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TROUBLESHOOTING

77091 Issue 2 November 2003

89

TROUBLESHOOTING

The Ink Line

Problems with the ink line may lead either
to the incorrect firing or total absence of
one or more jets, or the entire loss of ink
supply, affecting all the jets. The diagram
(right) shows a good jet stream for
comparison with incorrectly firing jets.
Drooling and feathering are generally caused
by a build-up of contaminants on the nozzle
plate and can be cleared by cleaning the
nozzle plate with Domino nozzle cleaner
and a soft, lint-free cloth. If this does not
cure the problem, perform a purge.
Individual missing jets can be restored by
checking the nozzle plate, then the tubing
inside the print head leading back to the
relevant valve. The ink problem can be
followed back to the distribution assembly,
after which the ink path is common to all
valves. If the tubes are not blocked, the
solenoid valve itself is suspect. This is easily isolated by plugging a known good
valve into the suspect socket.
If no ink is present at any of the jets, withdraw the QD plug from the print head
and press the tip against the inside of an old container. If ink flows freely, suspect a
clogged ink filter or blocked tubing. No ink signifies a loss of supply from the ink
bottle - check the cap and probes.

Types of correct and

incorrect jet flow

Correct

Feathering

Blocked

Drooling

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Содержание C Series

Страница 1: ...C SERIES PRINTERS OPERATION AND MAINTENANCE MANUAL MODELS C7 C16 AND C34 ...

Страница 2: ...netic Compatibility Generic Emission Standard EN 55022 1987 Limits and measures of measurement of radio interference characteristics of information technology equipment EN 55011 1996 Conducted emissions EN 61000 4 1 1995 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques EN 61000 4 2 1995 Electromagnetic compatibility EMC Electrostatic discharge immunity test EN 61000 4 3 ...

Страница 3: ... are also familiar with these symbols and act accordingly All rights reserved No part of this publication may be reproduced stored on a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior permission of Domino UK Ltd Domino UK Ltd has a policy of continuous product improvement the Company therefore reserves the righ...

Страница 4: ...If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Re orientate or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit di...

Страница 5: ...77091 Issue 2 November 2003 5 AMENDMENT RECORD Amendment Date All Parts at Issue 1 October 2001 All Parts at Issue 2 November 2003 ...

Страница 6: ...6 77091 Issue 2 November 2003 ...

Страница 7: ...Head 27 INSTALLATION 30 Where to Site the Printer 30 Buffer plate 32 Mounting the printer 32 Voltage Setting 36 One Litre Base 37 Three Litre Base 38 All Models 39 Connecting an Ink Bottle 41 Connecting the Print Head 43 Priming the System 44 Purging the Print Head 44 Two Line LCD Models 45 Four Line LCD Models 45 All Models 46 PROGRAMMING AND PRINTING 47 Selecting a language 47 Password Protectio...

Страница 8: ...matting Text 67 Slashed and Non Slashed Zeros 68 Bold 68 Text Size 69 Standard Text Sizes 70 Box Counting 74 Pallet Counting 76 Setting Up Counting 76 Printing the Count 77 Printing the Date and Time 78 Printing a Sell by Date 80 Start code 81 Incremental value 81 Date code letters 81 End code e 81 Printing Shift Codes 82 MAINTENANCE 86 General 86 Routine Maintenance 86 Daily 87 Before Long Holida...

Страница 9: ...ary precautions may be taken Contact with the mouth must be avoided Therefore eating drinking or smoking or any personal habits or actions which may transfer ink to the mouth must be avoided Contact with the eyes must be avoided Suitable eye protection must always be worn whenever there is any risk of splashing or misting If ink does get into the eyes first aid treatment is to flood the affected e...

Страница 10: ... be stored where it can be reached quickly by the fire fighting service and where it will not spread beyond the store Spillages and Disposal WARNING Some dried inks are highly flammable Clean up all ink spillages immediately Do not allow the ink to dry or allow any build up of dried ink spills Spillages must be cleaned up as soon as possible with the appropriate solvent materials and with regard t...

Страница 11: ...lines of text printed at once is known as a message 50 separate messages can be stored in the printer s memory Once input these messages can be recalled for printing at the touch of a button and are entirely unaffected by power loss Production dates sell by dates shift codes and incremental box counting can be generated automatically The system is quick and easy to install and operate requiring mi...

Страница 12: ... processor memory and ink valve driver electronics keypad LCD screen and photocell or other product sensor It also contains all the electro mechanical valves tubing filters and ink jet system required to form a matrix of alphanumeric characters Air is supplied from an internal air pump mounted in the base unit which remains active while power is switched on Low pressure air is fed into the sealed ...

Страница 13: ...lve array The diagram above shows the ink path in a typical print head For clarity only two of the valves are shown The number of valves and layout of the ink distribution assembly depends on the model used On activation each solenoid valve allows a measured amount of ink still under air pump pressure to move forward into the outlet tube linking the valve with the nozzle plate The nozzle plate con...

Страница 14: ...to the left correctly positioning the paper for each character In the case of the C Series printers it is not each character which needs to be positioned but each vertical row of dots C Series printers produce text in several available matrices depending on the text size chosen and the capabilities of the model used These matrices can range from 5 x 5 five dots high and five dots wide to 34 x 24 T...

Страница 15: ...ires a C14 The diagrams below show proportionally the print capabilities of each of the printers In each case the number is the height of the relevant text in millimetres Note The sizes given are representative only When dealing with nozzle plates the height is assumed to be the measurement between the middle of the top jet and the middle of the bottom plate in the array The print capabilities dif...

Страница 16: ...SYSTEM OVERVIEW 16 77091 Issue 2 November 2003 C14 An Example of a Printed Message ...

Страница 17: ...SYSTEM OVERVIEW 77091 Issue 2 November 2003 17 C34 ...

Страница 18: ...SYSTEM OVERVIEW 18 77091 Issue 2 November 2003 C34 continued ...

Страница 19: ...short time delay to enable the item to be carried on past the print head This delay depends on the speed of the conveyor and the length and position of the message and is set by the operator for each message When the item is at the correct position in respect to the print head the desired text is printed by repeated triggering of the solenoid valves Meanwhile a second item may be approaching the p...

Страница 20: ... timing and control of ink drop release Ink CAUTION Do not use ink or cleaner not supplied by Domino The use of any other ink or cleaner can cause serious damage to the printer Contact your nearest distributor or Domino Service for advice on ink and printing applications Printer ink comes in a choice of colours and is specially formulated to maintain the long life of the printer and to provide the...

Страница 21: ...ase with its larger capacity ink container allows extended operation between ink changes One Litre Base In the one litre base the ink bottle is located inside the base unit accessed by rotating the door catch ring on the front of the unit 90 allowing the door to swing down The diagram below shows the layout of the ink bottle compartment behind the door Door Catch Ink Level Window Power Switch Ink ...

Страница 22: ...inter by the mains input plug located on the bottom face of the base unit just behind the hinged door This is the only input that is required for operation of the printer The power switch is located on the right side face of the base unit When power is turned on this switch will illuminate A serial number label near the switch will indicate the supply voltage to which the printer unit is set Befor...

Страница 23: ... the catch The door will then fall forward on its hinge allowing access to the interior A stopper beneath the door ensures that it will not trap the mains cable To close the ink compartment door reverse this procedure Push the catch in while rotating it 90 clockwise until it holds firm Take care not to trap the ink and air lines when closing the door ...

Страница 24: ... internal air pump keeps the ink bottle pressurised in order to force ink up into the print head it is not advisable to attempt to remove an exhausted bottle without first depressurising it Switch the power off stopping the air pump then press the valve stem upwards to release the pressure from the bottle The bottle can then be removed and discarded Full instructions on connecting up a new ink bot...

Страница 25: ...is time on the door itself The power switch is located on the left side face of the base unit door and will illuminate when power is turned on Like the one litre base an ink level indicator switch is located on the top of the base unit in the form of a red push button When it is pressed down the ink level indicator lamp will illuminate and the level of ink in the bottle can be seen through the win...

Страница 26: ...nterior To close the ink compartment door reverse this procedure Hook the catch around the fastening on the rear of the base unit and press it in place Take care not to trap the ink and air lines when closing the door This photo shows the interior of the three litre base s door The captive ink bottle cap can be clearly seen hanging from its connecting air and ink tubes All the base unit s electron...

Страница 27: ...er models increased print capabilities all other functions are exactly the same All printers use the same keypad layout and communicate with the operator in the same way with the same keys accessing the same options and the same prompts requesting the same information Notes 1 The keys are activated by pressure sensitive pads just beneath the printed surface of the keypad Press once firmly in the c...

Страница 28: ...with the SHIFT key see below the BACKSPACE key clears the entire message line while editing messages when not editing messages this key combination erases all the messages in the printer s memory The ALL key is used in many functions to select all the messages in the printer s memory The bottom section of the keypad contains the letter keys and SPACEBAR To the right of the letter keys the arrow ke...

Страница 29: ... corner of the key The DOWN SHIFT key is used in combination with the number keys 1 to 6 to enter the lower case characters displayed in red in the bottom left hand corner of the key The key in the bottom right hand corner of the keypad is the ENTER key This key is used to execute a function once data has been entered Unlike the other keys the ENTER key consists of multiple pressure sensitive pads...

Страница 30: ...eck the shipment carefully removing all packaging to ensure that all the ordered components have arrived and that there is no obvious mechanical damage from shipping Installation is not complicated and should take less than half an hour The printer is capable of exceptional print quality at high speed The performance of the system depends greatly on its proper installation Contact your local distr...

Страница 31: ...les A printer should not be placed in a location where it may be knocked or jolted The printer is also sensitive to vibration which may adversely affect print quality For the best quality of print select a power driven section of conveyor for mounting Guide bars are essential to align the product to pass the print head only just touching the front face Though items do not need to be equally spaced...

Страница 32: ... the ink dries In the C16 this is built into the nozzle plate itself In all other models the buffer plate is separate to the nozzle plate and is bolted in place The position of the buffer plate may need to be changed to correspond with the direction of product movement on the conveyor make sure that the product reaches the buffer plate before it reaches the nozzle plate This involves removing the ...

Страница 33: ...Mounting Bolts M5x10 C Mounting Bolts M8x20 Mounting Washers M8 Mounting Nuts M8 D Vertical Mounting Bracket MF006 E Height Adjustment Knob M8x15 F Slide Bar MF 005M G Print Head Fixing Screws M5x6 H Clamping Plate MF 008 I Overhang Adjustment Screws M5x10 A B C D E F G H I B C ...

Страница 34: ...he longest edge of each side of the base unit 3 One litre base only Fix the mounting bracket base unit assembly to the conveyor using the two sets of M8 mounting bolts washers and nuts provided C 4 Three litre base only Open the base unit door and locate the fixing holes at the rear of the cabinet Use these as a template to drill into the conveyor at the appropriate place Fix the base unit to the ...

Страница 35: ...es Two of the holes not all three will be used to fix the print head to the slide bar F Screw the two print head fixing screws G into two adjacent holes Which two are depends on the application in other words how far from the edge of the conveyor the product will be moving Do not tighten these screws yet 7 Slot the slide bar F onto the print head by passing the two fixing screws through two of the...

Страница 36: ...head or slide bar The vertical mounting bracket can also be rotated 180 to extend or shorten the overhang The vertical position of the print head can be adjusted using the height adjustment knob Voltage Setting WARNING DANGER OF ELECTRIC SHOCK Disconnect the printer completely from the mains supply before attempting any internal access or making any adjustments to the PSU Before switching the prin...

Страница 37: ...cedure CAUTION This procedure involves unscrewing the base unit case to expose the circuitry inside Do not attempt to remove the base unit case unless qualified to do so If unsure about mounting or connecting the printer call Domino Service or your local distributor for assistance One Litre Base 1 Disconnect the printer from the power supply 2 Remove the two screws indicated below from both sides ...

Страница 38: ...isconnect the printer from the power supply 2 Remove all of the visible screws from both sides of the base unit door There will be six in total 3 Open the base unit door carefully and rotate the plate containing the electronics Take great care not to stress any of the cables or pipes 4 The printer power supply PSU is located in the middle of the exposed circuitry Changing the voltage setting requi...

Страница 39: ... Models 5 Set the jumpers and fuse to match the input voltage as shown below 1L base and over the page 3L base Jumpers Fuse Location of Jumpers and Fuse in One Litre Base 240V 220V 110V 0 25A 0 25A 0 5A One Litre Base Link Settings and Fuse Ratings ...

Страница 40: ... Complete the installation process before switching on the machine Note The voltage setting on the serial number label must be changed to correspond to the PSU setting Jumpers Fuse Location of Jumpers and Fuse in Three Litre Base 240V 220V 110V 0 25A 0 25A 0 5A Three Litre Base Link Settings and Fuse Ratings ...

Страница 41: ...the first time there may be a piece of protective tubing placed over the ends of the probes Pull off this piece of tubing carefully the probes are very sharp Check that both O ring seals are present around the supply stems otherwise air and ink leaks may occur WARNING If replacing an empty ink bottle remember to switch the power off and press the pressure release valve before unscrewing the old bo...

Страница 42: ...orced on 4 Press the centre of the probe assembly firmly with the thumbs to make sure that both probes have pierced the seals Then screw the bottle cap in place 5 Tighten the bottle cap firm hand tight only Arrange the air and ink tubes so that when the door is shut they cannot be trapped in the door mechanism Switch the printer on activating the air pump before closing the door and check the cap ...

Страница 43: ...mended that to replace all the ink in the system with Domino flushing fluid for the idle period Connecting the Print Head There are two connections to the print head a black coiled power cable and a translucent coiled ink supply tube fitted with a quick disconnect QD plug Connect the power cable to the socket on the left hand side of the print head under the ledge The pins are arranged to prevent ...

Страница 44: ...n this will activate the air pump The air pump remains on whenever there is power to the system A large container not required for any other purpose will be required to catch expelled ink Press the tip of the QD plug against an internal surface of the container Ink and air will escape into the container Once all the air has been expelled release the plug sealing the ink line and connect it to the ...

Страница 45: ...ng screen will appear Ensure that the waste ink container in place then briefly cover the photocell window on the front of the print head to begin purging Four Line LCD Models Press the key labelled If a password prompt appears on the LCD panel type it in The following screen will appear Type in the number of the line that requires purging Each line will need to be purgeed in turn The C34 has five...

Страница 46: ...jets in the nozzle plate are firing consistently When finished press the ENTER key to end the purge Wipe the nozzle plate clean with a lint free cloth The printer is now ready to begin programming and printing messages If a good clean jet cannot be obtained by purging wipe the nozzle plate with a lint free cloth dipped in cleaning fluid and repeat the purge cycle For further help in obtaining good...

Страница 47: ...st of available languages will appear Use the keys to move up and down the list until the required language is located Press the ENTER key to confirm choice Languages include Password Protection To prevent unauthorised use the printer requires a password to be entered every time it is switched on Password protection can be enabled while the printer is in use by pressing the Password key labelled E...

Страница 48: ...er time the time at which the date changes as far as each production line is concerned Note Do not attempt to set the printer s clock while printing is taking place It is important that the printer is given the correct current date and time before date stamping or sell by dates can be printed Once entered the correct time will remain in the printer even if the power is switched off Press the key l...

Страница 49: ...nth and year In the example above the current date is 28 08 01 which is the 28th August 2001 D stands for day of the week In a typical system Monday 1 Tuesday 2 etc In the example above the current day is Tuesday The day of the week setting can be amended as required for instance if the working week begins on Sunday The system will calculate the current day of the week simply by using a seven day ...

Страница 50: ...change this value press the arrow key Press the key labelled The following screen will appear This prompt is the same for both types of LCD screen Amend the time by using the left and right arrow keys to move the cursor to the digit requiring change then over typing this with the new value When complete press the ENTER key Note If the rollover time does not need to be changed press the ENTER key i...

Страница 51: ...ages will be retained When the power is switched back on all the messages can be recalled As many or as few messages up to the maximum of 50 can be stored and each one can be given whichever reference number required 0 to 49 It is not necessary to start with message 0 It may be valuable to make a note of the reference number and contents of each of the messages in the system A space is provided at...

Страница 52: ... line a marker will appear a vertical line indicating the limit of entered text To move to the next or previous line of a multi line message use the keys These keys also allow the user to move to successive and previous messages in reference number order held in the printer s memory As many messages as required can be edited or created in one editing session The following message editing keys can ...

Страница 53: ... to fix the changes in the printer s memory Note Print preview is unable to show bold characters they will display as normal Reverse formatting is included to eliminate the use of added spaces within the message edit function for print alignment Therefore print in reverse will come out the same as in forward as per print preview Printing a Message To print a message enter the required message refe...

Страница 54: ...m Dot size adjustment can be applied to one particular message or to all the messages in the printer s memory Press the key labelled The following screen will appear 2 line LCD models 4 line LCD models Enter the number 0 49 of the message to change or press the key labelled to change the setting for all the messages held in the printer Now press the ENTER key Dot size set too low Dot size set too ...

Страница 55: ...outine Perform a test print If the print quality is incorrect increase or reduce the dot size value Higher values increase the dot size and lower numbers reduce it In some circumstances the value may need to be reduced to less than 100 Adjusting the line print density Use this option to adjust the print density of individual lines in a multi line message Press together the keys labelled Dotsize Ne...

Страница 56: ... to store the changes in memory and exit the line print density setting routine Adjusting the Speed Use this option to match the speed of printing the rate at which vertical lines in the dot matrix are produced to the speed of the conveyor The faster the conveyor the faster the text must be printed in order to be legible Speed adjustment can be applied to one particular message or to all the messa...

Страница 57: ...ter the number 0 49 of the message to change or press the key labelled to change the setting for all the messages held in the printer Now press the ENTER key If a specific message is chosen the screen will change to 2 line LCD models Speed set too low Correct speed For which msg for all For which message Enter number or press for all Speed New value ...

Страница 58: ...r characters higher numbers produce a slower print rate forming broader characters The faster the conveyor the smaller the speed value This may need to be fine tuned in order to obtain optimum print quality When finished press the ENTER key to store the changes in memory and exit the speed setting routine Type in a new number or press EXE to quit Speed Enter new value All messages new value Now al...

Страница 59: ...ay is normally set for each individual message since different messages will be of different lengths Long messages may need shorter delay times than brief messages The delay value used will also depend on the speed of the conveyor faster conveyors may need lower delay times Press the key labelled The following screen will appear 2 line LCD models 4 line LCD models Small delay setting message print...

Страница 60: ...ange to 2 line LCD models 4 line LCD models Type in a value between 0 and 255 Higher numbers increase the delay time retarding printing along the side of the product A value of 0 means that there is no delay in other words the message will begin printing the moment the photocell is triggered When finished press the ENTER key to store the changes in memory and exit the delay setting routine Delay N...

Страница 61: ...r on the line The system assumes a normal conveyor movement from right to left Forward printing means that the first character of the message is printed first just like a typewriter Reverse printing means that the last character is printed first Press the key labelled The following screen will appear 2 line LCD models 4 line LCD models Printing forward for a conveyor moving right to left Printing ...

Страница 62: ... enabling the message to be printed upside down When printing inverted messages on conveyors moving right to left the message direction will also need to be set to reverse Press the key labelled The following screen will appear 2 line LCD models Printing normal for a conveyor moving right to left Printing inverted for a conveyor moving right to left Printing inverted and reverse for a conveyor mov...

Страница 63: ... the message is inverted not the whole message So a four line message which prints like this in normal orientation will print like this in inverted orientation Each line of the message has been inverted but line 1 is still line 1 line 2 is still line 2 and so on The layout of the message may need to be amended ensure legibility in multi line messages Set orientation press N for normal I for invers...

Страница 64: ... last time the value was reset to zero It is not the same as the box count automatic attribute Press the key labelled The following screen will appear 2 line LCD models 4 line LCD models The current product count appears at the top of the screen This value can be reset to zero at any time by pressing Count Zero count Y N Box count Press Y to zero the count or any other key to leave it ...

Страница 65: ...ction has been set To maintain security whenever the password is entered in order to access a printer function the password characters will not appear on the screen Instead a series of ash marks will appear e g To set up a second password press together the keys labelled At the prompt type in the new password Printer passwords can be up to six characters in length using any alphanumeric characters...

Страница 66: ... messages have been erased it will not be possible to retireve them Press together the keys labelled The following screen will appear 2 line LCD models 4 line LCD models Enter the password If password is less than 6 digits press enter key The screen will change to 2 line LCD models 4 line LCD models Press to erase all messages from the printer s memory or any other key to exit the routine Type in ...

Страница 67: ...characters long This includes any non printing formatting codes Note The lower case letters on the keypad do not print They are used exclusively as codes To include a non printing bracket in a message hold down the key labelled while pressing the relevant number key To include one of these lower case letters in a message hold down the key labelled while pressing the relevant number key The letter ...

Страница 68: ... and off No confirmation message will appear do a test print to check that zeros are printing correctly Bold All or part of any message can be printed in bold text Unless specified messages always print in normal text Bold text produces thicker letters as shown below To print in bold enclose the relevant part of the message in the curly brackets which can be accessed by holding down and pressing A...

Страница 69: ...te bold text the text size formatting code encloses the text whose size requires changing Any text outside of the formatting code prints in the standard size The text size formatting code consists of two separate parts a start code and an end code The start code says everything that follows up to the end code is to be in this size of print Though the start code is different for each different size...

Страница 70: ...one size of text can be used in the same message line For example This prints Weight in standard size 7x5 text 4 5 in size 10x10 text and Kg in size 5x5 text Size of Text Start Code End Code C7 7 x 5 None None 5 x 5 cA e C16 7 x 5 None None 5 x 5 cA e 10 x 10 see Note 1 below c2cA e 16 x 10 see Note 1 below c2 e C34 7 x 5 None None 5 x 5 cA e 10 x 10 see Note 1 below c2cA e 16 x 10 see Note 1 belo...

Страница 71: ...placed on the first or third line Where a piece of text fills more than one message line the other text in the message must be placed carefully to make room for it If necessary the printer will shift any text on succeeding lines to the right of multi line text For example Large text occupies two message lines so Second small text is shifted to the right to make room Note that the two lines of smal...

Страница 72: ...rint before the large text The rest of line 2 has been shifted to the right In this example the word Packs has been shifted to the right Note the double space after the word KG used to line up the word Packs with Catering These are fairly straightforward examples using only two sizes of text in two line messages Using messages of more than two lines or using four line as well as SMALL TEXT LARGE T...

Страница 73: ...or example by sweeping a piece of paper or card across the front of the printer to check message programming It may even be useful to map the message out on a grid of squared paper For a C34 a grid 4 squares deep will be needed Use one square per single line character a block of four squares per two line character and a block of sixteen squares per four line character The longest possible message ...

Страница 74: ...cell will be printed 001 the following 002 and so on The maximum box count will be 999 after which numbering will revert to 000 and continue incrementally from there as before Incremental box counting can begin from any value The number framed by the brackets is the number from which counting will begin So an entry of 100 will begin with 100 101 and so on up to 999 when it will revert to 000 The n...

Страница 75: ...or formatting codes a system of nesting is used with one set of codes nested inside another This is explained below To print an incremental or decremental box count in a different text size than standard or as part of a longer message nest the automatic attribute inside any other formatting code to be used For example In this example the words Box number will be printed in standard size text on ea...

Страница 76: ...irst box on pallet 2 Pallet 2 Box 1 There are two parts to the pallet count procedure both of which must be performed correctly for pallet counting to commence First tell the system the number of boxes per pallet for each message which uses pallet counting then create a pallet count automatic attribute in those messages Setting Up Counting To record how many boxes are held on each pallet press tog...

Страница 77: ...otal of 999 pallets can be counted For example The two numbers give the start values for the box and pallet counts The box count value must be two digits long 00 to 99 and the pallet count value must be three digits long 001 to 999 In the example above both box and pallet counts will begin at 1 The code letters b and p are not printed With the boxes per pallet count set a 50 the first box along th...

Страница 78: ...a variety of formats entirely defined by the user Note Ensure the system date and time are correct using the CLOCK function Both date codes and sell by dates rely on the printer s internal clock being accurate For information on changing the printer s internal clock see page 48 The date code automatic attribute consists of a set of formatting letters and optionally punctuation marks enclosed in th...

Страница 79: ...ample AB represents hours in the twenty four hour clock 00 to 23 and CD represents minutes 00 to 59 Here the punctuation mark has been used to separate the three sets of code letters EF GH and IJ It prints the current date in day month and year order 25 01 01 for example When printed day of the year either code always pads out values under 100 with zeros for instance 001 or 023 Numerical day of we...

Страница 80: ... nested inside text size formatting codes Printing a Sell by Date Sell by dates use the same code letters as date codes see the table in the previous section allowing them to be printed in a wide variety of formats entirely defined by the user Again since sell by dates are calculated from the printer s internal clock make sure the clock is correctly set before attempting to print Note It is vitall...

Страница 81: ...st of a number of punctuation marks colons obliques and spaces just as when printing a date code and the date code letters EF GH IJ and RST None of the other date code letters are used End code e For example In this example the code cd has been used telling the system to add a number of days to the current date to calculate the sell by date The three digit number that follows gives the number of d...

Страница 82: ...tion shifts can be programmed into the printer each designated a shift code letter defined by the operator for example A B C D This shift code letter can be included in messages for printing automatically changing when the shift changes There are two parts to the printing shift codes procedure First set up the number and times of the shifts used then create a shift code automatic attribute in the ...

Страница 83: ...ered press the DOWN arrow key The screen will change to 2 line LCD models 4 line LCD models Enter here the start time of the second shift of the day and its shift code letter In the example above the second shift starts at 10 00 and has been designated the shift code letter B Now press the DOWN arrow key again The third shift setup screen will appear Enter here the start time of the third shift of...

Страница 84: ... 4 line LCD models Continue to use the DOWN arrow key to loop through the four screens until the shifts are correctly entered When finished press the ENTER key to store the shift details in the printer s memory Enter start time and letter to print for each shift 3 16 00 C From SHIFT 4 22 00 D Enter start time and letter to print for each shift 4 22 00 D ...

Страница 85: ...ter similar to those used when printing the current date or time must be included in fact the shift code letter operates exactly the same way as any of the other letters used in date codes Just like date code letters the shift code letter is enclosed in square brackets For example This message prints Packed on shift followed by the current shift code letter PACKED ON SHIFT A Since the shift code l...

Страница 86: ...ome into contact with water or other liquids ROUTINE MAINTENANCE Under normal operating conditions the printer requires minimal maintenance A few periodic checks are all that is needed to keep the system running at optimum performance Inspect and clean the system regularly Periodic maintenance will be required at the beginning and end of each working day before holidays and every six months Most m...

Страница 87: ...an empty bottle Dust from the environment particularly cardboard paper and fibre dust can mix with the jet mist on the front of the nozzle plate and form a sticky paste that disrupts the jet pattern or can cause a complete jet blockage With a clean lint free cloth dipped in domino nozzle cleaner wipe the front of the nozzle plate sideways to remove any contamination Clean the photocell window Chec...

Страница 88: ...ottom edge of the print head not those further up and lift off the top of the chassis complete with keypad LCD display and electronics Support the top out of the way or disconnect the cables do not let it hang Replace the ink filter checking that it is installed correct way around an arrow is printed on the filter to show ink flow direction toward the nozzle plate To help eliminate air in the ink ...

Страница 89: ...urge Individual missing jets can be restored by checking the nozzle plate then the tubing inside the print head leading back to the relevant valve The ink problem can be followed back to the distribution assembly after which the ink path is common to all valves If the tubes are not blocked the solenoid valve itself is suspect This is easily isolated by plugging a known good valve into the suspect ...

Страница 90: ...cle of dust may be trapped inside the jet The syringe flushing method will have to be used to remove it Switch off the power and remove the print head cover With a small flat bladed screwdriver gently pry off the valve outlet tube which is connected to the suspect jet noting the refitting order if more than one tube is released The valves plug into the board and can be pulled out to make this oper...

Страница 91: ...acters when reassembled Shown on the following pages are tubing order diagrams which clarify the connections between the jets on the nozzle plate and their corresponding solenoid valves All valve diagrams are viewed from the rear of the print head looking forward It is very important that outlet tubing from one valve is not transposed to another valve outlet as this creates a character illegibilit...

Страница 92: ...22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9 12 11 10 9 8 7 6 5 4 3 2 1 23 22 21 20 19 18 17 16 15 14 13 Model C7 Solenoid Valve and Nozzle Distribution viewed from rear of chassis Model C16 Solenoid Valve and Nozzle Distribution viewed from rear of chassis Model C34 Solenoid Valve and Nozzle Distribution viewed from rear of chassis ...

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