Jingda JR242 User manual

JR242
JR242
JR242
JR242 SOFT
SOFT
SOFT
SOFT TRADEMARK
TRADEMARK
TRADEMARK
TRADEMARK PRINTING
PRINTING
PRINTING
PRINTING MACHINE
MACHINE
MACHINE
MACHINE
Operation
Operation
Operation
Operation Manual
Manual
Manual
Manual
(Welcome
(Welcome
(Welcome
(Welcome to
to
to
to purchase
purchase
purchase
purchase Jingda
Jingda
Jingda
Jingda Printing
Printing
Printing
Printing Machine
Machine
Machine
Machine )
)
)
)
Company
Company
Company
Company :Ruian
:Ruian
:Ruian
:Ruian Jingda
Jingda
Jingda
Jingda Printing
Printing
Printing
Printing Machiney
Machiney
Machiney
Machiney Co.,Ltd
Co.,Ltd
Co.,Ltd
Co.,Ltd
T
T
T
T el:
el:
el:
el: [phone]
[phone]
[phone]
[phone] 65320208
65320208
65320208
65320208
F
F
F
F ax:
ax:
ax:
ax: +86-577
+86-577
+86-577
[phone]
65337602
65337602
65337602
A
A
A
A dd:
dd:
dd:
dd: Dongcheng
Dongcheng
Dongcheng
Dongcheng Industry
Industry
Industry
Industry Zone,
Zone,
Zone,
Zone, Sandu,
Sandu,
Sandu,
Sandu, Tangxia
Tangxia
Tangxia
Tangxia
Town,
Town,
Town,
Town, Ruian
Ruian
Ruian
Ruian city
city
city
city
，
China.
China.
China.
China.
W
W
W
W ebsite:
ebsite:
ebsite:
ebsite: www.cnjdyj.cn
www.cnjdyj.cn
www.cnjdyj.cn
www.cnjdyj.cn

JR Flexo Label Printing Machine Series
1
JR242
JR242
JR242
JR242 Flexo
Flexo
Flexo
Flexo Label
Label
Label
Label Printing
Printing
Printing
Printing Machine
Machine
Machine
Machine
1.
1.
1.
1. Introduction
Introduction
Introduction
Introduction
1. Read this “ User ’ s Manual ” carefully and have a complete understanding of the
content before transporting, installing, adjusting, operating and maintaining the JR
flexographic plate series of trademark printe rs.
2. In transporting, installing, and operating of the machine as well as handling
electricity and high temperature, the user should not only observe the safety
specification and meet the requirement of the “ User ’ s Manual ” , but also the related
national rules and regulations in the fields of machinery and electricity.
3. The “ User ’ s Manual ” and the intellectual property right of the flexographic plate
printe r series belong to Rui ’ an Jingda Printing Machinery Company, Ltd., which
should not be disclosed to the third party. Should there be any violation of the right,
the company is entitled to take a legal action.
S ince 2000, the company has become a professional enterprise specializing in the
design, development and manufacture of the printing machines . We have put into the
national and international markets all kinds of printers and thus won the trust of users both
at home and abroad. A t the same time to improve quality and increase variety, we have also
standardized and serialized our products.
The JR flexographic plate series of trademark printe rs are of high quality and variety.
T hey have multiple functions and reasonable prices as well as reliable after - sale services.
They are the ideal choice for flexographic plate printer users. Since their introduction to
the markets in Europe, America, Southeast Asia, the Middle East and South Africa in 2002,
they have been highly evaluated and liked by the commercial agents and users in various
countries and regions.
T o correctly use the flexographic plate series of trademark printe rs, please read the
“ User ’ s Manual ” carefully and get a complete understanding of its content before
transporting, hoisting , installing, adjusting, and operating the machine.

JR Flexo Label Printing Machine Series
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I.
I.
I.
I. Operating
Operating
Operating
Operating principle
principle
principle
principle
When the machine is switched on, the anilox roller will rotate in the ink duct. B y
controlling the clearance between the ink scraper and the anilox roller, you can deliver a
proper amount of ink evenly to the flexographic plate of the circumferential surface of the
printing plate wheel. T he flexographic plate roller carries the ink to the surface of the
material to be printed, which is dried and rolled by the electrically heated drying board to
finish the process. Environment friendly, the machine is characterized by its speed and
efficiency.
T he printed material is put into the electric thermostat ventilating and drying cabinet
for about 5 and 6 hours, with the effect of fast color and tolerant laundry. The ink layer on
the printed material is solid and three-dimensional. (For details, please see the related
description of driers of our auxiliary printing series.)

JR Flexo Label Printing Machine Series
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Table
Table
Table
Table of
of
of
of Contents
Contents
Contents
Contents
Chapter
Chapter
Chapter
Chapter I.
I.
I.
I. Features
Features
Features
Features
1. Unfolding part
2. photoelectric switch
3. Printing station
4. ink duct
5. Operating box
6. Transmission and power supply
7. Optional accessories
Chapter
Chapter
Chapter
Chapter II.
II.
II.
II. Specifications
Specifications
Specifications
Specifications
Chapter
Chapter
Chapter
Chapter III.
III.
III.
III. Transportation
Transportation
Transportation
Transportation and
and
and
and installation
installation
installation
installation
1. Transportation
2. Installation of main machine
3. Power connection
Chapter
Chapter
Chapter
Chapter IV.
IV.
IV.
IV. Testing
Testing
Testing
Testing
Chapter
Chapter
Chapter
Chapter V.
V.
V.
V. Operation
Operation
Operation
Operation explanation
explanation
explanation
explanation
1. Unfolding part
2. Main control box
3. Selecting printing roller and paired gear formula
4. Calibration system
5. Selecting anilox roller
Chapter
Chapter
Chapter
Chapter VI.
VI.
VI.
VI. Maintenance
Maintenance
Maintenance
Maintenance and
and
and
and lubrication
lubrication
lubrication
lubrication
1. Lubricating points
2. Maintenance
3. Roller
4. Gear
5. Bearings
6. Plate cylinder
7. Daily checking items

JR Flexo Label Printing Machine Series
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8. Weekly checking items
9. Semi-annually checking items
Chapter
Chapter
Chapter
Chapter VII.
VII.
VII.
VII. Trouble
Trouble
Trouble
Trouble shooting
shooting
shooting
shooting
1. Printing problems
2. Operating trouble
Annex:
1. Electric circuit
2. Statistic table for the reduction of plate length
3. Measurement of plate cylinder
4. Sketch map of paper advancement

JR Flexo Label Printing Machine Series
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Chapter
Chapter
Chapter
Chapter I.
I.
I.
I. Features
Features
Features
Features
JR242 flexographic plate printer is characterized by long printing length (190-400mm),
easy register, stable control of tension, non-dislocation when starting up, and quick drying.
1. Unfolding part:
The rolling out tension can be made by adjusting the friction plate, spring and nut on
the rolling axle. The tension of the material on the rolling out axle can be made by
inserting a stainless-steel rod into the paper.
2. Photoelectric switch :
There are two modes in the setting: ON and OFF. W hen the machine is in the ON mode,
the photoelectric switch must be screened by the material for the machine to start up. When
the material has been printed, the machine stops working.
Tension roller: The tension roller is used to control the tension of the rolling out
material. W hen the material is found looser and looser in the process of printing when
passing the tension roller and the tension presser, the rolling out tension must be adjusted
greater (there is adjusting knob in the electric part.)
Unfolding roller:
It has synchronization function when the material passes this structure.
3. Printing station:
The printing station is composed of the front and two colors on the back, of which
one-color group is made of printing cylinder , paired gear anilox roller, ink duct, movable
plate, hand wheel, and registering device when the machine stops.
T he size of the printing cylinder and the paired gear can be changed. (for details, please
refer to Measurement Table)
T he anilox roller is set at 200 lines per inch when the machine leaves the factory. W hen
dot pattern is printed, the anilox roller can be selected by the ratio of 4 to 1. The cleaning
of the anilox roller is very important, because the color will become dim when the anilox
roller is blocked by ink.
4. Ink duct:
T he ink duct is composed of ink knife, duct distributor and ink adjusting screw. When
the ink duct is mounted on to the machine, the screws at both sides of the ink duct must be
adjusted so that the ink distributor touches slightly with the ex-circle of the anilox roller.
When the anilox roller is turned with hand, it must be turned smoothly.
NB
NB
NB
NB . Please do not mix up the ex-factory mark on the ink duct.
The printing part of JR-242 flexographic plate printer is of center drum, which can be

JR Flexo Label Printing Machine Series
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used to print large trademark (180mm ⅹ350mm) with high quality and good coloring
effect.
I t is easy to use and quick to adjust. A single operator can finish the adjustment of a
4-color machine within minutes, and the thickness of the material to be printed ranges from
0.1 to 0.5mm. Multiple colors can be printed when the material passes the machine once,
with the maximum printing area being 180mm
ⅹ
350mm and the horizontal and vertical
registering control within ± 5mm , quick and easy.
Registering error:
T he registering accuracy is ± 0.1m ± 0.1m m. The thickness of a typical flexographic
plate of the trademark printer is 1.7mm.
5. Folding part:
The JR-242 flexographic plate printer is configured with a paper rolling axle, the
maximum rolling diameter is Φ 16 （400mm ）.
6. Operating box:
T he operating box is made of the following devices: PVC, ON switch , OFF switch,
inch switch and speed-adjusting switch .
7. Transmission and power requirement
The JR-242 flexographic plate printer is configured with AC motor, speed-up and
speed- down control, which enables the speed of trademark printing to change from 5
meters per minute to 60 meters per minute. T he power requirement is 220V , 50/60 Hz, 3
phases, 4.7KW.
8. Configuration list
Name
Name
Name
Name Qty.
Qty.
Qty.
Qty.
Ceramic anilox roller 700/min or 280/min 4
Ceramic anilox roller 400/min or 200/min 1
O uter-form printing seat 4
I nner-form printing seat 2
I nfrared dryer 4
H eating plate 2
P rinting cylinder 1
Optional accessories
Name
Name
Name
Name Qty
Qty
Qty
Qty
Printing cylinder Based on reduction rate statistics

JR Flexo Label Printing Machine Series
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Ceramic anilox roller 150/min-750/min
gear S elect with printing cylinder
Flexograph ic plate material 1.7mm thick
Chapter
Chapter
Chapter
Chapter II
II
II
II Specifications
Specifications
Specifications
Specifications
Maximum bandwidth 200mm
Printing seat 4 outer-form, 2 inner-form
Maximum printing width 180mm
Maximum printing length 350mm
Minimum printing length 200mm
Thickness of material to be printed 0.12mm-0.6mm
Maximum printing speed 330ft/min(100M/min)
Maximum unfolding diameter 400mm
Maximum folding diameter 400mm
W eight and dimensions
N et weight 1200kg
Gross weight 1300kg
M achine dimension L ⅹWⅹH: 220 ⅹ85 ⅹ180cm
Packaging dimension L
ⅹ
W
ⅹ
H : 245
ⅹ
148
ⅹⅹ
204cm
Chapter
Chapter
Chapter
Chapter III.
III.
III.
III. Transportation
Transportation
Transportation
Transportation and
and
and
and Installation
Installation
Installation
Installation
1. Transportation
A vehicle of at least 3 tons must be used to carry the main machine in to the place to be
installed. (please refer to the reference sketch).
2. Main machine installation
1) Dismantle all the plastic bags used for protecting the parts of the machine.
2) Adjust the horizontal level of the machine. ( According to the reference sketch)
3. Power connection
1) All the connection of the circuit must be done by the electric engineer who has received
professional training. T he company will not be responsible for any damage caused by

JR Flexo Label Printing Machine Series
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the non-electric engineer or by the connection not as indicated by the circuit.
2) It is recommended that a copper rod be hammered into the earth 1 ~ 2 meters deep as
earth wire.
Chapter
Chapter
Chapter
Chapter IV
IV
IV
IV Testing
Testing
Testing
Testing
1. Put the trademark belt on to the axle, and then adjust the tension.
2. Use the transmission cylinder to advance the material on to the surface of the drum in
the printing station.
3. Put the paper core on the axle of the folding device, and stick on it the end of the
material.
4. Adjust the tension adjustor of the folding tension control, and make sure that the pulling
strength of the trademark belt is correct.
5. When the electric power is connected, the indicator of the main power (MAINPOWER)
on the control box is lit. ( See the reference sketch)
6. First press the warning buzzer (WARNINGBUZZER) and then press the inch switch
(INCHING) on the control panel, check if the rotation of the main motor is correct.
Select low speed and press the continuous switch (START). When the printer has been
running for 5 minutes, check in detail all the devices and gears.
Chapter
Chapter
Chapter
Chapter V
V
V
V Operation
Operation
Operation
Operation explanation
explanation
explanation
explanation
1. Unfolding part
E ither the unfolding or the folding part has its own core axle. When the material is put
on it, use a fastening fork to fix the material. When the trademark belt is used up, the
photoelectric switch (or electric eye) will switch off the printer automatically.
2. Electric operation
1) PRC
2) Main power indicator (MAIN POWER)
3) Warning buzzer (WARNING BUZZER)
4) Speed adjusting knob (SPEED CONTROL)
5) Inch switch (INCHING)
6) Continuous operation knob (START)
7) Stop knob (STOP)
8) Emergency stop knob (EMERGENCY STOP)
The speed adjusting knob displays the speed of the printer in the form of meters per
minute. Whether the printer is in operation or not, the speed adjusting knob can be turned

JR Flexo Label Printing Machine Series
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by hand to change the speed.
T he JR-242 flexographic plate trademark printer can finish the printing on the front and
the back simultaneously.
3. How to select and install the printing cylinder
The selection of the printing cylinder and gears is based on the formula -1 ( Z=L/3.175 ),
where
Z ═ gear number, L ═ printing length
After calculation, select the gear number in the reduction ratio statistic table. W hen the
gear and the cylinder is decided, proceed with the following steps.
Printing pressure, ink amount and register set
1) When the printer is running at the low speed, set the printing pressure and the ink
amount from the last color to be printed. Add the pressure slowly first to make the plate
cylinder touch the trademark belt.
2) Rotate the clearance adjusting device between the anilox roller and the printing plate,
and begin putting ink onto the printing plate. At this time, observe the printing trace of
the trademark belt on the one hand, and adjust the pressure and the ink amount on the
other until a clear printing trace appears and there is no absence of picture.
3) Separate the cylinder and the anilox roller, so that the set value of the pressure and ink
amount can be achieved by the smallest pressure.
4) F inish the setting of ink amount and printing pressure of other groups in the order from
the rear to the front.
5) When all the setting of every group is finished, adjust the register between color and
color, starting from the color on the back.
Register system
First make rough positioning. Press in the printing cylinder. W hen the error of the
printing trace is around 3.5mm, accurate positioning can be made. However, when the
error is greater than 3.5mm, the gear must be withdrawn and turned to the necessary
position. Press in the printing cylinder again to make the error around 3.5mm. Switch on
the machine to make fine adjustment as shown in the picture.
T o save material, the plate cylinder for each color should be installed on approximately
the same position of the corresponding group. If this is done correctly , the position of the
picture to be printed for each color will be very near the register position, which can
minimize the times of register adjustment necessary for the setting and reduce the waste of
the material to be printed. It is recommended that marks be made on the same position of

JR Flexo Label Printing Machine Series
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each plate cylinder or gear, so that the picture on the printing plate adjusted according to
the marks will be very near to the register. When each cylinder is installed on to the printer,
the marks can be used for accurate installation (the accuracy is within a gear). The mark on
the paper belt should be calibrated with the mark on the cylinder and gear of the first group,
and then inch start to move the paper belt to the next color and calibrate with the mark on
the next cylinder. This method can be used for rough peripheral calibration so as to reduce
the waste of trademark belt and the time for setting.
4. Rules for selecting anilox roller
T he line selection of the anilox roller is determined by the originals duplicated on the
printer. W hen the printing plate is designed, the line of the anilox roller is generally
between 85 and 200. When words or lines are to be printed, it is usually between 180 and
400. To print dense line area, the minimum ratio is 4 to 1 in selecting anilox roller, i.e., to
print 100-line color picture, the minimum line of the anilox roller is 400.
The company standard for the user is 200 lines per inch.
Inking part
There is one principle for the ink duct to be put on the printer, i.e., using the least
pressure to finish the ink scraping. W hen the ink blade is adjusted too tight, the blade will
bend under pressure and the ink will become dried and stuck on the back of the ink blade
due to friction and the accumulation of heat. When this happens, the dried ink will damage
the anilox roller.
When the ink blade is worn out or damaged, it must be replaced.
5. Folding part
The JR-242 flexographic plate trademark printer is equipped with a fastening axle for
folding paper drum, the maximum folding trademark belt being 400mm ( Φ 16 ). T he folding
switch is in the middle of the fastening axle and the folding tension is controlled by the
electromagnetic clutch, which keeps the trademark belt at a certain tension.
Chapter
Chapter
Chapter
Chapter VI
VI
VI
VI Lubrication
Lubrication
Lubrication
Lubrication
The printer should be lubricated regularly, the times of which is determined by the
frequency of the use.
1. Lubricating point
When beginning to work in the morning, use an oil gun to apply grease on the gear of

JR Flexo Label Printing Machine Series
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the pressure cylinder, however, lubricating oil must be used for the bearings of the cylinder
in the printing station. All the bearings must be lubricated with the correct grease or oil.
T he following lubricating oil and grease are recommended by LABEAAONG Company .
Lubricating oil: light oil ( HYSPIN AWS 3Z CASTROL or equivalent)
Grease: grease ( SPHEEROL AP3 CASTROL or equivalent)
2. Maintenance
T he maintenance of the machine includes regular lubrication and cleaning of the
rotation elements of the machine and the cylinder of each printing station. W hen the
printing is finished , be sure to clear the ink of all the anilox rollers in the printing station.
3. Main driving belt
Keep the belt clean and oil free. M ake a regular check of the belt to see if it is torn,
damaged or loose.
4. Lubrication check
Item
Item
Item
Item Recommended
Recommended
Recommended
Recommended lubricator
lubricator
lubricator
lubricator Code
Code
Code
Code
Accessories SPHEEROL A93
CASTROL or equivalent
1
Gear HTSPINAWS32
CASTROL or equivalent
2
Bearing sleeve SHELLRIMULA
OIL 30 # or equivalent
3
Item
Item
Item
Item Lubricator
Lubricator
Lubricator
Lubricator Frequency
Frequency
Frequency
Frequency
P ower cylinder gear 2 Regular
Horizontal (left/right) adjusting bearing 1 Per week
F or s ynchronous cylinder bearing and tension
checking cylinder bearing, add grease slowly.
Because they are cover bearings, too much
grease will cause overheating, it will also make
the cover leave the bearings quickly so that the
latter cannot keep the grease.
1
S emi annually
Chapter
Chapter
Chapter
Chapter VII
VII
VII
VII Maintenance
Maintenance
Maintenance
Maintenance
A clean printer is essential for high productivity. I t can also maximize the effective
life of the machine. A proper cleaning of the machine will make your work easy and
improve its quality . Dirt oil, paper dust or other foreign material on the ink roller, gears,

JR Flexo Label Printing Machine Series
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transmission axle, gliding rail or bearing sleeve will make the work of the operator or the
printer difficult.
1. Cylinder
E ach time when you begin printing or the printing is finished, the cylinder must be
checked carefully to remove any foreign dirt. Paper dust or dirt can be removed with a
clean scraper and oil dirt on the surface of the cylinder can be removed with the scraper
dipped in the solvent . However , never use any metal tool to clean the cylinder.
2. Gears
All the gears of the ink cylinder, plate cylinder and the greater pressure cylinder must
be checked regularly to see if there is dirt to cause any unnecessary tension or friction on
the gear and the gear axle (in severe cases, the printing quality can be affected). A better
tool for cleaning these gears is short steel brush dipped in the solvent. When the gears have
been cleaned, they should be lubricated again to suppress tear and wear, to reduce noise
and to make future cleaning easy.
3. Ceramic anilox roller
Each time when the ceramic anilox roller is cleaned, it must be cleaned thoroughly
and checked with a high-powered amplifier. T he cleaning is better to be done when the ink
on the anilox roller is wet. This way, the ink can be effectively stopped from drying in the
roller holes. In general , a special chemical detergent is used to soften and dissolve the ink
in the roller hole. Method: Place the anilox roller in the detergent for a while and then
brush the surface of the roller spirally with a special brush. This is especially effective for
the severely blocked anilox roller with dried ink in the roller holes. After cleaning, pure
alcohol must be used to treat the surface of the roller, including gears and axle. When the
moisture is evaporated, cover the anilox roller with clean paper to prevent dust.
NB. I f there is grease on the surface of the roller, clear it away with alcohol
immediately .
4. Bearings
The ink roller and the plate cylinder is of high precision; therefore, any foreign body
in the bearing or the bearing sleeve will lead to poor installation of the bearing and bearing
sleeve and unnecessary tension. Before installing the plate cylinder into the printer, the
bearing and the bearing sleeve must be checked and cleaned. After cleaning, thin oil must
be applied on the connecting surface.
5. Plate cylinder
T o eliminate any possible changes, all the cylinders of the printer must be of high

JR Flexo Label Printing Machine Series
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quality with the tolerance within 0.02. For good printing quality, this is very important,
especially the quality of the plate cylinder. The concentricity from the cylinder surface to
the bearing is measured by placing the bearing on the V block and checking with a
needle-plate display.
Warning: When grease is stuck on the surface of the cylinder, use alcohol to clear it
away.
Gear
number
Printing
length
P late
measurement
Reduction
ratio
Gear
numb
er
Printing
length
P late
measurement
Reducti
on ratio
110 349.25 339.35 97.16 81 257.175 247.275 96.15
109 346.075 336.175 97.13 80 254.0 244.1 96.10
108 342.9 333 97.11 79 250.825 240.925 96.05
107 339.725 329.825 97.08 78 247.65 237.75 96.00
106 336.55 326.65 97.05 77 244.475 234.575 95.95
105 333.375 323.475 97.03 76 241.3 231.4 95.89
104 330.2 320.3 97.00 75 238.125 228.225 95.84
103 327.025 317.125 96.97 74 234.95 225.05 95.78
102 323.85 313.95 96.94 73 231.775 221.875 95.72
101 320.675 310.775 96.91 72 228.6 218.7 95.66
100 317.5 307.6 96.88 71 225.425 215.525 95.60
99 314.325 304.425 96.85 70 222.25 212.35 95.54
98 311.15 301.25 96.81 69 219.075 209.175 95.48
97 307.975 298.075 96.78 68 215.9 206 95.41
96 304.8 294.9 96.75 67 212.725 202.825 95.34
95 301.625 291.725 96.71 66 209.55 199.65 95.27
94 298.45 288.55 96.68 65 206.375 196.475 95.20
92 292.1 282.2 96.61 64 203.2 193.3 95.12
91 288.925 279.025 96.57 63 200.025 190.125 95.05
89 282.575 272.675 96.49 62 196.85 186.95 94.97
88 279.4 269.5 96.45 61 193.675 183.775 94.88
87 276.225 266.325 96.41 60 190.5 180.6 94.80
86 273.05 263.15 96.37
85 269.875 259.975 96.33 JR-24 2 printing plate reduction ratio statistic

JR Flexo Label Printing Machine Series
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table84 266.7 256.8 96.28
83 263.525 253.625 96.24 Rui ’ an Jingda Printing Machinery Company,
Ltd.82 260.35 250.45 96.19
Accessory list of JR-242 flexographic plate trademark printer
No. Name Qty.
1 Spanner 1 set
2 Ink shovel 4
3 Plate adjusting seat 1
4 Operating blade 1 package
5 Operating blade handle 1
7 Rubber hammer 1