A to Z Rubber Stamps RAPIDPRINT A Series User manual

RAPIDPRINT INC.
SERVICE MANUAL
DATE/TIME/NUMBERING STAMPS
Models: A-E, V-E and C724-E
AUTOMATIC CHECKSIGNER
Model: C650
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TABLE OF CONTENTS
Page
LIST OF SPECIFICATIONS…………………………………………. 6
INTRODUCTION……………………………………………………… 8
THEORY OF OPERATION………………………………………….. 8
Actuation Of Printing Mechanism…………………………… 8
Automatic Ribbon Advance……………………………………….. 10
Typewheel Operation……………………………………………… 11
OPERATING INSTRUCTIONS……………………………………… 13
Setting Print Wheels……………………………………………….. 13
Stamping An Impression…………………………………………… 14
Description Of Major Assemblies………………………………….. 14
COMMON ADJUSTMENTS………………………………………….. 16
Changing Force Of Imprint………………………………………… 16
Imprint Location…………………………………………………… 16
Installation Of Extended Trigger……………………………… 19
Adjusting Uniformity Of Imprint……………………………… 19
TROUBLESHOOTING GUIDE………………………………………. 20
Machine Does Not Stamp………………………………………….. 20
Gains Time…………………………………………………………. 23
Loses Time…………………………………………………………. 24
Combination Test………………………………………………….. 26
Machine Does Not Stamp Or Advance……………………………. 26
Blowing House Fuses……………………………………………… 26
Ribbon Does Not Reverse…………………………………………. 26
AR-E Wiring Diagram……………………………………………... 27
AR-E w/Visual Counter Wiring Diagram………………………… 28
AN-E Wiring Diagram……………………………………………… 29
AN-E w/Repeat Switch Wiring Diagram……………………… 30
C724-E Wiring Diagram…………………………………………… 31
RECOMMENDED TOOLS…………………………………………… 32
RECOMMENDED LUBRICANTS…………………………………… 32
REPLACEMENT SPACERS………………………………………….. 33
MAINTENANCE………………………………………………………. 34
Changing Ribbon…………………………………………………… 34
Removing Typesection Assembly………………………………….. 35
Disassembling AR-E Typesection………………………………….. 35
Removing Motor……………………………………………….. 35
Removing Retaining Pawls/Springs/Shaft……………… 36
Removing Wheels And Swing Assembly……………………. 36
TABLE 1 Retaining Pawl Springs Color Code……………… 38
Removing Actuating Pawl Assembly………………………... 39
Changing A Unit Wheel………………………………………… 39
Disconnecting Typesection Wires……………………………… 41

TABLE OF CONTENTS
Page
Disassembling AN-E Typesection……………………………….. 45
Removing Rotary Solenoid…………………………………... 45
Removing Retaining Pawls/Shaft…………………………….. 46
Removing Wheels And Swing Assembly……………………… 46
Removing Actuating Pawl Assembly………………………… 47
Disassembling Bottom Frame……………………………………… 48
Removing Ribbon Frame Assembly……………………………… 48
Removing Solenoid Frame Assembly…………………………… 48
Installing Solenoid Frame Assembly……………………………… 49
Replacing Trigger And/Or Switch…………………………………. 50
Replacing Print Coil………………………………………………… 51
Replacing Base Plate/Circuit Board……………………………… 52
ILLUSTRATED PARTS LIST (A-E Models)……………………… 55
General Assembly………………………………………………….. 56
Bottom Frame And Casting Assembly…………………………… 58
Solenoid Frame Assembly………………………………………….. 60
Ribbon Frame Assembly………………………………………… 62
AD-E Type-section Assembly…………………………………. 64
AR-E Type-section Assembly…………………………………. 65
AN-E Type-section Assembly……………………………………. 67
ADN-E Type-section Assembly…………………………………….. 69
ARMT-E Type-section Assembly………………………………… 71
ILLUSTRATED PARTS LIST (C724-E Models)…………………….. 73
General Assembly………………………………………………… 74
Bottom Frame and Casting Assembly…………………………… 76
Ribbon Frame Assembly……………………………………………. 78
Solenoid Frame Assembly………………………………………….. 80
Digital Clock Assembly C724-E………………………………….. 82
ILLUSTRATED PARTS LIST (V-E Models)……………………… 83
General Assembly………………………………………………… 84
Bottom Frame Assembly……………………………………………. 86
Ribbon Frame Assembly……………………………………………. 87
Solenoid Frame Assembly………………………………………….. 88
Clock Assembly…………………………………………………….. 90
ILLUSTRATED PARTS LIST (C650 Model)……………………….. 91
General Assembly…………………………………………………... 92
Ribbon and Frame Assembly………………………………………. 94
Solenoid Frame Assembly………………………………………….. 96

TABLE OF CONTENTS
Page
OPTIONAL FEATURES……………………………………………… 97
Visual Counter…………………………………………………….. 99
Repeat Switch……………………………………………………... 100
Pushbutton Number Advance……………………………………… 101
Pushbutton Stamping……………………………………………… 101
Word Roll………………………………………………………….. 103
RST/RSB Removable Die…………………………………………. 105
Electric Security Lock……………………………………………... 106
Footswitch Number Advance……………………………………… 107
Footswitch Stamping………………………………………………. 107
NOTES ………………………………………………………………….. 109
AD-E “Euromegras Typesection Assy…………………………… 110
AN-E “Euromegras Typesection Assy…………………………… 111
ADN-E “Euromegras Typesection Assy………………………….. 113
ARMT-E “Euromegras Typesection Assy (Version I)…………… 115
ARMT-E “Euromegras Typesection Assy (Version II)…………… 117
ARMT-E “Euromegras Typesection Assy (Version III)…………. 119
ARMT-E “Euromegras Typesection Assy (Version IV)………… 121
Rapidprint Binder Ends (for the end of a binder)…………………… 123

LIST OF SPECIFICATIONS
MODEL AR-E TIME STAMPS
MODEL AN-E NUMBERING MACHINES
These machines are housed in a metal case consisting of two castings of contemporary
design hinged at the back. The exposed surfaces are finished in a durable taupe (brown)
hammer-tone. The stainless steel paper shelf is attached directly to the lower casting. A
tumbler-type lock serves to secure the casting, thereby preventing any tampering with the
machine setting by unauthorized persons. The entire machine rests on four rubber feet
which give the stamp a firm non-scratching base. The length is 10-1/4", the width is
4-3/4", the height is 7-7/16", and the weight is approximately 16 lbs (depending on the
model). All interior parts are specially treated to make parts corrosion resistant.
AR - E AN-E, ADN-E
Wheels Brass Same
Time Unit Low speed synchronous motor N/A
Number Unit N/A Rotary Solenoid
designed for
intermittent duty
@120VDC
Drive Cam Black Delrin 500 material N/A
Ribbon Mechanism Durable/reliable assembly. Same
Linked with stamping mechanism
to advance/reverse ribbon. All
interacting parts are hardened at
wear points.
Ribbon Fine textured ribbon using a Same
special ink chosen for this
application. The ribbon
texture ensures long wear. It
comes mounted on twin spools
ready for easy insertion.
Printing Coil Wound with high grade enameled Same
copper wire. Entire coil is encap-
sulated in a plastic casing.
Continued next page…
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LIST OF SPECIFICATIONS
MODEL AR-E TIME STAMPS
MODEL AN-E NUMBERING MACHINES
Continued from previous page…
A R - E AN-E, ADN-E
Circuit Board Contains zero-crossover Same-also
detector and potentiometer controls sequential
for adjusting force of im- number advance
print. Components for con- before imprint.
verting 110 VAC to 12 VDC Full wave bridge
are on the board. DC is used rectifier on board to
to power CMOS logic. Print power rotary solenoid.
coil powered by impulse
from AC line. CMOS logic
requires little energy to
operate allowing the board
to use less than 1/200th
of a watt. The board
plugs into an edge connector
which ties in all machine
wiring.
Trigger Switch Snap action Same
Electrical Wiring Internal wires are #20 AWG Same
stranded, 600 volts plastic
covered(PVC-1/32" wall
thickness). Five wire colors
are used for easy identification.
The power cord and plug is
type 18-3 SVT w/molded plug.
Transient Metal Oxide Varistor assembly Same
Suppressor installed across AC line to
protect against line transients.
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INTRODUCTION
Rapidprint's electronic A-Series Automatic Time Stamps, Date Stamps, and Numbering
Machines offer electronic control circuitry which enables the user to select the imprint
strength needed for the particular form and applications and assures consistent imprints
from one impression to the next.
Rapidprint also offers a visual clock optional on all models.
In addition to the advantages described, the electronic circuitry will also provide longer
life and trouble free service since electronic components do not undergo wear and have a
longer operating life. The number of components necessary to achieve the sensing and
control functions are greatly reduced, thus further assuring greater reliability.
THEORY OF OPERATION
AR-E, AD-E, ARC-E, ARL-E, AN-E, ADN-E
The circuit boards incorporated into the AR-E/AN-E machines contain the electronic
circuitry which permits very close control of the action of the printing solenoid. This control
is essential for consistent prints and to allow full adjustment of printing force.
The circuit boards make electrical connection to the machine wiring through a 15 pin
edge connector. All wiring is brought to this connector and provision is made on the circuit
boards for accommodating all options offered for AR-E/AN-E machines.
Actuation Of Printing Mechanism (figure 1)
Inward movement of a document into the throat of the machine pushes back the trigger
assembly (a). This action moves the trigger arm (b) downward, releasing the snap-action
switch button (c). The resulting signal anticipates the timing of the next positive-passing of
the line voltage through zero. At this instant, a controlled delay is initiated which
determines the amount of energy delivered to the imprint solenoid (d).
A potentiometer allows adjustment of this energy level for imprint force. The un-
rectified line current is shown in figure 2a.
With minimum delay, the print force is maximum (figure 2b). The lightest image is
printed when the delay is longest (figure 2c). A single pulse of AC line current drives the
solenoid coil. The current is controlled by a Silicon Controlled Rectifier (SCR).
The solid state switching design totally eliminates contact arcing and also allows a
much higher current than is practical with a trigger switch mechanism.
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Automatic Ribbon Advance (figure 3)
When the printing weight moves upward with each imprint, it takes with it the ribbon
feed actuator which moves the ribbon transport lever pushing the ribbon feed link (c)
forward advancing the ribbon feed pawl (d) which rotates the ratchet and gear (e). Every
printing action advances the ribbon until one spool is filled. As the spool reaches maximum
diameter, it lifts the ribbon feeler (f). At the feeler's highest position, the ribbon reverse
toggle assembly (g) shifts its position to feed the ribbon in the opposite direction.
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