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Craden DP8 Technical Manual

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See also: Operator's Manual , Installation Manual
CRADEN
P E R I P H E R A L S
C O R P O R A T I O N
DP8 & DP9
DOCUMENT PRINTERS

TECHNICAL MANUAL

P/N 99090
REVISION 7
7/2007
7860 AIRPORT HIGHWAY, PENNSAUKEN, NJ 08109
(856) 488-0700 (856) 488-0925 FAX
www.craden.com

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Summary of Contents for Craden DP8

  • Page 1: Technical Manual

    CRADEN P E R I P H E R A L S C O R P O R A T I O N DP8 & DP9 DOCUMENT PRINTERS TECHNICAL MANUAL P/N 99090 REVISION 7 7/2007 7860 AIRPORT HIGHWAY, PENNSAUKEN, NJ 08109 (856) 488-0700 (856) 488-0925 FAX www.craden.com...
  • Page 2 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.

  • Page 3: Table Of Contents

    DP8 & DP9 DOCUMENT PRINTERS - FUNCTIONAL SPECIFICATIONS INSTALLATION INSTALLATION PROCEDURE RESHIPMENT OPERATION RIBBON CARTRIDGE LOADING KEYPAD OPERATION DISPLAY OPERATION DOCUMENT INSERTION CONFIGURATION 3.5.1 Printer Parameters 3.5.2 Communication Parameters 3.5.3 Override Parameters 3.5.4 Service Parameters DIAGNOSTICS 3.6.1 Power Up Diagnostics 3.6.2...
  • Page 4 3.13.8 Rollers 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 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 ELECTRONICS IN DETAIL...
  • Page 5 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 & PARTS LISTS Printer Diagram Major Assembly Tree 73802 Carriage 73804 Box 73806 Carriage Drive 73809 Lower Drive 73810 Document Drive 73815 Keypad/Display...

  • Page 6: Dp8 & Dp9 Document Printers - Functional Specifications

    Single sheets, multipart forms (up to 6 parts), passbooks & envelopes Print Line Width DP8: 5.6” (142mm), DP9: 8.2” (208mm) Form Width 2.5” (64 mm) to 6.5” (165mm) in DP8 or 9.7” (246mm) in DP9 DP8: wider forms printable in landscape mode Form Height 2.5” (64 mm) minimum, no maximum Form Thickness 0.0035”...

  • Page 7: Installation

    5. Connect the interface cable. (See 3.11.3 for cabling information). 6. 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.

  • Page 8: Reshipment

    1. Depress the cabinet latches on the lower front cabinet sides and rotate the cabinet upwards. 2. Pull the lift ring on the right side of the printer forward to lift and lock the carriage. 3. Push down the ribbon guide tabs on each side of the printhead to lower the ribbon shield.

  • Page 9: Keypad Operation

    “B” indicates the port closest to the printer’s right side is active. 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.

  • Page 10: Document Insertion

    The PAUSE printer parameter may be set to delay when the rollers activate for a few seconds or until the A↑ key is pressed. This allows more time to insert cumbersome documents or to train new users.
  • Page 11 Select faster DRAFT, NORMAL, or slower but higher quality CQ print. DRAFT should not be used on passbooks 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.

  • Page 12: Communication Parameters

    Select NO DOC for the parallel interface to indicate paper empty whenever no document is in the printer or NEVER to never indicate paper empty. Select DOC PRES for the parallel interface to indicate off-line whenever no document is in the printer or ALWAYS to always indicate on-line.

  • Page 13: Diagnostics 3.6.1 Power Up Diagnostics

    3.6.1 Power Up Diagnostics Diagnostics run automatically during power-up. If a fault is detected, ROM or RAM TEST BAD may be displayed. If a fault occurs, press A↑ to advance to the next test. However, the printer should not be operated.

  • Page 14: Enhanced Diagnostics

    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.

  • Page 15: Programming

    Two separate command sets, C and I, 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 I is compatible with popular PC based printers. Many commands are identical in both C and I modes.

  • Page 16: Document Movement Commands

    ESC I n 1B 49 n ESC J n 1B 4A n ESC K 1B 4B ESC L 1B 4C ESC R 1B 52 ESC S 1 1B 53 01 ESC T 1B 54 ESC W n 1B 57 n ESC X mn 1B 58 ESC Y...

  • Page 17: Print Commands

    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).
  • Page 18 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).

  • Page 19: Low Density Graphics Commands

    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.

  • Page 20: Configuration Commands

    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.

  • Page 21: Drivers

    7. Select Yes if you want the Craden printer to print all Windows output. Click Next. 8. 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.

  • Page 22: Installing Craden Drivers On Windows Nt, 2000 Or Xp

    Click Yes to continue loading. 10. Insert an 8.5" by 11" page in a DP9 or at least a 5.8" wide by 6" high in a DP8. 11. Right click on the printer icon just installed and then left click on Properties, Ports and Configure Port.

  • Page 23: Writing To The Printer Lcd Display

    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.

  • Page 24: Interface Signals & Cables

    1 of a 25 pin connector is recommended to increase immunity to static discharges and other electrical noise. Printer Pin PC-25 Pin 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 6,20 3.13 Problem Solving...

  • Page 25: No Document Motion

    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.

  • Page 26: Theory Of Operation Overview

    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.

  • Page 27: 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.
  • Page 28 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.
  • Page 29 Phase current Current current Control Comp. U20 - 15 U20 - 15 U20 - 15 J2 - 1 J2 - 1 J2 - 1 J2 – 3 J2 – 3 J2 – 3 3718 Phase Control Shot ≈ 2.7 mSec ≈...

  • Page 30: Printhead Drivers

    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.
  • Page 31 FIRE NO CHOP FIRE EXT FIRE NO CHOP FIRE EXT U5 PIN 15 U13 PIN 3 Q7 SOURCE Q26 DRAIN COIL CURRENT Q26 TYP. RCLK SRCLR Q Timer Fig. 4.2 Printhead Drive Circuit (dashed lines are for revision F and later boards) D23 TYP.

  • Page 32: Maintenance

    5.1 LUBRICATION AND 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.

  • Page 33: Printhead Cleaning

    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.

  • Page 34: Service Parameter Set-Up Procedure

    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.

  • Page 35: Mechanical Adjustments

    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.

  • Page 36: Ribbon Shield Removal/Replacement

    Shield Tips Move the carriage lifter ring up and in to lower the carriage. Close the cabinet turn the printer on and do a test print or transaction. Rotate the shield until it is centered on the carriage. Do not let the shield tips...

  • Page 37: 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 ribbon replacements.

  • Page 38: Carriage Drive Belt Tension

    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.

  • Page 39: Auto Alignment Gate Ramp

    CLEAR to exit the test. Input Guide Roller Shaft Ramp Arm Ramp View: Ramp arm from front of printer with input tray removed Roller Segments Gate fingers Looking into the document drive. Input tray removed for clarity. Gate in “up” position Ramp Adjustment Screw...

  • Page 40: Front Document Roller Spring Force

    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 ↑A. 2. Rotate a lower drive gear to manually feed an ½” wide strip of the thinnest paper used (usually a receipt copy) under the rightmost front upper roller segment.

  • Page 41: Sensor Pcb

    1. Turn off power and disconnect the flex cable from the sensor PCB. 3. Remove the two nuts fastening the PCB to the input guide. 4. Raise the upper front roller and remove the PCB by pushing it to the rear. 5.

  • Page 42: Document Motor

    5.5.9 Printhead 1. 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.

  • Page 43: 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.

  • Page 44: 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.

  • Page 45: No Print Or Light Print

    Print is darker on one side than on the other Ribbon getting tangled in printer Documents being torn 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 always be a little lighter than on a thin one.

  • Page 46: Missing Dots

    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.

  • Page 47: Diagnostic Flowchart

    Power outlet is live • Is the keypad locked? (3.5.3) • Press EJECT & CLEAR and try again • Insert paper, press A↑ key (see printer parameter, DOCUMENT INSERT, 3.5.1) • Check sensors (5.6.4) • Carriage Fault on display? Foam packing removed? •...

  • Page 48: Recommended Spare Parts

    73812-1 72135-1 (-2 if with USB option) 72132-1 73297-8 99090 53025 72133-1 72133-2 72137-1 72155-1 72142-1 The DP8 and DP9 use the same 72142-2 recommended spares except 73805-1 for the printhead cable, keypad, 73805-2 and carriage belt assys. 67351 73820-1...

  • Page 49: Printer Diagram

    Printer Diagram Cabinet Latch Cabinet Display Configuration Contrast Adjust Label Keypad/Display Ribbon Cartridge Carriage Printhead Carriage Multisensor PCB Lifter Ring Roller Input Guide Input Tray Document Edge Guide Serial Port B USB Port Serial Port A Power Switch Power Cord...

  • Page 50: Major Assembly Tree

    73802-1 RIBBON GUIDE REVERSER 73801-1 DP8 & DP9 ASSEMBLY TREE 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 PRINTER ASSY 73819-X CABINET...

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