Fujitsu Fi-4750c - Color Duplex Document Scanner 50ppm 90ipm... Configuration guide

C150-E183-01EN
fi-4750C Image Scanner
Cleaning and Maintenance

i
Revisions, Disclaimers
Revisions
FCC declaration: 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.
Theselimitsaredesignedtoprovidereasonableprotectionagainstharmful
interferencein a residentialinstallation. This equipmentgenerates, 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 communi-
cations. 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:
• Reorientorrelocatethereceivingantenna.
• Increasetheseparationbetweentheequipmentandreceiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
• Consultthedealeroranexperiencedradio/TVtechnicianforhelp.
FCC warning: Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment.
Edition Date published Revised contents
01 October, 2000 First edition
Specification No. C150-E183-01EN

ii
NOTE
• The use of a non-shielded interface cable with the referenced device is
prohibited. The length of the parallel interface cable must be 3 meters (10
feet) or less. The length of the serial interface cable must be 15 meters (50
feet) or less.
• The length of the power cord must be 3 meters (10 feet) or less.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du
Canada.
As an ENERGYSTAR ®Partner, Fujitsu Limited declares that this scanner meets
the ENERGYSTAR ®guidelines for energy efficiency. ENERGYSTAR ® is a U. S.
registeredmark.
Changes
The contents of this manual may be revised without prior notice.
FUJITSU reserves the right to make changes to any products herein, to im-
prove reliability, function, or design, without further notice and without obliga-
tion.
Copyrights
All Rights Reserved, Copyright © 2000, FUJITSU LIMITED.
PrintedinJapan.
No part of this manual may be reproduced in any form without permission.

iii
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iv
Note, Liability
READ ALL OF THIS MANUAL CAREFULLY BEFORE USING THIS PROD-
UCT. IF NOT USED CORRECTLY, UNEXPECTED INJURY MAY BE
CAUSED TO USERS OR BYSTANDERS.
While all efforts have been made to ensure the accuracy of all information in
this manual, FUJITSU assumes no liability to any party for any damage caused
by errors or omissions or by statements of any kind in this manual, its updates
or supplements, whether such errors are omissions or statements resulting from
negligence, accidents, or any other cause. FUJITSU further assumes no
liability arising from the application or use of any product or system described
herein; nor any liability for incidental or consequential damages arising from the
use of this manual. FUJITSU disclaims all warranties regarding the information
containedherein,whetherexpressed,implied, orstatutory.

v
Preface
This manual explains how to clean and maintain the fi-4750C image scanner.
The fi-4750C is a highly functional color image scanner developed for volume
filing, using charge-coupled device (CCD) color image sensors. This scanner
features duplex scanning and high quality color image processing with an
automaticdocumentfeeder(ADF).
Referto the Operator’sGuide for basicinformation about thefi-4750C.

vi
Conventions
Important information that requires special attention is indicated as follows:
WARNING
WARNING indicates that serious personal injury may result if you do not follow
aprocedurecorrectly.
CAUTION
CAUTION indicates that minor personal injury, loss of data, or damage to the
scanner may result if you do not follow a procedure correctly.
Official Fujitsu part names are indicated with an initial capital letter, as in the
partname“Pickroller”.
NOTE
A NOTE provides “how-to” tips or suggestions to help you perform a procedure
correctly.

vii
CONTENTS
CHAPTER1 DESCRIPTION ............................................................... 1-1
Units ............................................................................... 1-2
Assemblies..................................................................... 1-4
OperatorPanel................................................................ 1-5
PanelDisplay.................................................................. 1-6
CHAPTER2 CLEANING ..................................................................... 2-1
CleaningSuppliesandAreaRequiringCleaning.............. 2-2
Supplies .................................................................... 2-2
AreasRequiringCleaning.......................................... 2-3
CleaningtheADF............................................................ 2-4
CleaningtheFlatbed ..................................................... 2-10
CHAPTER3 REPLACEMENTOFPARTS .......................................... 3-1
Pad Assembly ................................................................ 3-2
Pick Roller ...................................................................... 3-4
CHAPTER4 TROUBLESHOOTING .................................................... 4-1
ClearingPaperJams....................................................... 4-2
Initial Checks .................................................................. 4-3
ProblemChecklist......................................................... 4-20

DESCRIPTION
CHAPTER 1
DESCRIPTION
CHAPTER
2
CLEANING
CHAPTER 3
REPLACEMENT OF PARTS
CHAPTER 4
TROUBLESHOOTING
DESCRIPTIONCLEANINGREPLACEMENT
OF PARTS
TROUBLESHOOTING

CHAPTER
DESCRIPTION
Thischapterdescribesunits,assemblies,indicatorsandLED
functions.
Units
Assemblies
Operator Panel
Panel Display
1
1-1

1-2
Units
Document holding pad
7
Document cover
6
ADF paper chute
3
ADF
lever
2
ADF
1
Stacker
5
Power inlet
11
Third party slot
9
Power switch
12
Documentbed
8
Oparatorpanel
4
Interfaceconnector
10

1-3
DESCRIPTION
NoFunction
Automatically feeds documents to the reading position.
Opens/closes ADF to enable the removal of jammed documents.
Holds the documents to be fed by ADF.
Displays the status of the scanner. Also displays buttons that enable the
operator to change settings in Feed mode, Manual Feed mode, and Setup
mode.
Stacks the read documents.
Covers the document to be read.
Presses the document to the Document bed.
Holds the document to be read. Also called Flatbed (FB).
Third party slot.
Connects to the host system with interface cables.
Connect the power cable from an AC power outlet here.
Power switch.
1
2
3
4
5
6
7
8
9
10
11
12

1-4
Thumb screw
Guide A ASY
Pick roller 2
Pick roller 1
Pad ASY
Stacker
Assemblies

1-5
DESCRIPTION
Exit
Enter
Stop
Previous
Next
Send To/
Start Read
Check
Operator panel
Operator panel
The Operator panel is located on the
upper right hand side of the scanner.
The panel consists of an LCD (16
characters x 2 lines), LEDs, and
buttons.
Arrangement

1-6
Panel Display
Button/LED Function
Name of the button and
LED Function
Button Next Displays the next LCD screen.
Previous Displays the previous LCD screen.
Moves the cursor (blinking part) to the left
Moves the cursor (blinking part) to the right
Exit When you are entering settings on the Operator panel, pressing this button
returns you immediately to the Scanner Ready screen.
Enter Enters the parameter currently selected by the cursor.
Send To
Start Starts the reading. while Manual start mode is set or the Read lamp lights when the video interface option is used. Some application software packages
might use this button.
Stop When the Check LED lights, pressing this button releases the error status
(turns off Check and returns to the Scanner Ready screen). Stops the reading
while reading when the video interface option is used. Also turns off the Check
lamp.
LED Indicates the scanner is ON.
Read Indicates the scanner is reading or ready to read.
Check If lit, indicates an alarm occurred. Pressing the Stop button turns the Check
lamp off.
If it blinks at one second intervals, this indicates a jam or double feed has been
detected. If the problem is jammed paper, removing paper turns off the Check
lamp. If the problem is double feed, pressing the Stop button turns off the
Check lamp.
If it blinks at four second intervals, this indicates cleaning the ADF is
necessary.

1-7
DESCRIPTION
Counter Display
The scanner is provided with a
counter display.
NOTE
When the counter value is 0, no number is displayed.
Abrasion counter
Paper counter
Counter Function
Paper counter When the
button is pressed The paper counter counts the number of scanned sheets from the start of reading until Paper Empty or until an
error is detected. The counter is automatically reset at
the start of reading. The counter is used for checking
the number of sheets scanned at one time.
When the
button is pressed This counter increments each time a document is scanned. The counter is not initialized until the power is
turned off. The counter can be used, for example, for
checking the number of sheets that have been scanned
in one day.
Abrasion counter Abrasion counter counts the accumulated number of the scanned sheet. This
counter increments at every 10 sheets. This counter is useful to check the
cleaning cycle or parts replacement cycle. How to reset is described in
Chapter 6.

1-8
Panel Display
Operation status
The operation status is indicated by the following messages:
<Power-on>
<Reading>
<LowPowerMode> When the Scanner Display turns Off and the power indicator
remains “On”, the scanner is in the Low Power Mode.
NOTE
One of the following will wake up the scanner:
• Pressing any button.
• Setting the paper on the ADF.
• Sending a command from the host computer.
<Waiting for Start> The scanner displays the following screen when waiting for the
Start button to be pressed:
(OnlyWhen the Video Interface
Option is installed.)
<Cleaningrequest> When the Pick roller cleaning is necessary, the scanner displays
thefollowing on theupper line:
When the ADF glass cleaning is necessary, the scanner displays
the following on the LCD:
Clean the Pick roller or the ADF glass in accordance with the
instructions given in chapter 2, Cleaning the ADF, and chapter 3,
Pick Roller.

1-9
DESCRIPTION
Temporary error
<Hopperempty>
This message is displayed if there is no more paper on the ADF
paper chute during a read operation in ADF mode. Fill the ADF
paperchutewithpaper.Toenablethereadoperation,press the
stop button.
<Jam>
This message is displayed if a document is jammed in the ADF.
SeeChapter4forremovingjammedducuments.
<ADF cover open>
This message is displayed if the ADF is not closed completely.
Closethe ADF completely,and enable theread operation.
<Doublefeederror>
This message is displayed when the ADF detects a Double feed
error. Check the document and re-scan it.

1-10
Alarm
One of the following messages is displayed if an error occurs in the scanner. If one of the following
error messages is displayed, turn the power Off and then On again. If the same message is displayed,
contactyour service representative.
<Opticalalarm front>
<Optical alarm back>
<FB mechanism alarm>
NOTE
When the total number of sheets scanned by the ADF is less than 100, the message above and the
message below are displayed alternately. Remove the bracket (Shipping Lock) that holds the carrier
in place.

1-11
DESCRIPTION
<Motor fuse alarm>
<Lampfuse alarm>
<Imagetransferalarm>
<Memoryalarm>
<EEPROMalarm>
<FAN alarm>
<SCSI fuse alarm>
NOTE
When this message is displayed, turn Off system power and then turn it On again. Alternatively,
replace the current cable with one recommended by the manufacturer of the SCSI board. When the
cause of the alarm has been corrected, the scanner automatically resumes operation once power is
turnedOnagain.