TCA 420, Operating Instructions Manual

Page 1: ...OPERATING Model 420 INSTRUCTION 440 MANUAL CTCA ELECTRONIC CALCULATOR ...

Page 2: ...y memory o Automatic constants in all four functions o Percent add on discount separate register o Punctuation separation of numbers o Add mode with over ride o One touch grand total operation o Bright easy to read display o Double Item Counter counts up to 999 entries o Non Print o Roll over keyboard with 8 digit Buffer Register o Paper release ...

Page 3: ...alculation 2 7 Memory Calculation 3 I Addition and Subtraction 9 2 Multiplication 10 J Division II 4 Mixed Calculations II S Accumulation Calculation 12 8 Invoice Application 14 9 Cross Footing Application 15 10 Percentage Distribution Application 16 11 Percentage of Increase or Decrease Application 16 12 Payroll Application 17 2 ...

Page 4: ... only 9 Clear All Key 10 Clear Key 11 Clear Entry Key 12 Numeral Keys 13 Decimal Key 14 Addition Key 15 Subtraction Key 16 Total Key 17 Non Add Sub Total Key 18 Memory Minus Key 19 Non Print Key 20 Percentage Key 21 Print Key 22 Memory Total Key 23 Memory Sub Total Key 24 Memory Minus Equal Key 25 Memory Plus Equal Key 26 Equal Plus Key 27 Division Key 28 Multiplication Key 29 Equal Key 30 Memory ...

Page 5: ...digits Maximum Decimals 12 digits 2 PRINTING Number of print characters 12 numerals 1 decimal point and 2 symhols Speed 2 5 lines per second Pape r Standard roll pa pe r Widt h 2 l 4 Diameter 2 l 4 Ribbo n 2 color Black and Redl Width 1 2 Length 210 Ribbon Spool Standa rd TYre 3 COMPONENTS LSI 4 VOLTAGE AC I 17V SO 60HZ S POWER CONSUMPTION J8W 6 SERVICE TEMPERATURE 32 0 F 104 0o F 7 DIMENSIONS 9 1...

Page 6: ...re t Round Up 1 or more 3 IFEEDI Advances paper 4 9 ITEM COUNTER 420 only Recalls numher in the item counter register add register and registerl 5 B NON PRI NT Latch Down Turns off print mechanism 6 0 PRINT KEY Prints only the last number when depressed 7 Clears entire machine 8 CLEAR KEY Clears X and function only 9 CLEAR ENTRY Clears keyboard entry not function X or 10 9 numeral keys 11 0 DECIMA...

Page 7: ...d automatically accumulates result in add register 21 0 MEMORY PLUS EQUALS Automatically calculates results of mult iplication and division and adds results in memory 22 0 MEMORY MINUS EQUALS Automatically calculates results of multiplication and division and subtracts results from memory 23 IMol MEMORY SUBTOTAL 24 ill MEMORY TOTAL 25 MEMORY PLUS Adds directly to memory 26 0 MEMORY MINUS Subtracts...

Page 8: ...on should be good quality and high de nsity in ked ribbon 2 Inked Ribbon should be set as shown in figures one I and 2 Spools should latch in place 3 If Ribbon is loose turn spool until ribbo n is taut RIBBON FRAME FIG 1 FIG 2 7 ...

Page 9: ...r roll be certain the end that is to be inserted into the machine is not torn or irregular 2 Mount Paper roll on Paper Holder Insert paper into the slot and depress IFEEDI Key until paper extends beyond tear off blade CORRECT IN CORRECT ...

Page 10: ...Y Decimal A 0 4 C I QJ G 1 23 123 0w GJ G 40 6 0 79 00 TI G 7 q tJ oB II h8 T tJ hk Repeal additi on and suhtrac ti llll A 0 4 IJ00 G 1 23 1 2 GJ 1 23 2 H G 1 23 1 69 G 1 23 Irc dJ 2 10 8 2 4 T 2 16 I n IS6 7tN A 5 4 i w0 G 123 1 23 ElITJ G 0 4SI 7q 2J IJGJ G 7 fN I rc d 2 1 0 G lOT I rc d I llO 9 ...

Page 11: ...lay 12 X L 2 4 DJITJ 0 0 0 El 12 X u 1 n OO J2 J h O Chain J11uhiplicalinn 2 X X 4 2 5 4 0 W GJ 0 0 0 2 X J X 24 6 24 Cnnstan l Jllulliplic lI i ln 12 X 2 2 5 4 D IJ W 0 0 12 X 2 2 l O 12 2UX 12 X 3 TI 0 l 16 c 6 12 X l 0 EJ l 4RC j 4K 12 X 8 B hO OO 60 m 10 ...

Page 12: ... 2 U IJ El I 4 10 Constant division 2 5 4 145 12 145 I QJ8JQJ El 159 12 eDIT 12 144 12 1 2 0 12 01 1 QJ I QD 159 Ll 25 G 1 2 144 G ITJ0 GJ 12 00 12 00 Mixed Calculation Problem Switches Entry Depress Tape Display 123 23 4 X 5 2 5 4 QJ 0 0 0 0 G m G 6 8 G G 123 00 D OO red 100 00 T 100 00 4 X 5 125 00 123 00 100 00 100 00 100 00 25 00 125 00 125 00 11 ...

Page 13: ...4 i 25 QJ mGJ 24 i 25 24 2 T GJ Percentage Calculalion Prohlem 100 X 10 250 25 Percent Add on and Discoun t 125 less Yo Discoun t plus 6 Tax Switches 2 514 2 5 4 2 5 4 Tape Display Depress Entry OJ QiJl2U OJ ITl ITl GJ WG OJ I 8 G W I 100 J Xl X 0 7J I x I m I X 2 2 0 B IO 00 Z I 000 00 0 125 1 2 X 5 l h 25 2 G I IR 75 1111 75 0 I PU5 X 5J 7 LI 7 IJ EJ 125 RR 125 1 H 12 I ...

Page 14: ...0 32 oo M 7X 9 32 00 7 9 03 oo M 63 00 12S M 125 00 Memory Calc with Conswnt 12 X 1 25 12 X 4 25 2 5 4 00 ITJDITJITJ 0 12 X 1 25 12 12 X 7YS 00 I IS OO M 4 25 I X 51 M 100 2JD ITl 7 YS 0 l S 40 M IhlAO M Y 40 101 40 Additi on and Suhtrac tion into Memory 12 4 h 7HY A 5 4 TI0 I IJ C2JITJw 0 0 fill l 23 M 4 56 M red 7 89 M 4 50 1 2 4 50 7 89 4 56 13 ...

Page 15: ...0 0 0 12 X 1 25 12 1 25 5 Items 1 59 Total Discount 2 mIT GJO 2J I 0 15 00 M 24 X 2 9R 1 00 24 2 9R Tax 5 Total IT IJO IJeTI 0 71 52 N1 5X 1 59 71 52 5 1 59 m B 0 8 0 7 95 M 94 47 M 94 47 X 2 O l 7 95 9447 94 47 2 IT EJ 0 5J 1 89 92 58 92 511 X 5 l 1 89 92 58 92 511 5 G 4 63 97 2 1 4 6 1 97 21 14 ...

Page 16: ...58 3 69 13 68 7 74 Grand Total 21 42 Switches EDtry Depress Tape Display Decimal A 5 4 HI 1 23 1 23 GJ 4 56 5 79 mITlru G fJ ITJ0 1J 7 89 13 68 8 13 68 T 13 68 B QJmITJ 1 47 1 47 ITJITl J 4 05 2 58 G 7 74 3 68 0mCIl 8 7 74 T 7 74 21 42 G 21 42 15 ...

Page 17: ...79 00 7kY 0 1J6R OO I 108 00 T Ll61 00 136R J l6R 00 O Ol 0 09 456 456 O l l 0 33 789 7119 0 58 0 511 1 00 T 1 00 Percent of Increase or Decrease Example Sales 1974 Sales 1975 Increase Percent Increase 789 654 00 987 456 00 197 802 00 25 05 Switches Entry Depress Tape Display Decimal 2 5 4 I I 2J TIww 2J I TIw I 0 B 0 B B 987456 00 789654 M 789 654 00 197802 00 987456 00 789654 197802 00 197802 00...

Page 18: ...try EJ D TI I I Kate o Hrs Reg Depress 0 Tape 4 52 0 Displa 52 IT D IT iO T Rate B IKu HO M 1 5 IHO H 7 III D I JJ OT Hrs l 0 0 h 7R 6 78 X H 75 6 71 h 7h 59 JJ M S 3J D OD IT I IT 5 5 1 0 EJ 240 IJOM 240 1 3 X 0 0585 240 1 3 240 1J o QJ OJ IT State Tax EJ 14 05 0 025 14 05 6 00 6 CXl D Il Income Tax Chart mOm I Hospitalization G 0 8 48 03 6 50 74 58T 74 58 M red 165 5S M 61 08 74 51 74 58 74 58 1...

Page 19: ...Sheffield Avenue Englewood New Jersey 07631 201 567 4990 GEORGIA 3955 Pleasantdale Road Su ite 108 Atlanta Georgia 30340 404 449 6390 ILLINOIS 2510 Dempster Suite 106 Des Plaines Illinois 60018 312 298 4260 TEXAS 6350 LBJ Freeway Registry Suite 137 Dallas Texas 75240 2 14 233 7215 CALIFORNIA 3605 W MacArthur Boulevard Suite 708 709 Santa Ana California 92704 714 549 8172 PENNSYLVANIA 1701 So Penns...

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