu, select Comp Output Test / (RRP 6-38) & Finisher Unit / Fin Main Motor.
Page 350 Does the Control Panel display “with paper” retest. If still when you insert the paper into the Finisher Exit NO, go to Path Sensor, and “without paper” when you step 5. remove it? 6-682 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 351: Table 6-18 Error Code F4-56
Table 6-18 Error Code F4-56 (cont'd.) Step Actions and Questions The following Finisher components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely. If you cannot isolate this problem using the steps in this Repair Analysis Procedure, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem.
Page 352: Table 6-19 Error Code F4-61
Does the Control Panel display “with paper” retest. If still when you insert the paper into the Finisher Exit NO, go to Path Sensor, and “without paper” when you step 8. remove it? 6-684 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 353 Table 6-19 Error Code F4-61 (cont'd.) Step Actions and Questions PATH PAPER INSPECTION Go to step 6 Replace the suspect Inspect the Exit Rollers in the Compiler. Rollers & retest. If the problem still exists, go to Are all of the Exit Rollers in the Compiler clean step 6.
Page 354 1-72) & Does the Control Panel display “with paper” retest. If still when you actuate the Compiler Exit Path NO, go to Sensor, and “without paper” when you release step 5. 6-686 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 355: Table 6-20 Error Code F4-66
Table 6-20 Error Code F4-66 (cont'd.) Step Actions and Questions The following Finisher components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely. If you cannot isolate this problem using the steps in this Repair Analysis Procedure, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem.
Page 356 (RRP 6-2). 2. Repeat the Horizontal Transport In-Gate Interlock Test in Step 3 above. Does the display read “Open” when you open the In-Gate and “Close” when you release it? 6-688 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 357: Table 6-21 Error Code F6-1
Table 6-21 Error Code F6-1 (cont'd.) Step Actions and Questions FINISHER MAIN BOARD REPLACEMENT Problem Replace the solved Print Engine 1. Replace the Finisher Main Board (RRP 6-84). Controller 2. Repeat the Finisher Exit Path Sensor Test in Step 2 Board (RRP above.
Page 358: Table 6-22 Error Code F6-2
Horizontal Transport Top Cover Interlock (RRP 6-12) Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-690 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 359: Table 6-23 Error Code F7-1
RAP 6-20 Error Code F7-1 Close Stapler Door The Front Cover is open. Logic Control on the Print Engine Controller Board sensed that the Front Cover Interlock Switch is deactuated. Table 6-23 Error Code F7-1 Step Actions and Questions FINISHER FRONT COVER INSPECTION Go to step 2 Replace the Front Cover...
Page 360 6-84) & retest. If still Does the Control Panel display “Out of Range” NO, go to before lifting the rollers, and “In Range” when step 5. you lift them to their limit? 6-692 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 361: Table 6-24 Error Code F7-3
Table 6-24 Error Code F7-3 (cont'd.) Step Actions and Questions The following Finisher components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely. If you cannot isolate this problem using the steps in this Repair Analysis Procedure, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem.
Page 362 Does the display read “Docked” when the retest. If still Finisher is locked into the printer and NO, go to “Undocked” when it is unlatch and move back step 6. from the printer? 6-694 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 363: Table 6-25 Error Code F8-1
Table 6-25 Error Code F8-1 (cont'd.) Step Actions and Questions The following Finisher components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely. If you cannot isolate this problem using the steps in this Repair Analysis Procedure, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem.
Page 364 ENCODER ASSEMBLY REPLACEMENT Problem Go to step 5 solved Replace the Encoder Assembly (RRP 6-82). After powering on the printer, does the finisher go through a normal initialization and is the problem resolved? 6-696 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 365: Table 6-26 Error Code H5-11
Table 6-26 Error Code H5-11 (cont'd.) Step Actions and Questions FINISHER MAIN BOARD REPLACEMENT Problem Replace the solved Print Engine 1. Replace the Finisher Main Board (RRP 6-84). Controller 2. Repeat the Stacker Bin Height Sensor Test in Step 2 Board (RRP above.
Page 366: Table 6-27 Error Code H5-21
Components within the Jogger Assembly Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Wiring and connectors linking the components. 6-698 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 367: Table 6-28 Error Code H5-22
RAP 6-25 Error Code H5-22 Finisher Failure Power Off/On There is a problem with the Finisher Jogger Home Position Rear Sensor. Logic control on the Print Engine Controller Board sensed that there is a problem at the Jogger Home Position Rear Sensor. Table 6-28 Error Code H5-22 Step Actions and Questions...
Page 368: Table 6-29 Error Code H5-81
Go to step 5 REPLACEMENT solved 1. Replace the Exit Roller Open/Close Motor (RRP 6-61). 2. Repeat the Exit Roller Open/Close Motor Tests in Step 3 above. Does the Exit Motor cycle? 6-700 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 369 Table 6-29 Error Code H5-81 Step Actions and Questions DRIVE TRAIN INSPECTION Go to step 6 Replace the damaged Inspect the drive train, including belts, gears, and levers components of the entire Exit Roller Assembly. (RRP 6-60) & retest. If Does the entire drive train of the Exit Roller problem still Assembly appear to be in good condition, with...
Page 370: Table 6-30 Error Code H5-83
SHIFT MOTOR REPLACEMENT Problem Go to step 5 solved 1. Replace the Shift Motor (RRP 6-52). 2. Repeat the Shift Motor Tests in Step 3 above. Does the Shift Motor test OK? 6-702 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 371 Table 6-30 Error Code H5-83 (cont'd.) Step Actions and Questions DRIVE TRAIN INSPECTION Go to step 6 Replace any damaged Inspect the drive train, including belts, gears, and levers components of the entire Shift Roller Assembly. (RRP 6-50). Does the entire drive train of the Shift Roller If problem still assembly appear to be in good condition, with exists, go to...
Page 372: Table 6-31 Error Code H5-91
Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Broken or damaged components within the Stapler area, Compiler area, or along the paper path Wiring and connectors linking the components. 6-704 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 373 RAP 6-29 Error Code H5-92 Finisher Failure Error Code H5-93 Power Off/On There is a problem with the Stapler. Logic Control on the Print Engine Controller Board sensed that there is a problem at the Stapler Traverse Home Position Sensor.. Table 6-32 Error Code H5-92 Step Actions and Questions...
Page 374: Table 6-32 Error Code H5-92
Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Broken or damaged components within the Stapler area, Compiler area, or along the paper path Wiring and connectors linking the components. 6-706 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 375 RAP 6-30 Error Code H5-96 Finisher Failure Power Off/On There is a mechanical problem with the Stapler Swing. Logic Control on the Print Engine Controller Board sensed that there is a problem with the Stapler Swing. Table 6-33 Error Code H5-96 Step Actions and Questions SWING MOTOR TESTS...
Page 376: Table 6-33 Error Code H5-96
Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Broken or damaged components within the Stapler area, Compiler area, or along the paper path Wiring and connectors linking the components. 6-708 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 377: Table 6-34 Error Code H6-7
RAP 6-31 Error Code H6-7 Finisher Failure Power Off/On There is a communication problem with the Finisher. Logic Control on the Print Engine Controller Board sensed that there is a communication problem between the printer and the Finisher. Table 6-34 Error Code H6-7 Step Actions and Questions RESET...
Page 378: Table 6-35 Error Code H6-8
Finisher Main Board (RRP 6-84) Print Engine Controller Board (RRP 1-72) Broken or damaged components within the Stapler area, Compiler area, or along the paper path Wiring and connectors linking the components. 6-710 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 379 Key FRU Removal and Replacement Procedures (RRPs) Removal and Replacement Procedures Contents RRP 6-2 Horizontal Transport Pulley 2, Tension Spring, In-Gate Sensor and Ground Wire (PL 20.2) 6-715 RRP 6-3 Horizontal Transport Sync-Belt (PL 20.2) 6-716 RRP 6-4 Horizontal Transport Bracket Assembly (PL 20.2) 6-717 RRP 6-6 Transport Gear Kit (PL 20.2) 6-718...
Page 380 6-801 RRP 6-81 Finisher Right Cover (PL 20.14) 6-802 RRP 6-82 Encoder Assembly (PL 20.14) 6-804 RRP 6-83 Power Supply (PL 20.15) 6-806 RRP 6-84 Main Board Assembly (PL 20.15) 6-808 6-712 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 381: Removal And Replacement Procedures (Rrp)
Removal and Replacement Procedures (RRP) This section contains the removal and replacement procedures for major parts within the printer Finisher (Finisher). Preparation Before you begin any Removal and Replacement Procedure: Switch OFF the printer power. Disconnect the AC power cord from the wall outlet. Remove the EP Cartridge and cover it with a dark cloth or place it in a sealed container to protect it from exposure to light.
Page 382: Notations In The Rrp Text
Arrows in an illustration show direction of movement when removing a component. Slashes in a part name indicate that numerous components share the same heading and function. For example, "Gears In/Feed/Out" refers to Gear In, Gear Feed, and Gear Out. 6-714 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 383: Fig 6-2 Pulley 2, Tension Spring, Sensor And Ground Wire
RRP 6-2 Horizontal Transport Pulley 2, Tension Spring, In-Gate Sensor and Ground Wire (PL 20.2) S4525-422 Fig 6-2 Pulley 2, Tension Spring, Sensor and Ground Wire Removal Remove the Horizontal Transport Rear Cover Unhook the Tension Spring from the hole in the Horizontal Transport frame. Remove two screws that secure the Tension Bracket Assembly (PL 20.2.11) to the Horizontal Transport, and remove the bracket together with the spring.
Page 384: Fig 6-3 Sync-Belt
Pulley 2, Tension Spring, Sensor and Ground Wire Plug the connector (P/J260) of the Horizontal Transport Harness Assembly (PL 20.2.24) to the Sensor (PL 20.2.17). Install the Horizontal Transport Rear Cover 6-716 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 385: Fig 6-4 Bracket Assembly
RRP 6-4 Horizontal Transport Bracket Assembly (PL 20.2) S4525-424 Fig 6-4 Bracket Assembly Removal Remove the Horizontal Transport Rear Cover Unplug the connector (P/J260) of the Horizontal Transport Harness Assembly (PL 20.2.24) from the Sensor (PL 20.2.17). Remove the Pulley 2, Tension Spring, Sensor and Ground Wire (RRP 6-2).
Page 386: Fig 6-5 Transport Gear Kit
RRP 6-6 Transport Gear Kit (PL 20.2) Figure 1 Figure 2 S4525-426 Fig 6-5 Transport Gear Kit 6-718 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 387 Removal Remove the Horizontal Transport Rear Cover Remove the (RRP 6-2). Pulley 2, Tension Spring, Sensor and Ground Wire Remove the In-Gate Solenoid Assembly (RRP 6-7) Remove two screws that secure the Idler Bracket (PL 20.2.28), and remove the Idler Bracket. Unhook the Spring (PL 20.2.7) from the Support Assembly Gear Idler HT (PL 20.2.5).
Page 388: Fig 6-6 In-Gate Solenoid Assembly
20.2.18) so that the shoulder faces toward the frame. Clamp the harness of the Solenoid Assembly at five places on the Bracket Assembly. Plug the connector (P/J 256M) of the Solenoid Assembly . Mount the Rear Cover 6-720 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 389: Fig 6-7 Cover Top, Horizontal Transport Assembly
RRP 6-8 Cover Top, Horizontal Transport Assembly (PL 20.3) S4525-428 Fig 6-7 Cover Top, Horizontal Transport Assembly Removal Insert a flat-tip screwdriver between the cover on the rear side of the Horizontal Transport and the Cover Assembly Open (PL 20.3.2), and deflect the cover on the rear side of the Horizontal Transport to release the pin on the rear side of the Cover Assembly Open from the pivot hole on the rear side of the Horizontal Transport.
Page 390: Fig 6-8 Transport Roller And Aligner Roller
RRP 6-9 Horizontal Transport Roller and Aligner Roller Kit (PL 20.3) S4525-429 Fig 6-8 Transport Roller and Aligner Roller 6-722 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 391 Removal Open Top cover Horizontal Transport and detach Cover Support. The procedure is the same for both rollers Note Remove the five screws that secure the Aligner Guide Assembly (PL 20.3.32) and remove the assembly. In the following steps, the procedure for removing the Transport Note Roller (PL 20.3.10) and Aligner Roller Kit (PL 20.3.99) is the same on both sides.
Page 392: Fig 6-9 H-Tra Input Path & Face Up Bin Full Sensors
Unplug the connector (P/J275M) of the Horizontal Transport Harness Assembly from the Sensor. Unhook theSensor at four places, and remove the Sensor from the bottom of the Horizontal Transport. Replacement Reverse the above procedure. 6-724 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 393: Rrp 6-12 H-Tra Cover Open Sensor And Exit Path Sensor (Pl 20.3)
RRP 6-12 H-Tra Cover Open Sensor and Exit Path Sensor (PL 20.3) Figure 1 Figure 2 S4525-432 Fig 6-10 Sensors Removal Open the top cover of the Horizontal Transport, remove the two screws and remove the Cover Sensor Path . (Figure1) Remove the screw that secures the Top Cover Sensor to the Horizontal Transport.
Page 394: Fig 6-11 Jogging Cover
Remove two screws that secure the Jogging Cover to the Finisher, lift and remove the Jogging Cover. Carefully lift the top of the jogging cover to disengage the Note aligning tabs from the Finisher Frame. Replacement Reverse the above procedure. 6-726 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 395: Fig 6-12 Top Cover, Front And Rear
RRP 6-16 Top Covers, Front (PL 20.4) and Rear (PL 20.5) S4525-436 Fig 6-12 Top Cover, Front and Rear Removal Remove the Jogging Cover (RRP 6-14). Loosen the two screws that secure the Front Top Cover and remove. Loosen the two screws that secure the Rear Top Cover and remove. Replacement Reverse the above procedure.
Page 396: Fig 6-13 Front Cover-Open Front Cover And Kit Stud Cover
RRP 6-17 Front (Stapler) Door (PL 20.4) Figure 1 Figure 2 Figure 3 S4525-437 Fig 6-13 Front Cover-Open Front Cover and Kit Stud Cover 6-728 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 397 Removal Remove the Jogging Cover (RRP 6-14). Open the Front Cover (PL 20.4.5), and remove three screws that secure the Front Cover (PL 20.4.6) to the Finisher. (Figure 1) Loosen the four screws that secure the Front Cover, and remove the Front Cover.
Page 398: Fig 6-14 Switch Cover Front
Plug the connector (S2-1) of the Harness DC (PL 20.16.12) to the Switch Cover Front. Mount the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Mount the Top Cover, Front (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-730 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 399: Fig 6-15 Latch Assembly And Switch Docking
RRP 6-19 Docking Latch and Interlock Switch (PL 20.4) S4525-439 Fig 6-15 Latch Assembly and Switch Docking Removal Remove the Jogging Cover (RRP 6-14). Remove the Top Cover, Front and the Rear Cover(RRP 6-16). Remove the Front Cover-Open, Front Cover and Kit Stud Cover (RRP 6-17). Remove the top screw and loosen the bottom screw that secure to the Finisher from the Down Inlet Bracket (PL 20.15.7), and move the Inlet Bracket together with the Inlet Bracket (PL 20.15.8) to access the lower screws.
Page 400: Fig 6-16 Rear Cover
Align the Rear Cover (PL 20.5.1) with the mounting position in the Finisher, and secure the Rear Cover with four screws. Mount the Front Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-732 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 401: Fig 6-17 Top Cover-Left
RRP 6-22 Top Cover-Left (PL 20.5) S4525-442 Fig 6-17 Top Cover-Left Removal Remove the Jogging Cover (RRP 6-14). Remove the Front Top Cover and Rear Top Cover (RRP 6-16). Loosen or remove the two screws that secure the Left Top Cover to the Finisher (PL 20.5.3) and remove the Left Top Cover.
Page 402: Fig 6-18 Top Center Cover Assembly
Align the Top Center Cover Assembly (PL 20.5.9) with the mounting position in the Finisher, and secure it with four screws. Mount the Front and Rear Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-734 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 403: Fig 6-19 Kit Bracket Assembly And Screw
RRP 6-24 Kit Bracket Assembly and Screw (PL 20.6) Figure 1 Figure 2 S4525-444 Fig 6-19 Kit Bracket Assembly and Screw Removal Place several-ply cardboards or newspapers on the floor, and carefully lay the Finisher on its left side. (Figure 1) Remove two Thumb Screw (PL 20.6.2) on the front side.
Page 404: Fig 6-20 Caster Assembly
20.6.3), and secure it with four screws. For the rear side, perform the above step in the same manner. Install the End Caps. Erect the Finisher carefully. Install the Horizontal Transport Assembly and Mounting Brackets. 6-736 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 405: Fig 6-21 Finisher Input Paper Path Sensor
RRP 6-29 Finisher Input Paper Path Sensor (PL 20.7) S4525-450 Fig 6-21 Finisher Input Paper Path Sensor Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Covers (RRP 6-16). Remove the Left Top Cover (RRP 6-22). Remove the Top Center Cover Assembly (RRP 6-23).
Page 406: Rrp 6-30 Finisher Exit Path Sensor (Pl 20.7)
Remove the two top screws on the top Center Cover and pivot open the Cover. Disconnect connector (P/J 4) from the Exit Path Sensor, then unhook the four latch hooks and remove the sensor. Replacement Reverse the above procedure. 6-738 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 407: Fig 6-23 Registration Roller Assembly
RRP 6-31 Registration Roller Assembly (PL 20.7) S4525-452 Fig 6-23 Registration Roller Assembly Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Top Center Cover Assembly (RRP 6-23). Remove the Front Cover-Open, Front Cover and Kit Stud Cover (RRP 6-17). Remove the Rear Cover (RRP 6-2).
Page 408: Rrp 6-32 Finisher Transport Roller (Pl 20.7)
Lift up the Inlet Roller and move it toward the front so that the leading end of the shaft on the side enters into the inside of the Finisher frame. Lifting up the shaft on the rear side of the Roller, pull it off. 6-740 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 409 Replacement Place shaft on the rear side of the Roller (PL 20.7.5) through the bearing on the rear side. Insert the shaft on the front side of the Transport Roller into the bearing on the front side of the Finisher, and secure it with the E-Ring (PL 20.7.12). Install the One-Way Gear on the rear of the Inlet Roller shaft with the shoulder toward the Frame and secure it with an E-Ring.
Page 410: Fig 6-25 Drive Assembly Kit
Finisher. Remove three screws that secure to the Finisher from the Drive Assembly, and remove the Drive Assembly together with the Flange, Gear (PL 20.7.19), Gear (PL 20.7.36). 6-742 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 411 Replacement Insert the Flange (PL 20.7.18) and Gear (PL 20.7.19) into the Finisher, and secure it with an E-ring. Insert the Gear (PL 20.7.36) into the shaft of the Roller Assembly-Registration (PL 20.7.4). Engage the belt on the right side of the Drive Assembly (PL 20.7.40) to the Gear (PL 20.7.36), and also engage the belt on the left side of the Drive Assembly to the Gear.
Page 412: Fig 6-26 Inlet Chute Assembly
Inlet Chute-Assembly. Remove two screws that secure to the Finisher from the Chute Assembly-Inlet. Pull the Chute Assembly-Inlet off the Finisher toward the left. Replacement Reverse the above procedure. 6-744 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 413: Fig 6-27 Invert Guide Kit
RRP 6-35 Invert Guide Kit (PL 20.7) S4525-456 Fig 6-27 Invert Guide Kit Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the screw that secures the Invert Guide Assembly (PL 20.7.26) and Spring (PL 20.7.30) on the rear side, and remove the Spring while unhooking the Spring from the notch of the Finisher frame.
Page 414 Mount the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Mount the Rear Cover (RRP 6-21). Mount the Front and Rear Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-746 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 415: Fig 6-28 Buffer Chute Kit
RRP 6-36 Buffer Chute Kit (PL 20.7) Right Front Front Side Rear Side Figure 1 Figure 2 S4525-457 Fig 6-28 Buffer Chute Kit Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17).
Page 416 Mount the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Mount the Rear Cover (RRP 6-21). Mount the Front and Rear Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-748 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 417: Fig 6-29 Transport (Main Feed) Motor Assembly
RRP 6-38 Transport (Main Feed) Motor Assembly (PL 20.7) S4525-459 Fig 6-29 Transport (Main Feed) Motor Assembly Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Unplug the connector (CN 1) of the Harness Motor (PL 20.16.13) from the Transport Motor Assembly (PL 20.7).
Page 418: Fig 6-30 Puncher Assembly
Plug the connector (CN 18) of the Harness Motor (PL 20.16.13) to the Clutch of the Puncher. Connect Sensor Harness, Path Sensor (RRP 6-41). Mount the Rear Cover (RRP 6-21). Mount the Front and Rear Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-750 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 419: Puncher Assembly, Cont'd
Puncher Assembly, cont’d Puncher Alignment S4525-650 Fig 6-31 Puncher Position Adjustment Dimensions Volume 6 / Finisher - RRPs 6-751...
Page 420 (2) and move the unit toward the front by the gap (Measured value - Criteria). Tighten the fixing screws (2). Run a test print using hole punch and remeasure. If out of specification, repeat steps 2-6 above until proper alignment is achieved. 6-752 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 421: Fig 6-32 Pinch Roller Pinch
RRP 6-40 Pinch Roller Kit (PL 20.8) FRONT S4525-461 Fig 6-32 Pinch Roller Pinch Removal Remove the Top Center Cover Assembly (RRP 6-22, RRP 6-23). Remove the screw that secures to the Finisher from the Pinch Roll, and remove the Pinch Roller. Loosen the bracket of the Pinch Roll, and remove the roller of the Pinch Roll.
Page 422: Rrp 6-41 Finisher Exit Path Sensor (Pl 20.8)
Plug the connector (P/J 2) of the Harness Sensor (PL 20.16.4) to the Sensor : Path. Mount the second Kit Roller Pinch (PL 20.8.98) from the rear side. (RRP 6-40) Close the Top Center Cover Assembly (PL 20.5.9). 6-754 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 423: Fig 6-34 Dust Guide Assembly
RRP 6-42 Dust Guide Assembly (PL 20.8) S4525-463 Fig 6-34 Dust Guide Assembly Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Open Top Center Cover. Remove Left-Cover Remove the Puncher (RRP 6-39).
Page 424: Fig 6-35 Dust Sensor Assembly
Plug the connector (P/J 18) of the Horizontal Transport Harness (PL 20.16.6) to the Sensor Dust Assembly. Mount the Rear Cover (RRP 6-21). Mount the Front and Rear Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-756 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 425: Fig 6-36 Inner Cover
RRP 6-45 Inner Cover (PL 20.8) S4525-466 Fig 6-36 Inner Cover Removal Open the Front Cover-Open (PL 20.4.5). Remove the Bottle Assembly-Dust. Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove two screws on the front side that secure to the Finisher from the Inner Cover.
Page 426: Fig 6-37 Bottle Sensor Kit
Pull off the Shaft (PL 20.8.11), and remove the Spring and Actuator. Unhook the Photo Sensor (PL 20.8.10) at three places, and remove the Photo Sensor (PL 20.8.10). Replacement Reverse the above procedure. 6-758 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 427: Fig 6-38 Motor Jogging Kit
RRP 6-47 Motor Jogging Kit (PL 20.8) Figure 1 Figure 2 S4525-468 Fig 6-38 Motor Jogging Kit Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Left Cover. Unplug the connector (CN 7) of the Motor Harness (PL 20.16.13) from the Stepping Motor (PL 20.9.3) (Front).
Page 428: Fig 6-39 Sensor: Jogger Home Position
Bracket (Rear) together with the Sensor (Rear). Unhook the Sensor (Rear) at three places, and remove the Sensor (Rear) from the Bracket (PL 20.9.5) (Rear). Replacement Reverse the above procedure. 6-760 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 429: Fig 6-40 Jogger Plate
RRP 6-49 Jogger Plate (PL 20.9) S4525-470 Fig 6-40 Jogger Plate Removal Remove the Lower-Tray. Remove the Jogging Cover (RRP 6-14). Remove the two screws that secure the Jogger-Plate (PL 20.9.9) (Front) to the Frame Assembly-Jogger (PL 20.9.1), and separate two brackets of the Jogger Frame Assembly that sandwich the Jogger-Plate (Front), then remove the Jogger-Plate (Front).
Page 430: Fig 6-41 Shift Assembly Kit
RRP 6-50 Shift Assembly Kit (PL 20.10) Figure 1 Figure 2 Figure 3 Figure 4 S4525-471 Fig 6-41 Shift Assembly Kit 6-762 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 431 Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Door and Cover Stud Kit (RRP 6-17). Remove the Kit Motor Jogging (RRP 6-47). Remove the Motor Assembly-MP4 (RRP 6-61).
Page 432: Fig 6-42 Shift Motor Kit
RRP 6-52 Shift Motor Kit (PL 20.10) S4525-473 Fig 6-42 Shift Motor Kit 6-764 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 433 Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Kit Motor Jogging (RRP 6-47). Remove Rear Cover. Remove Front Cover-Open, Front Cover and Cover Stud. Remove Paddle Shaft Assembly. Unplug the connector (P/J 5) of the Harness Exit (PL 20.16.9) from the Sensor : Exit Path (PL 20.11.7).
Page 434: Fig 6-43 Motor Assembly - Mp2
RRP 6-53 Compiler Tray Motor - MP2 (PL 20.10) S4525-474 Fig 6-43 Motor Assembly - MP2 6-766 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 435 Removal Remove the Jogging Cover (RRP 6-14). Remove the Top Cover, Rear (RRP 6-16). Remove the Rear Cover (RRP 6-21). Unclamp the harness of the Clamp in two places from the Motor Assembly (PL 20.10.17). Unplug the connector (CN 2) of the Harness Motor (PL 20.16.13) from the Motor Assembly-MP2 (PL 20.10.5).
Page 436: Fig 6-44 Exit Path Sensor
RRP 6-54 Compiler Exit Path Sensor (PL 20.11) S4525-475 Fig 6-44 Exit Path Sensor 6-768 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 437 Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the two shoulder screws and four screws securing the Left Cover and remove the Cover (PL 20.5.6) Tilt the Compiler Guide upward to access the Compiler Exit Path Sensor Bracket, remove the securing screw and Bracket.
Page 438: Fig 6-45 Compiler Roller And Roller Shaft
RRP 6-55 Compiler Roller and Shaft (PL 20.11) S4525-476 Fig 6-45 Compiler Roller and Roller Shaft 6-770 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 439 Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Left Cover. Remove the Exit Sensor (RRP 6-54). Remove the Safety Switch (RRP 6-57). Remove two screws that secure to the Shaft (PL 20.11.12) from the Support (PL 20.11.36), and remove the Support.
Page 440: Fig 6-46 Exit Roller Open/Close Home Position Sensor
RRP 6-56 Exit Roller Open/Close Home Position Sensor (PL 20.11) S4525-477 Fig 6-46 Exit Roller Open/Close Home Position Sensor 6-772 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 441 Removal Remove the Jogging Cover (RRP 6-14). Remove the Top Cover, Rear (RRP 6-16). Remove the Motor Assembly-MP2 (RRP 6-53). Unplug the connector (CN 4) of the Harness Motor (PL 20.16.13) from the Motor Assembly-MP4 (PL 20.11.29). Unplug the connector (P/J 6) of the Harness Sensor (PL 20.16.4) from the Sensor : Exit Roller Open/Close Home Position (PL 20.11.7).
Page 442: Fig 6-47 Exit Roller Safety Interlock Switch Assembly
Guide (PL 20.11.11) to secure it Plug the connector (CN 43) of the Harness Motor PL 20.16.13) to the Safety Switch Assembly. Mount the Sensor Assembly. Mount the Front and Rear Top Cover (RRP 6-16). 6-774 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 443: Fig 6-48 Front Gear Kit
RRP 6-58 Front Gear Kit (PL 20.11) S4525-479 Fig 6-48 Front Gear Kit Removal Remove the Jogging Cover (RRP 6-14). Remove the Top Cover, Front (RRP 6-16). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Unclamp the harness of the Clamp (PL 20.11.35). In the following procedure the bearing is not secure.
Page 444: Fig 6-49 Exit Motor
Plug the connector (CN 3) of the Harness Motor (PL 20.16.13) to the Motor. Mount the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Mount Harness to Harness Clamp. Mount the Top Cover, Front (RRP 6-16). 6-776 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 445: Fig 6-50 Rear Gear Kit
RRP 6-60 Rear Gear Kit (PL 20.11) Figure 1 Figure 2 S4525-481 Fig 6-50 Rear Gear Kit Removal Remove the Jogging Cover (RRP 6-14). Remove the Top Cover, Front (RRP 6-16). Remove MP-4 Motor Assembly RRP 6-61). In the following steps, removing the Lever (PL 20.11.26), Spring Note (PL 20.11.27) and Sector Gear (PL 20.11.28) allows the Pin (PL 20.11.25) inserted into the hole in the Shaft (PL 20.11.12) to be...
Page 446: Fig 6-51 Clamp Motor - Mp4
RRP 6-61 Clamp Motor - MP4 (PL 20.11) S4525-482 Fig 6-51 Clamp Motor - MP4 6-778 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 447 Removal Remove the Jogging Cover (RRP 6-14). Remove the Top Cover, Front (RRP 6-16). Unplug the connector (CN 4) of the Harness Motor (PL 20.16.13) from the Clamp Motor - MP4. Remove five screws that secure the Motor Assembly-MP4 to the Finisher, and remove the Motor Assembly-MP4 with the Sensor : Exit Roller Open/Close Home Position (PL 20.11.7).
Page 448: Rrp 6-62 Staple Stage, Stack Roller & Stapler No Paper Sensor (Pl 20.12)
Finisher, and remove two Spacer. In the following steps, do not detach the Bracket (PL 20.9.5) far Note away because the connector (P/J 13) of the No Paper Sensor Stapler is still connected. 6-780 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 449 Remove two Shoulder Screw on the rear side that secure the Staple Stage Assembly to the Finisher. Release the belt of the Staple Stage Assembly from the gear of the Stack Roller Shaft, and remove the Stack Roller Shaft from the Finisher Disconnect the connector (P/J 13) connector of the No Paper Sensor Stapler attached to the Staple Stage Assembly .
Page 450: Fig 6-53 Stack Arm Assembly And Stacker No Paper Sensor Lower
RRP 6-63 Stack Arm Assy and Stacker No Paper Sensor Lower (PL 20.12) S4525-484 Fig 6-53 Stack Arm Assembly and Stacker No Paper Sensor Lower 6-782 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 451 Removal Remove the Jogging Cover (RRP 6-14). Remove the Stacker Bin. Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the (RRP 6-81).
Page 452: Rrp 6-64 Stapler Base Assembly (Pl 20.13)
RRP 6-64 Stapler Base Assembly (PL 20.13) Left Left Figure 1 Figure 2 FRONT FRONT Figure 3 Figure 4 S4525-485 Fig 6-54 Stapler Assembly Rear Front Left Figure 5 S4525-486 Fig 6-55 Stapler Assembly (Cont’d) 6-784 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 453 Removal Remove the Laser Print (EP) Cartridge. Remove the Punch Dust Collection Bottle. Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the Stapler Assembly (RRP 6-65) Remove the Inner Cover (RRP 6-45).
Page 454: Fig 6-56 Stapler Head Assembly
Secure the Stapler Holder to the Stapler Assembly with two screws. Plug the connector (CN 10) of the Stapler Harness Assembly (PL 20.13.15) to the Stapler Assembly. Close the Cover-Open, Front (PL 20.4.5). 6-786 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 455: Fig 6-57 Traverse Motor Assembly
RRP 6-68 Traverse Motor Assembly (PL 20.13) Figure 1 Figure 2 S4525-490 Fig 6-57 Traverse Motor Assembly Removal Remove the Stapler Base Assembly (RRP 6-64). Remove two screws that secure the Damper (PL 20.13.3) to the large frame of the stapler, and remove the Damper together with the Gear (PL 20.13.4) and Motor Assembly-MP8 (PL 20.13.5).
Page 456: Fig 6-58 Motor Assembly-Swing
RRP 6-69 Swing Motor Assembly (PL 20.13) REAR Figure 1 Figure 2 S4525-491 Fig 6-58 Motor Assembly-Swing 6-788 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 457 Removal Remove the Stapler Base Assembly (RRP 6-64). Remove two screws and remove the Stapler Bottom Cover (PL 20.13.24). Unplug the connector (CN 9) of the Stapler Harness Assembly (PL 20.13.15) from theAssembly Swing Motor. Remove the screw that secures the Assembly Swing Motor and remove the Assembly Swing Motor.
Page 458: Fig 6-59 Sensor Swing Assembly
RRP 6-70 Stapler Swing Assembly Sensor (PL 20.13) Figure 1 Figure 2 Figure 3 S4525-492 Figure 4 Figure 5 S4525-493 Fig 6-59 Sensor Swing Assembly 6-790 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 459 Removal Remove the Stapler Base Assembly (RRP 6-64). Remove the Punch Dust Collection. Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the Stapler Assembly (RRP 6-65) Remove the Inner Cover (RRP 6-45).
Page 460: Fig 6-60 Stapler Home Postion Sensor
Unplug the connector (P/J 10) of the Stapler Harness Assembly (PL 20.13.15) from the Snesor (PL 20.13.16). Unhook the Snesor at three places, and remove it.(Figure 4) Replacement Reverse the above procedure. 6-792 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 461: Fig 6-61 Elevator Bearing Kit
RRP 6-74 Elevator Bearing Kit (PL 20.14) Figure 1 Figure 2 S4525-499 Fig 6-61 Elevator Bearing Kit Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the Stacker Bin.
Page 462: Fig 6-62 Elevator Belt Holder Assembly
RRP 6-75 Elevator Belt Holder Assembly (PL 20.14) S4525-500 Fig 6-62 Elevator Belt Holder Assembly 6-794 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 463 Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). In the following steps, the procedure on the front side is the same Note as on the rear side, and therefore the procedure on the front side only is described.
Page 464: Fig 6-63 Stacker Bin Height Sensors, Front And Rear
Align the Sensor Tray Height Front with the mounting position in the Finisher, and secure it with two screws. For the rear side, perform the above step in the same manner. Mount the Jogging Cover (RRP 6-14). 6-796 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 465: Fig 6-64 Upper Elevator Shaft Assembly
RRP 6-78 Upper Elevator Shaft Assembly (PL 20.14) S4525-503 Fig 6-64 Upper Elevator Shaft Assembly Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the Holder Assembly (RRP 6-75).
Page 466 Mount the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Mount the Rear Cover (RRP 6-21). Mount the Front and Rear Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-798 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 467: Fig 6-65 Lower Elevator Shaft Assembly
RRP 6-79 Lower Elevator Shaft Assembly (PL 20.14) S4525-504 Fig 6-65 Lower Elevator Shaft Assembly Removal Remove the Jogging Cover (RRP 6-14). Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the (RRP 6-81).
Page 468 Mount the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Mount the Rear Cover (RRP 6-21). Mount the Front and Rear Top Cover (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-800 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 469: Fig 6-66 Elevator Drive Assembly And Motor Assembly-Md11
RRP 6-80 Elevator Drive Assembly and Motor Assembly-MD11 (PL 20.14) S4525-505 Fig 6-66 Elevator Drive Assembly and Motor Assembly-MD11 Removal Remove the Jogging Cover (RRP 6-14). Remove the Stacker Bin. Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17).
Page 470: Fig 6-67 Finisher Right Cover
Remove four screws that secure the Stack Arm Assembly (PL 20.12.16) from the Right Cover. Remove the screw that secure the No Paper Sensor (PL 20.13.25) from the Right Cover. Remove the Right Cover from the Finisher. 6-802 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 471 Replacement Align the Right Cover with the mounting position on the Finisher. Secure the Right Cover to the No Paper Sensor with a screw. Secure the Right Cover to the Stack Arm Assembly with four screws. Secure the Right Cover to the Finisher with two screws. Secure the Right Cover to the Finisher with seven screws.
Page 472: Rrp 6-82 Encoder Assembly (Pl 20.14)
RRP 6-82 Encoder Assembly (PL 20.14) Figure 1 Figure 2 S4525-507 Fig 6-68 Encoder Assembly 6-804 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 473 Removal Remove the Jogging Cover (RRP 6-14). Remove the Stacker Bin. Remove the Front and Rear Top Cover (RRP 6-16). Remove the Rear Cover (RRP 6-21). Remove the Front Cover-Open Front Cover and Kit Stud Cover (RRP 6-17). Remove the Kit Bearing (RRP 6-74). Remove the Right Cover (RRP 6-81).
Page 474: Fig 6-69 Power Supply
RRP 6-83 Power Supply (PL 20.15) Figure 1 Figure 2 S4525-508 Fig 6-69 Power Supply 6-806 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 475 Removal Remove two screws that secure to the Finisher from the Cover Lower Left, and remove the Cover Lower Left. Remove two screws that secure the LVPS Cover Upper (PL 20.15.2) to the LVPS Cover Lower. Remove two screws that secure to the LVPS Cover Lower and remove. Remove the screw that secures the grounding wire of the Power Supply to the LVPS Cover Lower (Figure 2).
Page 476: Fig 6-70 Controller Main Board Assembly
Finisher, and secure them with four screws. Re-attach Transparent Shield. Mount the Rear Cover (RRP 6-21). Mount the Top Cover, Rear (RRP 6-16). Mount the Jogging Cover (RRP 6-14). 6-808 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 477: Finisher Fru Parts List
Finisher FRU Parts List Using the Parts List The numbers shown in each illustration correspond to the parts list number for that illustration. Throughout this manual, parts are identified by the prefix “PL”, followed by a number, a decimal point, and another number. For example, PL3.1.12 means the part is item 12 of parts list 3.1.
Page 478: Fig 6-1 Docking Cover Assembly
PL 20.1 Docking Cover Assembly S4525-401 Fig 6-1 Docking Cover Assembly 6-810 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 479 FRU List 6-20.1 Dock Part Number Description 802K18310 Cover Assembly, Dock Book II / Volume 6 -Finisher / FRU Parts Lists 6-811...
Page 480: Fig 6-2 Frame Transport, Rear
PL 20.2 Horizontal Transport Frame, Rear S4525-402 Fig 6-2 Frame Transport, Rear 6-812 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 481 FRU List 6-20.2 Horizontal Transport Frame, Rear Part Number Description Cover, Rear Bracket Assembly, Drive Gear, Idler Support Assembly, Gear Idler HT Gear, Idler L Spring, Gear Gear, Pulley 32/26 023E19530 Sync-Belt Pulley Bracket Assembly, Tension Pulley 2 809E29320 Spring, Tension Solenoid Assembly Link Assembly, Damper 059E96100...
Page 482: Fig 6-3 Frame Transport, Open
S4525-403 Fig 6-3 Frame Transport, Open FRU List 6-20.3 Horizontal Transport Frame, Open Part Number Description 802E27120 Top Cover, Horizontal Transport Assembly [with 2 & 5] Cover Assembly, Open Magnet 1.5 6-814 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 483 FRU List 6-20.3 Horizontal Transport Frame, Open Part Number Description Harness Plate, Photo Sensor Cover, Path Sensor Roller, Transport 830E67790 Support, LH Cover Bracket, Path Sensor 130E84450 Sensor Sensor, Cover Pulley, One-way Bearing Cover, Chute Bearing 130E84460 Sensor, Face Down Bin Full Bracket, Magnet Spring, Pinch Roller, Pinch...
Page 484: Fig 6-4 Docking Parts, Front Cover, Top Tray
PL 20.4 Docking Parts, Front Cover, Top Tray S4525-404 Fig 6-4 Docking Parts, Front Cover, Top Tray 6-816 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 485 FRU List 6-20.4 Docking Parts, Front Cover & Top Tray Part Number Description 802E22380 Cover, jogging 050E16830 Tray, lower 802E22360 Top Cover, front Stud Cover 802E17330 Cover-open,front 802E17320 Cover, front 110E99070 Switch, Cover Front 068K20830 Bracket Assembly 068K20840 Pin, Bracket 003K11850 Latch Assembly 110K11030...
Page 486: Fig 6-5 Top, Rear Cover
PL 20.5 Top, Rear Covers S4525-405 Fig 6-5 Top, Rear Cover 6-818 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 487 FRU List 6-20.5 Top, Rear Covers Part Number Description 802E17310 Cover, Rear 802E22350 Cover Top, Rear 802E22390 Cover Top, Left 802E22370 Cover Top, Center 802E22400 Cover Top, Right L-Cover Screw Book II / Volume 6 -Finisher / FRU Parts Lists 6-819...
Page 488: Fig 6-6 Frame
PL 20.6 Frame 97 (with 14 (Qty 1) and E-clip (Qty 1)) 98 (with 9 (Qty 4) and 10 (Qty 4)) S4525-409 Fig 6-6 Frame 6-820 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 489 FRU List 6-20.6 Frame Part Number Description Bracket Screw Frame Post 021E97410 Cap, End 017K92730 Caster Assembly Pin, Right Pin, Left Roller Screw Roller, small 011K96750 Lever Assembly 001E58910 Rail 600K85380 Kit, Bracket Assembly and Screw [with 1 & 2 (qty. Foot 600K87060 Kit, Foot [with 14 (qty.
Page 490 PL 20.7 Guide S4525-410 Fig 6-7 Guide FRU List 6-20.7 Guide Part Number Description Clamp 130E84480 Sensor Baffle, right 059K18100 Roller Assembly, Regi 059K18110 Roller, Transport Clamp 6-822 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 491 FRU List 6-20.7 Guide Part Number Description Bracket, Sensor Clamp Baffle, left 013E19030 Bearing Gear Flange Gear Spacer Gear 054K17910 Chute Assembly Inlet Guide Assembly, Invert Buffer Assembly, Chute Spring Screw Spring 003E53200 Knob Spring Spring Gear 127K32160 Motor Assembly, Transport Gear and Belt Assembly, Drive Assembly 059K19350...
Page 492: Fig 6-8 Puncher Assembly
PL 20.8 Puncher Assembly S4525-411 Fig 6-8 Puncher Assembly 6-824 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 493 FRU List 6-20.8 Puncher Assembly Part Number Description Non-Punch Assembly [with 2 (qty. 4) and 16 (qty. 4)] Puncher-2H [with 2 [with qty. 4) and 16 (qty. 4) (Option)] Puncher-3H [with 2 (qty. 4) and 16 (qty. 4) 022K61990 (Option)] Puncher-4H [with 2 (qty.
Page 494: Fig 6-9 Jogging Assembly
PL 20.9 Jogging Assembly & S4525-412 Fig 6-9 Jogging Assembly 6-826 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 495 FRU List 6-20.9 Jogging Assembly Part Number Description Frame Assembly, Jogger Damper Motor, Stepping 130E84470 Sensor Bracket Gear 001K73700 Jogging Assembly, [with 1~6, 13 & 14] Clamp 830E66010 Plate, Front Jogger 830E85410 Plate, Rear Jogger 600K85340 Kit, Jogging Motor [with 2, 3 and 6] Book II / Volume 6 -Finisher / FRU Parts Lists 6-827...
Page 496: Fig 6-10 Shift Assembly
PL 20.10 Shift Assembly S4525-413 Fig 6-10 Shift Assembly 6-828 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 497 FRU List 6-20.10 Shift Assembly Part Number Description Frame Assembly, Roller Shift Gear Damper Motor, MP5 127K31550 Motor Assembly, MP2 013E19150 Bearing 003E53190 Knob Gear 130E84470 Sensor Bearing Shaft Gear 007E66390 Gear, Rack Shift Roller 105K19250 Eliminator Guide, Pinch Roller Clamp 023E20190 Belt...
Page 498: Fig 6-11 Stacker Unit
PL 20.11 Stacker Unit S4525-414 Fig 6-11 Stacker Unit 6-830 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 499 FRU List 6-20.11 Stacker Unit Part Number Description 130E84470 Sensor Actuator Spring Guide, Compile Shaft 013E19030 Bearing Lever Spring Gear, Sector 127K31560 Clamp Motor Assembly, MP4 Pulley Belt Pulley/Gear Bearing Bracket Clamp Support Guide, Cam Roller, Compile Shaft, Roller 006K21500 Assembly, Paddle [with 41-43, 45-48] Shaft, Paddle Book II / Volume 6 -Finisher / FRU Parts Lists...
Page 500 Kit, Compile Guide [with 8~12, 37 (qty. 2), 38 (qty. 2) & 50~52 (qty. 3)] 600K86770 Kit, Paddle [with 43 (qty. 2) and 45 (qty. 2)] 600K86800 Kit, Front Gear [with 30~32] 600K86790 Kit, Rear Gear [with 25~28] 6-832 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 501 Blank Page Book II / Volume 6 -Finisher / FRU Parts Lists 6-833...
Page 502 PL 20.12 Stacker Bin S4525-415 Fig 6-12 Stacker Bin 6-834 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 503 FRU List 6-20.12 Stacker Bin Part Number Description 013E19150 Bearing 007E66860 Gear 059K19390 Roller Assembly, Paddle 059K18120 Compiler Tray 006K21760 Roller Shaft, Stack 127K32890 Motor 020E34820 Pulley Shoulder Screw Spacer 031K92880 Arm Assembly, Stack 130K61700 Sensor , Stapler No Paper Flange 130K61710 Tray, Lower No Paper Sensor...
Page 504 PL 20.13 Stapler Assembly S4525-416 Fig 6-13 Stapler Assembly 6-836 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 505 FRU List 6-20.13 Stapler Assembly Part Number Description 029K91960 Stapler Assembly 050K30281 Cartridge Assembly, Stapler Damper Gear Motor Assembly, MP8 127K31570 Motor Assembly, Swing 130K61410 Sensor Assembly, Swing Belt Cable, Flat [1D<>2D] 029K91980 Stapler Base Assembly [with 6~9, 15~19, 21, 23, 24 and 28~30] Stapler Harness [2D<>J10/J11/J12/CN9] 130E84470...
Page 506: Fig 6-14 Elevator Unit
PL 20.14 Elevator Unit S4525-417 Fig 6-14 Elevator Unit 6-838 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 507 FRU List 6-20.14 Elevator Unit Part Number Description Bearing Assembly Bracket, Front 023E20200 Belt Holder Spring 130K61420 Sensor, Tray Height Front Shaft, Upper Elevator Bearing Pulley Shaft, Lower Elevator Guide Bracket, Front Gear Bottom Cover, Front Bottom Cover, Rear Guide Bracket, Rear 127K32180 Drive Assembly, Elevator 127K31620...
Page 508: Fig 6-15 Finisher Main Power Board And Power Supply
PL 20.15 Finisher Main Board and Power Supply S4525-418 Fig 6-15 Finisher Main Power Board and Power Supply 6-840 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 509 FRU List 6-20.15 Finisher Main Board and Power Supply Part Number Description Cover, Upper LVPS (Low Voltage Power Supply) Cover Lower, LVPS 105K19010 Power Supply 160K70400 Board Assembly, Main 177E91420 Cable, I/F 177E91410 Cord, Power Bracket, Inlet Inlet Board, Chassis Wire Support Harness Assembly, Port [J11A/CN17<>CN31, 16A<>CN30]...
Page 510: Fig 6-16 Harness
PL 20.16 Harness S4525-419 Fig 6-16 Harness 6-842 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 511 FRU List 6-20.16 Harness Part Number Description Harness, No Paper Sensor Stapler (CN40<>J13] Harness, Encoder (CN39<>J15/J16/J17] Harness, Middle Stapler (9A<>J1D/CN40] Harness, Sensor (J10A/J12A<>J1/J2/J4/CN44/J7/J8/J9/J1C-R/CN Harness, Middle 1 (J11A<>J18/CN17/CN31] Harness, Horizontal Transport (J11A<>J18/CN17/CN31] Harness, Face Up (J18A<>J29/CN37/CN38] (Option] Harness, Exit (CN21<>J5] Harness, Docking (CN42<>J-S1-1] Harness, Middle 2 (J24<>CN29] Harness, DC (J1A/J2A/J7A/J19A<>J2P/J-S2-1/CN11/CN41/C...
Page 512 Blank Page 6-844 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 513: Plug / Jack Connectors
Plug / Jack Connectors Use the table and maps in this section to locate specific P/J connectors within the printer. To Finisher the location of a P/J: Locate the P/J connector number in the first column of the table. Locate the corresponding map and location number, such as M2-5, in the second column.
Page 514: Table 6-1 Plug/Jack Location Table
P/J10AA Main Board Assembly (PL 20.15.4) M5-20 Main Board Assembly (PL CN1 Transport Motor Assy (PL 20.7.37) 20.15.4) CN8 Motor Assy MP-8 (PL 20.13.5) CN17 to CN31 CN18 Puncher (PL 20.8.1) 6-846 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 515 Table 6-1 Plug/Jack Location Table (cont'd.) Connected to... Other end connected to... M3-5 Sensor (PL 20.11.7) P/J10AA Main Board Assembly (PL 20.15.4) M5-19 Main Board Assembly (PL CN6 Stepping Motor (PL 20.9.3) 20.15.4) CN7 Stepping Motor (PL 20.9.3) M3-2 Sensor (PL 20.11.7) P/J10AB Main Board Assembly (PL 20.15.4) M5-21...
Page 516 20.15.4) M1-5 Sensor (PL 20.3.19) P/J11AA Main Board Assembly (PL 20.15.4) M1-1 Sensor (PL 20.2.17) P/J11AA Main Board Assembly (PL 20.15.4) M1-2 Sensor (PL 20.3.29) P/J11AA Main Board Assembly (PL 20.15.4) 6-848 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 517 Table 6-1 Plug/Jack Location Table (cont'd.) Connected to... Other end connected to... M1-8 P263 Sensor (PL 20.3.13) P/J11AA Main Board Assembly (PL 20.15.4) P275M Sensor (PL 20.3.13) M1-4 Sensor (PL 20.3.13) P/J11AA Main Board Assembly (PL 20.15.4) M1-7 P259 Sensor (PL 20.3.19) P/J11AA Main Board Assembly (PL 20.15.4) P260 Sensor (PL 20.2.17)
Page 518 Stack Arm Assy (PL 20.12.16) P/J19A Board CHASSIS (PL 20.15.9) CN43 M3-4 Safety Switch Assy (PL P/J3A Board CHASSIS (PL 20.15.9) 20.11.50) CN44 M4-16 CN44 Sensor Harness P/J10AB Main Board Assembly (PL 20.15.4) 6-850 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 519: P/J Location Map 1
P/J Location Map 1 S4525-395 Fig 6-1 P/J Map 1 Volume 6 / Finisher 6-851...
Page 520: P/J Location Map 2
P/J Location Map 2 S4525-396 Fig 6-2 P/J Map 2 6-852 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 521: P/J Location Map 3
P/J Location Map 3 S4525-397 Fig 6-3 P/J Map 3 Volume 6 / Finisher 6-853...
Page 522: P/J Location Map 4
P/J Location Map 4 S4525-398 Fig 6-4 P/J Map 4 6-854 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 523: P/J Location Map 5
P/J Location Map 5 S4525-399 Fig 6-5 P/J Map 5 Volume 6 / Finisher 6-855...
Page 524 Blank Page 6-856 DocuPrint N4525 Network Laser Printer - Service Guide...
Page 525: Master Wiring Diagram
Master Wiring Diagram The wiring diagrams presented in this manual use the following circuit notations to describe components and signal paths within the printer. S4525-350 Fig 6-1 Volume 6 / Finisher 6-857...
Page 526: Fig 3-16 Exit Roller
PUNCH CLUTCH CN18 (PL20.8.1) SENSOR: H-TRA COVER (PL20.3.29) STACK ARM ASSY: SHIFT CLAMP MOTOR SOLENOID ASSEMBLY: CN41 (PL20.12.16) H-TRA GATE (PL20.2.14) SENSOR DUST: PUNCH DUST FULL P/J18 (PL20.8.8) S4525-351 Fig 6-2 6-858 DocuPrint N4525 Network Laser Printer - Service Guide...

Xerox DOCUPRINT N4525 Service Quick Reference Manual

Table of Contents

Contents - Removal and Replacement Procedures

Quick Links

Chapters

Troubleshooting

Related Manuals for Xerox DOCUPRINT N4525

Summary of Contents for Xerox DOCUPRINT N4525