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1. Remove the connector cover and check that the four motor leads are seated in their individual connector slots Measure about 6 ohms resistance between pins 1 and 3 and between 4 and 5 of the motor connector If not replace the motor see 5 5 10 7 Repair or replace the main PCB with a bad U6 or U7 driver circuit O1 N Oo 40 5 6 7 No Print or Light Print 5 6 8 Ifthere is no printhead noise when the carriage traverses a document 1 Check that the printhead is plugged into the carriage flex cables 2 Check that the flex cables are plugged into the main PCB J3 and J4 3 Replace timer U13 or MOSFET Q7 on the main PCB 4 Repair or replace the main PCB with a bad driver circuit If there is printhead noise but there is no print or light print 1 Correctly install the ribbon cartridge see 3 1 or replace it if worn out Remove the cartridge and check for jammed ribbon Check that the cartridge knob rotates as the carriage traverses Check that QUIET MODE is turned off under 92 FUNCT Check the printhead gap at both ends of the platen see 5 4 1 Clean the printhead see 5 1 4 Check that the carriage flange that clamps the drive belt is not bent down 2 3 4 5 Check the NORMAL and CQ DARKNESS parameters see 3 5 4 7 8 9 1 0 Check that the ribbon shield is pushed up until it clicks into place Print Quality Symptom Condition Remedy Print not dark enough on receipts or multipar
2. I FF DC Eject document Ch OD Print buffer SO OE Begin expanded characters SI OF End expanded characters C or Begin 17 characters inch print I DC1 DLE 11 10 Key buffer request use ESC DC1 or ESC DLEin mode 1 DC2 12 Line count request C or Begin 10 characters inch print 1 DC3 ETB 13 17 Load upper display delayed use ESC DC3 or ESC ETB in mode 1 DC4 14 Master reset C or End expanded characters I CAN 18 Clear the print buffer I EM 19 Document length request C SUB 1A Status request delayed use ESC SUB in mode 1 ESC STX 1B 02 Print sideways in landscape mode ESC SO 1B OE Begin double height characters C ESC SI 1B OF End double height characters C ESC n 1B2Dn Begin n 1 or end n 0 underscore I ESCn 1B 3 Feed document up 120 inches C ESC 0 1B 30 Set 1 8 inch line spacing I ESC 1 1B 31 Set 7 72 inch line spacing I ESC 2 1B 32 Set line spacing stored by prior ESC A I ESC 3n 1B 33 n Set n 216 inch line spacing I ESC 4 1B 34 Eject the document I ESC 5n 1B 35 n Begin n 1 or end n 0 automatic LF after CR I ESC 1B 3A Begin 12 character inch printing I ESCA 1B 41 Begin 60 dot inch graphics C or Store n 72 inch line spacing I ESC B 1B 42 Begin 120 dot inch graphics C or Set vertical tabs I ESCD 1B 44 Set horizontal tabs l ESCE 1B 45 Begin bold print ESC F 1B 46 End bold print ESC G 1B 47 Begin correspondence quality CQ print 1B 48 End correspondence quality print 1B4
3. On revision F and later boards the printwire bits remain set until 320 usec after FIRE began and Q8 has been jumpered to provide a direct connection between diodes D7 to 30 and 38VDC See Figure 4 2 for typical waveforms 4 2 5 Keypad and Display Refer to Schematic 72135 The keypad switches are arranged in a 8 by 2 X Y grid KEYSCANO and KEYSCAN1 at J11 pins 12 amp 11 drive the grid rows and the grid columns are read into the 68HC12 on KEYBDO through KEYBD7 at J11 pins 3 through 10 The display is a 2 line by 16 character liquid crystal display LCD with integral electronics When the 68HC12 is ready to display data it reads status from the LCD and if the LCD is ready to accept data the 68HC12 writes ASCII characters to the LCD The LCD then generates and displays the corresponding character patterns 4 2 6 Sensors Seven optical reflective sensors are used the left home sensor for carriage position four document sensors for document presence alignment and position one document edge sensor located on the carriage and the cabinet open sensor on the main PCB All sensors operate in the same way a constant current is provided to the sensor s light emitting diode LED through a resistor to 5 volts If an object carriage document or cover reflects the LED light onto the corresponding phototransistor the transistor turns on raising its emitter voltage to 2 to 4 VDC The 68HC12 reads and digitizes the phototransistor emitter outp
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5. 32 Each 3718 is controlled by 3 signals driven from the 68HC12 a phase signal which indicates which direction current is to flow through the coil and two signals which limit the current to 0 20 60 or 100 of a maximum value determined by the external resistor 0 is used to turn off a winding 20 is used when the motor is holding a fixed position and 60 or 100 is used when the motor is rotating See Figure 4 1 for typical voltage waveforms on both ends of a motor coil and the external resistor The ground plane under the 4 3718 s is connected to the rear panel heat sink to reduce the temperature rise Motor rotation occurs by sequentially changing the phase and current signals to the two motor coils Motor speed is controlled by how rapidly the signals are changed Following is a state table where each state change rotates the document motor rotor 1 400 of a revolution 1 120 of document motion and there are 8 distinct states before the pattern repeats Direction of motor rotation can be reversed by moving up rather than down through the state table The 2 motor windings are labeled Phase A and Phase B and the phase and 2 current level signals for each winding are shown The state table for the carriage motor is similar but the states with 0 current are skipped so each state change rotates the carriage motor rotor 1 200 of a revolution 1 120 of carriage motion Phase A IOA 11A Phase B I0B MB 000 000 000 000 0000 OO0O o0o0o0 0
6. DP8 3 million characters DP9 5 million characters 1 2 Document Characteristics Media Print Line Width Form Width Form Height Form Thickness Non printable areas 1 3 Interface Standard Serial Command Sets Protocols Optional Power Input Single sheets multipart forms up to 6 parts passbooks amp envelopes DP8 5 6 142mm DP9 8 2 208mm 2 5 64 mm to 6 5 165mm in DP8 or 9 7 246mm in DP9 DP8 wider forms printable in landscape mode 2 5 64 mm minimum no maximum 0 0035 0 09 mm to 0 062 1 57 mm Top of form 0 16 4 1mm Above horiz fold 0 38 9 7mm Below horiz fold 0 30 7 6mm Bottom of form 0 45 11 4mm Vertical fold edge 0 25 6 4mm RS 232 1200 38400 baud 11KB buffer dual ports on DP9 IBM Proprinter 4722 Unisys and Craden DTR Xon Xof USB port Parallel port 100 240 VAC 43 63 Hz 80 W max 1 4 Physical Characteristics Dimensions Weight DP8 10 6 269mm wide 7 2 183 mm deep 7 178 mm high DP9 13 8 351mm wide 9 8 249mm deep 7 2 184mm high DP8 11 pounds 5 kg 1 3 pounds 0 6kg packing DP9 14 4 pounds 6 5 kg 3 4 pounds 1 5 kg packing 1 5 Environment amp Standards Operating Storage Standards 10 to 40 C 10 to 90 humidity 30 to 70 C 5 to 95 humidity UL 1950 amp Canadian UL Listed FCC 20780 Class A certified IEC 950 amp CE certified 2 0 2 1 INSTALLATION Installation Procedure Read 3 1 to 3 5 2 on Ope
7. Data to Printer 2 3 2 Data from Printer 8 5 8 DTR to PC CTS 6 20 4 6 PC DTR to PC DSR 5 7 5 Signal Ground 3 13 Problem Solving These are the most common printer problems that can be solved by an operator If multiple printers are at one site it can be useful to swap printers and cables to isolate a problem to a printer cable or host Printer 92 FUNCT and Communication 93 FUNCT parameters should be set the same for all printers Service 94 FUNCT parameters should be set per the label inside each printer 3 13 1 No Display or Blocks Displayed If nothing appears on the display on power up check that 1 The power switch on the rear of the printer is ON 2 The input power cord is plugged into both printer and supply outlet 3 The contrast knob is adjusted for proper contrast 4 The input power cord is plugged into a live supply outlet 3 13 2 Unchangeable Configuration Parameters If configuration parameters cannot be changed with the AT key the keypad is probably locked See 3 5 3 to unlock the keypad 20 3 13 3 No Document Motion If a document will not advance upon insertion 1 Press EJECT if a previous document had been manually removed without an eject command 2 Press AT if configured for DOCUMENT INSERT WITH AT KEY see 3 5 1 3 Use 9 0 FUNCT to check the front document sensor see 3 6 2 3 13 4 Carriage Fault or No Carriage Motion If the carriage will not move after a document is inserted 1 Remove th
8. ESC 0 1 2 or 3 I mode command followed by 00 02 n n gt allows skew as follows n n 03 00 no skew control If n 01 then nz 00 allows 0 05 in 01 allows 0 08 in 02 allows 0 11 in and 03 allows 0 13 in of skew Commands unique to C mode VTn ESCn BS moves the document a variable number of lines or steps with n being a single byte bit coded as 01ULCCCC C mode only where U 1 Up feed U 0 Down feed L 1 Line feed 1 6 or 1 5 L 0 Step feed 1 60 CCCC Line count or step count moves the document up CCCC 120 inches where n is a single byte bit coded as 0011CCCC C mode only moves the document down one line with spacing keypad selected see 3 5 1 or set by an HT C mode or ESC 0 1 2 or 3 I mode command 11 12 Commands unique to mode ESC 0 ESC 1 ESC 2 ESC 3 n ESC 5n ESCAn VT ESC B ESC R sets line spacing to 1 8 inch sets line spacing to 7 72 inch sets line spacing stored by a prior ESC An sets line spacing to n 216 inch where n is a single binary coded byte sets auto LF if n 1 and resets it if n 0 A line feed is automatically performed when a CR is received if auto LF is set stores lines spacing of n 72 inch with n being a single binary coded byte but the stored line spacing will not begin until it is set by an ESC 2 moves to the next vertical tab stop or does a LF if no tabs are set nnnnn0 sets up to 64 vertical tabs at each line n with
9. and press ENTER to print 4 more lines Adjust belt tension and print as required Select the loosest belt tension that gives good alignment of characters If no setting gives good alignment adjust the CAR ALIGN parameter see 5 2 and then repeat this procedure b Procedure for printers with firmware EA and later see 3 7 Use 943 function to print 6 lines of double high double wide zeros and select the best line of aligned characters If none are desirable increase the belt tension by turning the adjustment screw 1 2 turn clockwise and print using 943 FUNCT again Select the loosest belt tension that gives good alignment of zeros Press 94 FUNCT and ENTER 4 times The display will read CAR ALIGN Use AT or B to enter the value printed at the end of the selected line of printed zeros 5 4 3 Document Drive Belt Tension The document drive belt connects the document motor to the rear document roller Incorrect document belt tension causes uneven line spacing and document drive stalling 1 Use a spring gauge to deflect the center of the document drive belt Adjust only if an 8 oz 225 gm force deflects the belt less than 0 02 0 5 mm or more than 0 04 1 mm 2 Loosen the 4 screws that fasten the document drive motor 3 Move the motor toward or away from the rear document drive roller to adjust the tension and tighten the screws Repeat step 1 5 4 4 Carriage Shaft Cam and Shaft Rack The carriage shaft cam sets the carriag
10. away from the platen and accommodate different thickness documents The printhead is held against the document by the carriage shaft weight and springs The carriage is lifted by a roller that rides across the document surface and maintains a constant printhead to document gap thereby maintaining print quality across a wide document thickness range An upper shaft stops the carriage from rotating around the carriage shaft A toothed belt clamped to the carriage is driven by a pulley mounted on the carriage stepper motor located on the left side of the metal box The stepper motor moves the printhead in 1 120th of an inch increments along the print line Position information is updated when the carriage is detected by an optical sensor on the Sensor PCB The ribbon cartridge is driven by a shaft which is in turn driven from the carriage motor shaft through a gear train which pivots so that the ribbon drive shaft rotates clockwise regardless of the direction of carriage motor rotation The entire carriage drive assembly lifts away from the document drive and the ribbon shield and ribbon guides mounted to the carriage lower away from the printhead for easy access to the ribbon path when replacing cartridges 4 1 2 Document Drive Assembly The document drive assembly positions inserted documents The document drive stepper motor mounted on the right side of the document drive is connected to the two drive rollers through toothed belts A pinch roller is
11. edge correctly and operator attention is required Key buffer The key buffer contains keystroke information that will be transmitted upon receipt of a DC1 Busy Either printing or document movement is now occurring Input buffer available At least 1000 characters of space are available in the input buffer or the buffer is empty Buffer operation is detailed in 3 12 1 15 16 DC1 or DLE request keypad data Upon receipt of either all keypad input that has been pressed since the previous DC1 or DLE will be transmitted A maximum of 16 strokes can be buffered Transmitted characters will be one of the following ASCII Meaning ASCII Meaning 0 9 Numeric keys 0 9 lt Either AT or BY key FUNCTion key EJECT key ENTER key End of buffer The last character transmitted is always a If a DC1 or DLE is received and no keys have been pressed only a will be transmitted As numeric keys are pressed their values are displayed on the lower display line Pressing ENTER or FUNCT transfers the key strokes to the key buffer Pressing CLEAR deletes numeric keystrokes before they are transferred to the key buffer Functions beginning with 9 are reserved for internal printer operation and are not transferred to the key buffer See 3 5 to 3 8 for the internal printer function details DC2 requests line count information Upon receipt 2 bytes are transmitted The first byte indicates the number of lines and the second indicates the numbe
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13. for the parallel interface to indicate off line ALWAYS whenever no document is in the printer or ALWAYS to always indicate on line 3 5 3 Override Parameters Press 99 FUNCT to display the following Override Parameters Only trained personnel should make changes DISPLAY REMARKS LOCKED or UNLOCKED LOCKED allows parameters to be displayed but not changed UNLOCKED allows parameters to be changed with the AT key COVER OVERRIDE OFF OFF requires the cabinet to be closed for printing to occur ON orON allows trained personnel to print with the cabinet open Closing the cabinet automatically sets the override OFF 3 5 4 Service Parameters 3 6 3 6 1 Press 9 4 FUNCT to display the following Service Parameters These parameters are factory set specifically for each printer and recorded on the configuration label behind the display inside the printer They do not usually need to be modified by the user If changes are made to these settings write the new setting on the configuration label CAUTION CHANGE OF THESE PARAMETERS BY UNTRAINED PERSONNEL MAY RESULT IN INCORRECT PRINTER OPERATION DISPLAY TOP OFFSET XX LEFT OFFSET XX LEFT MARGIN XX CAR ALIGN XX FORWARD COMPENSATION XX REVERSE COMPENSATION XX EJECT HOLD OFFSET XX CONFIGURATION XX GATE OFFSET XX EDGE SENSOR XX NORMAL DARKNESS 10 to 10 CQ DARKNESS 10 to 10 PRINTHEAD TYPE Diagnostics Power Up Diagnostics REMARKS Ad
14. from the switching power supply is converted to 5VDC 12VDC and 12VDC by switching regulator V1 or alternate V2 using Schottky diode D31 and a small cube switching transformer The 100KHz switching frequency is set by C19 amp R38 The 5VDC is monitored by Q3 so that the electronics are held reset if the 5VDC is not stable 4 2 2 Microprocessor System The 68HC12 microcontroller U10 has a 250 nanosecond cycle time that it generates from 16Mhz crystal Y1 Each cycle the 68HC12 provides a timing pulse on TP1 for synchronizing the devices on the data bus and updates the address on pins A0 A18 The high order address lines are decoded by the 68HC12 to generate chip selects to the RAM and flash memory The 32 KByte RAM U9 is selected by U9 pin 20 The RAM provides workspace and buffer memory for the 68HC12 All printer communication and service configuration parameters are stored in EEPROM internal to the 68HC12 The128 KByte flash memory U8 is selected by U8 pin 22 This memory contains the dot patterns for all printable characters and all programs that the 68HC12 executes to control the printer 4 2 3 Stepper Motor Drivers Each stepper motor has 2 stator coils each driven by a 3718 driver U1 2 6 and 7 Each 3718 contains 4 transistors arranged in a H Bridge that can apply 38 VDC to either end of the coil a 25KHz switching oscillator and comparators that limit the coil current by sensing the voltage on an external resistor R4 6 29 or
15. in a DP9 or at least a 5 8 wide by 6 high in a DP8 1 3 11 3 1 2 3 4 5 6 3 11 4 1 Right click on the printer icon just installed and then left click on Properties Ports and Configure Port Insure that the configuration matches the printer s 9 3 FUNCT parameters Recommended port settings are 38400 baud 8 data bits no parity 1 stop bit and hardware flow control Corresponding 9 3 FUNCT values are DTR 38400 8 NONE 1 MULT emulation and auto CR on feed Click OK General and Print Test Page to print on the installed printer Installing Craden USB Drivers on WINDOWS NT 2000 OR XP Connect the printer to a PC USB port with a USB A B cable Turn on printer power The New Hardware Found Wizard screen will then display Click Next to display Install Hardware Device Drivers and click next to display Locate Driver Files Select Floppy Disk Drive and click next Click Next when Get Driver Files Search Results displays and click Finish when Completing the Found New Hardware Wizard displays Steps 2 and 3 will now repeat and install additional drivers Click Start gt Settings gt Control Panel Double click System gt Hardware gt Device Manager Double click Ports gt USB Serial Port Click Port Settings and select 38400 baud for DP8 or 19200 baud for DP7 8 data bits no parity 1 stop bit and hardware flow control Click Advanced to display which unused COM port will be used for all
16. printable ASCII characters and positions the print pointer so the next character will be printed over the last character moves the print pointer to the next horizontal tab to the right if one is set starts 17 1 character inch printing stops 12 or 17 1 character inch printing and returns to 10 cpi stops double width character print clears all previously received data out of the buffer starts 12 character inch print nnnnn0 sets up to 28 horizontal tabs at each column n with each n being a single binary coded byte and terminating with a 0 byte ESC D 0 clears all horizontal tabs sets all horizontal tabs to default values of column 9 and every eighth column to the right and clears all vertical tabs starts continuous underscoring if n 1 and stops it if n 0 13 ESC C clears all data out of the buffer and switches the interface to Mode C 3 10 4 Low Density Graphics Commands These commands emulate low density graphics printed by a 9 dot printhead New applications should use the high density graphics commands intended for a 24 dot printhead Low density graphics may be printed at 60 120 or 240 dots inch dpi horizontally by 72 dpi vertically ESC K sets 60 dpi ESC L or ESC Y set 120 dpi and ESC Z sets 240 dpi ESC Y prints at full speed but adjacent horizontal dots are prohibited ESC L prints slower without this restriction Each command is immediately followed by m and n a 2 byte data count indicating that the number of fol
17. pulleys are tight on their shafts 5 Check the document drive belt tension see 5 4 3 6 Check that the roller springs are properly adjusted See 5 4 5 and 5 4 8 5 6 11 Erratic Character Spacing or False Document Jams If horizontal character spacing is erratic or preprinted forms are not correctly printed 1 Check for correct CHARACTERS INCH settings see 3 5 1 2 Check that the carriage moves freely by hand 3 If the carriage shaft shows any residue build up wipe it clean with a soft dry cloth 4 Check the carriage belt tension see 5 4 2 5 Tighten the drive pulley set screw on the carriage motor shaft 5 6 12 Interface Inoperative If the printer works in self test but won t run from the interface 1 Check that the I O cable is correct for your application see 3 11 3 2 Check for firm mounting of the interface cable 3 Check for communication parameters set to match the host system see 3 5 2 4 Check for correct interface wiring see 3 11 3 5 Press 9 4 2 then FUNCT to print all previously received data immediately after the transaction Control characters print as underlined lower case 6 Check that CTS on I O pin 7 is either not connected or is driven above 3V 7 Replace the interface circuits in main PCB U14 and U15 41 42 5 6 13 Diagnostic Flowchart Use this flow chart to assist in troubleshooting Is the display on the printer blank Do the keys on the keypad work See 3 2 f
18. shield installed correctly 5 4 1 1 Quiet mode set to Y Darkness set too low 3 5 1 3 5 4 Does the ribbon knob turn as carriage moves Ribbon guide plate pushed up completely 5 4 1 1 Paper dust or debris inside printer 5 1 3 Blow out debris with compressed air Multisensor cable seated correctly 5 1 3 Characters per inch setting OK see printer parameter LINES INCH 3 5 1 Check all service parameters 3 5 4 e Check interface cable mounting pg 44 e Communication parameters match host system 3 5 2 5 7 RECOMMENDED SPARE PARTS Machine Population 1 10 25 Class A Spares Qty 1 1 Class B Spares Qty 1 Class C Spares Qty N DESCRIPTION Class A Ribbon Shield Printhead Assy Main PCB Assy Sensor PCB Assy Cleaning Kit Technical Manual Class B Alphanumeric Display DP8 Keypad Assy DP9 Keypad Assy Power Supply Assy Edge Sensor Assy Class C DP8 Printhead Cable Assy DP9 Printhead Cable Assy DP8 Carriage Belt Assy DP9 Carriage Belt Assy Document Drive Belt 90T080P Motor Assy 5 8 RECOMMENDED SERVICE TOOLS 1 and 2 Phillips Screwdrivers 3 16 5 16 and 11 32 Open End Wrenches 050 1 16 5 64 and 3 32 Allen Wrenches _ N PART 73813 1 73812 1 72135 1 72132 1 73297 8 99090 53025 72133 1 72133 2 72137 1 72155 1 72142 1 72142 2 73805 1 73805 2 67351 73820 1 _ NOO 0 250 10 2 if with USB option The DP8 and DP9 use the
19. spring loaded against each drive roller providing friction feed for documents of varying thickness Documents are fed between the drive and pinch rollers with the spring loaded pinch roller automatically adjusting to the document thickness The stepper motor positions in 1 120th of an inch increments The presence of a document in the input tray is sensed by the frontmost of four optical sensors located above the document path When auto alignment is active a gate is raised across the document path during document insertion At that time the printhead moves past its normal left home position activating an arm that raises the gate The rising gate reduces the spring loading force on the front document drive rollers allowing documents to rotate and align against the gate Three optical sensors in line behind the front rollers check the leading document edge to insure that it is sensed within a programmable alignment tolerance These sensors are also used to position the top or bottom edge of the document relative to the printhead After alignment is verified the printhead moves to the right lowering the gate out of the document path and restoring normal loading force to the document drive rollers 4 1 3 Switching Power Supply The switching power supply is mounted to the inner front surface of the metal box AC line voltage is wired through a power switch to the power supply The power supply provides regulated 38VDC to the Main Printed Circuit Boar
20. to display Skew Calibration 2 Insert a document with known square top and left edges If the document inserts straight and its top edge is parallel to the input guide edge press ENTER to calibrate the skew sensors and exit If the document did not insert perfectly press EJECT and insert again 5 5 REPLACEMENT PROCEDURES 5 5 1 Cabinet 1 Turn off power 2 Insert a small flat screwdriver blade in the slot in the middle of the rear cabinet edge and pull down to flex and remove the hinge wire that fastens the cabinet to the mechanism 3 Press the cabinet latches and lift off the cabinet 4 To install the cabinet raise the rear panel heatsink and place the cabinet on the baseplate so that the latches fasten Insert one end of the hinge wire through the box flange and into the cabinet hinge plate Flex the wire and insert the other end through the other box flange and hinge plate so that the wire snaps straight 5 5 2 Main PCB 1 Record all FUNCT 92 and 93 parameters so the new PCB can be configured correctly 2 Disconnect the interface cable and remove the cabinet See 5 5 1 3 Disconnect the following cables from the Main PCB J1 DC power J11 keypad J2 document motor J12 display J384 printhead J13 edge sensor if installed J5 document motor J15 home amp document sensors J9 DP9 dual port J17 parallel port if installed 4 Remove the 5 screws fastening the Main PCB to the rear panel heatsink 5 To replace the PCB rever
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22. will override automatic alignment for one document erases any previously keyed digits before they are transmitted to the host by the FUNCT or ENTER keys transmits previously keyed digits to the host system All responses are host defined This key also initiates document printing if the printer is configured to delay printing until the ENTER key is pressed See 3 5 1 enter digits to be transmitted to the host by the FUNCT or ENTER keys Key depressions appear on the lower display line 3 3 Display Operation The display has 2 lines of 16 characters each and is used to display messages both from the printer and the host system There is a contrast knob to the left of the ribbon instruction configuration label that should be adjusted for maximum legibility depending on the display viewing angle See the printer diagram on page 43 When the printer is turned on READY will be displayed DP9 printers have green lamps to identify which port is active when DUAL PORT is set to Y see 3 5 2 The lamp labeled A indicates the port closest to the printer s left side is active and the lamp labeled B indicates the port closest to the printer s right side is active Keypad amp Display Panel If one of the green lights is on and there is no paper in the printer there is more print pending Insert paper and the printer will finish printing 3 4 Document Insertion Document edge auide Insertion procedures may be custo
23. 4 If mechanical parts are replaced some parameters may have to be reset New parameter values should be marked on the configuration label The service parameters are determined by using 95 FUNCT local print and either 955 and 944 FUNCT or just 943 FUNCT as described below Parameter values are changed with the AT and B keys After changing a parameter use 95 and either 955 and 944 or just 943 to obtain new print samples Re measure all distances and re adjust if necessary TOP OFFSET is set so the distance from the top document edge to the center of the first line printed by 95 FUNCT is located as specified by LINE 1 XXX 250 is the default factory setting under 92 FUNCT LEFT OFFSET is set so the carriage can still move leftward from its home position 0 01 to 0 02 0 3 to 0 5mm before it contacts the gate arm that raises the alignment gate LEFT MARGIN is set so the distance from the left document edge to the left edge of the first character printed by 95 FUNCT is 0 20 5 1mm if edge sensing is not installed EDGE SENSOR parameter will not appear below CAR ALIGN is set so either the vertical strokes of H s printed by 955 FUNCT firmware E9 and earlier from right to left align with those printed left to right or the zeros printed by 943 FUNCT firmware EA and later align See 5 4 2 for precise adjustment but do not change the belt tension unless necessary FORWARD and REVERSE COMPENSATION are set using either 943 or 944 FUNCT a Proced
24. 4 7 FUNCT AT 2 Press FUNCT to adjust gate height The gate fingers should be as close as possible within 0 02 or 0 5mm to the input guide without touching it Each press of AT will slightly raise the gate and each press of B will slightly lower the gate When the gate is at the correct height press ENTER 3 Press B to lower the gate and then press AT to check for correct gate height Press BJ to lower the gate and CLEAR to exit the test Roller Segments Input Guide Roller Shaft Gate fingers Looking into the document drive Input tray removed for clarity Gate in up position 34 5 4 8 Front Document Roller Spring Force Gate travel must be properly adjusted see 5 4 7 before roller spring force is adjusted 1 Raise the gate by pressing 9 4 7 FUNCT TA 2 Rotate a lower drive gear to manually feed an 77 wide strip of the thinnest paper used usually a receipt copy under the rightmost front upper roller segment 3 Adjust the right side roller spring tensioning screw so there is a very light drag from the roller on the paper while rotating a lower drive gear Clockwise adjustment increases drag 4 Repeat steps 2 and 3 for the leftmost roller segment and the roller spring tensioning screw on the left side plate Roller spring tensioning screw 2 5 4 9 Auto Alignment Skew Sensor Calibration This procedure calibrates the relative position of the 3 skew sensors with a known square document 1 Press 9 4 6 FUNCT
25. 9n Begin CQ n 2 or normal n 0 print 1B4An Feed document up n 216 inches 1B 4B Begin 60 dot inch graphics 1B 4C Begin 120 dot inch graphics 1B 52 Set all tabs to default values I 1B 53 01 Begin subscript print 1B 54 End subscript print 1B 57 n Begin n 1 or end n 0 expanded chars 1B 58 Set left and right margins at columns m and n 1B 59 Begin 120 dot inch full speed graphics 1B 5A Begin 240 dot inch graphics 1B 5B 40 Begin or end double high or wide 1B 5B 46 Set skew allowance 1B 5B 49 Set character pitch 1B 5B 4A Set 1 5 inch line spacing 1B 5B 64 Set print quality 1B 5B 67 Set graphics mode 1B 5D Reverse line feed 1B 64 Move print position 1B 7E 43 Select Mode C 1B 7E 49 Select Mode 1C Load lower display immediate use ESC FS in mode 1D Load lower display delayed use ESC GS in mode 1En Skip n blank spaces in print line C 1F Begin End underscore C 3 10 2 Document Movement Commands Commands common to both C and modes LF ESC Jn FF ESC J ESC ESC F moves the document up one line with line spacing keypad selected see 3 5 1 or set by an HT C mode ESC 0 1 2 or 3 I mode command moves the document up n 216 inches with n being a single binary coded byte or ESC 4 I mode only ejects the document followed by the 4 byte hex sequence 02 00 20 01 sets line spacing to 1 5 inch moves the document down one line with spacing keypad selected see 3 5 1 or set by an HT C mode or
26. D CLEANING 5 1 1 Lubrication There are no lubrication points in the printer All parts are either permanently lubricated or are designed to operate dry No lubricants should be used They may adversely affect operation 5 1 2 Document Feed Roller Cleaning 1 Open the cabinet 2 Moisten a lint free cloth with isopropyl alcohol and wipe the front rollers while rotating the gear on the end of the roller shaft Do not use any strong solvents in place of alcohol 3 In similar fashion clean the rear rollers Make sure all rollers are dry and free of residue 5 1 3 Sensor Cleaning Clear sensor light paths of paper paper dust and other obstructions if rollers continue to run when no document is present or other sensor problems occur MultiSensor M R Cable Middle Right Sensor Sensor Sensor Must be seated in Senses Senses Detects Detects connector document document skew skew properly insertion top edge 1 Insert the flexible nozzle tube of a compressed air can under the input guide and near each of the document sensors Clear each sensor area with a 5 second burst of air 27 5 1 4 Printhead Cleaning Perform if printwires stick when printing begins or print quality becomes intermittent Be sure to check the ribbon first The 73297 8 Printer Cleaning Kit contains all necessary tools 1 Open the cabinet and remove the ribbon cartridge 2 Remove the printhead attachment screw 3 Disconnect the printhead from the printhead flex ca
27. DP8 amp DP9 DOCUMENT PRINTERS TECHNICAL MANUAL P N 99090 REVISION 7 712007 7860 AIRPORT HIGHWAY PENNSAUKEN NJ 08109 856 488 0700 856 488 0925 FAX Wwww craden com WARNING This equipment generates uses and can radiate radio frequency energy and if not installed in accordance with the instruction manual may cause interference to radio communications It has been tested with a Class A computing device and has been found to comply with Part 15 of FCC rules which are designed to provide reasonable protection against such interference when operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to correct the interference REVISION DATE 1 10 01 2 11 02 3 06 03 4 01 04 5 09 04 6 02 06 7 07 07 ECO s RECORD OF CHANGES PAGES AFFECTED ALL ALL 1 6 7 12 15 1 3 6 9 16 17 22 30 32 40 41 All Tech Dwgs 1 4 7 8 26 30 34 37 38 41 Several Tech Dwgs 3 4 7 10 20 25 27 29 31 33 37 38 39 Several Tech Dwgs ALL NOTES Initial Release Add DP9 Fast Draft speed Updated Add edge sensing Updated Updated Updated 1 0 2 0 3 0 DP8 amp DP9 Technical Manual Table of Contents DP8 amp DP9 DOCUMENT PRINTERS FUNCTIONAL SPECIFICATIONS INSTALLATION 2 1 INSTALLATION PROCEDURE 2 2 RESHIPMENT OPERATION 3 1 RIBBON CARTRIDGE LOADING 3 2 KEYPAD OP
28. ERATION 3 3 DISPLAY OPERATION 3 4 DOCUMENT INSERTION 3 5 CONFIGURATION 3 5 1 Printer Parameters 3 5 2 Communication Parameters 3 5 3 Override Parameters 3 5 4 Service Parameters 3 6 DIAGNOSTICS 3 6 1 Power Up Diagnostics 3 6 2 Enhanced Diagnostics 3 7 SELF TEST 3 8 LOCAL PRINTING 3 9 ERROR CONDITIONS 3 9 1 Document Jam 3 9 2 Cover Open 3 9 3 Page Overflow 3 9 4 Carriage Fault 3 9 5 Clear Eject Jam 3 9 6 Narrow Document 3 10 PROGRAMMING 3 10 1 Command Summary 3 10 2 Document Movement Commands 3 10 3 Print Commands 3 10 4 Low Density Graphics Commands 3 10 5 High Density Graphics Commands 3 10 6 Display Commands 3 10 7 Configuration Commands 3 10 8 Status and Keypad Commands 3 11 Drivers 3 11 1 Installing Craden Drivers on WINDOWS 95 OR 98 Installing Craden Drivers on WINDOWS NT 2000 OR XP Installing Craden USB Drivers on WINDOWS NT 2000 OR XP Using Printer Resident Device Fonts Writing to the Printer LCD Display 3 12 INTERFACING 3 12 1 Input Buffer Operation 3 12 2 Interface Protocols 3 12 3 Interface Signals amp Cables 3 13 PROBLEM SOLVING 3 13 1 No Display or Blocks Displayed 3 13 2 Unchangeable Configuration Parameters 3 13 3 No Document Motion 3 13 4 Carriage Fault or No Carriage Motion 3 13 5 No Printing or Light Printing 3 13 6 Ribbon Smear 3 1 3 1 3 1 3 1 X ZXSCACIA O N JJ O O O P BROW N cO cO O CO 4 0 5 0 3 13 7 Erratic Document Feed Mispositioning or Overprinting 3 13 8 Rollers
29. JECT to eject the document and CLEAR to clear the display 3 9 Error Conditions 3 9 1 Document Jam In the unlikely event that a document becomes jammed in the printer printing will stop and DOCUMENT JAM will be displayed The operator must clear the jam condition by moving the printhead left as far as possible and removing the document from the printer 3 9 2 Cover Open If the cabinet is opened to replace a ribbon cartridge or clear a document jam COVER OPEN is displayed and printing is disabled Printing will resume 3 seconds after the cabinet is closed 3 9 3 Page Overflow If the printer is commanded to move past the last printable line on a document it will eject the document and display PAGE OVERFLOW INSERT NEXT PAGE Printing will resume when another document is inserted 3 9 4 Carriage Fault The carriage could not move to the left margin and is probably caused by a jammed carriage or a bad left home sensor 3 9 5 Clear Eject Jam At power up or when an eject command is executed and all document sensors do not uncover CLEAR EJECT JAM will be displayed Assure no document is covering the sensors and the sensors are clean Turn power off before manually removing a jammed document If no document is in the printer this condition may be cleared by pressing the ENTER key while powering the printer on If the condition will not clear there may be a sensor failure 3 9 6 Narrow Document When a document less than 2 4 wide
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31. Run at Power Up or After Document Ejected 3 13 9 Erratic Character Spacing or Carriage Hitting End Stops 3 13 10 Interface Inoperative THEORY OF OPERATION 4 1 OVERVIEW 4 1 1 Carriage Drive Assembly 4 1 2 Document Drive Assembly 4 1 3 Switching Power Supply 4 1 4 Main Printed Circuit Board 4 1 5 Keypad Display Assembly 4 2 ELECTRONICS IN DETAIL 4 2 1 Low Voltage Supplies 4 2 2 Microprocessor System 4 2 3 Stepper Motor Drivers 4 2 4 Printhead Drivers 4 2 5 Keypad and Display 4 2 6 Sensors 4 2 7 Character Printing MAINTENANCE 5 1 LUBRICATION AND CLEANING 5 1 1 Lubrication 5 1 2 Document Feed Roller Cleaning 5 1 3 Sensor Cleaning 5 1 4 Printhead Cleaning 5 1 5 Document Print Area Cleaning 5 1 6 Cabinet Exterior Cleaning 5 2 SERVICE PARAMETER SET UP PROCEDURE 5 3 ELECTRICAL ADJUSTMENTS 5 4 MECHANICAL ADJUSTMENTS 5 4 1 Printhead Gap 5 4 1 1 Ribbon Shield Removal Replacement 5 4 1 1 1 Ribbon Shield Face Inspection 5 4 2 Carriage Drive Belt Tension 5 4 3 Document Drive Belt Tension 5 4 4 Carriage Shaft Cam and Shaft Rack 5 4 5 Rear Document Roller Spring Force 5 4 6 Auto Alignment Gate Ramp 5 4 7 Auto Alignment Gate Height 5 4 8 Front Document Roller Spring Force 5 4 9 Auto Alignment Skew Sensor Calibration 5 5 REPLACEMENT PROCEDURES 5 5 1 Cabinet 5 5 2 Main PCB 5 5 3 Sensor PCB 5 5 4 Keypad 5 5 5 Display 5 5 6 Power Supply PCB 5 5 7 Carriage Motor 5 5 8 Document Motor 5 5 9 Printhead 5 5 10 Carriage Drive Belt 5 5 11 Doc
32. Use a spring gauge to measure the force required to raise the right end of the rear upper roller very slightly It should measure 6 to 8 ounces 170 to 225 gm 2 If necessary adjust this force by loosening the roller spring cam screw on the right side plate and raising or lowering the cam 3 Repeat steps 2 amp 3 on the left end of the rear upper roller 5 4 6 Auto Alignment Gate Ramp The gate ramp is properly adjusted if the screws that mount the roller springs to the gate have about 0 02 0 5mm clearance to the bottom of the side plate slots when the gate arm is at rest against the left side plate stop Field adjustment is usually unnecessary If it is necessary 1 Insert a long 3 32 Allen wrench through the slot in the input tray and loosen the ramp adjustment screw The input tray may be removed by removing 3 screws from the baseplate if you are unable to locate the ramp screw through the input tray slot 2 Hold the ramp arm against the stop on the left side plate and move the ramp adjustment screw toward the left until the gate just begins to rise Tighten the screw in this position Ramp Arm Ramp Ramp Adjustment Screw 4 V Move ramp this way to Move ramp this way to raise gate lower gate d i View Ramp arm from front of printer with input tray removed 5 4 7 Auto Alignment Gate Height The gate ramp must be properly adjusted see 5 4 6 before gate height is adjusted 1 Raise the gate by pressing 9
33. and remove the ribbon cartridge Hold the ribbon shield at its corners between the shield face and shield base Raise the ribbon guide plate and push the shield down and slide it to the right side to remove it See picture in 5 4 1 Remove the printhead attachment screw See picture in 5 1 4 Disconnect the printhead from the printhead flex cables Connect the new printhead to the flex cables and remount it Insure that the flex cables don t touch the carriage belt drive pulley or idler pulley bracket when the carriage approaches the left and right box flanges If possible reset the printhead gap see 5 4 1 Replace the ribbon shield and cartridge For DP8 s only run 9 4 FUNCT If the PRINTHEAD TYPE parameter appears after CQ DARKNESS set it to match the printhead body color A BLACK head can be damaged if set to SILVER 10 Adjust LEFT OFFSET NORMAL and CQ DARKNESS see 5 2 5 5 10 Carriage Drive Belt 1 2 3 Loosen the screw fastening the belt clamp to the carriage and remove the belt clamp Remove the screw fastening the carriage belt idler pulley to the right box flange The belt and idler pulley are replaced as an assembly Install the new belt and clamp it to the carriage 4 Tension the carriage belt see 5 4 2 5 Setthe LEFT OFFSET LEFT MARGIN and CAR ALIGN parameters see 5 2 5 5 11 Document Drive Belt 1 Loosen the document motor mounting screws and push the motor toward the drive rolle
34. argin is set to 0 2 for the fonts and display to read correctly 3 11 5 Writing to the Printer LCD Display 3 12 The driver includes 4 pseudo fonts that write to the printer LCD display rather than print The action that selects one of these fonts must be immediately followed by EXACTLY 16 characters to be displayed without any intervening page positioning commands All data following the 16 characters will be printed in the font that was selected before the pseudo font selection FONTTEST DOC on the driver disk includes display writes using all 4 pseudo fonts Pseudo fonts LCD TOP DLY and LCD BOT DLY write to the top and bottom display lines only after all previous data has printed Pseudo fonts LCD TOP IMM and LCD BOT IMM write to the top and bottom display lines as soon as they are sent to the printer even if all previous data has not yet printed Standard Craden display commands ESC BEL ESC FS ESC DC3 and ESC GS can still be used by applications able to write control characters to the printer Interfacing The standard interface provides RS 232 communications at 1200 2400 4800 9600 19200 or 38400 baud and has an 11 Kbyte input buffer Characters may contain 7 or 8 data bits even odd or no parity and 1 stop bit These parameters are all keypad programmable by 9 3 FUNCT 3 12 1 Input Buffer Operation All data received except immediate status display and reset commands are placed in an 11 Kbyte first in first out buffer Chara
35. assbooks and may degrade DP8 print quality in the rightmost printable column Select Y for reduced noise on thin documents Select N for darker print on thick documents Select insertion to the TOP EDGE or BOTTOM EDGE of the document Select automatic insertion 0 1 or 2 seconds after placing a document in the input tray or delay insertion until AT is pressed to allow more time for aligning documents Select to begin printing IMMEDIATELY after the document insertion or delay printing until ENTER is pressed to verify proper alignment Select the distance between 0 80 and 0 80 from the document top edge to the center of the first print line Select 0 25 unless needing software compatibility with another printer Select CORRECT SKEW to automatically align skewed documents DETECT SKEW to detect but not align skewed documents or IGNORE to disable both skew detection and correction Select the maximum skew per 4 inches of document width Treatment of documents with excess skew is set by the next parameter If a document has excess skew ENTER EJECT KEYS will continue printing if ENTER is pressed or eject the document if EJECT is pressed AUTOMATIC EJECT will always eject a document with excess skew NOTE Many Printer Parameters may be host configured with the HT or other commands This allows for dynamic reconfiguration on a document by document or line by line basis 3 5 2 Communication Parameters Press 9 3 FUNCT to
36. bles 4 Clean the tip of the printhead nose where the printwires extend from the printhead with an alcohol wetted napkin Remove all ink and bits of ribbon fabric lint 5 Use the blunt end of a printhead cleaning brush to remove the bulk of the grease packed around the printwires Then wet the brush end with alcohol to remove the rest of the grease from the printwires Wipe the grease ink and ribbon fabric lint from the brush onto the napkin provided Remove all residual alcohol 6 Reconnect the printhead to the flex cables and remount the printhead Insure that the flex cables don t touch the carriage belt drive pulley or idler pulley bracket when the carriage approaches the left and right box flanges 7 Reinstall the ribbon cartridge Perform a test print Printhead attachment screw 5 1 5 Document Print Area Cleaning Accumulated paper dust should occasionally be removed from the platen printhead carriage shaft feed rollers document sensors and other document path areas with brush vacuum or compressed air 5 1 6 Cabinet Exterior Cleaning The cabinet can be cleaned with a damp cloth and a mild liquid soap or detergent Do not use harsh abrasive cleaners 28 5 2 SERVICE PARAMETER SET UP PROCEDURE 5 3 It may be necessary to change service parameters that compensate for certain mechanical tolerances These parameters are listed on a label inside the printer and may be changed if necessary by 94 FUNCT see 3 5
37. bon replacements Below is a guide to assist in ribbon shield inspection New ribbon shield Face is smooth no defects Ribbon shield at end of life Face is scored There is no visible damage to the six sided opening but a breech is imminent This shield may begin to snag documents Damaged ribbon shield There is a breech in the six sided opening This ribbon shield will streak and tear documents Damaged ribbon shield One side of the six sided opening is missing This ribbon shield will streak and tear every document and may scratch the platen The angle between the face and base back of the ribbon shield must be perpendicular Ribbon shields are made of thin stainless steel and if bent can cause poor print quality or snag the ribbon fabric 5 4 2 Carriage Drive Belt Tension The carriage belt connects the carriage drive motor to the carriage Incorrect carriage belt tension can cause uneven character width and spacing poor bi directional print alignment stalling and premature belt wear Tension is adjusted with the screw fastening the carriage belt idler pulley bracket to the right box flange 1 Loosen the adjustment screw until the upper belt run can be pushed down against the lower belt run at the center of the printer with about 1 Ib 400g of force 2 a Procedure for firmware EO and earlier see 3 7 Use 955 FUNCT to print 4 lines of H s Increase the belt tension by turning the adjustment screw 1 2 turn clockwise
38. cabinet up and back A Remove foam shipping blocks Rotate lift ring forward to lift and lock carriage RUBBER WHEEL RIBBON PATH x RIBBON TABS SHIELD Push ribbon guide plate tabs down Slip ribbon over and behind Rotate cartridge into place and snap in guide plate tabs Rotate cartridge drive gear clockwise to align and take up ribbon slack Push shield up Lower carriage into operating position Close cabinet 2 2 Reshipment 3 0 3 1 If possible retain the original packing material for reshipment If the original packing material is not used insure that printer and the printer carriage will not move during shipment and that the unit has sufficient protective padding Operation Ribbon Cartridge Loading Generic ribbons may cause printer malfunctions including ribbon stalling poor print quality smearing and printhead failures Please use Craden ribbons or carefully qualify generic ribbons To replace a ribbon cartridge do the following and refer to the drawings on page 2 and above 1 a N Depress the cabinet latches on the lower front cabinet sides and rotate the cabinet upwards Pull the lift ring on the right side of the printer forward to lift and lock the carriage Push down the ribbon guide tabs on each side of the printhead to lower the ribbon shield Remove the old cartridge by pulling down on the top and rotate the top edge forward Guide the new ribbon behi
39. communication with the USB interface by any program or driver capable of driving a COM port This port number may be changed to any other unused COM port if desired Click OK OK and close all open Control Panel windows To use the Craden Printer Driver install it now per the preceding installation section and connect it to the COM port selected in step 7 Using Printer Resident Device Fonts Printer resident device fonts should be used whenever possible because they print faster than TrueType fonts that Windows prints as raster graphics Device fonts include letter quality Courier 10 and 12cpi lower quality but faster printing Courier 5 6 17 20cpi NLQII 10cpi and 12cpi and lowest quality fastest printing draft 10 and 12cpi Draft should not be used on p assbooks 17 18 These fonts can be selected like any other font after loading the driver and selecting the printer as the default printer They will print and display correctly in WYSIWIG programs like MS Word only if a font size is selected that displays characters at their correct spacing A font size selection that displays characters at a smaller spacing will print slowly as the printhead repositions to print each character closer than its nominal spacing MS Word curiously decreases character spacing as larger font sizes are selected FONTTEST DOC on the driver disk can be opened in MS Word or Wordpad and printed to demonstrate the resident fonts Insure that the left m
40. cters with parity errors are replaced by a and framing errors are replaced by a The buffer may be used to receive all commands for printing an entire document This reduces host attention to the printer but caution must be used to determine correct recovery from document jams and operator intervention during printing If a document jams in the printer printing stops and DOCUMENT JAM is displayed The next status word transmitted will have the document jam bit set Once notified the host may write recovery instructions to the display If the transaction is to be restarted previously transmitted data can be destroyed by transmitting a DC4 in mode C or a CAN in mode I The host should request status and check the document jam bit in the status word before re transmitting data The operator may also destroy the buffer contents by pressing CLEAR after removing the document and moving the printhead to the left wall The host must then be notified by the operator that the transaction data may be re transmitted 3 12 2 Interface Protocols Either DTR or XON XOF protocols may be selected from the keypad In these modes the DTR signal will go false or a DC3 Xmit off will be transmitted if less than 1000 characters of space are available in the buffer when a CR or document movement command is received Transmission from the host must then pause DTR will later go true or a DC1 Xmit on will be transmitted when space becomes available and h
41. d 21 22 4 1 4 Main Printed Circuit Board The Main PCB is located in the rear of the printer and contains power supply control and driver electronics The regulated 38VDC is converted to 5VDC 12VDC and 12VDC by a switching regulator on the main PCB The 38VDC drives the printhead and stepper motors The control electronics are based on a 68HC12 microcontroller a 128 Kbyte flash memory and 32Kbyte RAM The microcontroller contains a 16 bit microprocessor non volatile EEPROM timers serial UO communication ports and baud rate generator multiple parallel ports and an A D converter driven by the optical sensors The main PCB also contains circuitry for interfacing to the keyboard display assembly driving the printhead and stepper motors and providing signal level conversion for the serial interface signals The driver electronics include switching transistors that drive the printhead and 4 H Bridge switching regulators that drive the carriage and document drive stepper motors An optical sensor mounted on the main PCB detects opening of the cabinet 4 1 5 Keypad Display Assembly The keyboard display assembly consists of a 16 key keypad arranged in a 8 x 2 scanning matrix and a 2 line by 16 character dot matrix LCD display module The display buffers 32 characters of data and generates the dot patterns and timing to drive the LCD 4 2 ELECTRONICS IN DETAIL Refer to 72135 Schematic 4 2 1 Low Voltage Supplies The 38VDC supplied
42. display the following Communication Parameters or press 9 0 0 FUNCT to print them on a previously inserted document Changes may be made as described in 3 5 Default settings are indicated in bold DISPLAY REMARKS PROTOCOL DTR Select the protocol to match your system configuration See XON XOF or PARALLEL 3 11 2 Select PARALLEL if the parallel interface option is INTRF installed and skip the next four items BAUD RATE XXXX Select 1200 2400 4800 9600 19200 or 38400 baud WORD LENGTH 7 or 8 Select 7 or 8 bits word PARITY XXXX Select EVEN ODD or NO parity bit STOP BITS 1 or 2 Select 1 or 2 stop bits INPUT BUFFER SINGLE Select a SINGLE LINE or a MULTIPLE LINE buffer of LINE or MULTIPLE LINE 11Kbytes EMULATION MODE C Select C to enable commands used with previous versions of EF4565 or EF4600 EFP95 this printer Other selections enable commands compatible with EF emulationon DP9 only popular PC based financial printers AUTO CARRIAGE RETURN Select Y unless compatibility with software written for another ON FEED Y or N printer is needed DUAL PORT Yor N DP9 Only Select Y unless software cannot accept ports alternating between enabled and disabled If N is selected connect to either port but not both PAPER OUT NO DOC or Select NO DOC for the parallel interface to indicate paper empty NEVER whenever no document is in the printer or NEVER to never indicate paper empty SELECT DOC PRES or Select DOC PRES
43. drive belt and fasten with the 3 screws Connect the motor to J5 on the Main PCB and replace the cabinet Set the LEFT HOME LEFT MARGIN and CAR ALIGN parameters see 5 2 Tension the carriage belt see 5 4 2 5 5 8 Document Motor N Wu Remove the cabinet see 5 5 1 Disconnect the motor from J2 on the Main PCB Loosen the 1 16 Allen screw that fastens the document drive pulley to the motor shaft Remove the motor mounting screws Remove the drive pulley through the motor clearance hole in the right box wall and remove the motor from the side plate Install the new motor leads exiting from the bottom through the side plate and onto the drive pulley and belt It is easiest to replace the motor mounting screws by holding them with pliers between the side plate and box wall and then fastening them with a screwdriver inserted through holes in the box wall 6 Locate the drive pulley so it is in line with the driven pulley and fasten it to the motor shaft 7 8 Connect the motor to J2 on the Main PCB and replace the cabinet Tension the belt see 5 4 3 5 5 9 Printhead 1 O O1 N ON If a black bodied printhead is to be installed in a DP8 run 9 0 FUNCT to display the firmware revision which MUST be C1 or greater A DP8 with A or B series firmware MUST be upgraded to at least C1 before a black bodied printhead can be used Open the cabinet raise the carriage with the lift ring
44. e foam packing blocks from both sides of the carriage 2 Press ENTER if configured for PRINT AFTER ENTER KEY see 3 5 1 3 13 5 No Printing or Light Printing If no print noise occurs when the carriage traverses a document check that the printhead is plugged into the carriage flex cable If printhead noise is present but no or light printing occurs 1 Correctly install the ribbon cartridge see 3 1 2 Remove the cartridge and check for jammed ribbon 3 Check that the cartridge knob rotates as the carriage traverses 4 Check that QUIET MODE is off see 3 5 1 3 13 6 Ribbon Smear If there is ribbon smear on the document and it is not very wrinkled 1 Check for too thick a document or printing too close to a fold or edge see 1 2 2 Check for a displaced or missing ribbon shield 3 Ribbon life may be increased by reducing the print darkness see 3 5 4 4 A generic ribbon is being used Change to a Craden ribbon 3 13 7 Erratic Document Feed Mispositioning or Overprinting If feeding is erratic or preprinted forms are not correctly positioned 1 Check for correct LINES INCH see 3 5 1 2 Check that LINE 1 is NOT set to a negative number see 3 5 1 3 Check that all service parameters are correctly set see 3 5 4 3 13 8 Rollers Run at Power Up or After Document Ejected If the feed rollers continue to rotate when power is turned on or after a document is ejected blow the document sensors near the left end of th
45. e front rollers free of dust and debris 3 13 9 Erratic Character Spacing or Carriage Hitting End Stops If horizontal character spacing is erratic or forms are not correctly printed 1 Check for correct CHARACTERS INCH settings see 3 5 1 2 Check that the ribbon cartridge is seated 3 Check that all service parameters are correctly set see 3 5 4 4 Ifthe carriage shaft has any residue build up clean it with a soft dry cloth 5 With power off check that the carriage moves freely by hand 3 13 10 Interface Inoperative If the printer works in self test but won t run from the interface 1 Check for firm mounting of the interface cable to the rear panel 2 Check for communication parameters set identically to the host system 3 Check for correct interface wiring see 3 11 3 4 0 THEORY OF OPERATION 4 1 OVERVIEW The DP8 and DP9 Printers handle a large variety of documents The two printers are identical except that the DP9 is 3 2 wider The mechanism consists of a printhead a carriage drive assembly and a document drive assembly The electronics consist of a switching power supply a Main PCB a sensor PCB and a keypad display assembly 4 1 1 Carriage Drive Assembly The carriage drive assembly positions the printhead as it prints each line of characters The printhead is mounted on a moveable carriage that is supported by a carriage shaft The carriage shaft is mounted to two pivot arms that allow the carriage to lift
46. e shaft height so that the gap wheel rises very slightly when the carriage moves onto the right platen end Light printing can occur if the carriage shaft is too high Document snagging or irregular movement of wide documents can occur if the shaft is too low 1 Move the carriage to the printer center and raise the carriage while holding the box down 2 If both carriage shaft ends don t touch the top of the slots in the box flanges reposition the shaft by pushing the higher shaft end down while raising the lower shaft end 3 Check that the rubber wheel is in firm contact with the platen when the carriage is at the left and right platen ends 4 Check that the carriage rises about 0 010 0 25mm as the carriage moves from its rightmost position onto the right platen end 5 If this does not occur loosen the shaft cam screw on the right box flange and rotate the cam Hold the cam with a small screwdriver blade in the rectangular slot when tightening the screw to stop the cam from rotating 6 Do a test print to insure that print darkness does not vary between the left and right sides 5 4 5 Rear Document Roller Spring Force The rear document roller springs are formed wires that pull the rear upper document rollers against the lower rollers The springs are adjusted by raising or lowering the cams mounted on the front screws fastening the side plates to the platen Incorrect spring force can cause document skewing slipping or stalling 1
47. each n being a single binary coded byte and terminating with a 0 byte ESC B 0 clears all vertical tabs clears all vertical tabs and sets horizontal tabs to default values of column 9 and every eighth column to the right If any document movement command BS LF VT FF ESC n ESC 4 ESC J n or ESC has been preceded by any printable ASCII characters they will be printed before the movement command is executed 3 10 3 Print Commands Commands common to both C and modes CR SO ESC STX ESC E ESC F ESC G ESCH ESC In ESC S 1 ESC T ESC Wn prints all preceding printable ASCII characters There is no document feed due to the CR unless auto LF has been set by a ESC 5 01 command and then a LF will be performed starts double width print All characters received after an SO and before a SI CR DC4 CAN ESC W or feed command will be printed double width Starts landscape sideways print for documents inserted rotated 90 clockwise Documents must be fed to the first printable column and 10 or 12 cpi selected before ESC STX is issued Following the STX is a single byte specifying the document height in tenths of an inch Printing will begin 0 25 inch below that document height unless optional LF or ESC J feeds follow the document height byte Following the optional feeds are rows of printable characters each terminated by a LF or ESC J The last printable row must be terminated by an ETX 03 hex No commands other than LF o
48. ed as one 24 dot vertical stroke where the first byte s high order bit is the highest and the third byte s low order bit is the lowest of the 24 vertical dots printed 3 10 6 Display Commands These C mode commands may be used in mode by preceding them with an ESC BEL immediately displays the following 16 characters on the upper line of the alphanumeric display The characters must not be control characters and there must be exactly 16 displayable characters FS loads the lower display line just like BEL loads the upper line DC3 or ETB operate identically to a BEL command but all previously received print and document movement commands are executed before the upper line of the display is loaded GS loads the lower display line just like DC3 loads the upper line 3 10 7 Configuration Commands HT changes the machine configuration and must be followed by 2 characters of the form 01PVHFCS and 01LEIBDQ where Permanent configuration change Change just for one document 5 lines inch vertical spacing 6 lines inch vertical spacing 12 characters inch horizontal spacing if S 0 10 characters inch horizontal spacing if S 0 ot used set to 0 Correspondence quality print if S 0 and D 0 Normal print if D 0 17 characters inch horizontal spacing Horizontal spacing determined by H bit Lock keypad from modifying set up parameters Unlock keypad for modifying set up parameters Document present set by ENTER key after insertion Docum
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50. ent present set automatically after insertion Insertion initiated by DOWN key Start insert _ seconds after document sensed in tray Insertion to bottom edge Insertion to top edge Fast Draft printing Print speed determined by C bit Quieter print on thin documents Darker print on thick documents Ke II 09 on Rp II II II r II UJ II I dee AR Oa ee ae ee ee eem o U I All parameters configurable by an HT are also programmable from the keypad See 3 5 1 The HT command is unique to C mode 3 10 8 Status and Keypad Commands Status key buffer contents line count or document length data are transmitted when requested by the host These C mode commands except for document length and line count requests may be used in mode by preceding them with an ESC ENQ requests printer status and is executed when it is received SUB also requests printer status but it is only executed after all previously received commands have been executed SUB may be used to interrupt the host and notify it that the printer is now idle Printer status is a single byte that is bit significant as follows DP XE DJ KB BZ BA 0 1 DP XE DJ KB BZ BA Document present Set whenever a document is in the feed path Transmission error The character associated with the error will be printed as a for parity errors or a for framing errors Document jam The printhead has not returned to the document
51. gt O 0 1 0 0 0 1 0 0 ooooaaa A Current 100 Forward 100 Forward 100 Forward 0 Reverse 100 Reverse 100 Reverse 100 Reverse 096 Forward B Current 10096 Forward 0 Reverse 100 Reverse 100 Reverse 100 Reverse 0 Forward 100 Forward 100 Forward 23 5 5 mSec 5v u Ov 0 4v R4 INN W it co 38V u INN M 38v 12 3 gy Fig 4 1 Stepper Motor Drive Circuit 4 2 4 Printhead Drivers During printing 24 bits of print dot data are serially shifted into U3 to U5 A FIRE pulse at U5 pin 12 then transfers the 24 bits to the U3 to U5 outputs Each high bit turns on a printwire by turning on power MOSFETS Q10 to 33 Timer U13 applies 38VDC to the other side of all printwire coils via Q5 and power MOSFET Q7 After about 100 usec the NO CHOP signal at D35 cathode goes high and timer U13 pin 3 begins to oscillate as an open loop switching regulator to keep the current level in the printhead coils relatively constant 100 to 200 usec later the FIRE signal at D34 anode goes high which turns off U13 and Q7 On pre revision F boards FIRE also cleared the printwire bits from U3 to U5 turning off all transistors and discharging the coil current through D6 the coils and diodes D7 to 30 The FIRE EXT signal at the base of Q4 enabled a discharge path through Q8 back to 38VDC for about 40 usec Then Q8 turned off and the remaining coil current dissipated through Q10 to 33
52. he plate Decrease the gap by pushing the printhead down against the feeler Increase the gap by rotating a screwdriver blade in the slot between the gap plate and the printhead Insure that the gap plate is centered around the printhead nose and tighten the screws Recheck the gap per step 4 Replace the ribbon shield by raising the carriage sliding the shield from the side between the carriage and the ribbon guide plate until the shield slot is centered Gently push the shield up until it snaps into place Mount the ribbon and use 95 FUNCT to print See 3 8 and check print quality Adjust the NORMAL and CQ DARKNESS parameters see 5 2 Insert the feeler gauge from the side of the printhead Be sure the feeler gauge passes under the printwires only Front roller and input guide removed for clarity 5 4 1 1 Ribbon Shield Removal Replacement The ribbon shield prevents ribbon fabric from rubbing on and smearing printed media It is a consumable Replace the shield every four to five ribbon replacements or when it is damaged j A IE 31 32 5 4 1 1 1 Ribbon Shield Face Inspection A high percentage of printers sent to Craden for repair has a ribbon shield that has reached end of life and is the primary cause of the printer s problem Document jams damaged documents streaking poor print quality and document skewing can often be alleviated by replacing ribbon shields after four to five rib
53. hes as follows 10 cpi if m 90 12 cpi if m 78 17 cpi if m 54 followed by 01 00 n hex sets print quality to draft if O lt n lt 64 to normal if 63 n 128 to CQ if 127 n 255 or to default if n 255 No change occurs if n 0 Draft should not be used on passbooks DP8 draft print quality may be degraded in the rightmost column column 56 10 cpi or column 67 12 cpi followed by mn moves the next print position right by 256 X n m 120 Commands unique to C mode SI ESC SO ESC SI RSn US DC4 ESC stops double width character print starts double height print All characters received before an ESC SI CR or feed command will be printed double height Single height characters will be printed in line with the top of double height characters if they are mixed in a print line stops double height print inserts n blank spaces into the print line and can be used to reduce the characters transmitted when large blank spaces are to be printed n is of the form O1NNNNNN where NNNNNN is the number of blanks to be inserted enables or disables underscoring of printable characters All characters received after a US and before another US CR or feed command will be underscored clears all previously received data out of the buffer clears all previously received data and switches the interface to Mode Commands unique to mode BS HT SI DC2 DC4 CAN ESC ESC D ESC R ESC n prints all preceding
54. is inserted the middle sensor does not see it NARROW DOCUMENT is displayed Press ENTER to proceed or EJECT to abort 3 10 Programming CAUTION DURING PROGRAM DEVELOPMENT ALL PRINTING SHOULD BE DONE ON SINGLE SHEET PAPER UNTIL PRINT IS CORRECTLY FORMATTED PRINTING ACROSS THICK FOLDS AND DOCUMENT EDGES CAN DAMAGE THE PRINTHEAD Two separate command sets C and are selectable either from the keypad using 9 3 FUNCT see 3 5 2 or the interface Mode C is compatible with previous versions of this printer while mode is compatible with popular PC based printers Many commands are identical in both C and modes Unique mode C commands are indicated by C and unique mode commands are indicated by l in the command summary table Mode C keypad display and status and key buffer request commands can still be accessed in Mode by preceding the Mode C command with a ESC character A Windows printer driver for an IBM Proprinter X24 may be used but the Craden driver is preferred as it defines common transaction document widths provides faster throughput in landscape mode and facilitates writing messages to the display 3 10 1 Command Summary ASCII Hex Command ENQ 05 Status request use ESC ENQ in mode BEL 07 Load upper display immediate use ESC BEL in mode l BS 08 Reverse line feed C or Backspace one character I HTn 09 Configuration download C or Horizontal Tab I LF 0A Line feed VTn 0B Vertical feed C or Vertical Tab
55. justs the uppermost print line location Smaller values print closer to the top edge Adjusts the carriage home location during document insertion Larger values move the carriage to the left Adjusts the first column print position if edge sensing is not installed EDGE SENSOR parameter will not appear below Larger values move printing to the right Aligns lines printed right to left with lines printed left to right Larger values move right to left printed lines to the left Adjusts distances moved down the document Larger values increase the distance moved Adjusts distances moved up the document Larger values increase the distance moved Adjusts how much of the document is held in the feed rollers after it is ejected Lower values hold less of the document Selects custom options Select 00 unless indicated otherwise on the configuration label or incorrect operation may occur Sets the height of the alignment gate Larger values raise the gate higher Adjusts the first column print position from the left paper edge Larger values move printing to the right Adjusts darkness at normal print speed Lower values reduce darkness and increase ribbon life Select the lowest value that provides suitable legibility on thick forms Adjusts CQ print darkness Only displayed in early version DP8 s with later firmware installed Set to match the printhead body color Warning A BLACK head can be damaged if set to SILVER Diagn
56. kew sensors C is the cabinet open sensor and E is the document edge sensor The cabinet open sensor is mounted on the main PCB and looks through a slot in the rear panel heat sink The document edge sensor is mounted on the carriage and looks down toward the platen All other sensors are mounted on the multi sensor PCB See picture in 5 1 3 Any sensor that is covered will have its corresponding indicator erased Each sensor may be activated to check for proper operation Press AT to conclude this test Place an object in any sensor s light path to remove the corresponding sensor letter from the display Press ENTER to return to READY status Symptom Condition Remedy Rollers run continuously before a Front sensor light path is blocked Clear front sensor light path of document is inserted and no F by paper paper dust or a bent paper scraps or blow sensor area on display during 90 FUNCT input guide A sensor may be bent with compressed air out of position Rollers run continuously after a Back sensor light path is blocked Clear back sensor light path of document is ejected and no B on by paper paper dust or a bent paper scraps or blow sensor area display during 90 FUNCT input guide Sensor may be bent with compressed air out of position Carriage drives into the left side of 94 FUNCT parameters are Check 94 FUNCT parameters the printer incorrect against label under the cabinet behind the alphanumeric displa
57. lowing graphic data bytes is m 256 X n The maximum data count is 336 for ESC K 672 for ESC L or ESC Y and 1344 for ESC Z The high order bit of each graphics data byte is the highest and the low order bit is the lowest of 8 vertical dots printed in a single dot column Each bit must be set to a 1 for the corresponding dot to be printed Low density graphics may also be printed in C mode only at 60 or 120 dots inch dpi horizontally by 72 or 144 dpi vertically ESC A must precede each line of 60 dpi data with a maximum of 336 data bytes ESC B must precede each line of 120 dpi data with a maximum of 672 bytes Each line of data must be terminated by a feed command usually a VT e Each data byte is of the form 1ABCDEF where A is the lowest and F is the highest of 6 vertical dots printed in a single dot column Each bit must be set to a 1 for the corresponding dot to be printed 3 10 5 High Density Graphics Commands High density 24 dot graphics are selected by ESC g m n P where m 256 X n is the following graphics data byte count plus one and P selects graphics densities as follows P value 0 1 2 8 9 10 or 11 12 Density 60x72 120x72 120x72 60x180 120x180 180x180 360x180 P 0 1 and 2 are equivalent to low density ESC K L and Y commands P 10 prints at high speed but adjacent horizontal dots are prohibited P 11 prints slower without this restriction In the 180 dpi vertical modes each group of 3 following graphics data bytes will be print
58. mized to satisfy varied applications and user preferences See the Printer Parameters in 3 5 1 If auto alignment is enabled gently insert the document upper left corner toward the point where the left edge guide and the feed rollers meet Release the document when the rollers grip it and it will be automatically aligned and inserted to the first print line Auto alignment may be disabled for an individual document by pressing the FUNCT key before insertion or for all documents by changing the SKEW CORRECT printer parameter When auto alignment is disabled the left document edge should be aligned to the left edge guide and then slid forward into the feed rollers which will insert it to the first print line The PAUSE printer parameter may be set to delay when the rollers activate for a few seconds or until the AT key is pressed This allows more time to insert cumbersome documents or to train new users With auto alignment enabled the printer should be configured for no delay The DOCUMENT INSERT printer parameter may be set to move the document to the last bottommost rather than the first printable line The BEGIN PRINTING printer parameter may be set to delay printing until ENTER is pressed This allows the operator to insure that the document has inserted correctly If not it may be EJECTed and reinserted 3 5 Configuration The printer may be configured from the keypad with all parameters saved in a non volatile memory There are 4 c
59. nd the rubber wheel and over ribbon guide tabs Insure the ribbon is not twisted Mount the new ribbon cartridge bottom edge first and rotate the top edge backwards Turn the cartridge knob clockwise if necessary to lock the cartridge in place 7 Turn the cartridge knob clockwise to remove the ribbon slack 8 Push the ribbon shield up and the lift ring backward to lower the carriage Push down on the cartridge to insure that the carriage is fully seated Rotate the cabinet forward until the latches on both sides engage 3 2 Keypad Operation EJECT TA JB FUNCT CLEAR ENTER 0 to 9 ejects an inserted document if the print buffer is empty Should a document remain partially in the printer press eject again to fully eject paper If CLEAR EJECT JAM is displayed press the CLEAR key and EJECT again moves a document up 1 60 with each depression If held depressed the document will slowly move into the printer Also initiates document insertion if the printer is configured for key rather than automatic insertion See 3 5 1 moves a document down 1 60 with each depression If held depressed the document will slowly move out of the printer enters previously keyed digits as a function code All function codes beginning with 9 are reserved for internal printer operations All other function codes are transmitted to the host system and their usage is host defined If no digits have been entered FUNCT
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61. of printer is ON The input power cord is plugged into both printer and supply outlet The contrast knob to the left of the configuration label is set for good display contrast Input power is present on the input power cord The fuse on the Power Supply PCB is good The display cable is attached to the display and to the main PCB J11 38 VDC is present between main PCB J1 pins 1 and 5 If not check for AC line voltage at the Power Supply PCB input If AC is present but 38VDC is not replace the Power Supply If 38 VDC is present replace either the main PCB or the display module 5 6 3 Defective Keypad Ifkeypad depressions are not sensed proceed as follows 1 2 38 If a single key fails but all others are OK just that key may be replaced after the keypad is removed see 5 5 4 If a row or column of keys all fail a key may be permanently depressed or the problem is in the cable between the main PCB and the keypad or on the main PCB 5 6 4 Defective Sensor All sensors transmit infrared light and sense light reflected by a document gap roller or cabinet The sensors are automatically re calibrated each time the printer powers on First check that the flex cable is firmly seated in the connector on the Sensor PCB Press 9 0 FUNCT to run diagnostics and display SENSORS and the letters LFBMRCE L is the left home carriage sensor F and B are the front and back document sensors M and R are the middle and right s
62. onfiguration categories Configuration Category Press Printer Parameters 9 2 then FUNCT Communication Parameters 9 3 then FUNCT Override Parameters 9 9 then FUNCT Service Parameters 9 4 then FUNCT After accessing a category each parameter will be displayed Press AT to display the next choice for the parameter or press ENTER to display the next parameter If the display does not change when AT is pressed the keypad is locked See 3 5 3 to unlock the keypad 3 5 1 Printer Parameters Press 9 2 FUNCT to display the following parameters or press 9 0 0 FUNCT to print them on a previously inserted document Changes may be made as described above Before proceeding see 3 4 and select the insertion sequence which best fits your application Default settings are indicated in bold print DISPLAY LINES INCH 5 or 6 CHARS INCH 10 12 or 17 PRINT DRAFT NORMAL or CQ QUIET MODE Y or N DOCUMENT INSERT TOP or BOTTOM EDGE DOCUMENT INSERT WITH X SEC PAUSE or WITH AT KEY BEGIN PRINTING IMMEDIATELY or AFTER ENTER KEY LINE 1 XXX SKEW DETECTION CORRECT SKEW DETECT SKEW or IGNORE SKEW DETECTION ALLOWED 030 050 080 110 or 130 IF FORM SKEWED ENTER EJECT KEYS or AUTOMATIC EJECT REMARKS Select 5 or 6 lines per inch vertical spacing Select 10 12 or 17 characters per inch horizontal spacing Select faster DRAFT NORMAL or slower but higher quality CQ print DRAFT should not be used on p
63. or functions and exercise Yes Will the printer take a document when it is placed into the machine Yes Does the carriage move when printer should be printing Open cabinet and override cover open sensor using 99 FUNCT 3 5 3 Does the printer print Insert paper and press 900 FUNCT on the keypad 3 7 Yes No Is the printed output smearing Is the printed output too light Do the rollers run continuously even when paper is not in the printer Yes Is the printed output spaced correctly Yes Does the printer communicate with the system when you send a transaction Power switch is ON Power cord plugged in both ends Contrast knob adjusted 3 3 Power outlet is live Press EJECT amp CLEAR and try again Insert paper press AT key see printer parameter DOCUMENT INSERT 3 5 1 Check sensors 5 6 4 Carriage Fault on display Foam packing removed Insert paper press AT key see printer parameter BEGIN PRINTING 3 5 1 Ribbon correctly installed 2 1 Ribbon shield installed correctly 5 4 1 1 Remove ribbon check for jammed cartridge Check that ribbon knob turns as carriage moves Ribbon correctly installed Ribbon worn out 2 1 Ribbon shield installed correctly 5 4 1 1 Document too thick 1 2 Printing in non printable area of a document or passbook 1 2 Ribbon correctly installed Ribbon worn out 2 1 Remove ribbon check for jammed cartridge Ribbon
64. ost transmission may resume DTR is equivalent to most systems hardware protocol 3 12 3 Interface Signals amp Cables The interface provides for RS 232 communication All signals are available on a 9 pin male connector equivalent to Cinch DB 9P All connectors have 4 40 threaded inserts for positive mating Pin assignments are as follows Pin Signal Description 2 Transmit Data TD From printer transmits printer status 3 Receive Data RD To printer receives data amp commands 4 Request to Send RTS Connected to pin 6 for looping PC DTR to DSR 5 Signal Ground Attached to printer logic ground 6 Data Set Ready DSR Connected to pin 4 7 Clear To Send CTS To printer enables status transmissions 8 Data Terminal Ready DTR From printer indicates printer ready and buffer available if DTR protocol is selected The following cable connection will work correctly in most applications using PC type 25 or 9 pin serial ports shielded cable with ONLY one end of the shield connected to a metal connector cover or pin 1 of a 25 pin connector is recommended to increase immunity to static discharges and other electrical noise Printer Pin PC 25 Pin PC 9 Pin Signal 3 2 3 Data to Printer 2 3 2 Data from Printer 6 8 5 6 6 8 DTR to PC CTS amp DSR 5 7 5 Signal Ground Some applications do not allow DSR to be removed when the printer is busy Use the following cabling with such software Printer Pin PC 25 Pin PC 9 Pin Signal 3 2 3
65. ostics run automatically during power up If a fault is detected ROM or RAM TEST BAD may be displayed If a fault occurs press AT to advance to the next test However the printer should not be operated 3 6 2 Enhanced Diagnostics Diagnostics execute after pressing 9 0 FUNCT If no faults exist PROM REVISION XX ROM TEST OK and RAM TEST OK will display If a fault exists BAD will display until AT is pressed to advance to the next test Then SENSORS LFBMRCE will display L is the left home carriage sensor F and B are the front and back document sensors M and R are the middle and right skew sensors C is the cabinet open sensor and E is the document edge sensor Any sensor that is covered will have its corresponding indicator extinguished Each sensor may be activated to check for proper operation Both operator indicator lights will turn on DP9 Press AT to conclude this test 3 7 Self Test Insert paper and press 9 0 0 FUNCT to print model firmware ID and configuration settings 3 8 Local Printing To print several variable length lines without host commands Proceed as follows 1 Insert a form and then press 9 5 FUNCT 2 In response to CHAR LENGTH 30 key in a two digit number of characters per line and then press ENTER Do not print occur across a vertical fold or document edge 3 In response to LINE COUNT 01 key in a 2 digit number of lines 4 Each time ENTER is pressed that number of lines will be printed 5 Press E
66. r ESC J are allowed prior to the ETX No more than 24 lines each of no more than126 characters may be printed starts bold double strike print in 10 or 12 character inch stops bold print starts correspondence quality print stops correspondence quality print starts correspondence quality print if n 2 normal print if n O and draft if n 5 Draft should not be used on passbooks DP8 draft print quality may be degraded in the rightmost column column 56 10 cpi or column 67 12 cpi starts half high subscript print stops subscript print starts double width print if n 1 and stops it if n 0 ESC X mn sets left and right margins at columns m and n Printing begins at column m and ESC ESC ESC d ESC d must stop at column n The document may be no wider than n 5 10 in as the n value limits carriage motion This can increase throughput on narrow documents followed by 04 00 00 00 m n hex selects double high and wide print Double high print is set if the low order nibble of m is 2 and single high is set if it is 1 Double line feeding is set if the upper nibble of m is 2 and single line feeding is set if it is 1 Doublewide print is set if n is 2 and single wide is set if it is 1 followed by 02 00 m n hex selects print pitches as follows 10 cpi if m n 00 OB 12 cpi if m n 01 EB 17 cpi if m n 01 ED 20 cpi if m n 01 EE 24 cpi if mn 01 1E Followed by 08 00 xx xx 00 m 01 00 xx xx hex selects print pitc
67. r of additional 1 60 steps moved since the document was initially registered at top edge or bottom edge EM requests document length information Upon receipt 2 bytes representing the document length if the document was automatically inserted to the bottom edge are transmitted The first byte indicates the number of lines and the second byte indicates the number of additional 1 60 inch steps 3 11 Drivers CRADEN SUPPLIED DRIVERS ARE THE INTELLECTUAL PROPERTY OF CRADEN PERIPHERALS CORPORATION AND ARE PROTECTED BY COPYRIGHT LAW THEY MAY ONLY BE USED WITH A PRINTER MANUFACTURED BEFORE APRIL 2000 IF ALLOWED BY A LICENSE AGREEMENT BETWEEN CRADEN AND THE USER OR THE USER S SUPPLIER DUPLICATION OF ANY PART OF THE DRIVERS IS ILLEGAL UNLESS ALLOWED BY ALICENSE AGREEMENT WITH CRADEN 3 11 1 Installing Craden Drivers on WINDOWS 95 OR 98 If the printer is connecting via a USB interface first install the USB drivers O Om NN A Click START Settings Printers Double click Add Printer Select local unless the printer is not connected to this PC and click Next Click Have Disk In Copy manufacturer s files from box enter A w9x and click OK Select Craden DP8 or Craden DP9 and click Next Select the port where the printer is connected Click Configure Port and insure that configuration matches the printer s 9 3 FUNCT parameters Recommended port settings are 38400 baud 8 data bits no parity 1 stop bit and ha
68. ration and Configuration Press the cabinet latches on the lower front cabinet sides and rotate the cabinet upwards Remove the foam blocks on each side of the carriage Install the ribbon cartridge See 3 1 Connect the interface cable See 3 11 3 for cabling information O Om Go N Check that the power switch on the printer rear is off 0 side depressed Connect the line cord between the printer and an electrical outlet The printer accepts 110 to 240VAC nominal input If a line cord was not supplied with the printer procure an IEC HAR line cord that has an IEC 320 C13 style connector and the appropriate HAR plug for your country 7 Turn on the power switch READY should appear on the display If the display is not legible adjust the contrast knob located on top of the mechanism beneath the cabinet 8 Configure printer and interface parameters See 3 5 3 5 2 using 92 and 93 FUNCT Common variations to the default settings are a higher baud rate for better throughput EMULATION MODE for Proprinter emulation and PROTOCOL XON XOF for software that does not use DTR hardware handshaking Function 94 settings are factory set for a specific printer and should not be changed 9 Perform a local print test See 3 8 with 95 FUNCT 10 If host printing is incorrect check that 93 FUNCT Communication Parameters match the host parameters and review all 92 FUNCT Printer Parameters Push in on cabinet latches Rotate
69. rdware flow control Corresponding 9 3 FUNCT values are DTR 38400 8 NONE 1 MULT emulation and auto CR on feed Click Next Select Yes if you want the Craden printer to print all Windows output Click Next Insert a page at least 5 8 wide and 6 high in a DP8 or 8 5 x 11 in a DP9 Click Finish to install the driver and print a test page 3 11 2 Installing Craden Drivers on WINDOWS NT 2000 OR XP If the printer is connecting via a USB interface first install the USB drivers 1 2 O ON O Om CO Click START Settings Printers Double click Add Printer and click Next Select local or network printer local unless the printer is not connected to this PC and click Next Select the port where the printer is connected Click Next Click Have Disk In Copy manufacturer s files from box enter A wnt and click OK Select Craden DP8 or Craden DP9 and click Next Select Yes if you want the Craden printer to print all Windows output Click Next Select Shared if the printer is to be shared over your network Click Next Select No to not print a test page and click Finish to install the driver On Windows 2000 and XP a message warns that the files do not have a Microsoft digital signature All Craden specific files are data files that will be used by a standard Microsoft universal printer driver and will not affect system integrity Click Yes to continue loading 10 Insert an 8 5 by 11 page
70. rint pulse timing for two different printheads that have different drive characteristics Select AUTO DETECT unless serial number is below 81000 Then select BLACK or SILVER printhead body color A BLACK head can be damaged if set to SILVER ELECTRICAL ADJUSTMENTS There are no electrical adjustments required 29 30 5 4 MECHANICAL ADJUSTMENTS 5 4 1 Printhead Gap Too large a gap causes light print and missing dots Too small a gap causes ribbon smear 1 Open the cabinet raise the carriage with the lift ring and remove the ribbon cartridge 2 Hold the ribbon shield at its corners between the shield face and shield base Raise the ribbon guide plate and push the shield down and slide it to the right side to remove it Lower the carriage Insert a narrow 015 38 mm feeler gauge between the platen printing surface and printhead nose from the side of the printhead Insure that the feeler is flat against the platen and completely under the printwires not under the gap wheel or behind the printwires The 015 feeler should just fit without raising the printhead but a slight resistance should be felt as the feeler slides below the printwires If the gap is incorrect slightly loosen the two larger head screws on either side of the printhead that fasten the gap plate to the printhead Use a 5 16 wrench to hold the mounting nuts The gap changes as these screws are loosened so only loosen them enough to be able to move t
71. rs 2 Slide the belt off the rear roller pulley and remove the belt 3 Install the new belt through the motor clearance hole in the right box wall and re tension the belt see 5 4 3 37 5 6 TROUBLESHOOTING 5 6 1 Basic Troubleshooting Procedure This procedure exercises everything in the printer except the interface to the host system If any step is not successfully executed refer to the corresponding troubleshooting section 1 Turn on printer power A If nothing appears on the display see 5 6 2 B If lt gt BAD is displayed replace the indicated component on the main PCB or the complete main PCB C If CARRIAGE FAULT is displayed see 5 6 6 Press 12345678 and then CLEAR Each number should appear in the display and then all should disappear If this does not occur or if diagnostics don t begin to execute in the next step see 5 6 3 Execute 90 FUNCT diagnostics see 3 6 2 and exercise the 7 sensors If any sensor does not operate see 5 6 4 Execute Local Printing see 3 8 and use a 6 x 11 document A If a document will not load into the printer see 5 6 5 B Ifthe carriage will not move across the document see 5 6 6 C If no printing occurs see 5 6 7 D If print quality is not acceptable see 5 6 8 E For other possible problems see 5 6 9 through 5 6 12 5 6 2 No Display If nothing appears on the display on power up check that SOVOPOD 9 The power switch on rear
72. s be a little lighter than on a thin one If there is ribbon smear on the document and it is not very wrinkled 1 Check that document is not too thick or printing is too close to a fold or edge see 1 2 2 Check for a displaced or missing ribbon shield 3 Check printhead gap see 5 4 1 5 6 9 Missing Dots If a single row of dots is missing 1 Refer to the printwire pinouts on the main PCB schematic Pin 4 prints the uppermost dots of uppercase characters pins 20 through 23 print lower case descenders g j p q and y and pin 24 prints underscores Disconnect the flex cable from the main PCB and measure the resistance of the bad printwire through the cable It should be approximately 12 ohms for a silver body printhead and 6 ohms for a black body printhead If it is not remove the printhead from the carriage and measure resistance at the printhead If it is OK replace the flex cable If it is not replace the printhead 2 Repair or replace the main PCB with bad driver transistor Q11 through Q33 3 The printhead may be mechanically faulty with a bent or jammed wire Replace the printhead 5 6 10 Erratic Document Feed or Mispositioning If feeding is erratic or preprinted forms are not correctly positioned 1 Check for correct LINES INCH and LINE 1 see 3 5 1 2 Check that all service parameters are correctly set see 5 2 3 Check that the upper feed rollers move freely in the side plate slots 4 Check that all belt drive
73. same recommended spares except for the printhead cable keypad and carriage belt assys 010 to 018 feeler gauges and a 1 Ib or 500 gm Spring Gauge 6 scale calibrated in 1 100 3 16 and 1 4 nut driver 43 Printer Diagram Cabinet Latch L Display Contrast Adiust Configuration Label Carriage EE rw Carriage Multisensor PCB 2 Lifter Ring e Los Printhead Roller Input Guide Input Tray Document Edge Guide Serial Port A Power Switch Power Cord 44 PRINTER ASSY 73819 X CABINET ELECTROMECH SHIPPING KIT 73817 X 73816 X 73818 X MAIN PCB CARRIAGE DRIVE PRINTHEAD DOCUMENT DRIVE KEYPAD DISPLAY 72135 1 no USB 73806 X 73812 1 73810 X 73815 X 72135 2 w USB CARRIAGE BOX CARR IDLER LOWER DRIVE KEYPAD 73802 1 73804 X 73805 X 73809 X 72133 1 RIBBON GUIDE 73801 1 REVERSER GATE PLATEN 73803 1 73807 X 73808 X DP8 amp DP9 ASSEMBLY TREE DWG 75017 REV C All assemblies not ending in X are used both on DP8 and DP9 For all assemblies ending in X X 1 for DP8 and X 2 for DP9 45 NOLL COOC STVYH3HAIdH3d Nacdvuo RR A poema O ej pop EEN L ssv eje d pin uogqiy 6 8dQ Z Buueeg eBeue5 L SPIND Wd epino AIH 6884 L du age pe ululiq 6 84Q L aBewed 6 84Q 90 0 GO X SZ GHA de L 90 0 44 S00 PIE MWHN c JayseM SS 800 X ZZZ X ThE L Duude uoliss iduioo c uv L SWHS Ob v we 6u 6pa pepnux3 JHopue1S Wad uo
74. se the procedure in steps 2 to 4 Insure that the spacers remain on each mounting boss and that the 4 screws are tight Use the longer screw to fasten the transistor and finned heatsink 6 Reconfigure the new PCB with the FUNCT 92 and 93 parameters recorded in step 1 and the FUNCT 94 parameters listed on the configuration label 36 5 5 3 Sensor PCB NOOR 8 Turn off power and disconnect the flex cable from the sensor PCB Remove the two nuts fastening the PCB to the input guide Raise the upper front roller and remove the PCB by pushing it to the rear Install the lower thick sensor insulator the new PCB and the upper thin sensor insulator Push the PCB and insulators forward fasten the nuts and reconnect the flex cable Adjust TOP LEFT OFFSET LEFT MARGIN and EJECT HOLD parameters so that inserted documents are correctly positioned See 5 2 Record new values on the parameter label Calibrate the skew sensor See 5 4 9 5 5 4 Keypad T 2 3 4 5 Turn off power and remove the cabinet See 5 5 1 Place the mechanism upside down so it rests on the box and keypad bracket Remove the nuts fastening the keypad to the bracket Disconnect the flex cable and remove the keypad To install a new keypad reverse the procedure in steps 1 to 4 5 5 5 Display 1 2 3 4 5 Turn off power and remove the cabinet See 5 5 1 Place the mechanism upside down so it rests on the box and keypad bracke
75. t Remove the nuts fastening the display to the bracket Pull the flex cable connector cover away from the connector to disconnect the flex cable To install a new display reverse the procedure in steps 1 to 4 5 5 6 Power Supply PCB 1 Disconnect the AC power cord and remove the cabinet see 5 5 1 Occ N N Raise the insulator flap covering the Power Supply PCB and disconnect the AC and DC connectors from the PCB Remove the 4 screws fastening the PCB to the box and remove the PCB Position the mechanism so that it rests on the keypad bracket and input tray Put the screws into the new PCB Insure that the insulator stays located around each mounting boss while mounting the new PCB and fasten the screws Reconnect the AC and DC connectors the AC connector mounts to the end of the header labeled L on the PCB Insure that the insulator flap separates the power supply from the flex cables 5 5 7 Carriage Motor 1 2 3 COND O1 Remove the cabinet see 5 5 1 Disconnect the carriage motor from J5 of the Main PCB Remove 3 screws from the motor shaft side that fasten it to the box Guide the carriage belt off the motor pulley do not loosen the belt tensioner or you will have to readjust it and remove the motor Transfer the motor pulley to the new motor Leave a 01 0 2mm gap between the pulley hub and the motor flange Install the new motor in the box onto the carriage
76. t forms Ribbon needs replacement Ribbon installed incorrectly Increase print darkness setting Replace ribbon cartridge See page 5 for ribbon installation See DARKNESS service parameters 3 5 4 Streaking or smearing over printed lines Ribbon installed incorrectly Ribbon shield is missing damaged Ribbon is near end of life Ribbon has too much ink Generic ribbon installed See page 3 for ribbon installation Replace ribbon shield Replace ribbon cartridge Replace with Craden ribbon Large gaps in printing or sporadic light print occurs Ribbon fabric is folded or twisted Ribbon installed incorrectly Generic ribbon installed Replace ribbon cartridge See page 3 for ribbon installation Replace with Craden ribbon A row of dots is missing Printhead or printing circuit is defective unusual If unusable initiate a service call Print is darker on one side than on the other Racked carriage shaft or misadjusted shaft cam If unusable initiate a service call Ribbon getting tangled in printer Ribbon installed incorrectly Ribbon shield is damaged Generic ribbon installed See page 3 for ribbon installation Replace ribbon shield Replace with Craden ribbon Documents being torn Ribbon shield is damaged Replace ribbon shield If print is light all across the print line check as if printhead noise were present in 5 6 7 Print on a thick document will alway
77. ument Drive Belt 5 6 6 0 TROUBLESHOOTING 5 7 5 8 5 6 1 Basic Troubleshooting Procedure 5 6 2 No Display 5 6 3 Defective Keypad 5 6 4 Defective Sensor 5 6 5 No Document Motion 5 6 6 No Carriage Motion 5 6 7 No Print or Light Print 5 6 8 Print Quality 5 6 9 Missing Dots 5 6 10 Erratic Document Feed or Mispositioning 5 6 11 Erratic Character Spacing or False Document Jams 5 6 12 Interface Inoperative 5 6 13 Diagnostic Flowchart RECOMMENDED SPARE PARTS RECOMMENDED SERVICE TOOLS MAJOR ASSEMBLY ILLUSTRATIONS amp PARTS LISTS Printer Diagram Major Assembly Tree 73802 73804 73806 73809 73810 73815 73816 73819 72135 Carriage Box Carriage Drive Lower Drive Document Drive Keypad Display Electromechanical Printer Main PCB including 72133 keypad and schematics DP8 amp DP9 DOCUMENT PRINTERS FUNCTIONAL SPECIFICATIONS 1 1 Print Characteristics Print Method Print Spacing Fonts Print Speed chars second Dot Graphics dots inch Feed Speed Feed Accuracy Ribbon 24 wire dot matrix impact automatic thickness compensation 5 6 8 5 10 12 17 20 and 24 chars inch 96 char ASCII international character set Windows True Type amp graphics Characters inch Correspondence Normal Draft 10 75 150 225 12 90 180 270 60 120 180 360 horizontal 72 180 vertical 50 mSec single line feed at 5 or 6 lines inch 12 inches second 305 mm sec slew speed 0 6 Cartridge life
78. ure for firmware E9 and earlier see 3 7 944 FUNCT prints lines of overlapping X s and O s 10 apart Set FORWARD COMPENSATION so that the distance between lines of X s is 10 00 254mm 0 02 0 5mm Set REVERSE COMPENSATION so that the line of O s printed at the top of the page overlaps the line of X s within 0 02 0 5mm b Procedure for firmware EA and later see 3 7 943 FUNCT prints line pairs with values of 4 through 4 Set both FORWARD and REVERSE COMPENSATION with the value whose line pair is closest to 10 00 254mm 0 02 0 5mm EJECT HOLD OFFSET is set so that an ejected document is still held in the drive rollers but can be removed by pulling gently on it CONFIGURATION selects certain custom operating features and should not be set to a value other than shown on the configuration label without contacting the factory GATE OFFSET is set by the Auto Alignment Gate Height procedure see 5 4 7 EDGE SENSOR is set so the distance from the left document edge to the left edge of the first character printed by 95 FUNCT is 0 20 5 1mm This parameter is available on DP8 serial number 182057 and higher and DP9 serial number 293501 and higher NORMAL DARKNESS Lower values reduce darkness and increase ribbon life at normal print speed Select the lowest value that provides suitable legibility on thick forms CQ DARKNESS similarly controls darkness at correspondence quality print speed PRINTHEAD TYPE early DP8 only adjusts p
79. uts via an internal A D converter 4 2 7 Character Printing The carriage motor steps the carriage in 1 120 increments but dots can be printed three times per increment Printing at 10 characters per inch cpi uses a 13 wide X 23 high character matrix 13 dots are used for printing a character and 5 dots for the intercharacter space Printing at 12 cpi uses a 11 X 23 matrix with 11 dots used for printing and 4 for spacing Printing at 17 1 cpi uses a 7 X 23 matrix with 7 dots used for printing and 3 5 for spacing At correspondence quality CQ speed half increment printing is used to double the horizontal resolution and the matrix doubles to 25 X 23 for 10 cpi and 19 X 23 for 12 cpi At all print speeds only every other dot position can be printed so the maximum number of horizontal dots printed is 4 for a 7 wide matrix 6 for an 11 wide 7 for a 13 wide 10 for a 19 wide and 13 for a 25 wide matrix In all print modes the upper 19 printwires are used for printing normal characters the 20 through 23 wires for lower case descenders and the 24 wire for underlining Printing occurs at a maximum frequency of 1 350 Hz 26 FIRE Q26 TYP D23 TYP NO CHOP 38VDC FIRE EXT FIRE NO CHOP FIRE EXT U5 PIN 15 U13 PIN 3 38V Q7 SOURCE UUUUL 70V 50V Q26 DRAIN COIL CURRENT Fig 4 2 Printhead Drive Circuit dashed lines are for revision F and later boards 5 0 MAINTENANCE 5 1 LUBRICATION AN
80. y Disconnected sensor cable Reinsert sensor cable Defective left home sensor Replace multi sensor PCB Display reads Cover Open even Cover sensor cannot see Override cover sensor using 99 when cabinet is closed reflective dot on inside of cabinet FUNCT 3 5 3 or replace reflective foil dot 5 6 5 No Document Motion If a document will not advance upon insertion 1 Press EJECT if the previous document was manually removed without an eject command Press AT if configured for DOCUMENT INSERT WITH AT KEY see 3 5 1 Check that the drive belts are on their pulleys and the pulleys are tight on their shafts Check that the motor cable is seated onto J2 of the main PCB Remove the connector cover and check that the four motor leads are seated in their individual connector slots 6 Measure about 6 ohms resistance between pins 1 and 2 and between 3 and 5 of the motor connector If not replace the motor see 5 5 11 7 Repair or replace the main PCB with a bad U1 or U2 driver circuit O1 N 5 6 6 No Carriage Motion Ifthe carriage will not move at power up CARRIAGE FAULT or after a document is inserted Check that the flex cable is firmly seated in the connector on the Sensor PCB Check that the shipping blocks fastening the carriage have been removed Press ENTER if configured for PRINTING AFTER ENTER KEY see 3 5 1 Check that the motor cable is seated onto J5 of the main PCB

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