VII GE HIGH SPEED CARD READER by wbf21256

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									                                VII GE HIGH SPEED CARD READER


GENERAL DESCRIPTION
                                                          computing operations and with other input-output of
                                                          information into and out of the central processor.
                                                          Cards a r e fed singly by a vacuum pick-off, and a r e
                                                          moved by a moving belt past dual photoelectric read
The GE high speed card reader (Figure VII-1) is a         heads where they a r e read column by column (serially).
free-standing unit which operates through a controller,   The cards may be read in three modes: 12-row
but not through the controller selector. It reads stan-   binary, 10-row binary, and Hollerith (decimal). The
dard 80-columnpunched cards in continuous-feedmode        same instructions a r e used in programs for the 1000
a t a maximum speed of 1500 cards per minute. It reads    card per minute reader a s a r e used for the 400 card
in single-feed mode, with a Halt CardReader instruc-      per minute reader and card data formats a r e the same
tion after each card, at a speed of 850 cards p e r       for both. (See Section VI of this manual for a descrip-
minute. Card reading can proceed simultaneously with      tion of the three modes.)




                                    Figure VII-1. GE High Speed Card Reader
Card Reader Controller                                      card moves with the belt, between plate guides, and
                                                            between tension rollers and stub rollers. The card
                                                            moves through the read station, around the turn-around
The controller consists of two pluggable modules (D         roller, and into the stacker, where riffle a i r a t the
and E) which a r e housedinthe first rack of the central    output gate again assists the card movement.
processor. All communication between the central
processor and the card reader is providedby the con-
troller which is connected by cable to the central
processor and to the card reader. Basic timing for the      T H E SENTINEL W O R D
controller is from the centralprocessor, but the speed
a t which data is transmitted is dependent on the timing
of the card reader. Card datais sent from the reader        It is important that the operator understand the meaning
to the controller, and the controller in turn sends the     and effects of the reader's checking features. The
data to the central processor. Data in 10-row and           very last word formedin the reading of a card is called
12-row binary modes is transferredwithout modifica-         a 'sentinel' word o r a 'synchronization' word. This
tion, but data received in the decimal mode is converted    word performs many useful functions. It can be inter-
to BCD by a decoding matrix in the controller.              rogated by the program and, if necessary, can be
                                                            transferred to the A register where it can be read
                                                            from the A register of the console. The sentinel words
                                                            vary slightly in the three different modes, but the
Card Reader Mechanism                                       modes have the following in common:
                                                                 Bit Position
Both the input hopper and the stacker have a 2000
card capacity. They can be easily loadedand unloaded                 0          When set to 1 indicates the last word
while the reader is in operation. The reader has its                            of card was read
own power supply, a blower source, and a vacuum
source. It has the necessary logic to provide the timing             1          When set to 1 indicates the last card
to tie into the logic of the central processor and to                           in hopper has been read
provide e r r o r checking within the reader.
                                                                    16          When 0 indicates stacker full
Card reading is initiated by a signal from the central
processor. This signal causes a coil to pull back the               18          When 0 indicates a read (synchro-
actuators in front of the moving belt in the feed gate at                       nization) e r r o r
the end of the input hopper. A combination of a vacuum
and riffle air a t the gate assures the fast movement of            19          When 0 indicates input hopper empty
a single card. In the transport area, (Figure VII-2) the                        and EOF is set




                                      Figure VII-2. Card Transport Area
The decimal mode has a checking feature which the                         (3) Last word of c a r d and stacker i s full
binary modes do not have -- a check for an invalid
character. Detection of an invalid character causes a                               10 110 000110000110111 (octal2606067)
Q to appear in the 17th bit position of the sentinel word.
The sign position of the word containing one o r m o r e                  (4) Last word of card and an invalid character
invalid c h a r a c t e r s i s also s e t to 1 s o the word can be
identified.                                                                         10 110 000 110000 111011 (octal 2606073)

Section VI describes the formation of memory words                        (5) Last word of c a r d and a read e r r o r
from c a r d columns 1 through 80. Because 84 read
pulses a r e generated f o r each card, words a r e formed                          10 110 000 110 000 111 101 (octal 2606075)
in memory from data produced by read pulses 81
through 84. Eighty three pulses occur before the end                      (6) Last word of card and the input hopper empty
of c a r d i s reached. The 84th pulse occurs after the                       and EOF i s set.
end of the card, causing the c a r d reader to send all
ones.      The following i s a summary of the memory
words formed by the 84 read pulses for each mode of
c a r d reading.
                                                                      10-Row       Binary    Mode

Decimal        Mode
                                                                      C a r d s a r e repeatedly read into the s a m e 2-cardmem-
                                                                      o r y locations beginning a t location Y, a s follows:
C a r d s a r e repeatedly read into the s a m e 4-cardmem-
o r y locations, beginning a t location Y, a s follows:



                                                                      The following memory words a r e formedby the 84 read
                                                                      pulses:

                                                                          Card Columns           Memory Words

                                                                               1 - 80            40 words of 20 binary bits
The following memory words a r e formed by the 84 read                                           each
pulses:
                                                                              81 - 82            41st word of all z e r o s
      Card Columns             Memory Words
                                                                              83 - 84            42nd word, a sentinel word
           1   - 78             26 words of 3 BCD charac-                                        a s shown in the following
                                t e r s each                                                     examples

          79 - 81               27th word of 2 BCD charac-            Examples of sentinel words for the 10-row binary mode
                                t e r s and a space character         are:
                                (octal 60)
                                                                           (1) Last word of card, no e r r o r conditions
          82 - 84               28th word, a sentinel word
                                of 2 space characters and
                                6 check digits a s indicated
                                in the following examples                  (2) Last word of l a s t c a r d in hopper has been
                                                                               read but EOF was not set, no e r r o r conditions
Examples of sentinel words for the decimal mode a r e :
                                                                                     11 000 000 001 111 111 111 (octal 3001777)
      (1) Last word of a card, no e r r o r conditions
                                                                           (3) Last word of c a r d and stacker is full
                 10 110 000 110 000 111 111 (octal 2606077)

      (2) Last word of last c a r d in hopper has been
          read, but EOF was not set, no e r r o r col~ditions              (4) Last word of c a r d and a read e r r o r
                 11 110 000 110 000 111 111 (octal 3606077)                          10 000 000 001 111 111 101 (octal 2001775)
     (5) Last word of c a r d and input hopper empty and      ERROR CONDITIONS
         EOF i s s e t

               11 000 000 001 111 111 110(octal 3001776)      The following e r r o r conditions a r e described s o that
                                                              the operator can learn to identify the type of e r r o r
                                                              when i t occurs. Remedial action by the operator i s
                                                              explained wherever applicable.
12-Row Binary Mode


C a r d s a r e read into 84 successive memory wordloca-      Feed Error
tions, using only bit positions 8 through 19 of each
word.        The following memory words a r e formed:
                                                              A feed e r r o r occurs when the c a r d reader is operable,
   Card Columns           Memory Words                        c a r d s a r e in the hopper, yet a c a r d fails to feed when i t
                                                              is called for. At the time of such an e r r o r , the fol-
        1 - 80            80 words of 12 binary bits          lowing occurs:
                          each
                                                                   1.    On the card reader, the FEED ERROR light
       81   - 83          May be anything                                comes on.

                          A sentinel word having check             2.    On the control console, the CARD READER
                          digits a s indicated in the                    READY light goes off.
                          following examples
                                                                   3.    The program continues to call f o r a c a r d
                                                                         (program is most likely in a loop).
Examples of sentinel words for the 12-row binary
mode a r e :                                                  Operator action to correct the e r r o r and continue the
                                                              program is a s follows:

     (1) L a s t word of card, no e r r o r conditions             1.    C o r r e c t the feed by placing the c a r d t o b e fed
                                                                         a t the entrance of the feed gate, flushagainst
                                                                         the riffle a i r housing. ~ a k s i r e remaining
                                                                                                             e
                                                                         c a r d s a r e properly aligned.

     (2) L a s t word of last card in hopper has been              2.    Unlatch the feed plate if i t had been latched.
         read, but EOF was not set, no e r r o r conditions
                                                                   3.    Depress the OPERATE switch on the c a r d
               11 000 000111 111 111 111 (octa13007777)                  reader.

                                                              This procedure may be repeated again if card feed
     (3) Last word of card, stacker full                      does not start.

               10 000 000 111 111 110 111 (octal 2007767)

                                                              Read Error
     (4) Last word of card and a read e r r o r
               10 000 000 111 111 111 101 (octal 2007775)     A read e r r o r occurs when there is a f a i l u r e of the light
                                                              source, failure of the s o l a r cells o r amplifiers, o r an
                                                              e r r o r in timing (synchronization). Phototransistors,
     (5) Last word of c a r d and input hopper empty and      located along the moving belt in the transport a r e a ,
         EOF s e t                                            check the card's movement against the timing gear.
                                                              Checks a r e made between the feed gate and the read
               10 000 000 111 111 111 llO(octa1307776)        station and the read station and the output gate. At the
                                                              time of a read e r r o r , the following occurs:

I t should be noted that the operator h a s direct control          1.    The READ ERROR indicator on the reader i s
over whether bit position 19 of the sentinel word                         illuminated.
becomes a 0 o r a 1. He should make s u r e that the EOF
indicator is on only when the programmer h a s asked                2.    A Q is placed in the 18-bitpositionof the sen-
f o r the EOF switch to be activated.                                     tinel word.
No operator corrective action i s required. Unless                  Stacker     Full
corrective action i s programmed, the leading edge of
the next c a r d (after the one causing the read e r r o r ) will
turn off the READ ERROR indicator. The read e r r o r               Each time a c a r d i s read, a check i s made to determine
may occur while only a portion of the c a r d i s being             whether the stacker i s full. If it i s full, the following
read. When this happens, only partof the data may be                occurs:
in e r r o r , and possibly none of i t i s in e r r o r .
When the program causes reading to halt a t the time                     1.   If c a r d s a r e being read in the continuous mode,
of a read e r r o r , the programmer will provide the                         c a r d s continue to be fed f o r about 50 c a r d s
necessary instructions f o r the operator. In this case,                      beyond the stacker full signal, a t which time
the READ ERROR indicator remains lit until the                                a safety inhibit-feed switch i s activated to stop
OPERATE switch i s depressed.                                                 c a r d reading.


                                                                         2.   If c a r d s a r e being read in a noncontinuous
Hopper Empty                                                                  mode, a HCR command stops the c a r d feed
                                                                              and causes the controller to become 'ready.'
Each time a c a r d i s read, a check i s made to determine
whether the input hopper i s empty. If i t i s empty,                    3.   The stacker full switch sends a signal to the
cards, of course, do not feed and the following occurs:                       controller which results in the placing of a 4
                                                                              in the 16-bit position of the sentinel word.
                                                                              (In the continuous mode, this could occur to
     1.    The reader signals the controller, and the                         all 50 c a r d s fed beyond the stacker full sig-
           controller becomes 'not ready.'                                    nal.)


     2.    On the control console, the CARD READER                       4.   On the c a r d reader, the BIN FULL light comes
           READY light goes out.                                              on.


     3.    On the c a r d reader, the OPERATE switch                     5.   On the control console, the CARD READER
           turns red, indicating an inoperable condition.                     READY light goes out.


     4.    On the card reader, the BIN EMP light comes              To continue operation, the operator must take the fol-
           on.                                                      lowing action:

                                                                        1.    Remove c a r d s down to the c a r d removal
     5.    A 1 is placed in the l-bit positionof the sen-                     m a r k on the side of the stacker.
           tinel word.    If the EOF switch had been
           depressed by the operator, a 0 is alsoplaced
           in the sentinel word, in the 19-bit position.                 2.   Lower the stacker plate until i t r e s t s against
                                                                              remaining cards.

If the program contains a test f o r reader ready, it
remains in a loop until the operator takes the following                 3.   Depress the OPERATE switch on the c a r d
corrective action.                                                            reader.

     1.    Loads c a r d s into the hopper.
                                                                    Cards will continue to feed. The sentinel word indi-
     2.    Unlatches the pusher plate and places i t in             cates to the programmer that the stacker has been full.
           position against the cards.

     3.    Depresses the OPERATE switch on the card
           reader.                                                  Phantom Feed


The controller will now become ready and c a r d s will             A phantom feed is the occurence of a c a r d passing
continue to feed. Only the sentinel word indicates to               through the feed gate without being called f o r by the
the p r o g r a m m e r that the bin has become empty.              program. When this occurs, no information from the
r




     CI                              a                L                     a              A                                n
                                                            READ                FEED           BIN EMP           END
               OFF           ON          OPERATE            ERROR                              BIN FULL        OF FILE
     d                w



                                         Figure VII-3. Reader Control and Indicator Panel


    Holding a switch down could cause an error. See Table                             riffle a i r housing, thereby raising the
    V for a summary of the functions of controls and
     I                                                                                bin-empty switch (Figure M-4).
    indicators. Figure VII-4 is a view of the top of the
    card reader.                                                                c.    Joggle the edges of a handful of cards on
                                                                                      the top surface of the card reader to align
                                                                                      the cards. (Only a slight amount of jog-
          1.    Depress the card reader power ON switch,                              gling is necessary -- mainly to prevent
                and wait for the sound of the blowers (about                          cards from protruding above the entrance
                6 seconds) before proceeding. The switch                              to the feed area. (Static electricity does
                glows amber when power is on.)                                        not cause difficulty in using this card
                                                                                      reader.)
          2.    Load cards into the input hopper a s follows:
                                                                                d.    Place the cards in the hopper, face first
                a.   Slide the hopper's pusher plate (feed                            and 9-edge down.
                     plate) to the top of the hopper where it
                     will remain held by a magnetic latch.                      e.    Repeat steps c and d until all cards a r e
                     (BIN FULL indicator will glow)                                   loaded o r until the input hopper is full.

                b.   Place the first cardof the deck, face first                f.    Slide the feed plate dourn against the card
                     and 9-edge down, so that the leading edge                        deck. (BIN FULL indicator light will go
                     is in the feed throat and flat against the                       off.)




                                                   REMOVA.




                                                                                 '1
                                                                                LL SWITC




                                           Figure VII-4. Top View of the Card Reader



    @En225
                                                                   VII- 7
     3.   Check to s e e that the stacker pusher plate i s                   b.   Raise option switches (7 through 19) to
          a t the bottom of the stacker s o it r e s t s against                  s e t the operand portion of the instruction
          the output gate.                                                        to the octal representation of the memory
                                                                                  location of the f i r s t instruction of the
     4.   If the READ ERROR switch i s illuminated,                               program.        F o r example: If the f i r s t
          depress i t to turn out the light and clear the                         instruction of the program i s inmemory
          circuitry.                                                              location (2146, octal), the switches should
                                                                                  be s e t a s illustrated:
     5.   Depress the OPERATE switch. The OPER-
          ATE indicator will glow green if the BIN EMP
          and BIN FULL indicators a r e not lit. This
          also c l e a r s the FEED ERROR indicator.

     6.   Check to make s u r e that the EOF switch i s
          s e t correctly. The EOF indicator light should
          be off unless the programmer has specified
          that the switch be on after loading cards.
          (The EOF pushbutton i s a 2-position switch
          and indicator which i s lit when i t is on.)                  3.    Depress the A to I switch to transfer the
                                                                              branch iilstruction to the1 register f o r execu-
     7.   Follow the applicable procedure a t the con-                        tion.
          sole of the central processor a s described
          below.                                                        4.    Return the AUTO/'MANUALswitch to AUTO.

Procedures f o r loading c a r d s into memory depend                   5.    Depress tile START switch to transfer control
upon whether the c a r d s contain a program o r merely                       to the program which automatically feeds the
data for use after the program i s in memory. In the                          r e s t of the cards.
following, i t i s assumed that power to the central pro-
c e s s o r i s on, the INSTR/WORD switch i s s e t to INSTR
and the AUTO/MANUAL switch i s s e t to MANUAL.                    Addina Cards. Although the input hopper holds 2000
                                                                   cards, it i s sometimes necessary to add c a r d s while
Loading a P r o g r a m Deck. The f i r s t c a r d must be a      the reader i s in operation and the hopper i s partially
loader c a r d punched in binary format. (All switches             full. Cards should be added when the c a r d deck in the
r e f e r r e d to a r e on the console of the central pro-        hopper i s a t least 5 inches thick. If too few c a r d s
cessor.)                                                           remain, they fall over a t the feed gate and cause a
                                                                   misfeed. The procedure for adding c a r d s i s a s follows:
     1.   Depress the RESET ALARM switch.

     2.   Depress the LOAD CARD switch. (This loads                     1.   Joggle a handful of c a r d s on the top of the
          the f i r s t c a r d image into memory beginning                  reader.
          with location 00000.)

     3.   Depress the RESET P switch.                                   2.   Slide the feed plate back, but not a s f a r a s the
                                                                             latched position if card feed i s to continue
     4.   Return the AUTO/MANUAL switch to AUTO.                             without stopping.

     5.   Depress the START switch to begin automatic
          feed of the c a r d s under program control.                  3.   Add c a r d s to those in the bin with one hand
                                                                             while holding the feed plate with the other.
Loading a Data Deck. It is assumed that there i s a
program in memory and that i t will load the data c a r d s
a s they a r e needed.                                                  4.   Slide the feed plate down against the c a r d
                                                                             deck.
     1.   Depress the RESET ALARM switch.

     2.   Manually introduce a branch instruction into                  5.   Repeat Uiz above foilr steps until all c a r d s
          the A register, using the console switchesas                       a r e added o r the hopper i s full.
          follows:

          a.   Raise option switches 0, 2, arid 3 to s e t             6,    After the last card of the program o r data has
               octal code 26 for t!e branch instruction                      bekn loaded, check to s e e whether the END O F
               BRU.                                                          FILE button must be on.
Removing Cards. When the program and/or data c a r d s               on the inside edge of the stacker (labeled the
number more than 2000, i t i s necessary to remove                   'card removal mark' in Figure VII-4). The
c a r d s while the program i s running, a s follows:                button indicates where c a r d s must be to acti-
                                                                     vate the stacker riffle a i r switch.        The
     1.   Slide the stacker's pusher plate back, butnot              increased riffle a i r turned on by the switch
          f a r enough to depress the stacker full switch            is needed to prevent feed e r r o r s .
          if c a r d feeding i s to continue without stop-
          ping. *
                                                                3.   Slide the pusher plate down until i t r e s t s
     2.   Remove c a r d s to but not beyond the red button          against the card deck.




    If either the feedplate o r the stacker plate i s latched
during reading operations, card feeding will stop and
the READER READY indicator on the console will go
off. To continue reading (after adding o r removing
c a r d s and returning the feed o r stacker plate to oper-
ating position) the operator must depress the OPER-
ATE switch on the c a r d reader.
                                                 TABLE VI

                  FUNCTIONS O F CONTROLS AND INDICATORS
                     FOR T H E GE HIGH SPEED CARD READER

                                                                                                   J
                                  Control o r
    Location                      Indicator                 Function

    C a r d reader control        O F F switch              Turns power off to c a r d
    and indicator panel                                     reader.


                                  ON switch and indicator   Turns power on to card reader.
                                                            Switch glows amber when power
                                                            i s on. (Central processor power
                                                            must be on before this switch
                                                            i s operable.)

                                  OPE RATE                  Readies circuitry f o r on-line
                                  switch and indicator      operation. Switch glows green
                                                            when ready, red when not
                                                            ready.

                                  READ ERROR indicator      Indicates that there was a
                                                            malfunctioning lamp o r
                                                            photocell in the read a r e a o r
                                                            a synchronization e r r o r .
                                                            Glows red a t time of read
                                                            error.
                                  FEED ERROR indicator      Indicates that the program
                                                            called f o r a c a r d but no
                                                            c a r d was fed even though
                                                            c a r d s a r e in the input hopper.
                                                            Glows red a t time of feed
                                                            error.

                                  BIN EMP indicator         Indicates (by glowing red)
                                                            when card input hopper i s
                                                            empty.

                                  BIN FULL indicator        Indicates (by glowing red)
                                                            when stacker i s full.

                                  END OF FILE switch        Sends end-of-file signal
                                                            to the central processor
                                                            when l a s t card h a s been
                                                            read. Glows amber when on.
I

    Protrudes from riffle         Bin Empty switch          Stops c a r d feed and activates
    a i r housing a t lower end                             the BIN EMP indicator
    of input hopper


    On bottom of stacker          Stacker Riffle Air        Increases considerably the
                                  switch                    amount riffle a i r a t the
                                                            entrance to the stacker.
                                                            Switch i s activated by the
                                                            c a r d s which push over it.
                               TABLE V'I (CONT.)


                          Control o r              Function
   Location               Indicator

   On bottom of stacker   Stacker Full switch      Stops card feed. It i s acti-
                                                   vated when the c a r d pusher
                                                   plate moves over it.


   Control Console        CARD READER READY        Indicates when c a r d reader
                          light                    i s ready for operation. Glows
                                                   green when ready.



                          LOAD CARD switch         Starts c a r d s feeding through
                                                   the c a r d reader.


                          CARD READER a l a r m    Indicates, when lit, that c a r d
                          light (red)              reading was attempted while
                                                   the card reader was not
                                                   ready (not s e t up, busy, mis-
                                                   feed, o r c a r d jam).


                          CARD READER READY        Indicates, when lit, that the
                          light (green)            c a r d reader i s in a 'ready'
                                                   status.


                          RESET ALARM switch       C l e a r s any alarm condition
                                                                         L
                                                   ( A U T ~ / M A N U A switch must
                                                   be in MANUAL position before
                                                   this switch i s effective)


                          LOAD CARD switch         Causes feeding and reading of
                                                   one c a r d (punched in binary
                                                   format) into memory location
                                                   00000 (AUTO/MANUALswitch
                                                   must be in MANUAL position
                                                   before this switch i s effective)


                          RESET P switch           Resets the P register to z e r o


                          AUTO/MANUAL switch       Controls automatic o r manual
                                                   mode of operation


                          START switch             Initiates c a r d reading




@En22S
                                         VII- 11
SPECIAL PROCEDURES                                                          2.    Place the feed plate against the card.

                                                                            3.    With the computer in manual, place in the A
                                                                                  register the instruction RCD (2550000)8 for a
Clearing Card Jams                                                                decimal card o r RCB (2500001)8 f o r abinary
                                                                                  card. Transfer the contents of theA register
                                                                                  to the I register by depressing the A to I
C a r d jams can result from either malfunctioning                                switch.
equipment o r from c a r d s in poor condition. The oper-
a t o r can usually c o r r e c t jams by simply removingthe                4.    Depress the START buttonon the console. The
jammed c a r d o r cards. No m o r e thanthree c a r d s a r e                    card reader will read that c a r d into memory
e v e r in the transport a r e a a t one time. Procedures f o r                   starting a t location 0000.
removing c a r d s a r e a s follows:

     1.    Remove the cover to the transport area. This                     5.    Place in the A register the instruction WCD
           i s easily done by the operator if he stands to                        (2500002)8 to punch a decimal c a r d o r the
           the r e a r of the reader and slides the upper                         instruction WCB (2500003)8 to punch a binary
           back panel toward him, pulling it by the handle                        card. Transfer the contents of theA register
           (see Figure VII-2).                                                    to the I register and depress START. The
                                                                                  c a r d punch will punch a c a r d from memory
     2.    Locate the a r e a of the jam. Itwill most likely                      starting with location 0000.
           be a t the feed gate, the read station, o r the
           output gate.
                                                                            6.    Remove the reproduced c a r d from the c a r d
     3.    Remove the tension on the jammed card and                              punch and visually compare i t to the original
           the transport belt by pulling the hooks attached                       c a r d by placing the two c a r d s together and
           to the tension roller o r rollers closest to the                       looking through the punched holes. If the new
           card.        (By pulling on the metal hook-like                        c a r d is not correct, repeat the reproduction
           handle on the side of the tension roller, the                          procedure. If a c o r r e c t c a r d i s notproduced
           r o l l e r can be moved about a quarter of an                         after the third try, the original c a r d proba-
           inch away from the belt, freeing the card.)                            bly cannot be read and must be reproduced
                                                                                  by other means.
     4.    Remove the card, cards, o r any pieces of
           c a r d s if one became torn. Do this only by
           pulling the c a r d with one's fingers; never use
           any tools on the equipment.                                 Reconditioning Cards and
                                                                       Caring for Cards
     5.    If a c a r d was torn and there is any possibility
           that pieces of c a r d remain in the transport
           a r e a , move two o r three c a r d s by hand from         These subjects a r e covered in Section VI and, with one
           the feed gate to the output gate. To do this,               exception, apply equally well to c a r d s used with the
           place a c a r d in the mouth of the feed gate               high speed c a r d reader.          The exception i s that
           (from the input hopper) and move the trans-                 thorough joggling of the c a r d s i s not a s necessary f o r
           port belt by hand by turning the turn-around                the high speed c a r d r e a d e r a s i t is f o r the 400 c a r d
           roller clockwise until the c a r d has passed               p e r minute reader.
           into the stacker.

     6.    If the c a r d s in step 5 did not p a s s the length
           of the transport a r e a f r e e l y , i t means tornbits   E R R O R S A N D OPERATOR
           of a c a r d remain, and a service engineer must
           be called to remove the card fragments.                     CORRECTIVE ACTION



Reproducing Cards                                                      Operator Checklist


C a r d s may be reproduced by the c a r d reader a s fol-             If the operator neglects to do any of the following, the
lows:                                                                  c a r d reader will fail to operate correctly and may
                                                                       cause halts during runs.
      1.   Place the c a r d to be reproduced in the input
           hopper, a t the feed throat, in position for                      1.    Turn on c a r d reader power and depress the
           reading.                                                                OPERATE switch.
2.   Set up the deck correctly: remove superfluous             5.   Clear the CARD READER alarm on the con-
     remarks cards, use correct loader card, and                    sole (depress RESET ALARM).
     the correct transfer card.
                                                               6.   Unload the output hopper.
3.   Square up the deck before loading.
                                                           Table VII summarizes some of the e r r o r conditions
                                                           the operator may encounter in card reader operation.
                                                           As in all peripheral operations, half of the battle i s
4.   Release the feed plate in the input hopper.           won when the difficulty has been identified.




                                                 TABLE VII


                       GE HIGH SPEED CARD READER CONDI-TIONS

                                                               m
       E r r o r Condition        Possible Cause                    Corrective Action

       Reader feeds one           Necessary loader card             Add loader card o r put deck in
       card and halts             not in deck o r cards             order. Reload cards and restart
                                  out of order                      read operations.


       CARD READER alarm     There was a phantom                    Remove cards from stacker and
       light comes on, CARD  feed                                   return to nearest restart point
       READER READY light is                                        o r to beginning of program.
       off, computer halts

       FEED ERROR light i s       There was a feed                  Check and reposition card at
       on, CARD READER            error                             feed gate. Depress the OPERATE
       alarm i s off, cards                                         switch to continue reading cards.
       a r e not feeding


                                  Card will not load                Smooth edge of card. If it does
                                  because its leading               not feed on next attempt,' replace
                                  edge i s wrinkled                 card with newly reproduced one,
                                                                    depress OPERATE and continue
                                                                    reading cards.


       READ ERROR indicator       Program called for                Follow directions given by pro-
       comes on, cards a r e      a stop on a read e r r o r        grammer for read e r r o r s . (There
       not feeding                                                  may be a typeout of directions.)


       CARD READER alarm          Program tried to                  Stop the run and return the
       light and ECHO             execute a read                    program to the programmer.
       ALARM Lights come          command while the
       on, CARD READER            reader was not ready
       READY light i s off
                                        TABLE VII (CONT.)




                                                              Add c a r d s to hopper, unlatch feed
on, CARD READER                                               plate, and d e p r e s s the OPERATE
READY light i s off,                                          switch to continue reading cards.
c a r d s a r e not feeding
(END O F FILE light
may also be on)


FEED ERROR light i s              h e r e i s a c a r d jam   If possible, remove c a r d causing
on, CARD READER                                               jam, return p r o g r a m to n e a r e s t
a l a r m i s off, c a r d s                                  r e s t a r t point o r to the beginning.
a r e not feeding,                                            (See paragraphs on Clearing
t r a n s p o r t mechanism
i s shut down


                                                                                 from the s t a c k e r ,
CARD READER READY                                                                h e r plate, d e p r e s s
light i s off, c a r d s a r e                                                   switch to continue


                                 The feed plate was           Unlatch the feed plate and
                                 left in the latched          d e p r e s s the OPERATE switch to
                                 position                     continue reading c a r d s .

                                 The s t a c k e r pusher     Unlatch the pusher plate and
                                 plate was left in the        d e p r e s s the OPERATE switch
                                 latched position             to continue reading cards.

								
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