Victor 1280-7 User manual

Electronic USB Calculator Operating Manual
Model
1280-7 USB

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PREFACE
Congratulations on your choice of a Victor electronic calculator. Careful design, quality
materials, painstaking workmanship, and advanced research and production facilities have
given you a calculator that, with proper care, will provide years of trouble-free service. To
assure future optimum performance, ask your Victor representative about low-cost protection
offered by Victor’s Extended Guarantee Protection Program.
This operating manual describes the features and operation of the Victor 1280-7 USB
electronic calculator.
Model 1280-7 is a print/display calculator, 12-digit, with one independent memory.
This calculator features the four basic arithmetic operations, grand total, percentage and
delta percent-of-change, cost, sell, margin, change sign, sigma, item count, non-add/date
functions, programmable tax rate key for two independent tax keys, backspace, square root
function, time and date functions with battery back-up.
TABLE OF CONTENTS
OPERATIONS AND MAINTENANCE.…............…….................................................3
ACTIVATE BACKUP BATTERY.….……………………………………………………….3
REPLACING INK RIBBON...…….……....................………........................................4
REPLACING WITH CARTRIDGE RIBBON……..……………………………………….4
HOW TO FEED THE PAPER TAPE…...........……......………..................................…5
BATTERY REPLACEMENT…………………………..…………………………………...5
KEYBOARD LAYOUT..........................................……....……….................................6
SLIDE SWITCH FEATURES..........................................……….........................…….8
KEY FEATURES...............................................................……….....................……..9
APPLICATION EXAMPLES.………………...................................….................……13
SETTING DATE AND TIME…………………………………………………………..28,29
TECHNICAL SPECIFICATION……………….……………………………..…………. 33

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OPERATIONS AND MAINTENANCE
Before Turning On - Please remove ribbon-cushion placed on a ribbon and check the rating
label on the bottom to see if the rated voltage corresponds to the local voltage before plug in
AC cord.
Note: Ribbon cushion is located under
printer cover.
CAUTIONS
1. Do not place the machine in hot, dusty or damp locations.
2. To clean the housing use a silicon-treated cloth. Do not use water or detergents.
3. Do not place anything on the housing, particularly on the head of the printer
mechanism.
4. Turn off the power switch before removing the plug from AC wall outlet.
5. Turn the power switch off while not in use.
6. The socket-outlet shall be installed near the equipment and shall be easily accessible.
ACTIVATE BACKUP BATTERY
Before start using the calculator, please remove the insulation paper below the backup
battery.
1. Turn the AC power switch OFF and remove the battery compartment cover located on
the bottom case.
2. Remove the insulation paper located below the backup battery.
3. PRESS THE RESET SWITCH.
4. Replace the battery compartment cover.
5. Turn ON the AC power switch.
6. Program the date and time according to the instruction manual.
1
REMOVE BEFORE USING THE MACHINE
Depress Reset in Battery Compartment
Program Date & Time – See Operator Manual
Backup Battery
CR2025
Insulation
Paper
Reset Button
3
2

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REPLACING INK RIBBON
Your calculator is shipped with a 2-color ribbon already in place. You do not need to install or
change it before you begin using the calculator. When you have been using your calculator
for some time, however, the print will gradually become faint, indicating that you should
change the ribbon. To change the ribbon, follow these steps.
1. Remove paper roll, tearing paper at rear of calculator. Use the Paper Advance (↑) key to
feed the remaining paper tape through the printer. Then remove the printer cover.
2. Remove the old ribbon by pulling upward.
3. Install the ribbon spool with the black edge up. Roll from the outside of the full spool and
place the first spool on the spindle not engaged by the lever. Thread the new ribbon
along the outside of the guides and in front of the print wheels. Switch the lever to the
other side and replace the second spool.
4. Rotate the spools to take up any slack. Replace the printer cover and the paper tape.
Correct direction Incorrect direction
REPLACING WITH CARTRIDGE RIBBON
You have the option to use a cartridge ribbon
in this model.
1. Remove paper roll, tearing paper at rear of calculator. Use the Paper Advance (↑) key to
feed the remaining paper tape through the printer. Then remove the printer cover.
2. Remove the old ribbon/cartridge by pulling upward
3. Install the new cartridge by pressing it down with the VICTOR logo facing up, as shown.
4. Replace the printer cover and the paper tape.

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HOW TO FEED THE PAPER TAPE
1. Put the new paper roll on the paper arm.
2. Insert the paper into the slot as indicated.
3. Depress the paper feed key.
4. Suitable paper roll:
Width: max. 57.5mm (2.25”)
Diameter: max. 50mm (1.97”)
Paper: Normal paper
(45kg/1000 sheets/788 x 1091 mm)
BATTERY REPLACEMENT
1. Turn the AC power switch off
2. Remove - the battery compartment cover located on the calculator bottom case.
3. Remove the old battery and install a new CR2025 or equivalent.
4. Turn on the AC power switch
5. PRESS THE RESET BUTTON
6. Replace the battery compartment cover.
7. Reprogram the date and time.
(See page 28 & 29)
Battery Cover
Battery
Battery
Holder
Reset Switch
Bottom Case
1.
3.
5.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Only replace with the same or equivalent type
recommended by the manufacturer.
Dispose of used batteries according to the
manufacturers’ instructions.

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KEYBOARD LAYOUT
1. Decimal Selector 17. Equal
2. Rounding Selector 18. Multiplication
3. Sigma or Grand Total Mode Selector 19. Sign Change
4. Calculator or PC Switch 20. Delta Percentage
5. OFF, Print or Item Count Switch 21. Clear Entry / Clear
6. Paper Feed 22. Numeric Key Pad
7. Back Space 23. Subtraction
8. Cost 24. Addition
9. Sell 25. Time/Date Display
10. Margin 26. Non-add / Subtotal
11. Ta x 1 27. Total / Enter
12. Tax 2 28. Memory Total / Move Up
13. Tax Rate Pr eset 29. Memory Subtotal / Move Down
14. Send 30. Memory Subtraction / Move Left
15. Percentage 31. Memory Addition / Move Right
16. Division

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This section describes the mode switches, data entry keys, and operating keys provided
on your calculator. The following terms are used in discussing your calculator’s operation:
• The accumulator is the area of the calculator’s logic that stores a running total of
the results of addition and subtraction operations. It is the “adding machine” portion
of the calculator.
• The calculating register is the area of the calculator’s logic where the intermediate
and final results of multiplication, division and percentage calculations are stored.
The contents of the calculating register do not affect the accumulator.
• The keyboard register is the area of the calculators logic that stores the value that
will immediately be used in the next calculation.
• The item count register is the area of the calculator’s logic that counts your entries
into the accumulator. Each entry is counted as one item.
• The memory register is the area of the calculator’s logic that accumulates
amounts you add to or subtract from the memory. Because the memory register is
independent of the accumulator and the calculating register, it retains its value until
you clear it with the Memory Total [MT] key.

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SLIDE SWITCH FEATURES
This section illustrates and describes the mode switches you can use to control your
calculator’s operation.
1. A F 0 2 3 4 Decimal Point Selector
A Monetary Add Mode: At this setting, amounts entered are assumed to
be monetary. The calculator automatically supplies a decimal point to
the left of the last two digits entered. Use this setting to add, subtract,
multiply and divide decimals.
Units/price mode operation:
Multiplication: The first factor will be entered as a whole number and the
second factor will have a decimal point supplied to the left of the last two
digits.
Division: The first factor will have a decimal point supplied to the left of
the last two digits and the second factor will be entered as a whole
number.
FFloating decimal point mode; this setting specifies that all digits of the
result be shown up to a maximum of 12 digits. If the result exceeds
these capacities, excess digits to the right of the decimal point are
dropped. No rounding takes place.
0,2,3,4 Fixed decimal point mode; these settings specify the number of digits to
the right of the decimal point that are shown in the result.
2. ↑5/4 ↓Rounding Switch
↑Absolute round up.
5/4 This setting causes automatic round off. If the last digit of the result that
will be printed or printed/displayed upon rounding is followed by a value
of 0 to 4, the digit is unchanged. If the last digit of the result that will be
printed or printed/displayed upon rounding is followed by a value of 5 to
9, the digit is rounded up.
↓Absolute round down (truncation).
3. ∑•GT Sigma or Grand Total Switch
∑When the Sigma switch is in the “∑” position, the results of multiplication
or division calculations completed by the [=] or [%] key are
automatically added to the accumulator.
•Normal Calculation.
GT Any total taken with [T] key is automatically accumulated to Memory.
The accumulated Memory can be recalled by pressing the [MT] key.

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4. Calculator or PC Switch
CALC Normal calculation mode.
PC When connect the calculator to computer by using USB cable, turn ON
this switch will change calculator to ‘Ten Key Pad’ Mode. Display will be
showing ‘ – PC – ’.
5. OFF ON P IC Printer Select Switch
OFF Turn Off the calculator.
ON Printer is activated only when feed key or [#/S] key is pressed.
P Printer is activated as long as calculator is turned on.
IC Number of entries through key [+], [−], [M+], [M−]will be counted.
Result is printed at left when subtotal or total is key is used.
KEY FEATURES
6. [↑]Paper Feed Key
Advance the paper roll.
7. [→]Right Shift
Deletes right most character of a live entry.
[BS] Backspace Key
Used in PC Application. Delete one character to the left.
8. [COST] Cost Key
Used to enter the Cost factor in a Gross Profit Margin calculation.
9. [SELL] Sell Key
Used to enter the Selling price in Gross Profit Margin calculation.
10. [MARGIN] Profit Margin Key
Used to enter the desired Margin in a Gross Profit Margin calculation.
11. [TAX 1] Tax 1 Key
Calculate an amount of Tax 1 with tax rate preset by [RATE] key. Use [+] key for
calculating an amount include VAT, and [−]key for calculating an amount
excluding VAT.
12. [TAX 2] Tax 2 Key
Calculate an amount of Tax 2 with tax rate preset by [RATE] key. Use [+] key for
calculating an amount include VAT, and [−]key for calculating an amount
excluding VAT.

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13. [RATE] TAX Rate Preset Key
Used to enter TAX rate.
14. [SEND] Send Key
Allow user to transfer the calculation result or any entry from Calculator to PC.
15. [%±] Percent Key
Completes percent calculation when [x] or [÷]key is used.
Used to enter ‘%’ in PC Application.
16. [÷]Division Key
The Division key performs division, automatic constant division and
intermediate sequential operations. It establishes the next amount as a constant
divisor. The [÷]key also causes the calculator to divide when you depress the
[=], [%±], [M+], [M−], [x] or [÷]key. Each divisor entry is retained as a constant
(except [M+] and [M−]entries) until you depress the [x], [÷] or [CE/C].
Used to enter ‘/’ in PC Application.
17. [=] Equal Key
To get the result in delta percent, multiplication or division.
Used to enter ‘=’ in PC Application.
18. [X] Multiplication Key
The multiplication key performs multiplication, automatic constant multiplication
and intermediate sequential operations. It establishes the amount entered or the
previous printed or printed/displayed amount as a constant multiplicand. The [x]
key also causes the calculator to multiply when you depress the [=], [%±], [M+],
[M−], [x] or [÷]key. Each multiplicand entry is retained as a constant (except
[M+] and [M−]entries) until you depress the [X], [÷], or [CE/C].
Used to enter ‘∗’ in PC Application.
19. [+/-] Sign Change Key
Reverse the sign on the display.
20. [Δ%] Delta Percentage Key
Automatically compares any two amounts and then calculates and prints the
difference and percent of change.
21. [CE/C] Clear Entry / Clear Key
Clears a live entry by pressing this key once. Press twice to clear the
accumulator or pending calculation. Does not clear the Memory or Grand total.
22. [0]-[9], [00] & [•]Numeric Keys
The calculator uses the conventional 10-key indexing keyboard, and include the
double zero key and decimal point key. Whole numbers are entered exactly as
they are written.
Used to enter 10-key in PC Application.