Ricoh Ricomac 1210P Assembly instructions

OPERATING
INSTRUCTIONS
ELECTRONIC CALCULATOR
RICOMAC
'I2'1DP
(RICON)
RICOH COMPANY L TO .

CO NT ENTS
TO OUR CUS TOM ERS ............................................................................. ..... ............. .. ............... .
I.
CAUTIO S ............... .... .......... .. ...... .............. ........ ..... ...... ... ....... ......... ......... .. ....... ................. 2
2.
PRINT I NG MECH ANIS M ....................................................................... .... .... ........................ 4
3.
KEyBOARD.............................................................................................. ..... ........................ 6
4.
EXPLANATION............................. .... ....................... .................. ...... ........ ............ ...... ...... ..... 7
5. F
EA TURE S .. .................................................................................... ...... .......... ...... ........ .. ...... 8
6. S
PE CIAL FUNCTIONS .. ............. ................................................. ........................................... 9
o
UNDERFLOW 0 AUTOMATIC P APER ADVANCE 0 ITEM COUNTER
o REMAINDER AND CONSTANT CALC U LATION 0 AU TOM A TIC DA TA CL E ARING
7. OPERATING EXAMPLES .. .. ................................................................................................... II
I) ADDITION AND SUBTRACTION ................................ ............................... .... ..... .... .. ...... II
2) MULTIPLIC A TION .......... ........ ........................... .................. ........ ............ ....................... JI
3)
DIVISION ................................................................................ .. ...................................... 12
4) MIXED CALCULATION (I) ................................................................ . .......... ... ..... ......... . 12
5) POWER CALCULATION ................................................................................................. 13
6) ACCUMULATIVE MULTIPLICATION AND DIVISION .. ........ .... ........ .. ............ .. ............. 13
7) PERCENTAGE CALCULATION ...................................................................................... 14
8) DISCOUNT CALCULATION .......................... .. ................................................................ 14
9) ADD-ON CALCULATION ................................................................................................ 14
10) MIXED CALCULATION (2) ............................................................................................... 15
II) DIVISION AND REMAINDER .............................................. .......... ...... ............ ............... 15
12) RECIPROCAL CALCULATION ...................................................................................... . 16
13) M IXED CONSTANT MULTIPLICATION ......................................................................... 16
14) MEAN VAL UE CALCULATION ............................................................................... ....... 17
15) PERCENTAGE DISTRIBUTION ........................................................... .. ..... .. ...... .. .... ......... 17
16) CORRECTION OF ERRONEOUS KEY TOUCH ................................ .... .. . ........................ 18
17) K EY OPERATION AND COUNTER ........................... .. ................................................... 19
8. SPECIFICATIONS... .................................. ........ .... .................................................................. 20
8M mard31 is given to the electronic desk top
calculator that stands t
he quality recognition test insti-
uted
b ~ Japan B u~ in c" Machine Makers Associa-
tio n.

TO OUR CUSTOMERS
Your RICOMAC Electronic Printing Calculator Model 1210P has
been designed to fulfill the five functions
of arithmetic, incorporating
constant and memory.
This Operating Instructions
will assist you in understanding the
various function keys, and the operation
of the calculator.
Some practice examples have been included to enable you to gain
both confidence and proficiency
in the use of the calculator.
If you should ever need further advice in relation to your own particu-
lar figure work, please, contact
our authorized dealer or branch.
- 1 -

1. CAUTIONS
I. Never disassemble the RICO MAC 121OP.
2. Keep the RICOMAC 1210P from water and
chemicals.
Make sure your hands are dry before using the
RICOMAC 121OP.
., \'! / .'
" / .'
-~ 0 :::.-
...- .......
~ / " .
/ I' \ ' -.
/ I '
\
3. Operate the keys certainly, and yet do not give 4. Do not use or leave the RICOMAC 12lOP at a
excessive impacts to them. place subject to much dust or direct sunlight for
a duration
of hours.
- 2 -

5. Do not drop the RICOMAC 121OP.
Do not shade it hard either.
, \ 1 I
f«
......... .. ..
:'"' ))
",~
- )1
-= 00-
\\ I, .
6. Do not use RICOMAC 1210P near heat-
generating equipment, a TV set
or a radio.
I . Be sure to supply power of the rated voltage.
ff
8. For cleaning the RICOMAC 121OP, use the
accessory silicon cloth.
Do not use the cloth as
dampened with water or chemicals.
- 3 -

2. PRINTING MEC HA NISM
Before U sin g the RICOMAC 1210P
I. Remove the upper panel, ta ke off the instruction
tag from the ribbon,
and set the ribbon correct -
ly.
2. Pressing the upper part of the paper holder
C position lightly,
in sert the lower part into A position, so
that the projection on each side
of the paper
holder may s
nap precisely into B position.
Nipping the guide shaft with your fingers, put
it
between position C right and left.
3. Check
that the power switch is OFF, and then
connect the accessory power cord.
- 4 -

How To Set Roll Paper
I. After placing paper holder on the machine, in -
sert
paper roll in the holder.
2.
(a)
Turn on the power switch.
(b) Insert
paper into the inlet above the paper ten-
sion guide. and depress IFEEDIkey to
advance
the paper until paper extends beyond plastic
tear - off knife.
Spool Removal For Ribbon Replacement
I. Turn off the power switch.
Take off the top cover of the printer.
2. To remove ribbon spoo ls, pinch retaining lever
® and lift out.
3. Insert spoo ls in position 0 and ® ' place
ribbon
around 0 and CD and through slots (0
and @ .
4.
Make sure the new ribbon spools are placed cor -
rectly.
5. Set both spools to the correct position by
pushing
down each spool and moving right and
left.
6.
Make sure the new ribbon spools are set cor-
rectly.
j • c~
After using the
RICO MAC 12 tOP, turn off the power switch, and put on the dust cover.
- 5 -
III

3. KEYBOARD
CD ROUND - OFF SELECTOR
1\
® PAPER F EE D KE Y·-----,
@ NE GATIV E ENTRY KEY
@ E XCHANG E KEY
® NON - ADD KEY
@C LE AR KEY -----'
(J) NUMERAL KE YS -----------
@ DECIMAL POINT KEY - ----------
® SUBTRACTION KEY ___________ .J
@ ADDITION KE Y---------------./
@ EQUAL ADDITION KEY ____________ ...1
r-------------POWER SWITCH @
;=-----------POWER LAMP @
r---- ADD - MODE SELECTOR @
'-------D E CIMAL POINT
SE LECTOR @
'-------- ITEM COUNTER
RECALL KEY @
L- _ ______ PERCENTAGE KEY @
'---------- DIVISION KEY @
'-------- MULTIPLICATION KEY @
~---------EQUALKEY ~
~-----------TOTALKEY ~
~---------- SUBTOTAL KEY @
- 6 -

4. EXPLANATION
(See keyboard picture on page 6)
l. f- 5/4 ROUND-OFF SELECTOR
a. r Truncate or drop-otT position
b. 5/
4 Round-otT
2. IFEEDI
PAPER FEED KEY
This key advances the paper.
3. a NEGATIVE ENTRY KEY
When negative numbers are to be entered, this key must be depressed to give negative sign to entry.
4. 0
EXCHANGE KEY
Permits reciprocal calculation and helps to check previous entry
or result.
5. C NON-ADD KEY
Prints numbers such as dates, slip numbers etc.
6. II CLEAR KEY
A) When this key
is depressed after a entry, the first depression will clear the entry and the second depression
will clear everything except memory and item counter.
B) When this key is depressed after the function key is depressed, everything except memory and item coun-
ter
will be cleared.
7. []J ~ C!J , §J NUMERAL KEYS
8. c:J DECIMAL POINT KEY
9. a SUBTRACTION KEY
10. 0 ADDITION KEY
II. II EQUAL ADDITION KEY
To add the result of multiplication or division to the memory.
12. II SUBTOTAL KEY
13 . r.:t TOTAL KEY
14. EI EQUAL KEY
15. m MULTIPLICATION KEY
16. = DIVISION KEY
17 . £J PERCENTAGE KEY
18 . mITEM COUNTER RECALL KEY
Contents
of the item counter are printed.
y
19. F 0 I 2 3 4 6 DECIMAL POINT SELECTOR
a. F.......... . ...... ........ .......... ..... ......... .... Floating
b. 0 I 2 3 4 6 ..................... ........ ........ Fixed decimal or Add mode
y
20. OFF ADD ADD - MODE SELECTOR
a. ADD Add mode
b.
OFF Fixed decimal
21. 0
POWER POWER LAMP
22. POWER SWITCH B
- 7 -

5. FEATURES
o
Utmost reliable due to R-LSls.
o The printer of new Ricoh development prints as fast as 2.7 lines/sec.
o Completely noiseless start and stop, except printing.
o For additions and subtractions, the adder system is used; repeat calculations are feasible as
well.
For multiplications and divisions, key operations are in the same sequence as the mathematic
expressIons.
o A buffer register is contained for preventing possible overflow and erroneous calculation due
to hasty key operations, and for accelerating continuous calculations.
o The percentage key simplifies percent, add-on and discount calculations.
o A non-add key is provided for the convenience of printing dates and numbers.
o An automatic constant system which makes an operand the constant automatically is incor-
porated for
constant calculations.
o Automatic 3-digit punctuation for easy reading.
o Zero suppression for not printing unnecessary zeros.
o Equal and round-ofT symbols for easy identification of exact and rounded answers.
o Two-key rollover system for normal performance even when a key is pushed before release
of the preceding key.
o Double-zero key for faster zero inputs
o Item counter start check function, printing a "D" symbol.
o One-, two-, three-, four- and six-digit designated add-mode calculation functions
o Multiplications and divisions may be continuous even if additions and subtractions are inter-
posed.
(For examples, see Item 10) Mixed Calculation (2))
- 8 -

6. SPECIAL FUNCTIONS
RICOMAC 1210P has the following special functions.
o UNDERFLOW
When the result of an operation exceeds 12 digits, the decimal point (if it is in the result) automatically shifts toward
the right, bringing the entire print with
it toward the right.
Thus , such an excess does not result in ERROR .
EXAMPLE:
Problem Instruct Entry
on Keyboard Touch
Printing
12345679 x
18
~
OFF
r
OJ 0 0 [!)[I l[!JITllIl
OJ[!)
m
II
I 2,3 4 5,6 7 9 • X
1 8 . =
2 2 2,2 2 2,2 2 2 ·000
o AUTOMATIC PAPER ADVANCE
a) During printing, the paper automatically advances for line spacing (single) after each printed line.
b) Ife , ., II, II or II key has been pressed, each line printing results in a double-line -s pacing advance
of the paper.
c)
If t:J key has been pressed, the printing results in a five-line-spacing advance of the paper.
o ITEM COUNTER
A 3-digit counter function is provided, and printing is made by means of mkey.
The
counter counts the number of depressions of a ' 1:1 and II
Pressing t:J key causes the counter to stop , holding the count at that time. By next pressing a' 1:1 and II keys,
ITEM COUNTER is cleared for re-starting counting. At this time, item counter start mark" .i:'-." is printed.
At the count next to "999" , "0" is resumed.
o REMAINDER AND CONSTANT CALCULA TION
If DECIMAL POINT SELECTOR has been set to 0, 1,2, 3,4 or 6, the constant calculation or remainder calcu-
lation
is selectable by using ROUND-OFF SELECTOR.
EXAMPLES:
Problem
REMAINDER
CALCULA nON
CONSTANT
CALCULATION
ROUND - OFF SELECTOR
f" 5/4
IO
=
I DEC' i 3
II
OFF
II
10 •
3 . =
3 ·33
o ·01 R
I o •
3 •
~
3 • 3 3
3 .3 3
3 • ~
I • I I
NOTE: In case of floating decimal point (F), the remainder calculation takes place at all times.
- 9 -

o AUTOMATIC DATA CLEARING
I) Automatic data clearing occurs when POWER SWITCH is turned on.
2) Automatic data clearing except the memory and item counter occurs when an error occurs during calculating
operation.
When clearing occurs Printing
a)
Turning on POWER SWITCH o . C
b)
Misentry of number
~
1234567890123
12 3456789012
2 m
EJ
1 2 3,4 5 6,7 8 9,0 1 2 ·
2 ·
2 4 6,9 1 3,5 7 8,0 2 4 ·
E
x
=
!
c)
Error in result
rE
4500
1234567900
123456790
m
EJ
EJ
4,500 •
1,2 3 4,5 6 7,9
00 •
5
·55 5 555 5 5 000
4,500 •
1 2 3,4 5 6,7 9 0 •
5 5 5,5 5 5,5 5
5,000 •
x
=
E
12
x
=
d)
Error in memory addition
ffi
999999999999
5 G
G
B
9 9 9,9 9 9,9 9 9,9 9 9 •
9 9 9,9 9 9,9 9 9,9 9 9 ·
+z0.
0
- 10-

7. OPERATING EXAMPLES
I) ADDITION AND SUBTRACTION
Printing
Entry on keyboard
Touch
Problem Instruct a 3 2 I •
DECO
321 +789 [IJ00]
+ ~
a
789 •
OFF
ITlC!l0 +
I, I I 0 •
.r
t:J
*
(5-line Feed)
1.2 + 5.1 -9.63
DEC2
OFF
.r
0]80
W8CD
[!)8tIJ0
a
a
II
t:J
I
·20
+~
5 • I 0 +
9 ·63
3·33-*
(5-line Feed)
REPEAT ADDITION 1 2 3 •
F
0]00
+~
a
& SUBTRACTION
I 2 3 •
OFF
a +
123 • -
123 + 123 - 123 + 12
.r
II
a 1 2 3 • +
2 4 6 •
t:J
*
(5-1ine Feed)
2) MULTIPLICATION
Problem Instruct Entry
on keyboard Touch Printing
1.25 X 9.876 F
0]800
m 1 • 2 5 X
-
OFF
08C!lITl[!J iii
9 • 876
=
.r
1 2 ·34 5
CHAIN MULTIPLICATION
080[IJ
m 9
·53
X
9.53 X 1.9 X 3
0]80
m 1 • 9 X
0 iii
3 • =
5 4 • 321
CONSTANT
MULTIPLICATION
[IJ[!J
0]0
m
iii
36·
I 2 • X
=
36 X 12
432 •
36 X
65
36 X 96 [!J0
iii
36·
X
6 5 • =
NOT E: 2, 3 4 0 •
First entry
becomes constant.
(]][!J
iii
3 6 • X
9 6 • =
3, 4 5 6 •
- 11 -

3) DIVISION
Problem Instruct Entry on keyboard Touch Printing
36.9
-:- 7
!
DEC 6
OFF
r
0[!][J[!]
W =
EI
3 6 • 9
7 •
5
·27 1 428
=
DEC6
OF F
5/4
[IJ[!]8[!]
m = EI
3 6 • 9
7 •
5
·27
1 4 2 9
:::.
CHAIN DIVISION
123 -:- 2.5 -:- 9
F
OFF
.r
CDww
w8m
[!]
=
=
I!I
I 2 3 •
2 • 5
9 •
5 • 4 6 6 6 6 6 6 6 6 6 6
....
=
CONST ANT DIVISION
123 -:- 16
456 -:- 16
789
-:- 16
NOTE:
Second entry
becomes constant.
DEC 4
OFF
.r
[!][IJ[IJ
CDC!J
[!)[!](!J
W(!Jm
=
EI
II
EI
1 2 3 •
1 6 •
7
·68 7 5
456 •
1 6 •
2 8 • 5
000
789 •
1 6 •
49·3125
....
=
=
=
4) MIXED CALCULATION (1)
Instruct Entry on keyboard ! Touch Printing
Problem
1 4 7
147 x 25.8+65.4-789 F
2 5 • 8 =
3.2
OFF
3, 7 9 2 • 6
.r
+~
6 5 • 4 +
.,
3, 0 6 9
()
3,069
3 ·2 =
959
• 062 5
3, 0 6 9 . *
-12-
x

5) POWER CALCULATION
Problem Instruct Entry on keyboard Touch Printing
174
DE CO
OFF
.r
OJGJ
a
e
II
I!J
I 7·
17·
289·
1 7 •
289·
4,9 13·
I 7·
4, 9
13·
8 3,52 I·
x
=
x
=
x
=
6) ACCUMULATIVE MULTIPLICATION AND DIVISION
Problem Instruct Entry on keyboard Touch Printing
12 x 34 -;- 5
+)67 x I3-;-4
Subtotal 299.35
DEC 2
OFF
.r
OJ0
0 0
~
a
1:1
II
12·
34·
5 •
8 1 .6 0
x
=
+
.6
-) 34 x 56 -;- 7
Total 27.
35
00
OJ0
0
a
1:1
II
2 I
6 7 •
I 3 .
4 •
7 • 7 5
x
=
+
Subtotal .....
......... ....... ...... .. .. . .. .... .. . ............. .. .. .. . .. .. .... .. ...
00
~0
0
II
a
1:1
e
2 9 9 • 3 5
3 4 •
5 6 •
7 .
2 7 2 . 00
0
x
=
II
272·00
-
Total ....... .. ................ ...... .. ............
............ . .. . .. . .. .......... ..
I
(5 - 1ine Feed) ct 2 7 • 3 5 *
- 13 -

7) PERCENT AGE CALCULATION
Problem Instruct Entry on keyboard Touch Printing
5% of
123
42
--
168
DEC 2
OFF
r
[D[!J[IJ
0
0[!J
[D00
a
II
=
II
I 2 3 •
5 •
6 • I 5
42·
168 •
2 5 • 0 0
x
%
%
-
8) DISCOUNT CALCULATION
Problem Instruct Entry on keyboard Touch Printing
$5800 less
15 %
Discount
COST 55800
DISCOUNT S 870
NET 54930
DEC2
OFF
r
0m§
aITJ0 a
m
m
5,8 00 •
~ .
870·00-
4,9 3 0 • 0 0
x
*
9) ADD-ON CALCULATION
Problem Instruct Entry on keyboard Touch Printing
55800 plus 5% Tax
COST 55800
TAX
$ 290
TOTAL 56090
DEC 2
OFF
r
0C!J §]
0 a
m
51
5,8 0 0 •
5 •
290 ·00
6, 090 ·00
x
%
*
-14 -

10) MIXED CALCULA nON (2)
Entry on keyboard Printing
Problem Instruct Touch
2.00+S3. 1 5-23¢ DEC 2 0 ·
05
x
.... ·· · ····· · ···· ······8@J(I)
m
plus 5% tax ADD
2 ·o0
+B
ru8
• 3 5
r 0CD[IJ
= · I +
0 ·2 -
....
rum
10.05 CONSTANTI · ····
.......... ..
=
Subtot al ... .... ........ ... . ... . ....... .. .............................................. .. . 4 ·9 2
<> m 4 9 2 =
III ·
5% tax ........ ............ ............ .. ..... .. .......................... .. ........... .. . .. .. ... .. . ..... .. .. 0 2 4
· +
Total
......... .. . .. .....
.. .......... ... .. ...... .. ............................. .. ....... 5 I 6
£I
· *
(5 -line Feed)
S5.00 plus 5% tax 5 o0
[IJ8
+B
III= 0 o 5 x
·
5 ·
00
=
0 2 5
· +
5 2 5
t:J
*
(5- lin e Feed) I 7 7 6 .o
704
-#
No . 1776.0704 C
c=l CDGJGJ w 8@]GJ@]l1J
S50.00 + 52.50 5 0 o0
(I)@]8
·
+B
-S3.75 + 50¢ = 2 5 0 +
ru[IJ @]
·
3 "I 5 -
-53.00
-25 ¢
0GJ[IJ
II
= ·
plus 5% tax 0 ·5 0
(I)[!J
+
II
= 3
·00
-
08
0 2 5 -
fIl[IJ
II
·
Numb er- or -items ......... .. . .. ..... ..
........... .. . .. ......... .. ......... .. ........" .. . 6 . N
m
Check 4 6
00
m ·
<>
III 0 o5 x
·
4 6 · o0 =
2 3 0 +
·
4 8 3 0
t:J
· *
(5-line Feed)
II) DIVISION AND REMAINDER
Problem Instruct Entry on ke yboard Touch Printing
500
-;- 12
DECO
OFF
r
(I)§)
[D lIl
=
II
II
500 •
1 2 •
4 I •
8 •
=
R
-15 -

6
5
12) RECIPROCAL CALCULATION
Pr inting
Pro blem In s truct Entr y on keyboar d T ou ch
2 3 · x
F
t:i
wlIJ
4 · =
OF F [I)
23 x 4 + 5
II
9 2 ·
+~
+
[I)
+
9 7
<)
m
= 9 7 ·
=
[!]
6
D · !
9 7 · =
ED
Answer ....................... .. .... .. .... ... .
.. .................... .. .... .... .. .. .... ..... 0
·06
I 8 5 5
670
I
9 7
t:J
· *
(5 -line Feed)
13) MIXED CONSTANT MULTIPLICATION
Problem Instruct Entry
on keyboard
Touch
Printing
4
x5-:- 6 x 7
4 x 5
-:- 6 x (- 9)
4xS-:-6x17
DEC 2
OF F
+
[I)
[I)
[!J
0
am
m0
t:i
=
t:i
iii
a
iii
4 ·
5 ·
6 ·
7 •
2 J • 3 3
3 · 33 3 3 3 3 3 3 3 3 3
2 9 ·99
-
3 •
333 3 3 3 3 3 333
1 7 •
5 6
·6 6
x
x
=
x
x
=
- 16-

0
14) MEAN VALUE CA LCULA TION
Entry on keyboard
To uch Printi ng
Problem Instruct
Samples 3 2 • 8 +£.
DEC 1 rIJ08[!J 0
32 .8 2 8 • 2
OFF
0m80
+
0
28.2
5/4
a 3 3 • 3 +
rIJrIJ 8 rIJ
33.3
34·
I
rIJ rn8CIJ 0 +
34 .1
3 I • 3 +
rIJCIJ8rIJ
0
31.3 I 5 9 • 7
B 1
59 • 7
1:1
m 5 • N
5 •
~
I!I
ME AN VALUE............. .................. .. .. .. ..
.............. .. .. . .. .. .. .. . ......... ..
3 I..
.. . ... ...... .. .. .. • 9
I 5 9 • 7
t:J
*
(5-line Feed)
15) PERCENTAGE DISTRIBUTI ON
Problem Instruct Entry on keyboard Touch Printing
321 = 20.50%
456 = 29.12%
789 = 50.
38 %
15 66 = 10 0.00%
DEC4
OF F
5/ 4
rIJ0ITl
rn(I][I]
mmm
0
0
0
1:1
B
EI
3 2 1
·0 000
4 56 • 0 0 0 0
789 • 000 0
789 • 000 0
1,56 6 ·0 000
1, 566 ·0000
o . 503 8
+ D
+
+
0
~
o (I] [I]
EI
4 5 6 •
1,566 ·0000
o ·29 I 2
~
lIJ00J
EI
3 2 1 •
1,5
66 ·0 000
o . 2 0 5 0
~
(5-1 ine Feed)
CJ
1,566 ·0 000
*
- 17-

16) CORRECTION OF ERRONEOUS KEY TOUCH
Problem
Instruct Entry on keyboard
Touch
Printing
123 x 456
123 x 456
123 --;- 4
F
OFF
.r
mm0
0C!JlIl
[!J[IHIl
mm0
mmm
mm0
[!J
m
II
II
=
m
II
~
= II
1 2 3 •
4 5 6 •
5
6,0 8 8 •
123 •
456 •
5 6
,0 8 8 •
123 •
4 •
3 0 • 7 5
x
=
x
=
x
=
- 18-