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
01/04/2012
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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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Type-wheel Operation (Model AR-E figure 4)
The date/time type-wheels, located in the upper casting, operate independently of the
printing and ribbon mechanism. When plugged into a 110 VAC power source, the
synchronous motor (a) will operate continuously, rotating the impulse cam (b) one
revolution per minute. The cam action pushes back the cam follower (c) and the connecting
arm (d) attached to it. The pull of the connecting arm takes with it the actuating pawl
swing assembly which includes the actuating pawl assembly (e) with its stepped, rake-like
teeth of varying heights. As the impulse cam (b) allows cam follower (c) to snap back down,
the first tooth of the pawl assembly, pushes the unit wheel forward one digit (once per
minute) by engaging the ratchet which is attached to the side of the wheel. At the tenth
minute, pawl tooth enters a drop in the unit wheel ratchet allowing the next pawl tooth to
engage the tens minute wheel. This process continues until the two wheels show 59
minutes. At this point, the hour wheel is engaged and the type-wheels indicating minutes
advance to zero.
At each twelve-hour period, the AM-PM wheel is advanced. At each 24-hour period the
date wheels also advance. This entirely automatic process continues until the end of the
month. At this point, the month wheels must be reset manually. The year wheel must also
be reset manually at year end.
The retaining pawls (f) are held in position against the printing wheel ratchets by the
retaining pawl springs. The pawls serve to prevent over-throwing the wheels and ensure
proper alignment.
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Type-wheel Operation (Model AN-E figure 5)
Unlike the date/time stamp, the numbering typewheels do not operate independently of
the printing mechanism.
When the trigger releases the snap-action switch button, the number advances before
the stamping cycle and occurs in the following manner. A count begins within the circuitry
which continues for five cycles of the AC line. A Triac is switched on during the five cycle
count and powers a full wave bridge rectifier which energizes the rotary solenoid. After a
count of 3 cycles is made, the stamping cycle is initiated so that the stamping will take place
immediately after the number wheels advance. The rotary action of the solenoid moves the
actuator arm assembly (a) and the connecting link (b). The forward push of the connecting
link takes with it the actuating pawl swing assembly (c).
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OPERATING INSTRUCTIONS
Rapidprint Date/Time and Numbering machines are electrically-operated automatic
machines offering crisp, clean straight line imprints. They are designed for easy, convenient
usage, and long-life dependable service. Insertion of a business form or other paper
document into the throat of the machine automatically actuates the printing mechanism to
register the imprint on the upper side of the paper.
Setting Print Wheels
NOTE:UNPLUG THE MACHINE FROM THE WALL OUTLET BEFORE
OPENING UNIT TO MAKE ANY ADJUSTMENT.
1. Turn key counterclockwise to lift top cover. Print wheels are located in recess
area of top cover.
2. Set each print wheel individually to the date, time or number desired. Turn
each wheel downward to the setting desired, using a pencil or a wooden stylus.
(figure 6)
Figure 6
3. Insert plug back into wall receptacle.
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Stamping An Impression
Insert form into throat of machine far enough to actuate trigger. When the trigger is
actuated, the unit will automatically stamp the desired impression.
Description Of Major Assemblies
Rapidprint Date/Time and Numbering Stamps consist of four major assemblies (figure
7), which are easily serviced. The design allows worn parts to be replaced quickly and
inexpensively, thereby ensuring a long service life for each machine.
1. Typesection Assembly-includes a set of typewheels actuated by a 60-cycle
alternating current, synchronous timing motor in the case of a Date/Time Stamp,
or a rotary solenoid for a Numbering Machine.
2. Bottom Frame Assembly-serves to support and move the inked printing ribbon.
3. Solenoid Frame Assembly-includes the printing plunger, coil and mechanism
required to produce the printing action.
4. Casting Assembly-houses the entire machine.
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Figure 7
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COMMON ADJUSTMENTS
hanging Force Of Imprint
iciently sharp, or if you must stamp through a multiple copy
C
If the imprint is not suff
form, you can increase the print force easily. Gently insert a small screwdriver into
the hole in the circuit board mounting plate as shown in figure 8. Be sure the blade
of the screwdriver fits properly into the potentiometer slot. Turn clockwise to
increase imprint force, or counterclockwise to reduce the force. Do not try to turn the
potentiometer past the stop points (high or low) or damage may result.
CAUTION: ALL MACHINES ARE ADJUSTED TO A STANDARD IMPRINT
LE
N
T
Imprint Location
rint location is adjustable from 1/8" depth to a 1-5/8" depth.
NOTE: UNPLUG THE MACHINE FROM THE WALL OUTLET.
FORCE WHEN SHIPPED FROM THE FACTORY. IMPRINT
STRENGTH SHOULD BE INCREASED ONLY WHEN MULTIP
COPY FORMS ARE TO BE USED. USE LOWEST PRINT FORCE
NECESSARY TO PRODUCE A GOOD IMPRINT. DO NOT
INCREASE IMPRINT FORCE TO COMPENSATE FOR A WOR
RIBBON. HIGH SETTING, WHEN UNNECESSARY, WILL RESUL
IN PREMATURE WEAR.
The p
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Open the cover and remove the ribbon. To increase the throat depth, slightly loosen the
screw securing the trigger top and slide it back as needed (i.e. if you wish to move the print
1/8" further down from the top of the document, slide the trigger top 1/8" toward the rear of
the machine).
Obtaining a throat depth of less than 1-3/16" requires an extended trigger (figure 9).
(Unless you stock this part, it must be specially ordered). The trigger extension support
replaces the standard trigger top. The trigger extensions, which reach toward the front of
the machine, are then adjusted as desired (figure 10 ).
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Installation Of Extended Trigger:
NOTE: UNPLUG THE MACHINE FROM THE WALL OUTLET.
1. Remove ribbon frame assembly.
2. Remove base plate/circuit board assembly.
3. Loosen trigger top screw only slightly and push top toward rear of machine.
4. Using your left index finger, hold the hex nut and lockwasher in place and
remove the screw and trigger top.
5. Still holding the nut and washer, place the extension support on the trigger.
Insert screw and secure the assembly (figure 9).
6. Adjust for depth as shown in figure 10.
7. Reinstall base plate/circuit board assembly and ribbon frame assembly.
Adjusting Uniformity of Imprint:
NOTE: UNPLUG THE MACHINE FROM THE WALL OUTLET.
First, be sure that the inked ribbon is in good condition. Next, check the condition of
the type-wheels. If the operator has carelessly stamped documents with paper clips
attached, the characters on the wheels may be damaged. On older machines, some
characters may wear down with time and usage. Both problems reduce imprint
definition. If the unit passes these first two visual checks, make a sample imprint and
examine it. It should be uniform for all letters and numbers. If the imprint is uneven
from side to side or top to bottom, adjust the print solenoid frame by either of the two
methods below:
1. Adjusting Solenoid Frame:
If the imprint is weak on the left side, loosen the four #8-32 solenoid mounting screws.
Use a 1/16" Allen wrench to turn the two #8-32 socket set screws on left side of the
solenoid frame to help even the imprint. Follow the same procedure to adjust the
appropriate set screws for weakness on the right, top or bottom of imprint.
2. Die Plate Adjustments:
If the frame adjustment described in the preceding paragraph does not correct the
condition, use the following procedure: loosen the two #3-48 flat head screws that hold
the die plate to the type-section frame. Cut a length of thin paper the size and width of
the weak area on the die plate and place the paper between the die plate and the top
frame. Retighten the die plate mounting screws and take a sample imprint. If the
imprint is improved but still has uneven areas you may file the rubber platen. To help
you find the area to file, take a length of twine and hold one end in each hand. Insert
the twine into the machine until you hit the trigger top and the machine prints.
By doing this, a sample inked imprint will appear on the rubber platen, showing areas
of heavy print. Now take a narrow file and very carefully file away rubber from the
heavy inked area. Repeat procedure until print is satisfactory.
NOTE: UNPLUG THE MACHINE FROM THE WALL OUTLET.
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TROUBLESHOOTING GUIDE
Machine Does Not Stamp:
If the machine does not stamp when a document is inserted, the following checks should be
made in the order listed.
NOTE: UNPLUG THE MACHINE FROM THE WALL OUTLET.
1. Make sure the printing weight moves freely up and down.
2. Trigger/Switch setting:
a) Visually check the trigger and switch. The trigger tab should be square with the
switch ( figure 11).
b) Push the trigger top back and observe the switch button. The button should come
out and "click". The click indicates the closing of the circuit.
c) If the switch mounting bracket is set too low, the travel of the trigger tab will not
be sufficient to close the circuit.
d) If this is the case, move the mounting bracket away from the tab until you hear
the "click".
3. Check Adjustment:
a) In both directions, the trigger tab should cause the switch to click in the middle of
the trigger travel, not at either end of the travel.
b) Adjust as necessary.
c) If machine still does not stamp, see step 4 .
4. Check Fuse:
-remove ribbon frame
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