Sharp EL-1750V User manual

1 | P a g e
ELECTRONIC PRINTING CALCULATOR
OPERATION MANUAL
For USA only:
This product contains a CR Coin Lithium Battery which contains
Perchlorate Material –
special handling may apply, California residents,
See www.dtsc.ca.gov/hazardouswaste/perchlorate/
WARNING –FCC Regulations state that any unauthorized
changes or modifications to this equipment not expressly
approved by the manufacturer could void the user’s authority to
operate this equipment.
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

2 | P a g e
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.

3 | P a g e
Table of Contents
Operational Notes........................................................................................................................................ 5
Using the Calculator for the First Time........................................................................................................ 6
Removing the Insulation Sheet and Resetting.......................................................................................... 6
Adjusting the Date and Time .................................................................................................................... 7
Operating Controls ....................................................................................................................................... 8
Power Switch/ Print/ Item Count Mode Selector ..................................................................................... 8
Rounding Selector..................................................................................................................................... 9
Grand Total/ Rate Setting Mode Selector................................................................................................. 9
Set Date............................................................................................................................................ 9
Set Time ......................................................................................................................................... 10
Set Tax/ Discount Rate................................................................................................................... 10
Decimal/Add Mode Selector................................................................................................................... 11
Overview of Keys..................................................................................................................................... 12
Clock Calendar Key......................................................................................................................... 12
Non-Add/Subtotal Key ................................................................................................................... 12
Clear/Clear Entry Key ..................................................................................................................... 13
Change Sign Key............................................................................................................................. 13
Change Calculation Key.................................................................................................................. 14
Display Symbols ............................................................................................................................. 14
Errors........................................................................................................................................................... 15
Error Conditions ...................................................................................................................................... 15
Ink Ribbon Replacement............................................................................................................................ 16
Paper Roll Replacement............................................................................................................................. 18
How to Connect the AC Adaptor................................................................................................................ 19
Battery Replacement (Option)................................................................................................................... 20
To Install or Replace Batteries ................................................................................................................ 20
Replacement of Batteries for Memory Protection ................................................................................... 21
Time for Battery Replacement................................................................................................................ 21
How to Change the Battery..................................................................................................................... 21
After Battery Replacement ..................................................................................................................... 22
Precautions on Battery Use .................................................................................................................... 23

4 | P a g e
Specifications.............................................................................................................................................. 24
Resetting the Unit ...................................................................................................................................... 26
Calculation Examples ................................................................................................................................. 27
General Instructions................................................................................................................................ 27
Printing Date/Time.................................................................................................................................. 27
Addition and Subtraction with Add Mode.............................................................................................. 28
Mixed Calculations.................................................................................................................................. 28
Constant Calculations.............................................................................................................................. 29
Percent.................................................................................................................................................... 29
Item Count Calculation ........................................................................................................................... 30
Memory................................................................................................................................................... 31
Tax Rate Calculations .............................................................................................................................. 32
Grand Total ............................................................................................................................................. 33
Cost, Sell, Margin .................................................................................................................................... 34
Change .................................................................................................................................................... 36
Warranty..................................................................................................................................................... 41

5 | P a g e
To insure trouble-free operation of your SHARP calculator, we
recommend the following:
1. The calculator should be kept in areas free from extreme
temperature changes, moisture, and dust.
2. A soft, dry cloth should be used to clean the calculator. Do
not use solvents or a wet cloth.
3. Since this product is not waterproof, do not use it or store it
where fluids, for example water, can splash onto it.
Raindrops, water spray, juice, coffee, steam, perspiration,
etc. will also cause malfunction.
4. If service should be required, use only a SHARP servicing
dealer, a SHARP approved service facility or SHARP repair
service.
SHARP will not be liable nor responsible for any incidental or
consequential economic or property damage caused by misuse
and/or malfunctions of this product and its peripherals, unless
such liability is acknowledged by law.

6 | P a g e
First, pull out the insulation sheet for the memory protection
battery (installed for retaining the date/time/tax rate information).
Reset the calculator to initialize the unit's state, then adjust the
date and time before using the calculator.
Removing the insulation sheet, and resetting
1. Pull out the insulation sheet for the memory protection
battery.
2. Press the RESET switch located on the back of the unit.
(See “RESETTING THE UNIT”.)
* The clock starts, indicating the current date and time as
January 1, 2008, 12:00:00 a.m.

7 | P a g e
Adjusting date and time
Example: When the date is September 15, 2007, and the
time is 3:38 p.m.
* When the adjustment is complete, the clock starts at
3:38:00 p.m.

8 | P a g e
POWER SWITCH; PRINT / ITEM COUNT MODE
SELECTOR:
OFF
Power Off
Power ON. Set to the non-print mode.
P
Power ON. Set to the print mode.
PIC
Power ON. Set to the print and item count
mode.
1. For addition or subtraction, each time is
pressed, 1 is added to the item counter, and
each time is pressed, 1 is subtracted.
The count is printed when the
calculated result is obtained.
Pressing of , clears the
counter.
2. When the grand total/rate setting mode
selector is in the ON position (GT), the
counter will count the number of times that
the calculation results have been stored in
the grand total memory. To print and clear
the count, press the key.
3. The memory item counter will count the
number of times that the key has been
pressed in the addition.
Note: 
Each time the key is used in the
subtraction, 1 will be subtracted from
the count.
The count is printed when the memory
is recalled.

9 | P a g e
Pressing of the key clears the
counter.
Note: The counter has a maximum capacity of 3 digits (up
to ±999). If the count exceeds the maximum, the counter
will recount from zero.
ROUNDING SELECTOR:
Example: Set Decimal Selector to 2.
4 ÷ 9 = 0.444 ..., 5 ÷ 9 = 0.555...
Note: The decimal point floats during successive calculation by
the use of or .
If the decimal selector is set to “F” then the answer is always
rounded down ( ).
GRAND TOTAL / RATE SETTING MODE SELECTOR:
“GT”: Grand Total
“ ”: Neutral
“RATE SET”: To set the date, time, and tax rate, set this switch at
the “RATE SET” position.
Date:
Enter in the order of month, day and year, then press to
complete the entry.
Use to separate month, day, and year.

10 | P a g e
When is pressed, the number entered is evaluated and
displayed as “date” if the value is within the following range;
“Error” is displayed otherwise, and the previously set date is
restored.
Month: 1 - 12; day: 1 - 31; Year: 2000 - 2099 (in 4 digits) or
00 - 99 (in 2 digits)
Time:
Enter in the order of hour, minutes, then press to
complete the entry. (There is no entry available for the
seconds value. The clock starts at zero second.)
If the hour/minute digit is less than 10, it is not necessary to
enter the first digit “0”.
Use to separate hour and minute values.
When is pressed, the number entered is evaluated and
displayed as “time” if the value is within the following range;
“Error” is displayed otherwise, and the previously set time is
restored.
Hour: 0 - 23 (24-hour system for the hour entry), Minute: 0 –
59
Tax rate:
Press three times, enter the tax rate, followed by .
A maximum of 4 digits can be stored (decimal point is not
counted as a digit).
Only one rate can be stored. If you enter a new rate, the
previous rate will be cleared.

11 | P a g e
DECIMAL / ADD MODE SELECTOR:
“3 2 0”: Presets the number of decimal places in the answer.
“F”: The answer is displayed in the floating decimal system.
“A”: The decimal point in addition and subtraction entries is
automatically positioned to the 2nd digit from the lowest digit
of entry number. Use of the add mode permits addition and
subtraction of numbers without entry of the decimal point.
Use of , and will automatically override the add
mode and decimally correct answers will be printed.

12 | P a g e
Overview of Keys
CLOCK / CALENDAR KEY:
Each time this key is pressed, the mode switches.
Calculation mode Date display mode Clock display
mode Calculation mode
Use this key also to adjust date and time (see “GRAND
TOTAL / RATE SETTING MODE SELECTOR”).
PAPER FEED KEY
LAST DIGIT CORRECTION KEY
NON-ADD / SUBTOTAL KEY:
Non-add –When this key is pressed right after an entry of a
number in the Print mode, the entry is printed on the left-
hand side with the symbol “#”. This key is used to print out
numbers not subject to calculation such as code, date, etc.
Subtotal –Used to get subtotal(s) of additions and/or
subtractions. When pressed following the or key, the
subtotal is printed with the symbol “ ” and the calculation
may be continued.
By pressing this key even in the Non-print mode, the
displayed number is printed without any symbol.
When the POWER SWITCH; PRINT / ITEM COUNT
MODE SELECTOR is set “•”, “P” or “P•IC” position, and
Date or Clock is displayed, press this key to print the
displayed contents, including “#” symbol, from the left
side of the paper roll.
Example:
Date printing
#9 • 15 • 2007 • • • • • • • (when the date is September
15, 2007)
Clock printing
#10 • 30 • • • • • • • • • • • (when the time is 10:30 a.m.)

13 | P a g e
#6 • 25 - - - - - - - - - - - - (when the time is 6:25 p.m.)
When the Date / Clock printing is complete, the
Calculation mode is restored.
CLEAR / CLEAR ENTRY KEY
Press this key twice, followed by , to print the set tax
rate.
TOTAL KEY
EQUAL KEY
CHANGE SIGN KEY:
Changes the algebraic sign of a number (i.e., positive to
negative or negative to positive).
COST PRICE ENTRY KEY:
Press this key to enter the cost price.
SELLING PRICE ENTRY KEY:
Press this key to enter the selling price.
MARGIN ENTRY KEY:
Press this key to enter the margin.
CHANGE CALCULATION KEY:
To see how much change to return, have the price
amount displayed, then enter the pay amount, followed
by this key. The change is calculated in accordance

14 | P a g e
with the DECIMAL / ADD MODE SELECTOR setup as
well as the ROUNDING SELECTOR Setup.
The intermediate result of an addition or subtraction in
the Change calculation is retained.
While the POWER SWITCH / PRINT / ITEM COUNT
MODE SELECTOR is placed in “P” or “P•IC”, the pay
amount is printed after “• • • • • • • • • • • • •” and the
change printed with “CG”.
Note: The displayed change value will not be added to the
grand total memory.

15 | P a g e
There are several situations which will cause an overflow or an
error condition. When this occurs, “E” will be displayed. The
contents of the memory at the time of the error are retained.
If an “E 0.” is displayed at the time of the error, “– ––––––” will
be printed in red and must be used to clear the calculator.
Also, in rare cases, printing may stop midway and the indication
“E” will appear on the display. This is not a malfunction but is
caused when the calculator is exposed to strong electromagnetic
noise or static electricity from an external source. Should this
occur, press the key and then repeat the calculation from the
beginning.
Error conditions:
1. When the integer portion of an answer exceeds 12 digits.
2. When the integer portion of the contents of the memory or
grand total memory exceeds 12 digits. (Ex.
999999999999 1 )
3. When any number is divided by zero. (Ex. 5 0 )

16 | P a g e
If printing is blurry even when the ink roller is in the proper
position, replace the roller.
Ink roller: IR40T
WARNING
APPLYING INK TO WORN INK ROLLER OR USE OF
UNAPPROVED INK ROLLER MAY CAUSE SERIOUS
DAMAGE TO PRINTER.
1. Set the power switch to OFF.
2. Remove the printer cover. (Fig. 1)
3. Hold the top of the ink roller and remove the roller by pulling
it toward you and then upward. (Fig. 2)
4. Install the new ink roller in the correct position. Make sure
that the roller is securely in place. (Fig. 3)
5. Put back the printer cover.

17 | P a g e
Cleaning the printing mechanism:
If the print becomes dull after long time usage, clean the
printing wheel according to the following procedures:
1. Remove the printer cover and the ink roller.
2. Install the paper roll and feed it until it comes out of the front
of the printing mechanism.
3. Hold a small brush (like a tooth brush) lightly to the printing
wheel and clean it by pressing .
4. Put back the ink roller and the printer cover.
Note: •Do not rotate the printing mechanism manually, this may
damage the printer.

18 | P a g e
Never insert paper roll if torn. Doing so will cause paper to
jam.
Always cut leading edge with scissors first.
1. Insert the leading edge of the paper roll into the opening.
(Fig. 1)
2. Turn the power on and feed the paper by pressing . (Fig.
2)
3. Lift the attached metal paper holder up and insert the paper
roll to the paper holder. (Fig. 3)
DO NOT PULL PAPER BACKWARDS AS THIS MAY CAUSE
DAMAGE TO PRINTING MECHANISM.

19 | P a g e
This machine can also be operated on AC power by use of the
AC Adaptor. When the AC adaptor is connected to the calculator,
the power source is automatically switched over from dry batteries
to AC power source.
AC adaptor: Model EA-65A, EA-28A
Make sure that you turn the calculator’s power off when
connecting or disconnecting the AC adaptor.
To connect the AC adaptor, follow steps ➀and ➁.
To disconnect the AC adaptor, simply reverse the procedure.
CAUTION
Use of other than the AC adaptor EA-65A/28A may apply
improper voltage to your SHARP calculator and will cause
damage.

20 | P a g e
To Install or Replace Batteries —when the battery power
becomes weak, printing may be halted, and displayed images
may disappear. If such symptoms are observed, replace the
batteries with new ones.
1. Set the power switch to OFF.
2. Remove the battery cover by sliding it in the direction of the
arrow on the cover.
3. Replace the batteries. Be sure that the “+” and “–” marks on
the battery correspond to the “+” and “–” marks in the
calculator. Always put back the 4 batteries at the same time.
4. Put back the battery cover.
Battery: Manganese dry battery, size AA (or R6) 4
If the leaked electrolyte gets into eyes, wash off with clean
water, and consult your doctor immediately.
If the leaked electrolyte gets on your skin or clothes, wash off
thoroughly with water.
Remove batteries if not used for prolonged periods of time.
Do not leave dead batteries in the unit.
Do not mix new and used batteries and/or battery types.