Minolta Magicolor 3100 Series User manual

The essentials of imaging
www.minolta-qms.com
magicolor® 3100 Series
1750051-001B
Service Manual

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Introduction

Introduction
v
1. Trademarks
The following are trademarks or registered trademarks of their respective owners. Other product names
mentioned in this manual may also be trademarks or registered trademarks of their respective owners.
Registered trademarks are registered in the United States Patent and Trademark Office; some trademarks
may also be registered in other countries. QMS, magicolor, and the MINOLTA-QMS logo are registered
trademarks of MINOLTA-QMS, Inc. Minolta is a trade-mark of Minolta Co., Ltd.
2. Copyright Notice
This manual is Copyrighted © 2001 by MINOLTA-QMS, Inc., One Magnum Pass, Mobile, AL 36618. All
Rights Reserved. This manual may not be copied in whole or in part, nor transferred to any other media or
language, without the express written permission of MINOLTA-QMS, Inc.

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Cautions for operation
1. Marks giving caution
Maintenance operations requiring special cautions or additional information to descriptions of this manual
are presented as "Warning", "Caution", or "Note", according to their nature.
If instructions are not observed, death or serious injury may be caused.
If instructions are not observed, injuries of workers or physical damages to assets
(including this laser printer) may result.
Particularly important essentials for procedures, steps, rules, and others.
Reference Incidental information to descriptions.
2. Related documents
▼ Instruction manuals (standard user manuals)
Describe operation and handling of this laser printer.
▼ Performance specifications
Describe in detail various specifications of this laser printer.
(In the event of discrepancy between this manual and the performance specifications, the performance
specifications shall take preference.)
▼ Spare parts list
Information on maintenance parts (spare parts) for this laser printer
3. Safety
To prevent possible accidents during maintenance operation, you should observe strictly the "Warning" and
"Caution" information in this manual.
Dangerous operations and operations out of range of this manual should be absolutely avoided.
Generally various processes not covered by this manual may be required in actual operation, which should
be performed carefully always giving attention to safety.
3.1 Power source
Keep the power supply off during maintenance operation to prevent electric shock, burns and other
damages. Keep the power plug disconnected during the maintenance operation.
If the power supply should be kept connected for measurement of voltage or other similar reasons,
sufficient care should be given to prevent electric shock, by following the procedures of this manual.

Introduction
vii
While the printer is ON, never touch live parts if not required absolutely.
Power is supplied to the power switch / inlet (LVPS ASSY) even while the printer is off.
Never touch its live components.
Do not touch live parts unless otherwise specified.

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3.2 Driving units
When servicing gears or other driving units, be sure to turn them OFF and plug off. Drive them manually
when required.
Never touch the gears or other driving units while the printer is running.
3.3 High-temperature units
When servicing high-temperature units (securing unit, etc.), be sure to turn them OFF to prevent burns,
injuries and other troubles, remove the power plug and start service processes after they have cooled down
enough.
Immediately after completion of operation, they are still hot. Start services after more
than 40 minutes.
3.4 Laser beams
•If your eyes are exposed to laser beams, you may lose your eyesight.
•Never open the cover if warning label for laser beams is attached there.
•Before disassembling and reassembling this laser printer, be sure to turn it OFF.
•When servicing this laser printer while it is running, be sure to follow the
procedures specified in this manual.
•You should understand the features of the laser beams which are capable of
having an injurious action on the human body, not to extend the danger over the
workers as well as other people around the printer.
Laser beams have features as follows:
•Frequencies are smaller in width than other beams (sun and electric bulbs) and
phases are uniform so that high monochromatic and convergence performance
can be obtained and thin beams of light can reach places at a long distance.
•Due to the high convergence, beams are concentrated in high density and high
temperature, which is dangerous to human body.
Reference: Laser beams of this laser printer is invisible rays which you cannot see.

Introduction
ix
3.5 Warning/caution labels
Warning labels and caution labels are attached to this laser printer to prevent accidents Check those labels
for their peeling or stain when servicing the printer.
3.5.1 Caution label for high-temperature units

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4. List of Abbreviations
ADC Automatic Density Control MPT Multipurpose Tray
AG Analog Ground MSI Multi Sheet Inserter
AUX Auxiliary N/F Normal Force
B/W Blank and White NP No Paper
BCR Bias Charge Roller NVM Non Volatile Memory
BTR Bias Transfer Roller (Image Transfer Roller) OPC Organic Photo Conductor
BUR Back Up Roller P/H Paper Handling
C Cyan PCDC Pixel Count Dispense Control
CART Cartridge PHD Printer Head (Imaging Cartridge)
CCW Counterclockwise Pixel Picture Cell (Picture Element)
CL Clutch PPM Prints per Minute
CLN Cleaning (or Cleaner) PV Print Volume
CLK Clock PWB Printed Wiring Board
CR Charge Roller R/H Right Hand
CRU Customer Replaceable Unit REGI Registration
CRUM CRU Monitor ROS Raster Output Scanner
CW Clockwise RTN Return
DB Developing Bias SEF Short Edge Feed
DTS Detack Saw SG Signal Ground
EP Electrophotography SNR Sensor
FDR Feeder SOL Solenoid
FG Frame Ground SOS Start of Scan
FRU Field Replaceable Unit SPI Scans per Inch
Hex Hexadecimal SYNC Synchronous
I/F Interface T/A Take Away
IDT Intermediate Drum Transfer TC Toner Concentration
ID Image Density (or Identification) TEMP Temperature
KBlackTRTransfer
L/H Left Hand TRANS Transport
L/P Low Paper WDD Wide Range Dynamic Damper
LD Laser Diode XERO Xerographic
LEF Long Edge Feed Y Yellow
M Magenta