Xerox Documate 3920 User Guide

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Replacing the Roller Assembly
The ADF Roller may wear out and is designed to be a user-replaceable part. Problems with documents 
feeding through the ADF is an indication that the roller may be wearing out. You should first clean the 
ADF following the instructions in the previous section Cleaning the Automatic Document Feeder on 
page 114. Excessive dust on the roller can make it appear worn and smooth to touch. You cannot 
determine if it is time to replace a roller if the roller hasn’t been cleaned first. The roller should last for 
approximately 200,000 pages scanned.
To replace the roller assembly:
1. Open the ADF cover. The roller assembly is located in the underside of the ADF cover.
2. Lift up the green lock flange to unlock the roller from the ADF cover.
Roller Assembly
Green lock flange 
						

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3. Carefully angle the roller out and away from the ADF cover. 
4. Discard the roller. It cannot be re-used nor repaired.
5. Insert the left end of the new roller assembly into the hole in the ADF cover. 
6. Angle the roller into the scanner.
7. Align the tab on the green lock flange with the slot in the ADF cover, then rotate the tab on the 
lock into the scanner.
8. Press down on the lock flange to lock the roller into the scanner.
9. Close the ADF cover when you are finished.
Slot for the 
roller assembly
Slot for the lock 
flange
Lock flange 
						

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Xerox DocuMate 3920 Scanner Specifications
Optical resolution600 dpi
Light sourceCold Cathode Fluorescent Lamp
Image sensorCCD
Bit depth24-bit color, 8-bit grayscale, 1-bit bitonal (black & white) 
Scan methodSingle-pass Flatbed with 3-pass Duplex ADF
ADF specifications
Maximum Item Size 8.5” x 14” (216 mm x 356 mm)
Minimum Item Size 5.8” x 8.3” (147 mm x 211 mm)
Scanning Speed 19 pages per minute / 14 images per minute @ 200 dpi in Black & White
Capacity
50 pages of 20lb printer paper (75 g/m
2)
Paper Thickness
16 lb ~ 28 lb (60g/m
2 ~ 105 g/m2) (0.002” ~ 0.006”)
Flatbed specifications
Maximum Item Size 8.5” x 11.69” (216 mm x 297 mm)
InterfaceHi-Speed USB 2.0, compatible with USB 1.1
Dimensions (W x H x D)18.9 x 8.07 x 18.7 inches (480 x 205 x 475 mm)
We igh t22.5 lbs (10.2 kgs)
Scanner rating24Vdc, 3.2A
Power consumption≤ 62 Watts (during operation)
≤ 30 Watts (on standby)
≤ 20 Watts (power save after 15 minutes without scanning, can be adjusted by software)
Power supplyDESK-TOP, IEC 320-C6, 3P, 100-240Vac, 24Vdc, 3.2A, 76.8W, HEG75-S240320-7L, HiTRON 
CLASS I, Efficiency Level:V, L=1980mm, DC JACK, 0~40°C, RoHS
Power cordUS—3P, 7A/125V, L=1800mm, 3C*18AWG, Black, PH8B2EDJF0A-05B, RoHS
EUR(CEE)—2P+G., BASE, 16A/250V, L=1800mm, 3C*0.75mm
2, Black, PG8B9CIJG0A-05B, RoHS
UK(BS/PSB)—3P, 3A/250V, L=1800mm, 3C*0.75mm
2, Black, PG8B9X3JG0A-05B, RoHS
USB cableUSB A(M)/B(M), 4P, L=1850mm, UL2725 #28AWG, CA1004020233510, transparent, with core, 
75°C, RoHS
Network connectionEthernet 10 BaseT / 100 Base TX auto-registration
COPY port interfaceUSB 2.0 
Phone cable2 conn.: 6P2C, L=1800mm, 26AWG, RoHS
LCD size800x480 pixels
Effective Area: 6 x 3.6 inches (152.4 x 91.44 mm)
LCD display7” color TFT LCD  
						

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Xerox DocuMate 3920 Parts List
Please use the following part names and numbers when ordering replacements for your Xerox 
DocuMate 3920 scanner. You can order the replacement parts from the Parts & Accessories page for 
your scanner at www.xeroxscanners.com, or contact the Customer Service department. Please refer to 
the technical support card, provided with the scanner, for the contact information, 
Part NamePart Number
Power Supply 37-0086-000
Power Cord
(North American Style)35-0223-000
Power Cord
(European Style)35-0104-000
Power Cord
(United Kingdom Style)35-0105-000
USB Cable 35-0118-000
Telephone Cord 35-0224-000
Roller Assembly 57-0128-000
ADF Pad Assembly 57-0129-000 
						

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AAppendix
This chapter includes:
•Safety Introduction on page 126
•EMC on page 127
•Operational Safety Information on page 128
•Electrical Information on page 129
•Emergency Power Off on page 130
•Maintenance Information on page 131
•Product Safety Certification on page 132
•Regulatory Information on page 133
•Compliance Information on page 134
•Illegal Copies on page 135
•EH&S Contact Information on page 138 
						

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Safety Introduction
Notices and Safety
Please read the following instructions carefully before operating the machine and refer to them as 
needed to ensure the continued safe operation of your machine.
Your Xerox product and supplies have been designed and tested to meet strict safety requirements. 
These include safety agency evaluation and certification, and compliance with electromagnetic 
regulations and established environmental standards. 
The safety and environment testing and performance of this product have been verified using Xerox 
materials only.
WARNING: Unauthorized alterations, which may include the addition of new functions or connection 
of external devices, may impact the product certification. Please contact your Xerox representative for 
more information. 
						

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EMC
This equipment has been tested and found to comply with the limits for a Class B digital device, 
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection 
against harmful interference in a residential installation. This equipment generates, uses, and can 
radiate radio frequency energy and, if not installed and used in accordance with the instruction 
manual, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this 
equipment does cause harmful interference to radio or television reception, which can be determined 
by turning the equipment off and on, the user is encouraged to try to correct the interference by one or 
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is 
connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 
(1) This device may not cause harmful interference, and (2) this device must accept any interference 
received, including interference that may cause undesired operation.
Changes and modifications to this equipment not specifically approved by Xerox may void the user’s 
authority to operate this equipment.
Shielded cables must be used with this equipment to maintain compliance with FCC regulations. 
						

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Operational Safety Information
Your Xerox equipment and supplies have been designed and tested to meet strict safety requirements. 
These include safety agency examination, approval, and compliance with established environmental 
standards.
To ensure the continued safe operation of your Xerox equipment, follow these safety guidelines at all 
times:
Do These
• Always follow all warnings and instructions that are marked on or supplied with the equipment.
• Before cleaning this product, unplug the product from the USB port. Always use materials 
specifically designated for this product, the use of other materials may result in poor performance 
and create a hazardous situation. Do not use aerosol cleaners, they may be explosive and 
flammable under certain conditions.
• Always exercise care when moving or relocating equipment. 
• Always locate the machine on a solid support surface that has adequate strength to support the 
weight of the machine.
• Always locate the machine in an area that has adequate ventilation and room for servicing.
• Always unplug this equipment from the electrical outlet before cleaning.
NOTE: Your Xerox machine is equipped with an energy saving device to conserve power when the 
machine is not in use. The machine may be left on continuously.
Do Not Do These
• Never use a ground adapter plug to connect the equipment to a power outlet that lacks a ground 
connection terminal.
• Never attempt any maintenance function that is not specifically described in this documentation.
• Never remove covers or guards that are fastened with screws. There are no operator serviceable 
areas within these covers.
• Never locate the machine near a radiator or any other heat source.
• Never override or “cheat” any of the electrical or mechanical interlock devices.
• Never place this equipment where people might step on or trip on the power cord. 
						

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Electrical Information
Warning - Electrical Safety Information
1. The power receptacle for the machine must meet the requirements stated on the data plate on 
the rear of the machine. If you are not sure that your electrical supply meets the requirements, 
please consult your local power company or an electrician for advice.
2. The socket outlet shall be installed near the equipment and shall be easily accessible.
3. Use the power cable that is supplied with your machine. Do not use an extension cord or remove 
or modify the power cord plug.
4. Plug the power cable directly into a correctly grounded electrical outlet. If you are not sure 
whether or not an outlet is correctly grounded, consult an electrician.
5. Do not use an adapter to connect any Xerox equipment to an electrical outlet that lacks a ground 
connection terminal.
6. Do not place this equipment where people might step or trip on the power cable.
7. Do not place objects on the power cable.
8. Do not override or disable electrical or mechanical interlock devices.
9. Do not push objects into slots or openings on the machine. Electrical shock or fire may result.
Electrical Supply
1. This product shall be operated from the type of electrical supply indicted on the 
product’s data plate label. If you are not sure that your electrical supply meets the 
requirements, please consult your local power company for advice.
2.WARNING: This equipment must be connected to a protective earth circuit. This equipment is 
supplied with a plug that has a protective earth pin. This plug will only fit into an earthed electrical 
outlet. This is a safety feature. If you are unable to insert the plug into the outlet, contact your 
electrician to replace the outlet.
3. Always connect equipment to a correctly grounded power outlet. If in doubt, have the outlet 
checked by a qualified electrician.
Disconnect Device
The power cable is the disconnect device for this equipment. It is attached to the back of the machine 
as a plug-in device. To remove all electrical power from the equipment, disconnect the power cable 
from the electrical outlet. 
						

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Emergency Power Off
If any of the following conditions occur, turn off the machine immediately and disconnect the power 
cable from the electrical outlet. Contact an authorized Xerox Service Representative to correct the 
problem:
• The equipment emits unusual odors or makes unusual noises.
• The power cable is damaged or frayed.
• A wall panel circuit breaker, fuse, or other safety device has been tripped.
• Liquid is spilled into the machine.
• The machine is exposed to water.
• Any part of the machine is damaged.