Panasonic Kx Fb421 Flatbed Plain Paper Fax Operating Instructions

							Caller IQ Feature
81For assistance, please call openLCR: 1-866-openLCR (1-866-673-6527)
Updating the rate table 
(downloading the rate table)
If you register through openLCR web site or 
move to another area, you have to download the 
rate table manually.
1Press {
{{ {
CALLER IQ}
}} }.
CALLER IQ
PRESS NAVI.[( )]
2Press {
{{ {<
> >}
}} } until the following is 
displayed or press {
{{ {
2}
}} }.
NEW RATE TABLE
PRESS SET
3Press {
{{ {
SET}
}} }.
DOWNLOAD IN
PROCESS.
LThe fax machine will automatically 
receive the rate table.
During download
LThe CALLER IQ indicator will flash and the 
display will show the following.
DOWNLOAD IN
PROCESS.
LDuring downloading, you cannot do other 
operations such as making/answering a call 
or sending/receiving a document.
LDepending on where you live, the call for 
downloading may be a long distance call and 
will take about 1-2 minutes. You will be 
charged for the cost of the call.
LWhen the download is completed, the 
CALLER IQ indicator will stop flashing but will 
remain lit up and the display will show the 
following:
DOWNLOAD OK!
LIf the display shows the following, the unit 
was unable to download from openLCR.
DOWNLOAD ERROR.
TRY AGAIN.
Try downloading manually again.
LIf the display shows the following, the Caller 
IQ feature is set to off.
SET LCR TO ON
Set the Caller IQ feature to on by referring to 
page 80.
Automatic download
The fax machine will automatically download the 
latest rate table when:
–the rate table in the fax machine reaches 
expiry date; usually between 60-90 days after 
last update,
–the fax machine is being polled by openLCR 
service center, or
–you set the Caller IQ feature from OFF to ON 
(page 80).
To stop downloading
1.Press {
{{ {
STOP}
}} }.
CANCEL DOWNLOAD?
YES:SET/NO:STOP
2.Press {
{{ {
SET}
}} }.
{SET}
{STOP}
{}
FLASH/LIGHT 
						

							Caller IQ Feature
82For assistance, please call openLCR: 1-866-openLCR (1-866-673-6527)
Downloading the fax system 
setup and telephone directory 
entries (downloading from 
web)
If you access openLCR web site at 
www.openLCR.com and program the system 
setup and telephone directory, you will need to 
download this data to the fax machine.
1Press {
{{ {
CALLER IQ}
}} }.
CALLER IQ
PRESS NAVI.[( )]
2Press {
{{ {<
> >}
}} } until the following is 
displayed or press {
{{ {
3}
}} }.
DATA FROM WEB
PRESS SET
3Press {
{{ {
SET}
}} }.
DOWNLOAD IN
PROCESS.
u
DOWNLOAD OK!
{CALLER IQ}
{SET}
{} 
						

							Specifications
83
Specifications
Technical data about this product
*1 Transmission speed depends upon the contents of the pages, resolution, telephone line conditions 
and capability of the other party’s machine.
*2 Transmission speed is based upon the ITU-T No. 1 Test Chart and original mode. If the capability of 
the other party’s machine is inferior to your unit, the transmission time may be longer. Applicable lines:Public Switched Telephone Network
Document size:Max. 216 mm (8
1/2) in width, Max. 600 mm (235/8) in length
Effective scanning width:208 mm (83/16)
Effective printing width:208 mm (83/16)
Transmission time*1:Approx. 15 s/page (Original mode)*2
Scanning density:Horizontal: 8 pels/mm (203 pels/inch)
Vertical: 3.85 lines/mm (98 lines/inch) – in standard resolution,
7.7 lines/mm (196 lines/inch) – in fine/photo resolution,
15.4 lines/mm (392 lines/inch) –in super fine resolution
Photo resolution:64-level
Scanner type:Contact Image Sensor
Printer type:Thermal Transfer on plain paper
Data compression system:Modified Huffman (MH), Modified READ (MR)
Modem speed:9,600 / 7,200 / 4,800 / 2,400 bps; Automatic Fallback
Operating environment:5 °C–35 °C (41 °F–95 °F), 20%–80% RH (Relative Humidity)
Dimensions:Approx. height 210 mm × width 472 mm × depth 446 mm (8
1/4 × 1819/32 
× 179/16)
Mass (Weight):Approx. 7.4 kg (16.3 lb.)
Power consumption:Standby: Approx. 4.0 W
Transmission: Approx. 18 W
Reception: Approx. 35 W (When receiving a 20% black document)
Copy: Approx. 60 W (When copying a 20% black document)
Maximum: Approx. 145 W (When copying a 100% black document)
Power supply:120 V AC, 60 Hz
Fax memory capacity:Approx. 25 pages of memory transmission
Approx. 28 pages of memory reception
(Based on the ITU-T No. 1 Test Chart in standard resolution.)
ITU-T No. 1 Test Chart 
						

							Specifications
84
Paper specifications
Note for recording paper:
LDo not use the following types of paper:
–Paper with a cotton and/or fibre content that is over 20%, such as letterhead paper or paper used 
for resumes
–Extremely smooth or shiny paper, or paper that is highly textured
–Coated, damaged or wrinkled paper
–Paper with irregularities, such as tabs or staples
–Paper which has dust, lint or oil stains
–Paper that will melt, vaporize, discolour, scorch or emit dangerous fumes, near 200 °C (392 °F), 
such as vellum paper. These materials may transfer onto the fusing roller and cause damage.
–Moist paper
LSome paper only accepts print on one side. Try using the other side of the paper if you are not happy 
with the print quality or if misfeeding occurs.
LFor proper feeding and best print quality, we recommend using long-grained paper.
LDo not use paper of different types or thickness at the same time. This may cause a paper jam.
LAvoid double-sided printing.
LDo not use paper printed from this unit for double-sided printing with other copiers or printers. This 
may cause a paper jam.
LTo avoid curling, do not open paper packs until you are ready to use the paper. Store unused paper 
in the original packaging, in a cool and dry location.
Note:
LAny details given in these instructions are subject to change without notice.
LThe pictures and illustrations in these instructions may vary slightly from the actual product. Recording paper size: Letter: 216 mm × 279 mm (8
1/2 × 11)
Legal: 216 mm × 356 mm (81/2 × 14)
A4: 210 mm × 297 mm (81/4 × 1111/16) 
						

							FCC Information
85
FCC Information
List of FCC requirements and information
If required by the telephone company, inform them 
of the following.
FCC Registration No.:
(found on the rear of the unit)
Ringer Equivalence No.: 
(found on the rear of the unit)
The particular telephone line to which the 
equipment is connected.
This unit must not be connected to a coin operated 
line. If you are on a party line, check with your local 
telephone company.
Ringer Equivalence Number (REN):
This REN is useful in determining the quantity of 
devices you may connect to your telephone line 
and still have all of those devices ring when your 
telephone number is called. In most but not all 
areas, the sum of the REN’s of all devices 
connected to one line should not exceed five (5.0). 
To be certain of the number of devices you may 
connect to your line, as determined by the REN, 
you should contact your local telephone company 
to determine the maximum REN for your calling 
area.
In the event that terminal equipment causes harm 
to the telephone network, the telephone company 
should notify the customer, if possible, that service 
may be stopped. However, where prior notice is 
impractical, the company may temporarily cease 
service providing that they:
a) Promptly notify the customer.
b) Give the customer an opportunity to correct the 
problem with their equipment.
c) Inform the customer of the right to bring a 
complaint to the Federal Communication 
Commission pursuant to procedures set out in 
FCC Rules and Regulations Subpart E of Part 68.
The Telephone Company may make changes in its 
communications facilities, equipment operations, 
or procedures where such action is reasonably 
required in the operation of its business and is not 
inconsistent with the rules and regulations in FCC 
Part 68. If such changes can be reasonably 
expected to render any customer terminal 
equipment incompatible with telephone company 
communications facilities, or require modification or 
alteration of such terminal equipment, or otherwise 
materially affect its use or performance, the 
customer shall be given adequate notice in writing, 
to allow the customer an opportunity to maintain 
uninterrupted service. 
CAUTION:
Any changes or modifications not expressly 
approved by the party responsible for compliance 
could void the user’s authority to operate this 
device.When programming emergency numbers and/or 
making test calls to emergency numbers:
1. Remain on the line and briefly explain to the 
dispatcher the reason for the call before hanging 
up.
2. Perform such activities in the off-peak hours; 
such as early morning or late evenings.
This telephone provides magnetic coupling to 
hearing aids.
NOTE:
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 
instructions, 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.
A TIA/EIA-IS-968 compliant telephone cord and 
modular plug is provided with this equipment. This 
equipment is designed to be connected to the 
telephone network or premises wiring using a 
compatible modular jack that is also TIA/EIA-IS-
968 compliant. See Installation Instructions for 
details.
The software contained in (insert specific 
equipment type or features) to allow user access to 
the network must be upgraded to recognize newly 
established network area codes and exchange 
codes as they are placed into service.
Failure to upgrade the premises systems or 
peripheral equipment to recognize the new codes 
as they are established will restrict the customer 
and the customer’s employees from gaining access 
to the network and to these codes. 
						

							Limited Warranty
86
Limited WarrantyPANASONIC CONSUMER ELECTRONICS COMPANY, PANASONIC SALES COMPANY,
DIVISION OF MATSUSHITA ELECTRIC  DIVISION OF MATSUSHITA
CORPORATION OF AMERICA ELECTRIC OF PUERTO RICO, INC.,
One Panasonic Way,  Ave. 65 de Infantería, Km. 9.5
Secaucus, New Jersey 07094 San Gabriel Industrial Park,
Carolina, Puerto Rico 00985
Panasonic Facsimile Product 
Limited Warranty
Limited Warranty Coverage
If your product does not work properly because of a defect in materials or workmanship, Panasonic Consumer 
Electronics Company or Panasonic Sales Company (collectively referred to as 
“the warrantor”) will, for the 
length of the period indicated on the chart below, which starts with the date of original purchase (
“warranty 
period
”), at its option either (a) repair your product with new or refurbished parts, or (b) replace it with a new 
or a refurbished product. The decision to repair or replace will be made by the warrantor.
Batteries, antennas, ink film, toner cartridge, drum unit, and ink cartridge (as may be applicable), and cosmetic 
parts (cabinet) are not warranted under this Limited Warranty.
 
During the 
“Labor” warranty period there will be no charge for labor.  During the “Parts” warranty period, there 
will be no charge for parts.  You must carry-in or mail-in your product during the warranty period.  This warranty 
only applies to products purchased and serviced in the United States or Puerto Rico. This warranty is extended 
only to the original purchaser of a new product which was not sold 
“as is”.  A purchase receipt or other proof 
of the original purchase date is required for warranty service.
Carry-In or Mail-In Service
For Carry-In or Mail-In Service in the United States call 1-800-HELP-FAX (1-800-435-7329)
For assistance in Puerto Rico call Panasonic Sales Company (787)-750-4300 or fax (787)-768-2910.  
Limited Warranty Limits And Exclusions
This warranty ONLY COVERS failures due to defects in materials or workmanship, and DOES NOT COVER 
normal wear and tear or cosmetic damage.  The warranty ALSO DOES NOT COVER damages which 
occurred in shipment, or failures which are caused by products not supplied by the warrantor such as non 
Panasonic ink film, toner cartridge or drum unit, or failures which result from accidents, misuse, abuse, neglect, 
mishandling, misapplication, alteration, faulty installation, set-up adjustments, signal reception problems, 
misadjustment of consumer controls, improper maintenance, power line surge, improper voltage supply, 
lightning damage, modification, or commercial use (such as in a hotel, office, restaurant, or other business), 
rental use of the product,  service by anyone other than a Factory Servicenter or other Authorized Servicer, or 
damage that is attributable to acts of God.
THERE ARE NO EXPRESS WARRANTIES EXCEPT AS LISTED UNDER 
“LIMITED WARRANTY 
COVERAGE
”.  THE WARRANTOR IS NOT LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES 
RESULTING FROM THE USE OF THIS PRODUCT, OR ARISING OUT OF ANY BREACH OF THIS 
WARRANTY.  (As examples, this excludes damages for lost time, cost of having someone remove or re-install 
an installed unit if applicable, or travel to and from the servicer. The items listed are not exclusive, but are for 
illustration only.)  ALL EXPRESS AND IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF 
MERCHANTABILITY, ARE LIMITED TO THE PERIOD OF THE LIMITED WARRANTY.
Model Parts Labor
KX-FB421 1 (One) Year 1 (One) Year 
						

							Limited Warranty
87
Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitations on 
how long an implied warranty lasts, so the exclusions may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state. 
If a problem with this product develops during or after the warranty period, you may contact your dealer or 
Servicenter. If the problem is not handled to your satisfaction, then write to the warrantor’s Consumer Affairs 
Department at the addresses listed for the warrantor.
PARTS AND SERVICE WHICH ARE NOT COVERED BY THIS LIMITED WARRANTY ARE YOUR 
RESPONSIBILITY.
For product service
Call toll-free 1-800-HELP-FAX (1-800-435-7329) 
for the location of an authorized servicenter.
For out of warranty technical support
After the warranty has expired, please contact our 
Continued Services Technical Support Line at 1-
900-555-PANA (1-900-555-7262) for support on a 
fee basis.When you ship the product
Carefully pack your unit, preferably in the original 
carton.
Attach a letter, detailing the symptom or problem, 
to the outside of the carton.
Send the unit to an authorized servicenter, prepaid 
and adequately insured.
Do not send your unit to the Panasonic Consumer 
Electronics Company or to any executive or 
regional sales office. These locations do not repair 
consumer products. 
						

							Customer Services
88
Customer Services
Customer Services directory
To obtain service or technical assistance during the warranty period, please 
contact:1-800-HELP-FAX (1-800-435-7329), Monday-Friday 9am-8pm EST. 
To obtain support or service after the warranty has expired, please contact: 
1-900-555-PANA (1-900-555-7262) for support on a fee basis.
Web Site: www.panasonic.com
(for customers in the USA or Puerto Rico ONLY)
You can purchase parts, accessories or locate your nearest servicenter by 
visiting our Web Site.
Service in Puerto Rico
Matsushita Electric of Puerto Rico, Inc. Panasonic Sales Company / Factory Servicenter:
Ave. 65 de Infanter
ía, Km. 9.5, San Gabriel Industrial Park, Carolina, Puerto Rico 00985
Phone (787) 750-4300   Fax (787) 768-2910 
						

							Index
89
Index
Program index
Basic features
#01 Date and time.................................... 28
#02 Your logo........................................... 29
#03 Your fax number ............................... 31
#04 Sending report ............................ 42, 60
#06 Fax ring setting ................................. 60
#12 Remote activation ID......................... 60
#13 Dialing mode ..................................... 60
#16 Paper size ......................................... 60
#17 Ringer pattern ............................. 27, 60
Advanced features
#22 Journal report .............................. 42, 61
#23 Overseas mode................................. 61
#25 Delayed transmission........................ 61
#26 Caller ID list....................................... 61
#31 Distinctive Ring ................................. 53
#32 Ring pattern ...................................... 54
#34 Quick scan ........................................ 61
#36 Receiving reduction .......................... 62
#39 Display contrast ................................ 62
#40 Silent detection ................................. 62
#41 Remote fax activation code............... 62
#44 Fax receiving alert............................. 62
#46 Friendly reception ............................. 62
#76 Connecting tone ................................ 63
#80 Reset advanced features .................. 63 
						

							Index
90
Index
A Accessories................................................ 6
Paper stacker ........................................ 13
Paper tray .............................................. 13
Advanced features ................................... 61
Alert
Memory reception (Feature #44) ........... 62
Auto document feeder........................ 41, 55
B Basic features .......................................... 60
Broadcast Transmission .......................... 47
Buttons/Keys
BROADCAST .................................. 47, 49
CALLER ID ............................................ 38
CALLER IQ............................................ 80
Delete .................................................... 30
HELP ..................................................... 26
Insert ..................................................... 30
LOWER ..................................... 32, 36, 45
MONITOR ............................................. 36
RECEIVE MODE ................................... 17
REDIAL ................................................. 41
RESOLUTION ................................. 41, 55
C Caller ID ................................................... 37
Calling back ........................................... 38
Storing ................................................... 40
Caller ID list (Feature #26) ................. 37, 61
Caller IQ feature....................................... 80
Character table ........................................ 30
Cleaning ................................................... 74
Communication messages....................... 64
Connecting tone (Feature #76) ................ 63
Copy......................................................... 55
Collation ................................................ 58
Enlarge .................................................. 57
Reduce .................................................. 57
D Date and time (Feature #01) .............. 28, 60
Delayed transmission (Feature #25) ........ 61
Dialing mode (Feature #13) ..................... 60
Display
Contrast (Feature #39) .......................... 62
Error messages ..................................... 65
Distinctive Ring service (Feature #31)53, 61
Document size ......................................... 44
E Error messages.................................. 64, 65
F Fax activation code (Feature #41) ........... 62
Fax auto redial ......................................... 46
Fax number (Feature #03) ................. 31, 60
Fax receiving............................................ 51Friendly reception (Feature #46).............. 62
H Help.......................................................... 26
I Ink film...................................................... 11
J Jams
Document .............................................. 73
Paper ............................................... 70, 72
Journal report (Feature #22) .............. 42, 61
L Logo (Feature #02) ............................ 29, 60
N Navigator directory
Making a phone call .............................. 36
Selecting characters .............................. 30
Sending faxes........................................ 45
Storing ................................................... 33
O One-touch dial
Sending faxes........................................ 45
Storing ................................................... 32
openLCR service ..................................... 80
Overseas mode (Features #23) ............... 61
P Paper size (Feature #16) ......................... 60
Power failure ............................................ 69
Q Quick scan (Feature #34) .................. 42, 61
R Receiving alert (Feature #44) .................. 62
Receiving reduction (Feature #36)........... 62
Recording paper ...................................... 14
Recording paper size ............................... 84
Remote activation ID (Feature #12) ......... 60
Reports
Broadcast programming ........................ 79
Broadcast sending................................. 49
Caller ID .................................... 37, 61, 79
Journal............................................. 42, 79
Power down........................................... 69
Printer test ............................................. 79
Sending ........................................... 42, 60
Setup ..................................................... 79
Telephone number ................................ 79
Reset (Feature #80) ................................. 63
Resolution .......................................... 41, 55
Ringer pattern (Feature #17) ............. 27, 60
Ring pattern for Distinctive Ring (Feature 
#32) .................................................... 54, 61
Ring setting
FAX ONLY (Feature #06) ...................... 60