Dell Colour Laser Printer 3110cn User manual

Dell 3110cn
Service Manual
17 Jan 2008

Information in this document is subject to change without notice.
2010 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc.is strictly forbidden.
Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.
Other trademarks and trade names may be used in this document to refer to the entities claiming the marks and
names of their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than
its own.

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Cautions
Operation contents of this document may be subject to modification without notice.
This document is protected by copyright. Do not photocopy or duplicate any part of this document in
Dell Inc. will not assume responsibility for accidental or incidental damages resulting from technical
or editorial errors or omissions in this manual, the issue of this manual, the execution of descriptions
in this manual, or the use of this manual.
any form without written permission from Dell Inc.

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1. About this manual
2. Marks giving caution
Maintenance operations requiring special cautions or additional information regarding descriptions in
this manual are presented as "Warning," "Caution," or "Note," depending on their nature.
If instructions are not observed, death or serious injury may result.
If instructions are not observed, injuries to workers or physical damage to assets
(including this laser printer) may result.
Essentials for procedures, steps, rules, and others.
Reference Incidental information to descriptions.
3. Related documents
-Instruction manuals (standard manuals)
Describe the operation and handling of this laser printer.
-Performance specifications
Describe in detail various specifications of this laser printer.
(In the event of a discrepancy between this manual and the performance specifications, the
performance specifications take precedence.)
-Spare parts list
Information on maintenance parts (spare parts) for this laser printer.
This manual is a standard service manual of Dell Inc. containing information required for maintenance
of this laser printer (standard specifications).

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4. Safety
To prevent possible accidents during maintenance operation, you should observe strictly the "Warning"
and "Caution" information in this manual.
Avoid dangerous operations and operations out of the scope of this manual.
Various processes not covered by this manual may be required in actual operations, and should be
performed carefully, always giving attention to safety.
4.1 Power source
Keep the power plug disconnected during the maintenance operation to prevent electric shock, burns
and other damages.
If the power supply should be kept connected to measure voltage or for other similar reasons, take
sufficient care to prevent electric shock, by following the procedures in this manual.
While the printer is on, never touch live parts if not required.
Power is supplied to the power switch / inlet even while the printer is off. Never
touch its live components.
Do not touch live parts unless otherwise specified.
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4.2 Driving units
When servicing gears or other driving units, be sure to turn off the power switch and unplug the power
cord. Drive them manually when required.
Do not do the print work removing the cover of the printer to confirm the operation
of driving part.
4.3 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 sufficiently.
Because high-temperature units are still hot after they complete an operation, wait
at least 40 minutes before starting maintenance service.

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4.4 Laser beams
• If your eyes are exposed to laser beams, you may lose your eyesight.
• Never open the cover if the 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 be well aware that the laser beams are capable of injuring you and
other people near 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.
• Being highly converged, the laser beams exert a heating action that may be
harmful to human body.
Reference: The laser beams of this laser printer are invisible rays.
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PRINT HEAD

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4.5 Warning/caution labels
Warning labels and caution labels are attached to this laser printer to prevent accidents Check those
labels for their peeling or stains when servicing the printer.
4.5.1 Caution label for high-temperature units
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4.5.2 Caution label for toner cartridges
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