Fuji Xerox Docuprint 240a User manual

DocuPrint 240A/340A
Service Manual 1st Edition

 This service manual covers the following
models:
A4 monochrome laser printer manufactured
by Fuji Xerox Printing Systems Co. Ltd.
(FXPS)
DocuPrint 240A/340A
 Related:
No related manuals other than DocuPrint
240A/340A Service Manual (1st edition) /
Hard Copy (Section 7 & 9) are issued.
 Confidentiality:

This service manual is issued intending use
by maintenance service personnel authorized
by Fuji Xerox. Copying, transferring or
leasing this manual without prior consent by
Fuji Xerox is prohibited.

Whenever a page is eliminated because of
issuance of a replacement page containing
changes or modifications, burn it or take the
necessary action including cutting by a
shredder.
 Be careful of handling to avoid losing or
damaging the manual.
 Revision and Modification Information:
When design changes or revisions relating to
this service manual occur, overseas technical
information or overseas service bulletins may
be provided to cover them until such
changes are accommodated in an
appropriate updated version of this service
manual.
CAUTION
Important changes including revisions of spare
part numbers and adjustment specifications
must immediately be reflected on appropriate
pages of this service manual upon reception of
such information.
DocuPrint 240A/340A
Service Manual 1 st Edition Issued: January 2004
Edited by: Fuji Xerox Co., Ltd. CSSC TD&LC SDEC
KSP/R&D Business Park Bldg 6A7
Sakado 3-2-1, Takatsu-ku, Kawasaki-shi, Kanagawa-ken, 213-8501
TEL: [phone]
[XEROX] and [The Document Company] are registered trademarks
PRINTED in JAPAN
Material No.
SM-T3300005-0-01-0

Company
Name
Department
Tel No.
Name Employee
No.

Preface

Preface
Contents
Preface-1
Contents
1. Scope of this Document...........................................................2
2. How to Use This Manual ..........................................................2
2.1 ORGANIZATION OF THIS MANUAL ..................................................2
2.2 REVISION INFORMATION .........................................................4
3. Terms and Symbols ..............................................................5
4. Abbreviations ....................................................................6

Preface
2 How to Use This Manual
Preface-2
1. Scope of this Document
This document is intended to serve as the standard service manual for the DocuPrint
240A/340A.
・Service Manual Comment Sheet
If you have any comments or wish to suggest any corrections, or if you find any
typographical errors in this DocuPrint 240A/340A Service Manual, please fill out the
attached comment sheet and send it to TD&LC SDEC.
2. How to Use This Manual
This manual covers the standard service procedures for the DocuPrint 240A/340A.
Follow the instructions in Section 1 Service Summary to work efficiently when visiting
customer locations on service calls.
2.1 Organization of This Manual
・Hardware
This manual describes all technical information for DocuPrint 240A/340A.
・Sections
This manual consists of ten sections as follows:
SECTION 1 SERVICE SUMMARY
This section describes the general and service procedures for performing
maintenance service on the DocuPrint 240A/340A.
SECTION 2 TROUBLESHOOTING
This section describes the troubleshooting procedures for non-image-quality
problems for the DocuPrint 240A/340A. It also describes how to use the
machine's self-diagnostic modes/programs.
SECTION 3 IMAGE QUALITY TROUBLESHOOTING
This section describes the image quality troubleshooting procedures for the
DocuPrint 240A/340A.
SECTION 4 DISASSEMBLY and ASSEMBLY PROCEDURES and ADJUSTMENTS
This section describes procedures for the removal, reinstallation, adjustment, and
replacement of the DocuPrint 240A/340A components.
SECTION 5 PARTS LIST
This section lists spare parts for the DocuPrint DocuPrint 240A/340A.

Preface
2 How to Use This Manual
Preface-3
SECTION 6 GENERAL
This section provides the following general information on the DocuPrint
240A/340A.
6.1 Specifications
6.2 Tools/Service Consumables
6.3 Consumables
6.4 Installation
6.5 Software Related Information
6.5.1 Menu Tree (User Mode)
SECTION 7 WIRING DATA
This section provides the following information related to electrical wiring in the
DocuPrint 240A/340A.
7.1 P/J List
7.2 P/J Wiring Diagrams
SECTION 8 ACCESSORIES
This section provides information on the accessories and options unique to the
DocuPrint 240A/340A.
8.1 A4 Universal Tray Installation Guide
8.2 Duplex Unit Installation Guide
8.3 Offset Catch Tray Installation Guide
8.4 Rear Tray Installation Guide
8.5 Additional Hard Disk Installation Guide
8.6 PostScript Software Kit Installation Guide
8.7 Maintenance Kit Installation Guide
SECTION 9 BSD
This section contains the BSDs (Block Schematic Diagrams) for the DocuPrint
240A/340A.
zChain 1 Standby Power
zChain 2 Mode Selection
zChain 3 Machine Run Control
zChain 4 Start Print Power
zChain 6 Optics (ROS)
zChain 7 Paper Supplying
zChain 8 Paper Transportation
zChain 9 Xerographics
zChain 10 Fusing and Transportation
SECTION 10 MECHANICAL OUTLINE
This section describes the functions of the main components of the DocuPrint
240A/340A.

Preface
2 How to Use This Manual
Preface-4
2.2 Revision Information
This manual will be revised as described below. Revisions to or a revised edition of the
manual will be sent to all customer engineers every time they are released. This version
of the manual should be replaced with a revised one or a certain part should be replaced
with revisions for the information in this manual should be kept up-to-date.
Revision Process
・When the entire manual is revised, the publication number on the cover sheet will be
renewed from Revision 1 to Revision 2, Revision 3, etc.
・When this manual is partially revised, revisions will be sequentially indicated as
Revision A, Revision B, Revision C, etc. All revised pages will be marked accordingly
with "Revision A," "Revision B," "Revision C," and so on for revision status to be
clarified.
Revision Sidebar (Change Bar)
When any text, table, or figure has been revised or added, a revision sidebar will be
added to indicate where the revision or addition is made.
(Example)
If the same page is further revised by a subsequent revision, the revision sidebar(s)
associated with its previous one will be deleted.

Preface
3 Terms and Symbols
Preface-5
3. Terms and Symbols
This section describes the terms and symbols common to all the sections. Terms and
symbols unique to a specific section are described in the Preface to that section.
・The following describes the meanings of the symbols at the beginning of sections:
DANGER Indicates there will be an imminent hazard resulting in a death or
serious injury if what is stated is not strictly followed.
WARNING Indicates there will be a potential hazard resulting in a death or
serious injury if what is stated is not strictly followed.
CAUTION Indicates there will be a potential hazard resulting in an injury or
damage to the equipment alone if what is stated is not strictly followed.
INSTRUCTION Used to alert you to a procedure which, if not strictly followed,
could result in damage to the printer or equipment.
NOTE Used to draw your attention to a step, procedure and regulation.
REFERENCE Used to explain technical terms or provide supplementary
information.
PURPOSE Used to explain the purpose of an adjustment.
・REP : Refers you to an appropriate repair procedure.
・ADJ : Refers you to an appropriate adjustment procedure.
・ＰＬ : Refers you to an appropriate part on the list.
・Assy : Abbreviation of "Assembly"

Preface
4 Abbreviations
Preface-6
4. Abbreviations
This manual includes abbreviations unique to this manual, as well as general ones.
The following lists typical examples:
ADC Automatic Density Control AG Analog Ground
AUX. Auxiliary B/W Black and White
BCR Bias Charge Roll BTR Bias Transfer Roll
BUR Back Up Roll CART. Cartridge
CCW Counter Clock Wise CL. Clutch
CLN Cleaning (or Cleaner) CLK Clock
CR Charge Roll CRU Customer Replaceable Unit
CRUM CRU Monitor CW Clock Wise
DB Developing Bias DTS Detack Saw
EP Electro Photography FDR Feeder
FG Frame Ground FRU Field Replaceable Unit
Hex Hexadecimal I/F Interface
ID Image Density
(or Identification)
L/H Left Hand
L/P Low Paper LD Laser Diode
LEF Long Edge Feed MSI Multi Sheet Inserter
N/F Normal Force N/P No Paper
NVM Non Volatile Memory OPC Organic Photo Conductor
P/H Paper Handling PCDC Pixel Count Dispense
Control
PHD Printer Head Pixel Picture Cell
PPM Prints Per Minute PV Print Volume
PWB Printed Wiring Board R/H Right Hand
REGI. Registration ROS Raster Output Scanner
RTN Return SEF Short Edge Feed
SG Signal Ground SNR Sensor
SOL. Solenoid SOS Start Of Scan
SPI Scans Per Inch SYNC. Synchronous
T/A Take Away TC Toner Concentration
TEMP. Temperature TR Transfer
TRANS. Transport XERO. Xerographic