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Microline 590 User Manual

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Chapter 1
1.1 General Information
1.1.01 General Information
The Microline 590 and Microline 591 are letter quality dot-matrix printers which utilize OKISMART paper
handling. Patented Okidata technology does away with the manual head gap adjustment. The Microline
590/591 actually "reads and learns" the media you feed in, then automatically adjusts the head gap to the
optimum distance. This auto-gapping process leads to longer printhead life.
An optional, user-installable Color Kit (coupled with a customer-provided color software package) allows
the printers to add impact to graphics, charts, transparencies and text presentations.
Additional options include the Bottom Feed Push Tractor, Cut-Sheet Feeder, Pull Tractor and Serial
Interface Board.
The Microline 590 is an 80 column printer.
The Microline 591 is a 132 column printer.
Okidata's extended two year limited warranty covers the parts, labor and printhead on both printers.
The following items are included with the printer:
OKISMART Typer - software which provides the flexibility for the Microline 590/591 to function like a
typewriter on checks, labels and envelopes.
OKISMART Panel - a utility program that lets you control selected printer functions from your personal
computer.
Scalable Fonts - 14 scalable fonts, available on diskette.
Note: The OkiSmart software includes three programs:
1. OkiSmart Control
2. OkiSmart Panel Emulator
3. OkiSmart Setup
Refer to the Printer Handbook for more information.
ML590/591 ( 96-02-07 )

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Summary of Contents for Microline Microline 590

  • Page 1 Okidata's extended two year limited warranty covers the parts, labor and printhead on both printers. The following items are included with the printer: OKISMART Typer - software which provides the flexibility for the Microline 590/591 to function like a typewriter on checks, labels and envelopes.

  • Page 2: Physical Specifications

    Physical Specifications 1.2 PHYSICAL SPECIFICATIONS 1.2.01 Dimensions Note: Dimensions INCLUDE the platen knob, acoustic cover, and paper separator. Microline 590 Width: 18.35 inches (466 millimeters) Depth: 17.24 inches (438 millimeters) Height: 6.52 inches (165 millimeters) Microline 591 Width: 24.41 inches (620 millimeters) Depth: 17.24 inches (438 millimeters)

  • Page 3: Power Requirements

    Power Requirements POWER REQUIREMENTS 1.3.01 Input Power 120 VAC: +5.5 / -15% 230/240 VAC: +10 / -14% 1.3.02 Power Consumption Operating: 110 VA Idle: 40 VA 1.3.03 Power Frequency 120 VAC: 60 Hz +/- 2% 230/240 VAC: 50/60 Hz +/- 2% ML590/591 ( 96-02-07 )

  • Page 4: Environmental Conditions

    Environmental Conditions ENVIRONMENTAL CONDITIONS 1.4.01 Acoustic Rating Letter Quality Mode: 53 dBA Quiet Mode: 50 dBA 1.4.01 Altitude 10,000 feet (3,050 meters) 1.4.03 Ambient Temperature and Relative Humidity (RH) While operating: 41° to 104° F (5° to 40° C) Operating humidity: 20% to 80% RH While in storage: 14°...
  • Page 5 1.6 Operation Spec's - Print Speed and Character Matrix 1.6.01 Character Matrix Sizes Table of Print Speed and Character Matrix Mode Utility High Speed Draft Speed 120 (12 cpi) 360 (12 cpi) 450 (15 cpi) Matrix (H x V) 29 x 18 9 x 17 7 x 17 Print Speed at Different CPI for the ML 590...

  • Page 6: Characters Per Line

    1.6.02 Characters Per Line 1.6.02 Characters Per Line Microline 590 Characters Per Characters Per Utility Letter Quality Line Inch 17.1 Microline 591 Characters Characters Utility Letter Per Line Per Inch Quality 17.1 ML590/591 ( 96-02-07 )

  • Page 7: Character Pitches

    1.6.03 Character Pitches 1.6.03 Character Pitches 5, 6, 8.5, 10, 12, 15, 17.1, 20 ML590/591 ( 96-02-07 )

  • Page 8: Character Sets

    1.6.04 Character Sets 1.6.04 Character Sets Standard ASCII EPSON Character Set I & II IBM Character Set I, II & All Characters Foreign Character Substitution International Character Sets Code Page 850, 860, 863 and 865 Bar Code: Code 39 UPC A UPC E EAN 8 EAN 13...

  • Page 9: Printer Emulations

    1.6.05 Printer Emulations 1.6.05 Printer Emulations Note: The emulations are co-resident Epson LQ IBM XL 24E (AGM) IBM Proprinter ML590/591 ( 96-02-07 )
  • Page 10 1.6.06 Fonts 1.6.06 Fonts Letter Quality Courier Letter Gothic Prestige Orator Roman Swiss Draft Utility High Speed Draft (15 cpi) Bar Code Code 39 UPC A UPC E EAN 8 EAN 13 Interleaved 2 of 5 Code 128 POSTNET ML590/591 ( 96-02-07 )

  • Page 11: Front Panel Switches

    1.6.07 Front Panel Switches 1.6.07 Front Panel Switches Select Micro Feed Up / Down Menu Mode Paper Park Line Feed Pitch Selection Form Feed Print Quality Selection Top of Form Tear Quiet ML590/591 ( 96-02-07 )

  • Page 12: Graphics Resolution

    1.6.08 Graphics Resolution 1.6.08 Graphics Resolution Graphics Resolution: 360 x 360 DPI maximum ML590/591 ( 96-02-07 )
  • Page 13 1.6.09 Interface 1.6.09 Interface Standard Parallel Optional RS232C Serial ML590/591 ( 96-02-07 )

  • Page 14: Line Feed Increments

    1.6.10 Line Feed Increments 1.6.10 Line Feed Increments Fixed 6 lines per inch (lpi)[0.167 inch (4.23 millimeters)] 8 lines per inch (lpi)[0.125 inch (3.175 millimeters)] Variable n/60 inch n/72 inch n/180 inch n/216 inch n/360 inch ML590/591 ( 96-02-07 )

  • Page 15: Line Feed Time

    1.6.11 Line Feed Time 1.6.11 Line Feed Time 65 milliseconds 6 lines per inch (lpi) 6 milliseconds 8 lines per inch (lpi) 1 second 5.0 inches (Continuous paper feed rate) ML590/591 ( 96-02-07 )

  • Page 16: Menu Mode

    1.6.12 Menu Mode 1.6.12 Menu Mode Print: Prints the entire menu. Group: Selects Group Function Item: Selects Item Set: Selects Item Value Exit: Exits Menu Mode, Enters Select ML590/591 ( 96-02-07 )

  • Page 17: Paper Feed Methods

    1.6.13 Paper Feed Methods 1.6.13 Paper Feed Methods Standard Friction Feed (Top) Rear Push Tractor (Rear) Optional Pull Tractor (Bottom) Bottom Push Tractor (Bottom) Single-Bin Cut Sheet Feeder (Top) CSF 5000 - Narrow CSF 5001 - Wide ML590/591 ( 96-02-07 )

  • Page 18: Paper Feed Paths

    1.6.14 Paper Feed Paths 1.6.14 Paper Feed Paths Top Feed (Standard) Rear Feed (Standard) Bottom Feed (by using an Optional feed mechanism) Special Features Paper Park Automatic Paper Loading Forms Tear Off ML590/591 ( 96-02-07 )

  • Page 19: Paper Loading

    1.6.15 Paper Loading 1.6.15 Paper Loading Auto Loading (Top Feed) Press LOAD switch for Bottom/Rear Feed ML590/591 ( 96-02-07 )

  • Page 20: Paper Out Detection

    1.6.16 Paper Out Detection 1.6.16 Paper Out Detection Distance from end of paper Rear Feed: 0.5 inches (12.7 mm) Bottom Feed: 0.5 inches (12.7 mm) Top Feed: 0.5 inches (12.7 mm) ML590/591 ( 96-02-07 )

  • Page 21: Paper Tear Capabilities

    1.6.17 Paper Tear Capabilities 1.6.17 Paper Tear Capabilities Forms Tear-0ff (sharp edge on access cover) Metal Tear Bar (with optional bottom tractor unit) ML590/591 ( 96-02-07 )

  • Page 22: Print Method

    1.6.18 Print Method 1.6.18 Print Method Printhead Type General Information Impact: Dot Matrix 24 pin printhead .0079 inch (.20 millimeter) diameter pins Overheat Protection When printhead temperature exceeds 110 degrees Celsius, the printer stops bi-directional printing. Uni-directional printing begins. If the temperature exceeds 115 degrees Celsius, printing stops. Printing will resume when the printhead temperature drops below 115 degrees Celsius.

  • Page 23: Printhead Gap Information

    Printhead Gap Information Printhead Gap Information Three items factor into printhead gap information. 1. Printhead Gap Adjustment This is a SERVICE ADJUSTMENT made by a technician. It is covered in Section 3.3 of this Service Handbook. The Adjustment measures 0.014, +/- 0.001 inches (0.35, +/- 0.03 mm). 2.
  • Page 24 ML590/591 ( 96-02-07 )

  • Page 25: Print Modes

    1.6.19 Print Modes 1.6.19 Print Modes Letter Quality Utility High Speed Draft ML590/591 ( 96-02-07 )

  • Page 26: Print Speed

    1.6.20 Print Speed 1.6.20 Print Speed Table of Print Speed and Character Matrix Mode Utility High Speed Draft Speed 120 (12 cpi) 360 (12 cpi) 450 (15 cpi) Matrix (H x V) 29 x 18 9 x 17 7 x 17 ML590/591 ( 96-02-07 )

  • Page 27: Paper Specifications

    1.7.01 Types Card Stock Weight: 120 lbs. (450 g/m2) Maximum Width: Microline 590 5 to 8 inches (12.7 to 20.3 centimeters) Microline 591 5 to 14 inches (12.7 to 35.6 centimeters) Length: 3 to 17 inches (7.62 to 43.18 centimeters) Thickness: .017 inches (0.44 millimeters)
  • Page 28 Information: Refer to the Printhead Gap Information, Section 1.6. Labels Weight: Width: Microline 590 3.5 to 10.5 inches (8.8 to 26.6 centimeters) Microline 591 3.5 to 16.5 inches (8.8 to 41.9 centimeters) Length: 3 to 17 inches (7.62 to 43.18 centimeters) Thickness: .011 inches (0.28 mm) Maximum (including backing)
  • Page 29 Minimum: 3.5 inches (8.8 centimeters) Maximum: 10.5 inches (26.6 centimeters) Microline 591 Minimum: 3.5 inches (8.8 centimeters) Maximum: 16.5 inches (41.9 centimeters) Printing Area Microline 590 8 inches Maximum Microline 591 13.6 inches Maximum ML590/591 ( 96-02-07 )

  • Page 30: Memory Specifications

    1.8 Memory Specifications MEMORY SPECIFICATIONS 1.8.01 EEPROM 1 Kbit serial EEPROM (used to store Menu data) 1.8.02 ROM "Older" Configuration 1 Mbit, Character Generator ROM (located on main control board, 05C) 1 Mbit, Printer Control EPROM (located on main control board, 05D) "New"...
  • Page 31 Consumables CONSUMABLES 1.9.01 Ribbon CAUTION: Using a non-Okidata ribbon may damage the printhead and void any warranties. Material Cartridge Fabric Types Black Ribbon Color Ribbon Magenta Yellow Cyan Black Life (On average, at 10 characters per inch, Utility Mode) Black Ribbon...
  • Page 32 1.10 Options 1.10 OPTIONS Cut Sheet Feeders ..Pull Tractor Kit .... ( Color Ribbon Kit ..( Bottom Push Tractor ..( Serial Interface ....( Roll Paper Stand ..( Bitstream Facelift 2.0 ... OKIsmart Typer Utility .. OKIsmart Panel Utility .. ML590/591 ( 96-02-07 )

  • Page 33: Cut Sheet Feeders

    1.10.01 Cut Sheet Feeders 1.10.01 Cut Sheet Feeders The CSF-5000 is a narrow feeder for the Microline 590. Single Bin with envelope capability Paper Width: 7.2" to 8.5" (18.3 cm to 36.3 cm) Paper Length: 10.1" to 14" (25.6 cm to 35.6 cm) Capacity: 170 sheets (16 lb.), 100 sheets (20 lb.)

  • Page 34: Pull Tractor Kit

    1.10.02 Pull Tractor Kit 1.10.02 Pull Tractor Kit Note: The Pull Tractor Kit (P/N 70023001) is a narrow feeder for the Microline 590. The Pull Tractor Kit (P/N 70023201) is a wide feeder for the Microline 591. Bottom Feed Rear Feed (For Push/Pull Operation)

  • Page 35: Color Ribbon Kit

    1.10.03 Color Ribbon Kit 1.10.03 Color Ribbon Kit Includes: Color mechanism Color Ribbon End user installable ML590/591 ( 96-02-07 )

  • Page 36: Bottom Push Tractor Kit

    1.10.04 Bottom Push Tractor Kit 1.10.04 Bottom Push Tractor Kit Note: The Bottom Push Tractor Kit (P/N 70022901) is a narrow feeder for the Microline 590. The Bottom Push Tractor Kit (P/N 70023101) is a wide feeder for the Microline 591. Bottom Feed Paper Type: Continuous Feed Includes: Stand and Metal Tear B...

  • Page 37: Serial Interface

    1.10.05 Serial Interface 1.10.05 Serial Interface Super-Speed 19.2K RS-232C Ready/Busy/X-On/X-Off Protocols Can be configured through the Menu or OKISmart Utility Program ML590/591 ( 96-02-07 )

  • Page 38: Roll Paper Stand

    1.10.06 Roll Paper Stand 1.10.06 Roll Paper Stand Adapts printer for use with roll-type paper (Model 590 only) Includes: Stand, Support, Cord and DIN plug for connection to printer ML590/591 ( 96-02-07 )
  • Page 39 Approximately 4 million characters Color: Black: Approximately 1.5 million characters Cyan: Approximately 1.5 million characters Magenta: Approximately 1.5 million characters Yellow: Approximately 0.8 million characters 1.11.06 Warranty (Limited) Two years, parts and labor 1.11.07 Service Authorized Okidata Service Centers ML590/591 ( 96-02-07 )

  • Page 40: Chapter 2 2.1 Electrical Operation

    Chapter 2 2.1 Electrical Operation ELECTRICAL OPERATION 2.1.01 General Information The printers is made of the following electrical components. Main Control Board Power Supply Assembly Operator Panel Space Motor / Line Feed Motor Printhead ML590/591 ( 96-02-07 )

  • Page 41: Main Control Board

    2.1.02 Main Control Board 2.1.02 Main Control Board The main control board is made up of the microprocessor, peripheral circuits, drive circuits, sensors and interface connectors. The power to the main control board is supplied by the power supply assembly through a wire harness.

  • Page 42: Block Diagram

    Block Diagram ML590/591 ( 96-02-07 )

  • Page 43: Program Rom

    Program ROM Program ROM Location 05D: 27C1024 This 64k x 16 bit (Mbit) EPROM contains the control program for the printer. The MPU executes the instructions contained in this program. The Program ROM is assigned to the program memory area of the MPU and instructions are fetched by the PSEN signal of the MPU.
  • Page 44 Location 05E: 511664Z. The RAM is CMOS dynamic RAM with 65,536 words x 16-bit configuration, and is used as a receive buffer, print buffer and work buffer. ML590/591 ( 96-02-07 )

  • Page 45: Character Generator Rom (Cg Rom)

    Character Generator ROM (CG ROM) Character Generator ROM (CG ROM) Location 05C: 27C4096. This 256k x 16 bits (4 Mbit) masked EPROM contains the character data for the various fonts. The CG ROM is assigned to the program memory area of the MPU. The data is accessed by the PSEN signal of the MPU.

  • Page 46: Electrically Erasable Programmable Rom (Eeprom)

    Electrically Erasable Programmable ROM (EEPROM) Electrically Erasable Programmable ROM (EEPROM) Location 03C: 93CS46. The EEPROM is a CMOS serial I/O type memory which is capable of electrically erasing and writing 1,024bits. The EEPROM contains the menu data and the head drive time correction data. ML590/591 ( 96-02-07 )
  • Page 47 Location 02D: MSM(79V035). Detects the output of the two-phase sensor on the DC space motor to control the motor drive phase. Transmits and receives serial data to and from the printhead based on the dot timing (which is derived from the space motor speed). Controls the external interface.
  • Page 48 2.1.03 Initialization 2.1.03 Initialization This printer is initialized when the printer is powered on or when the I-PRIME-N signal is input from the host via the parallel interface. Printer Initialization occurs as listed below. The RST-N signal is output from the Reset circuit to reset the MPU and LSIs. The program is executed and the LSIs are reset by the MPU via IORST-N.

  • Page 49: Parallel Interface Control

    2.1.04 Parallel Interface Control 2.1.04 Parallel Interface Control The parallel data input from the host to the interface LSI is latched to the internal register by the falling edge of the STROBE-N signal. The LSI sets the BUSY-N signal to inform the host that the data is being processed. The LSI also outputs the RXD-N signal to inform the MPU of data reception.

  • Page 50: Print Control

    2.1.05 Print Control 2.1.05 Print Control The print data is transmitted as serial data from the LSI to the control circuit and the driver contained in the printhead. After the data is printed, the sensor analog circuit controlling each pin returns the pin stroke data to the MPU.

  • Page 51: Lsi/Printhead Interface

    LSI/Printhead Interface LSI/Printhead Interface The connection between the LSI and the printhead is made with the bi-directional serial data bus. The LSI transmits the print data as serial data to the logic circuit of the printhead. The printhead returns serial data from the printhead sensor analog circuit to the LSI. This information is used to determine the optimum drive time for the next print request.

  • Page 52: Gap Adjust Control

    Gap Adjust Control Gap Adjust Control The Gap Adjust LSI receives stroke length information for all of the printhead pins from the sensor analog circuit. The Gap Adjust LSI then sets the optimum printhead gap for the printing medium. Note: Refer to Section 2.2.03( ) for a description of the mechanical process.

  • Page 53: Print Compensation Control

    Print Compensation Control Print Compensation Control The printhead compensates for the shape of the platen as shown below. Note: Refer to Section 2.1.08 - Head Drive Time ( ML590/591 ( 96-02-07 )

  • Page 54: Space And Line Feed (Sp/Lf) Motor Control

    2.1.06 Space and Line Feed (SP/LF) Motor Control 2.1.06 Space and Line Feed (SP/LF) Motor Control The LSI (Location 02D: MSM79V035) generates the space motor and the line feed motor control signals according to commands received from the MPU. These signals are sent to the SP/LF motor driver.

  • Page 55: Line Feed Motor Control

    Line Feed Motor Control Line Feed Motor Control The SP/LF motor driver (Location 5A: MHM2025) drives the line feed motor in two-phase bipolar, based on the phase changeover data output from the LSI. The serial data from the LSI (02D:MSM79V035) is processed by a register contained in the SP/LF motor driver to measure the overdrive time and to change the phase.

  • Page 56: Space Motor Control

    Space Motor Control Space Motor Control The SP/LF motor driver (Location 5A: MHM2025) drives the three-phase brushless motor. Motor movement is based on the phase signal (SPU,SPV and SPW) and the speed instruction data from the LSI. The MPU can identify the current speed of the space motor by measuring the pulse width of the output (Phase A, Phase B) of the encoder disk sensor.

  • Page 57: Encoder Disk

    Encoder Disk Encoder Disk As the space motor operates, the encoder disk spins. When the encoder disk interrupts the photo sensors, the signals Phase A and Phase B are generated. The LSI (Location 02D: MSM79V035) divides these edge pulse signals (the frequency division is based on the selected print pitch) to generate the signal IPT.

  • Page 58: Operation Panel

    2.1.07 Operation Panel 2.1.07 Operation Panel The Serial I/O Port (Ports 20 - 23) of the MPU reads the operation panel switch data from the operation panel control LSI (Location IC1: BUS148S). The Serial I/O Port also outputs LED data to the operation panel control LSI.

  • Page 59: Alarm Circuit

    2.1.08 Alarm Circuit 2.1.08 Alarm Circuit Driver Circuit Alarm Processing The printhead driver output, the head gap magnet output and the color ribbon magnet drive signal are monitored at R670 and C15, and the POWER OFF-P signal is output by the comparator (Location 01A: IC2901) when driven for more than the specified time.

  • Page 60: Head Drive Time

    Head Drive Time Head Drive Time The head drive time is modified to compensate for the amount of the voltage drop of the POWLEV signal. By monitoring the voltage drop every 500 microseconds, the MPU is able to control and maintain the impact necessary for each printhead pin. ##### ML590/591 ( 96-02-07 )
  • Page 61 Print Speed Print Speed Actual Voltage (+40 vdc) Passes Relative Print Speed Required +34 vdc or greater 100% +32 vdc to +34 vdc Approximately 85% +30 vdc to +32 vdc Approximately 50% +30 vdc or less Less than 50% ML590/591 ( 96-02-07 )

  • Page 62: Head Overheat Alarm Processing

    Head Overheat Alarm Processing Head Overheat Alarm Processing Two thermistors are used to monitor the printhead temperature. One is contained in the printhead and the other in the printhead driver. The voltage of the TSD signal is monitored at the MPU A/D port to control the pass number and print method (unidirectional / bi-directional) at each of seven levels.

  • Page 63: Power Supply Circuit

    2.1.09 Power Supply Circuit 2.1.09 Power Supply Circuit The switching type power supply circuit supplies the +5 vdc, +/-8 vdc, +12 vdc and +40 vdc. Table of Output Voltages Voltage / Signal Purpose +5 vdc IC logic levels LED drive voltages +8 vdc Serial interface line voltage comparator IC -8 vdc...

  • Page 64: Mechanical Operation

    2.2 Mechanical Operation MECHANICAL OPERATION The following section explains the mechanical operation of the printer. Spacing Mechanism ........( Head Gap Mechanism ......Ribbon Drive Mechanism ......Line Feed Mechanism ........ ( Paper Detect Mechanism ......Support Protector Mechanism ....Automatic Paper Load .......

  • Page 65: Printhead Mechanism

    2.2.01 Printhead Mechanism 2.2.01 Printhead Mechanism The printhead is a spring charged 24-pin printhead. It is attached to the carriage, which moves parallel to the platen. Electrically, the printhead is controlled by the main control board via the carriage cable and the space motor. ML590/591 ( 96-02-07 )

  • Page 66: Interconnect Diagram: Control Board To Printhead

    Interconnect Diagram: Control Board to Printhead Interconnect Diagram: Control Board to Printhead Note: The printhead coil resistance values ARE NOT LISTED. The individual print wire control lines CANNOT be accessed on this printhead. ML590/591 ( 96-02-07 )

  • Page 67: Line Feed Motor Resistance

    Line Feed Motor Resistance Line Feed Motor Resistance The resistance of each coil should be approximately 13 ohms. ML590/591 ( 96-02-07 )

  • Page 68: Space Motor Resistance

    Space Motor Resistance Space Motor Resistance The resistance of each coil should be approximately 5 ohms. ML590/591 ( 96-02-07 )

  • Page 69: Printhead Operation

    Printhead Operation Printhead Operation When the printhead is idle, the armature is attracted to the permanent magnet. The print wires, which are attached to each armature, are then concealed inside the wire guide. When a signal to print a character is received, current flows through a coil. The magnetic field generated by the coil opposes the magnetic field between the armature and the permanent magnet.
  • Page 70 ML590/591 ( 96-02-07 )

  • Page 71: Spacing Mechanism

    2.2.02 Spacing Mechanism 2.2.02 Spacing Mechanism The spacing mechanism consists of a carriage shaft (mounted parallel to the platen), and a carriage frame which moves along the shaft. The carriage frame is driven by a DC servo motor mounted on the carriage frame. Items included in the spacing mechanism are listed below. Space Motor Assembly DC Servo Motor Motor gear...

  • Page 72: Head Gap Mechanism

    2.2.03 Head Gap Mechanism 2.2.03 Head Gap Mechanism The head gap is automatically set for the thickness of the medium loaded in the printer. In the case of envelopes, where the medium thickness varies as the printhead moves along the platen, the head gap changes to compensate for the differences in thickness.
  • Page 73 ML590/591 ( 96-02-07 )

  • Page 74: Ribbon Drive Mechanism

    2.2.04 Ribbon Drive Mechanism 2.2.04 Ribbon Drive Mechanism Black Ribbon Drive Operation The ribbon drive mechanism feeds the ribbon in synchronization with the spacing operation. The force required to drive the ribbon is obtained from the space motor. The ribbon drive mechanism is composed of the following items. Ribbon drive gear assembly Ribbon gear (located on the space motor assembly) Ribbon cartridge...

  • Page 75: Color Ribbon Shift Mechanism

    Color Ribbon Shift Mechanism Color Ribbon Shift Mechanism Items of the color ribbon unit option are listed below. Color shift unit Color ribbon (4 colors) Four colors can be selected by sliding the color ribbon holder up or down. Here is a description of how the ribbon holder is shifted.

  • Page 76: Line Feed Mechanism

    2.2.05 Line Feed Mechanism 2.2.05 Line Feed Mechanism The line feed operation is accomplished by activating the line feed motor which turns the platen. The rotation of the platen is used to feed paper from the selected paper path. Components of the paper feed mechanism are listed below. Line Feed Motor (pulse motor) with Gears Line Feed Idler Gear Platen...
  • Page 77 Bottom OPEN OPEN CLOSED 250 g CLOSED 700 g Rear CLOSED 90 g OPEN ML590/591 ( 96-02-07 )

  • Page 78: Cut Sheet/Continuous Sheet Switching Mechanism

    Cut Sheet/Continuous Sheet Switching Mechanism Cut Sheet/Continuous Sheet Switching Mechanism Top Feed (for cut sheet paper) When cut sheet paper is used, place the change lever in the Top Feed position. As the platen turns, the platen gear causes the idle gear to rotate. At this time, the rear and front pressure rollers press against the platen and feed the cut sheet.

  • Page 79: Cut Sheet Paper Feed Operation

    Cut Sheet Paper Feed Operation Cut Sheet Paper Feed Operation As the line feed motor rotates, power is transferred through decelerating gears (line feed idler gear, platen gear) to the platen. When using cut sheet paper, the change lever must be in the TOP position so the platen and pressure rollers can feed the paper.

  • Page 80: Continuous Paper Feed (Rear Tractor Mechanism)

    Continuous Paper Feed (Rear Tractor Mechanism) Continuous Paper Feed (Rear Tractor Mechanism) As the platen rotates, power is transferred to the tractor gear from the platen gear, the idler gear and the change gear. The tractor gear drives the pin tractor belts which feed the continuous paper.

  • Page 81: Continuous Paper Feed (Pull Tractor Mechanism)

    Continuous Paper Feed (Pull Tractor Mechanism) Continuous Paper Feed (Pull Tractor Mechanism) Bottom feed of continuous sheets is possible only when an optional pull tractor unit is installed. As the platen rotates, power is transferred to the drive gear from the LF idler gear, the platen gear, idler gear B and idler gear A.
  • Page 82 Continuous Paper Feed (Bottom Tractor Feed Mechanism) Continuous Paper Feed (Bottom Tractor Feed Mechanism) As the platen rotates, power is transferred to the drive gear from the platen gear, the idle gear and the tractor change gear. The drive gear turns the pin tractor belts on the bottom tractor feed unit to feed the continuous paper.

  • Page 83: Continuous Paper Feed (Push/Pull Tractor Mechanism)

    Continuous Paper Feed (Push/Pull Tractor Mechanism) Continuous Paper Feed (Push/Pull Tractor Mechanism) This mechanism consists of an optional pull tractor and a standard push tractor mechanism. Continuous paper is fed by these two tractors at the same time. ML590/591 ( 96-02-07 )

  • Page 84: Paper Detection Mechanism

    2.2.06 Paper Detection Mechanism 2.2.06 Paper Detection Mechanism Top Feed Paper Detection When the cut sheet paper is inserted into the printer, Point A of Paper Near EndLever - B is pushed backward rotating Paper Near End Lever - A. As Paper Near End Lever - A rotates, it contacts the Rear Sensor Lever, rotating it.

  • Page 85: Support Protector Mechanism

    2.2.07 Support Protector Mechanism 2.2.07 Support Protector Mechanism During printer initialization, the support protector is latched in the stored position (approximately 5 mm from the left bracket of the main frame). Just before paper is loaded, the printhead moves towards the left bracket and unlatches the support protector.

  • Page 86: Automatic Paper Load

    2.2.08 Automatic Paper Load 2.2.08 Automatic Paper Load The Microline 590/591 printers will automatically detect cut sheet paper and feed the paper to the TOP OF FORM position. Cut Sheet Paper Set the change lever to the TOP FEED position.
  • Page 87 main control board. Place continuous feed paper in the appropriate tractor. Press the "FF/LOAD" switch. The line feed motor will feed the paper until the leading edge of the paper to the top of form position. ML590/591 ( 96-02-07 )

  • Page 88: Paper Park

    2.2.09 Paper Park 2.2.09 Paper Park If continuous feed paper is installed and printing on cut sheet paper is desired, it is not necessary to unload the continuous feed paper. The Paper Park feature provides a means of retracting the continuous feed paper from the paper path, to allow feeding of the cut sheet paper.

  • Page 89: Chapter 3 3.1.01 General Information

    Chapter 3 3.1.01 General Information 3.1.01 General Information This section lists the parts replacement, adjustment, cleaning, lubrication, and shipping procedures. Disassembly should not be performed unless absolutely necessary. NEVER perform disassembly on a malfunctioning printer until you have followed the failure analysis procedures in Section Four of this Service Handbook.( Follow the procedures listed in Adjustments and Service Settings.{ } Adjustments may be...

  • Page 90: Maintenance Tools

    Needle Nose Pliers (4 Inch) Wire Cutters Digital Multimeter Feeler Gauge (capable of measuring .014 inches) Shop Vacuum Clean, soft, and lint-free Cloth All-Purpose Cleaner Contact Kleen (Okidata P/N 51802301) Platen Cleaner Machine Grease Machine Oil ML590/591 ( 96-02-07 )

  • Page 91: Maintenance Precautions

    3.1.03 Maintenance Precautions 3.1.03 Maintenance Precautions 1. Do not disassemble the unit if it is operating normally. 2. Before starting disassembly and assembly, always turn the AC power switch OFF and pull out the AC plug. 3. Detach the interface cable, if installed. 4.

  • Page 92: Disassembly/Assembly Procedures

    This section contains the printer disassembly procedures. Only the removal procedures are explained here. Reverse the procedure for the installation. At the bottom of each procedure is a listing of the parts covered in that procedure. The Okidata part number, item description, comment (RSPL, Option, Consumable) and cross-reference to Appendix B is provided for each part.

  • Page 93: Preliminary Items

    3.2.01 Preliminary Items 3.2.01 Preliminary Items 1. Press the AC switch (1) and power off the printer. 2. Remove the paper, if installed (2). 3. Detach the AC power cord (3). 4. Detach the interface cable, if installed (4). P/N 56609701 Cord: AC RSPL Both B.2.02...

  • Page 94: Printhead Assembly

    3.2.02 Printhead Assembly 3.2.02 Printhead Assembly 1. Perform this procedure: 3.2.01( 2. Open the access cover (1). 3. Lift and remove the ribbon. (Not shown) 4. Pull the head clamp (2) towards the right and then rotate it up to release the printhead (3). 5.

  • Page 95: Ribbon Protector

    3.2.03 Ribbon Protector 3.2.03 Ribbon Protector CAUTION You MUST use a straight slot screwdriver to release the ribbon protector. If you attempt to lift the protector without releasing the tabs, the protector will break. 1. Perform these procedures: 3.2.01{ 3.2.02{ 2.

  • Page 96: Gear Case Assembly

    3.2.04 Gear Case Assembly 3.2.04 Gear Case Assembly 1. Perform these procedures: 3.2.01{ 3.2.02{ 2. Use a straight-slot screwdriver to release the four claws (1) of the gear case assembly (2). 3. Lift and remove the gear case assembly. NOTE: Lubrication When lubricating, refer to Section 3.5 of this Service Handbook.{ P/N 51228501 Gear: Case (Assembly)

  • Page 97: Pull-Up Roller Assembly

    3.2.05 Pull-up Roller Assembly 3.2.05 Pull-up Roller Assembly 1. Perform this procedure: 3.2.01{ 2. Open the access cover (1). 3. Open the cover of the pull-up roller assembly (2). 4. Press at A while rotating the assembly towards the back of the printer. 5.

  • Page 98: Upper Cover, Access Cover, And Sheet Guide Assemblies

    3.2.06 Upper Cover, Access Cover, and Sheet Guide Assemblies 3.2.06 Upper Cover, Access Cover, and Sheet Guide Assemblies Perform this procedure: 3.2.01{ Pull the platen knob (1) straight out and remove it. Set the change lever (2) to the bottom feed position (toward the rear of the printer). Insert a flat-blade screwdriver into the grooves (3) of the frame and pry the upper cover (4) away from the frame.

  • Page 99: Control Board (Akgi)

    3.2.07 Control Board (AKGI) 3.2.07 Control Board (AKGI) 1. Perform these procedures: 3.2.01{ 3.2.06{ 2. Remove the two screws (1). 3. Release the control board (AKGI) (2) from the bracket (3). 4. Tilt the board to access the connectors. 5. Detach connectors CN7 - operator panel (4), CN8 - carriage cable (5), CN3 - power supply (6), and CN6 - line feed motor (7).

  • Page 100: Power Supply Assembly

    3.2.08 Power Supply Assembly 3.2.08 Power Supply Assembly Perform these procedures: 3.2.01{ 3.2.06{ Detach the cable from connector CN2 (1) of the power supply board (2). Detach the cable from connector CN3 (3) of the control board (4). Use a straight slot screwdriver to release the claws and remove the cable clamp (5). Remove the cable (6).

  • Page 101: Operator Panel Pcb (Leop)

    3.2.09 Operator Panel PCB (LEOP) 3.2.09 Operator Panel PCB (LEOP) Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 1. Cut the nylon tie and release the cable. (Not shown) 2. Disengage the claws (1) on both sides of the frame. 3. Lift the operator panel assembly (2) straight up and remove it. 4.
  • Page 102 3.2.10 PC Connector 3.2.10 PC Connector 1. Perform these procedures: 3.2.01{ 3.2.02{ 3.2.04{ 2. Remove the two screws (1). 3. Remove the PC connector (2). NOTE: Installation Do not touch the contacts of the PC connector. Do not touch the contacts of the space motor (3). Cleaning When cleaning, refer to Section 3.4 of this Service Handbook.

  • Page 103: Space Motor And Roller Guide Assemblies

    3.2.11 Space Motor and Roller Guide Assemblies 3.2.11 Space Motor and Roller Guide Assemblies 1. Perform these procedures: 3.2.01{ 3.2.02{ 3.2.04{ 3.2.10 { 2. Remove the three screws (1). 3. Lift the space motor assembly (2). 4. Remove the left (3) and right connector holders (4). 5.

  • Page 104: Carriage Cable

    3.2.12 Carriage Cable 3.2.12 Carriage Cable 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.11{ 2. Slightly bow the carriage cable (1) to release it from the claws (2) and the projection on the main frame (3). 3. Remove the carriage cable. NOTE: Installation The contacts on the cable face up when the cable is positioned on the main frame.

  • Page 105: Space Rack

    3.2.13 Space Rack 3.2.13 Space Rack 1. Perform these procedures: 3.2.01{ 3.2.02{ 3.2.04{ 3.2.10{ 3.2.11{ 2. Remove the spring (1). 3. Disengage the claws (2) on the both ends of the space rack (3). 4. Pull the space rack straight up and remove it. NOTE: Installation After installing the space rack, check the printhead gap adjustment.

  • Page 106: Roller/Holder Backup Assembly

    3.2.14 Roller/Holder Backup Assembly 3.2.14 Roller/Holder Backup Assembly 1. Perform these procedures: 3.2.01{ 3.2.02{ 3.2.04{ 3.2.11{ 2. Use a small straight slot screwdriver to disengage the claws of the backup roller holder spring (1) from the carriage frame (2). 3. Remove the roller/holder backup assembly (3). NOTE: The roller/holder backup assembly includes the backup roller (4), the backup roller holder (5), and the pin (6).

  • Page 107: Guide Rail And Adjust Cam

    3.2.15 Guide Rail and Adjust Cam 3.2.15 Guide Rail and Adjust Cam 1. Perform these procedures: 3.2.01{ 3.2.02{ 3.2.04{ 3.2.11{ 3.2.14{ 2. Rotate the adjust cam (1) in the direction of arrow A as far as possible. 3. Pull the cam out and remove it. 4.

  • Page 108: Left Ground Plate

    3.2.16 Left Ground Plate 3.2.16 Left Ground Plate 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 2. Cut the nylon tie and release the cable. (Not shown). 3. Work the left ground plate (1) up, and then out, to remove it. P/N 51010301 Plate: Left Ground RSPL Both B.2.03...

  • Page 109: Right Ground Plate

    3.2.17 Right Ground Plate 3.2.17 Right Ground Plate 1. Perform these procedures: 3.2.01{ 3.2.06{ 2. Pull the top tabs (1) of the right ground plate (2) out to free the plate from the claws of the base frame. You may have to use a screwdriver to work the plate tabs free. 3.

  • Page 110: Rear And Cut Sheet Paper Feed Sensor Levers

    3.2.18 Rear and Cut Sheet Paper Feed Sensor Levers 3.2.18 Rear and Cut Sheet Paper Feed Sensor Levers 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.16{ 2. Turn the cut sheet/continuous feed paper sensor lever (1) until the flag is at the top, then work the lever free.

  • Page 111: Platen Assembly

    3.2.19 Platen Assembly 3.2.19 Platen Assembly 1. Perform these procedures: 3.2.01{ 3.2.06{ 2. Move the change lever (1) to the bottom feed position (to the rear of the printer). 3. Push the lock levers (2) in, then rotate them towards the front to unlock them from the frame. 4.

  • Page 112: Paper Chute Assembly

    3.2.20 Paper Chute Assembly 3.2.20 Paper Chute Assembly 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.19{ 2. Remove the rear pressure roller (1). 3. Use a straight slot screwdriver to release the claws of the lock spring (2) and remove the spring.

  • Page 113: Line Feed Motor Assembly

    3.2.21 Line Feed Motor Assembly 3.2.21 Line Feed Motor Assembly 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.16{ 3.2.20{ 2. Firmly press down on the line feed motor assembly (1) while tilting the assembly out. 3. Remove the line feed motor assembly. 4.

  • Page 114: Reset Spring

    3.2.22 Reset Spring 3.2.22 Reset Spring CAUTION: Please read through this entire procedure before performing it. Do not press against the vertical extensions of the reset spring at any time during this procedure. Firm pressure will release the spring, not brute force. 1.

  • Page 115: Idle Gear And Change Lever

    3.2.23 Idle Gear and Change Lever 3.2.23 Idle Gear and Change Lever 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.16{ 3.2.17{ 3.2.19{ 3.2.20{ 3.2.22{ 2. Remove the idle gear (1). The idle gear is a large narrow gear. 3. Release the claw (2) of the change lever (3). The claw is accessed from inside the unit. 4.

  • Page 116: Pressure Spring

    3.2.24 Pressure Spring 3.2.24 Pressure Spring 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.16{ 3.2.17{ 3.2.19{ 3.2.20{ 3.2.22{ 3.2.23{ 2. Turn the front release gear arm (1) until it is disengaged. 3. Remove the release cam (2). This is the medium size, thick cam. 4.

  • Page 117: Carriage Shaft

    3.2.25 Carriage Shaft 3.2.25 Carriage Shaft CAUTION The space motor assembly, etc. may be left in place when removing the carriage shaft. However, use extra care when doing so. The carriage cable should be detached from the space motor before removing the carriage shaft. 1.

  • Page 118: Leaf Spring

    3.2.26 Leaf Spring 3.2.26 Leaf Spring 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.16{ 3.2.25{ 2. Position the unit so you can access the top and bottom of the leaf spring (1). 3. Start at one end of the spring. 4.

  • Page 119: Bottom Paper Sensor Levers

    3.2.27 Bottom Paper Sensor Levers 3.2.27 Bottom Paper Sensor Levers 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.16{ 3.2.17{ 3.2.19{ 3.2.20{ 3.2.22{ 3.2.23{ 3.2.24{ 2. Working from the underside of the unit, release the claws of the paper pan (1). When you release a claw, push on the claw to move the paper pan away from the main frame.

  • Page 120: Front Pressure Roller Assembly

    4. Lift and remove the front pressure springs (3A and 3B). NOTE: The front pressure springs for the Microline 590 (3A) have three extensions. The front pressure springs for the Microline 591 (3B) have one extension. The Microline 591 uses both springs.

  • Page 121: Tractor Assembly

    3.2.29 Tractor Assembly 3.2.29 Tractor Assembly 1. Perform these procedures: 3.2.01{ 3.2.06{ 3.2.07{ 3.2.16{ 3.2.17{ 3.2.19{ 3.2.20{ 3.2.22{ 3.2.23{ 3.2.24{ 2. Use a needle nose pliers to release the claw of the tractor gear (1) and remove the gear. 3. Remove the change gear (2). 4.

  • Page 122: Main Frame

    3.2.30 Main Frame 3.2.30 Main Frame All disassembly procedures must be carried out to reach the base frame (1). P/N 53563101 Frame: Main (Narrow) RSPL 590 B.2.03/4/5 P/N 53563201 Frame: Main (Wide) RSPL 591 B.2.03/4/5 ML590/591 ( 96-02-07 )

  • Page 123: Printer Adjustments

    3.3 Printer Adjustments PRINTER ADJUSTMENTS This section contains the procedures for performing adjustments on the printer. These procedures may be required when replacing either consumables or parts. The disassembly/assembly procedures list the required adjustments and refer you to this section. Failure to perform these procedures may result in unnecessary service calls.

  • Page 124: Printhead Gap Adjustment

    3.3.02 Printhead Gap Adjustment 3.3.02 Printhead Gap Adjustment General Information Before performing this adjustment, always verify that the printhead is properly installed. This adjustment should be performed when the following parts are replaced. Printhead(3.2.02) Space Motor Assembly(3.2.11) Space Rack(3.2.13) Guide Rail(3.2.15) Platen Assembly(3.2.19) Carriage Shaft(3.2.25) NOTE:...
  • Page 125 1. Slide the carriage assembly to the left side of the platen. 2. Check the printhead gap. Use a 0.014 inch or 0.35 mm feeler gauge. The printhead gap must measure 0.014 +/- 0.001 inch (0.35 +/- 0.03 mm). 3. Use a large, straightened paper clip (Figure 1 B) to push down on the adjust gear. This will disengage the adjust gear from idle gear D.

  • Page 126: Key Combinations

    3.3.03 Key Combinations 3.3.03 Key Combinations Key Combinations Description SEL + LF<R>(Hold during Power-ON) Reset Menu to Factory Defaults. SEL<R>(Hold during Power-ON) Access Menu (if Menu set to LIMITED OPERATION) QUIET + FF/LOAD<R>(Hold during Reset Top of Form to Factory Default Power-ON) (1 inch) QUIET<R>(Hold during Power-ON)

  • Page 127: Menu Operation

    3.3.04 Menu Operation 3.3.04 Menu Operation General Information The menu is used to customize the printer's settings and features. The Menu is made up of a number of Groups. Each Group has a list of Items. Each Item has several Settings. Menu Mode To place the printer in the Menu Mode, follow this procedure.
  • Page 128 ML590/591 ( 96-02-07 )

  • Page 129: Printing The Menu

    Printing the Menu provides a reference of current menu settings. This will help you move through the menu. Okidata STRONGLY RECOMMENDS printing the Menu before resetting the Menu to factory defaults. Once the Menu is reset, all customized settings are LOST.

  • Page 130: Reset Menu To Factory Defaults

    Always print the menu before resetting the printer to factory defaults. To reset the menu to factory default settings: 1. Before resetting the Menu, Okidata STRONGLY RECOMMENDS printing the Menu. 2. Printing the Menu provides a reference of customized settings.

  • Page 131: Limited Operation

    Limited Operation Limited Operation General Information 1. One of the menu selections that may be set by the end user is the operator panel function. This is found in the Set-up Group of the menu. Operator Panel Function is an item in the Set-up Group.
  • Page 132 Procedure Procedure To return the printer to Full Operation, you must modify the menu. CAUTION: Determine the preference of the end user regarding this feature. If the printer is on a network, do not reset this item without discussing the change with the network supervisor. To access the menu when the printer is set to Limited Operation, follow this procedure.

  • Page 133: Menu Settings

    Menu Settings Menu Settings Factory default settings are printed in Bold. The tables show all possible menu settings available with the Microline 590/591. What you will actually see depends on the active emulation and the options installed. Group Item Setting...
  • Page 134 Skip Over Perforation No Yes Page Width * 13.6" 8" Page Length 11 11 2/3 12 14 17 3 3.5 4 5.5 6 7 8 8.5 " Gap Control Auto Gap Semi Auto Gap 1 2 3 4 5 6 7 8 9 Bottom Feed Line Spacing 6 8 LPI...
  • Page 135 Receive Buffer Size 64K 1 line 32 K Paper Out Override No Yes Print Registration O,0.05mm Left,0.10mm Left, 0.15mm Left,0.20mm Left, 0.25mm Left,0.25mm Right, 0.20mm Right,0.15mm Right, 0.10mm Right,0.05mm Right O p e r a t o r P a n e l Full Operation Function Limited Operation...
  • Page 136 Serial I/F * Parity None Odd Even * * * * * Serial Data 7/8 Bits 8 Bits 7 Bits Protocol Ready / Busy X-ON / X-OFF Diagnostic Test No Yes Busy Line SSD- SSD+ DTR RTS Baud Rate 19200 9600 4800 2400 1200 600 300 bps DSR Signal Valid Invalid...
  • Page 137 Appears only when optional Cut Sheet Feeder is installed. Factory default settings are printed in Bold The tables show all possible menu settings available with the Microline 590/591. What you will actually see depends on the active emulation and the options installed.

  • Page 138: Top Of Form

    3.3.05 Top of Form 3.3.05 Top of Form General Information Top of Form is the distance from the top edge of the paper to the first print position on the page. The red line on the ribbon protector indicates the baseline of the Top of Form. Setting Top of Form 1.
  • Page 139 3.3.06 Paper Park 3.3.06 Paper Park General Information Paper Park allows the user to print using single (cut) sheet pages without removing continuous forms from the printer. Procedure: Continuous Feed to Single Sheet 1. Remove any printed pages from the printer. 2.

  • Page 140: Tear Feature

    3.3.07 Tear Feature 3.3.07 Tear Feature NOTE: Tear is activated by pressing TEAR. It is a manual procedure. FORMS TEAR OFF is activated by changing a setting in the Menu. It is an automatic procedure. General Information 1. This feature allows a printed page (rear or bottom feed, continuous form) to be torn off without wasting paper or adjusting the printer.

  • Page 141: Forms Tear Off

    3.3.08 Forms Tear Off 3.3.08 Forms Tear Off NOTE: Tear is activated by pressing TEAR. It is a manual procedure. FORMS TEAR OFF is activated by changing a setting in the Menu. It is an automatic procedure. General Information 1. This feature allows a printed page (rear or bottom feed, continuous form) to be torn off without wasting paper or adjusting the printer.
  • Page 142 3. The paper will retract to the Top of Form position. 4. Release TEAR. 5. The paper advances to the tear bar position. ML590/591 ( 96-02-07 )
  • Page 143 3.4 Cleaning CLEANING An accumulation of paper dust is the most frequent cause of print quality problems in a dot matrix printer. Small pieces of paper can cause paper jams. A dirty platen will smudge paper. It is important to clean the printer regularly, paying particular attention to the printhead area and the paper paths.

  • Page 144: Cleaning Schedule

    3.4.02 Cleaning Schedule 3.4.02 Cleaning Schedule Routine inspection and cleaning should be performed: every six months or every 300 hours of operating time. ML590/591 ( 96-02-07 )

  • Page 145: Cleaning Tools

    3.4.03 Cleaning Tools 3.4.03 Cleaning Tools Clean, soft, lint-free cloth All-purpose cleaner Vacuum cleaner Platen cleaner ML590/591 ( 96-02-07 )

  • Page 146: Areas To Be Cleaned

    3.4.04 Areas to be Cleaned 3.4.04 Areas to be Cleaned Area Procedure Cleaning Tool(s) Carriage shaft 3.2.25 Cloth and All-purpose cleaner Area around 3.2.25 Vacuum Cloth and carriage shaft All-purpose cleaner Space Rack 3.2.13 Vacuum Paper Paths Vacuum Cloth and All-purpose cleaner Platen 3.2.19...
  • Page 147 3.5 Lubrication LUBRICATION 3.5.01 General Information If the lubrication procedures are not performed properly, the printer will require more frequent cleaning. Excessive lubricant attracts dust and accumulations build up quickly. An accumulation of paper dust is the most frequent cause of print quality problems in a dot matrix printer. 3.5.02 Lubrication Schedule Routine inspection and lubricating should be performed: once a year or every 600 hours of operating time.
  • Page 148 Contact between Bias Gear and 3.2.19 Small Platen Gear Bearing of Change Lever 3.2.23 Grease Medium Bearing and Pivot Point of 3.2.23 Grease Medium Change Lever Pivot Point of Release Cam 3.2.24 Grease Medium Holders on Pressure Spring 3.2.24 Grease Medium Bearing of Front Release Gear 3.2.24...

  • Page 149: Shipping Instructions

    When shipping the printer, use the original packaging to prevent damage. Be sure to secure the printhead so it will not move during shipment. 1. Locate the original packaging or order replacement packaging from Okidata. (Refer to Appendix B){ 2. Make sure the printhead is secured so it will not move during shipment.

  • Page 150: Troubleshooting Tips - Preliminary Checks

    2. Does the paper being used meet the specifications for this product? 3. Has the ribbon been replaced as recommended? 4. Has the ribbon been installed properly? 5. Is an Okidata ribbon being used? 6. Is the printhead gap correctly set? 7. Is the firmware the latest (current) revision? 8.

  • Page 151: Problem Categories

    4.4.02 Problem Categories 4.4.02 Problem Categories There are three categories of problems that you might encounter when servicing the printer. ALARM Lamp Blinks (Fatal Errors) The following can cause the ALARM lamp to blink. Open Bail Arm Jammed Paper Printhead Cannot Move Other Fatal Error 1.

  • Page 152: Start Here Flowchart

    4.4.03 Start Here Flowchart 4.4.03 START HERE Flowchart START Power ON the unit. Does the printer initialize? Is the ALARM Lamp Blinking? Refer to RAP 01 { Refer to Section 4.6 of the Service Handbook { Load the printer with paper. Does the paper load without jamming? Refer to Rap 04.{ Perform the Rolling ASCII test.

  • Page 153: Tips For Preventing Image Problems

    4.4.04 Tips for Preventing Image Problems 4.4.04 Tips for Preventing Image Problems Make sure that the ribbon is not "dried out". If the printer output is faded, install a new ribbon, then print another sample. Make sure that the paper you are using is within specifications. Paper specifications can be found in Section 1 of this Service Handbook { ML590/591 ( 96-02-07 )

  • Page 154: Common Problems

    4.4.05 Common Problems 4.4.05 Common Problems 1. Nothing happens when the unit is powered on. The unit may not be plugged in. Check the power cord connection to the outlet and to the printer. If a power strip is being used, make sure that it is powered ON. Check to be sure that an external fuse hasn't blown or that a circuit breaker hasn't tripped.
  • Page 155 8. There are vertical spacing problems when using continuous forms and Forms Tear Off. The Microline 590/591 does not have a bail arm, so pages do not feed as high as printers with bail arms. The first page does not line up correctly. Enter Menu Mode and disable Form Tear Off.
  • Page 156 11. Word processor files do not print the way the MENU and front panel are set. Before sending a file to the printer, many word processors send either an initialization string or an I-Prime signal to the printer. The initialization string contains codes that reset the printer to a default set of features. Otherwise, the printer might accidentally print using features set for a previous job.

  • Page 157: Abnormal Output & Output Samples

    4.5 Abnormal Output & Output Samples 4.5.01 Output Samples Light Print on the Entire Page Possible Causes: 1. Ribbon is "dried out". Replace the ribbon. 2. Verify that the headgap menu setting is appropriate for the type of paper being used. 3.
  • Page 158 Drifting Margin Possible Causes: 1. Power OFF the printer. Move the carriage assembly. The carriage should move smoothly. If it does not, remove the cause of the binding. 2. Refer to the next section( ) and / or Technical Service Bulletin 3309.{ ML590/591 ( 96-02-07 )

  • Page 159: Left Margin Drifting Problem

    Be sure to test the printer after replacing each part. Carriage: Frame Set Motor: Space Rack: Space Cable: Printhead Board: Main Control 10. If the problem continues, check all assemblies and connections. Then, contact Okidata Technical Information for further assistance. ML590/591 ( 96-02-07 )

  • Page 160: Fault Alarms

    4.6 Fault Alarms FAULT ALARMS 4.6.01 General Information Follow these guidelines when using the Troubleshooting Tables. 1. Record the status (OFF, solidly ON, Flashing) of the Operator Panel LEDs. 2. Go to to the Troubleshooting Table Index (Section 4.6.02) { 3.

  • Page 161: Alarm/Led Display Troubleshooting Table Index

    4.6.02 Alarm/LED Display Troubleshooting Table Index 4.6.02 ALARM/LED Display Troubleshooting Table Index NOTE: Reference Numbers 25 and 26 use identical Operator Panel displays On/F = On - Flashing ALARM UTIL PROP PRES ORATOR MENU Refere TIGE Number On/F On/F On/F On/F On/F On/F...
  • Page 162 On/F On/F On/F On/F ML590/591 ( 96-02-07 )

  • Page 163: Alarm/Led Display Troubleshooting Tables

    4.6.03 Alarm/LED Display Troubleshooting Tables 4.6.03 ALARM/LED Display Troubleshooting Tables Reference Failure Cause Recommended Action Number Description Space Motor Space motor Refer to RAP 02.( Alarm IPT does not occur in specified time Printhead Printhead Refer to RAP 03.( Detection does not home Alarm Printhead A/D...
  • Page 164 MPU Internal Read/write Replace the main RAM Alarm error control board Program ROM Checksum Replace the ROM and / Alarm error or main control board. RAM on Main Read/write Replace the main Control Board error control board CG ROM Alarm Checksum Replace the main error...
  • Page 165 Cut Sheet Jam Cut sheet Remove the paper check could not be the feed mechanism fed properly Press SEL Printhead Printhead Wait until the Thermal Alarm temperature printhead cools. The exceeds 115 printer should resume degrees printing. If the problem persists replace the printhead replace the main board Space Motor...

  • Page 166: Repair Analysis Procedures (Raps)

    4.7 Repair Analysis Procedures (RAPs) ML590/ML591 REPAIR ANALYSIS PROCEDURES (RAPs) RAP Number Description No Power Supplied to Printer ( No Spacing Operation ( Printhead Homing Error ( Paper Jam During Paper Loading ( Printhead Not Firing Pins ( Poor Print Quality ( Ribbon Feed Problem ( Line Feed Problem ( Operator Panel Malfunction (...

  • Page 167: Using The Raps

    4.7.01 Using the RAPs 4.7.01 Using the RAPs When using the Repair Analysis Procedures, follow these steps. 1. Go to the RAP Index. 2. Find the RAP which is associated with the printer's problem. 3. Go to the appropriate RAP. 4.

  • Page 168: Rap Index

    4.7.02 RAP Index 4.7.02 RAP Index RAP Number Description No Power Supplied to Printer ( No Spacing Operation ( Printhead Homing Error ( Paper Jam During Paper Loading ( Printhead Not Firing Pins ( Poor Print Quality ( Ribbon Feed Problem ( Line Feed Problem ( Operator Panel Malfunction ( Parallel Interface Problem (...

  • Page 169: Rap 01 No Power Supplied To Printer

    RAP 01 No Power Supplied to Printer RAP 01 No Power Supplied to Printer START The printer does not power On when the AC switch is turned ON. Check the AC cable. Is it correctly connected? Check the fuse on the power supply board and F1 of the main control board. Are they open? Go to A.
  • Page 170 Has the problem been resolved? Replace the printhead. Has the problem been resolved? End of procedure. Go to B. Replace the following in the order listed below. Check operation before replacing next item in list. 1.Ribbon Feed Mechanism. 2.Carriage Cable. 3.Main Control Board 4.PROM 05CA Has the problem been resolved?

  • Page 171: Rap 02 No Spacing Operation

    RAP 02 No Spacing Operation RAP 02 No Spacing Operation START The alarm LED blinks. Is the carriage assembly binding or jammed? Make sure the carriage cable is properly connected to the space motor assembly and CN7 on the main control board. Go to A.
  • Page 172 Replace the ribbon feed mechanism Has the problem been resolved? End of procedure. Replace the PROM (O5CA) Has the problem been resolved? End of procedure. Contact Technical Support. ML590/591 ( 96-02-07 )

  • Page 173: Rap 03 Printhead Homing Error

    RAP 03 Printhead Homing Error RAP 03 Printhead Homing Error START Printhead does not return to the home position. Make sure the carriage cable is properly connected to the space motor assembly and CN8 on the main control board. Make sure the power connector cable is properly connected to CN3 on the main control board. Does the space motor assembly move manually? Remove the space motor assembly and inspect the space motor and space rack for dirt and worn teeth.
  • Page 174 Replace the space motor assembly. Has the problem been resolved? End of procedure. Contact Technical Support. ML590/591 ( 96-02-07 )

  • Page 175: Rap 04 Paper Jam During Paper Loading

    Check the front pressure springs to see that they are mounted properly. There are three springs in the Microline 590 and five springs in the Microline 591. Check the tension of all the front pressure rollers to see if they are the same. Top springs: 250 g.

  • Page 176: Rap 05 Printhead Pins Not Firing

    RAP 05 Printhead Pins Not Firing RAP 05 Printhead Pins Not Firing START Missing dots on output. Verify that the printhead gap is set correctly. Ensure the carriage cable is making firm contact with CN7 on the main control board and the space motor assembly.

  • Page 177: Rap 06 Poor Print Quality

    RAP 06 Poor Print Quality RAP 06 Poor Print Quality START Is the print head gap properly set? Go to A Go to B Replace the printhead Has the problem been resolved? End of procedure. Go to C. Replace the main control board. Has the problem been resolved? End of procedure.

  • Page 178: Rap 07 Ribbon Feed Problem

    RAP 07 Ribbon Feed Problem RAP 07 Ribbon Feed Problem START The ribbon feed does not function properly. 1. Verify that both ends of the carriage cable are connected correctly. 2. Make sure the ribbon shield is fastened properly. 3. Remove the ribbon cartridge. 4.

  • Page 179: Rap 08 Line Feed Problem

    RAP 08 Line Feed Problem RAP 08Line Feed Problem START No line feed operation. Make sure that the line feed cable is properly connected to the line feed motor and CN5 of the main control board. Power OFF the printer. Manually rotate the platen. Does the platen rotate smoothly? Go to A Is the left platen gear broken?
  • Page 180 End of procedure. Contact Technical Support. ML590/591 ( 96-02-07 )

  • Page 181: Rap 09 Operation Panel Malfunction

    RAP 09 Operation Panel Malfunction RAP 09 Operation Panel Malfunction START The operation panel does not function properly. Do the operation panel LEDs light when power is applied? Make sure the cable from CN1 of the operation panel is properly connected to CN7 on the main control board.

  • Page 182: Rap 10 Parallel Interface Problem

    RAP 10 Parallel Interface Problem RAP 10 Parallel Interface Problem START No parallel port communication. Is the SEL LED blinking? The printer is in the Print Suppress mode. Disable the menu item Print Suppress if the function is not required. End of procedure.
  • Page 183 Replace the main control board. Has the problem been resolved? End of procedure. Contact Technical Support. ML590/591 ( 96-02-07 )

  • Page 184: Rap 11 Serial Interface Problem

    RAP 11 Serial Interface Problem RAP 11 Serial Interface Problem START. Are you using a cable with proper number of pins? Change the interface cable. Has the problem been resolved? End of procedure Go to A Is the ALARM LED blinking? Refer to Section 4.6 of the Service Handbook.
  • Page 185 Has the problem been resolved? End of procedure. Replace the RS232C board. Are + 8 vdc / - 8 vdc present on the main control board? Replace the RS232C board. Has the problem been resolved? End of procedure. Contact Technical Support. Replace the main control board.

  • Page 186: Printer Tests

    Printer Tests PRINTER TESTS 4.8.01 General Information This section covers the tests listed below. 1. Rolling ASCII Test 2. Font Test 3. Serial Interface Loopback Test 4. Hexadecimal Dump Mode 5. The Rolling ASCII and Font Tests check print operations. 6.

  • Page 187: Rolling Ascii Test

    At the top of the test is the printer type (1), emulation (2), country (3), and firmware revision level (4). This information is often required while performing service or when contacting Okidata. Have this test available during your service call.

  • Page 188: Font Test

    At the top of the test is the printer type (1), emulation (2), country (3), and firmware revision level (4). This information is often required while performing service or when contacting Okidata. Have this test available during your service call.

  • Page 189: Serial Interface Loopback Test

    4.8.04 Serial Interface Loopback Test 4.8.04 Serial Interface Loopback Test NOTE: In order to run this test, the serial interface board must be installed with a serial loopback test connector attached to it. To perform the serial interface loopback test, follow these steps. Place the printer in the Serial Diagnostic mode.

  • Page 190: Serial Cable Information

    Serial Cable Information Serial Cable Information The information in this section will help you make a serial cable to connect between the printer and computer. Refer to the computer documentation to determine the cable requirements on the computers end. The printer has the following cable requirements. Shielded, RS-232C cable UL and CSA approved No more than 50 feet long...

  • Page 191: Commonly Used Serial Cable Configurations

    Commonly Used Serial Cable Configurations Commonly Used Serial Cable Configurations IBM 25-Pin Cable Configuration IBM 9-Pin Cable Configuration ML590/591 ( 96-02-07 )

  • Page 192: Hexadecimal Dump Mode

    4.8.05 Hexadecimal Dump Mode 4.8.05 Hexadecimal Dump Mode General Information The hexadecimal dump mode allows you to view the data sent from a computer to the printer. When the printer is in hex dump mode, all data received (both printable characters and control codes) will be printed in both hexadecimal and ASCII format.

  • Page 193: Resistance Checks

    4.9 Resistance Checks RESISTANCE CHECKS 4.9.01 General Description The charts on the following pages provide information needed to determine if the printhead and motors used in the printer are defective. NOTE: The printhead coil resistance values ARE NOT LISTED. The individual printwire control lines CANNOT be accessed on this printhead. ML590/591 ( 96-02-07 )
  • Page 194 4.9.02 Printhead Interconnect Diagram: Control Board to Printhead 4.9.02 Printhead Interconnect Diagram: Control Board to Printhead NOTE: The printhead coil resistance values ARE NOT LISTED. The individual printwire control lines CANNOT be accessed on this printhead. ML590/591 ( 96-02-07 )
  • Page 195 4.9.03 Line Feed Motor Resistance 4.9.03 Line Feed Motor Resistance The resistance of each coil should be approximately 13 ohms. ML590/591 ( 96-02-07 )
  • Page 196 4.9.04 Space Motor Resistance 4.9.04 Space Motor Resistance The resistance of each coil should be approximately 5 ohms. ML590/591 ( 96-02-07 )

  • Page 197: Appendix A General Information

    Appendix A General Information OVERVIEW A.1.01 General Information This section describes the characteristics of the printed circuit boards (PCBs) used in the printer. The following areas are covered. Firmware Fuses Jumpers Sensors Switches Test Points Where an item is not applicable, the word NONE will be listed. ML590/591 ( 96-02-07 )

  • Page 198: Index To Charts

    A.2 Index To Charts INDEX TO CHARTS Description Board Section Designation Main Controller Board AKGI A.2.01( Operator Panel Board LEOP A.2.02( Power Supply Assembly A.2.03( Space Motor PCB A.2.04( RS232-C Serial LXHI A.2.05( Interface Board ML590/591 ( 96-02-07 )

  • Page 199: Interconnect Diagram

    Interconnect Diagram Interconnect Diagram ML590/591 ( 96-02-07 )

  • Page 200: Main Controller Board (Akgi)

    A.2.01 Main Controller Board (AKGI) A.2.01 Main Controller Board (AKGI) Firmware 05C: CG ROM (Character Generator) 05D: EPROM (Printer Control Program) NOTE: If a 4 Mbit Masked ROM is in location 05D, there SHOULD NOT be a ROM in location 05C. However, make sure that jumper SP1 is placed on the A Side.
  • Page 201 ML590/591 ( 96-02-07 )

  • Page 202: Operator Panel Board (Leop)

    A.2.02 Operator Panel Board (LEOP) A.2.02 Operator Panel Board (LEOP) Firmware NONE Fuses NONE Jumpers NONE Sensors NONE Switches SEL: (Select) SHIFT: LF: (Line Feed) FF: (Form Feed) TEAR: PARK: QUIET: PQ: (Print Quality) CP: (Character Pitch) Test Points NONE ML590/591 ( 96-02-07 )
  • Page 203 A.2.03 Power Supply Assembly A.2.03 Power Supply Assembly Firmware NONE Fuses F1: 125/250V 5 amp. (AC LINE Fuse) F2: 125/250V 2.5 amp. (Protects +5 vdc circuit) Jumpers NONE Sensors NONE Switches SW: Power Switch Test Points +5 vdc: (Logic, LED Drive Voltage) CN2 - Pins 5 and 6 - 8 vdc: (Serial Interface Line Voltage) CN2 - Pin 11 +8 vdc: (Serial Interface Line Voltage, Comparator Voltage) CN2 - Pin 10 +12 vdc: (Printhead Analog Voltage)CN2 - Pin 9...

  • Page 204: Space Motor Board

    A.2.04 Space Motor Board A.2.04 Space Motor Board Firmware NONE Fuses NONE Jumpers NONE Sensors SNS2: Encoder Disk Sensor Switches NONE Test Points NONE ML590/591 ( 96-02-07 )

  • Page 205: Rs232-C Serial Interface Board (Lxhi) Option

    A.2.05 RS232-C Serial Interface Board (LXHI) Option A.2.05 RS232-C Serial Interface Board (LXHI) Option Firmware Masked to the MPU: Socket is empty Fuses NONE Jumpers SP1: EPROM Address Select Jumper (position as shown) EPROM is masked to MPU Sensors NONE Switches NONE Test Points...

  • Page 206: Upper Cover Assembly

    B.2.02 Upper Cover Assembly B.2.02 Upper Cover Assembly Item Okidata P/N Oki-J Description Comments Refer Disassembly to B.1.02 Procedure 53066901 Cover: Upper RSPL 590 3.2.06 1PP4094-6501P1 (Narrow) 53067001 Cover: Upper (Wide) RSPL 591 3.2.06 1PP4094-7201P1 51009401 N/A Guide: Sheet RSPL 590 3.2.06...
  • Page 207 53067101 Cover: Access RSPL 590 3.2.06 2PA4094-7381G1 (Narrow) 53067201 Cover: Access (Wide) RSPL 591 3.2.06 2PA4094-7382G1 ML590/591 ( 96-02-07 )

  • Page 208: Printer General Assembly

    B.2.03 Printer General Assembly B.2.03 Printer General Assembly Item Okidata P/N Oki-J Description Comments Refer Disassembly to B.1.02 Procedure 53562601 Knob: Platen (ML 500 RSPL Both 3.2.06 2PP4094-6507P3 Series) 53067301 Cover: (B) for card RSPL Both 3.2.06 2PP4094-6506P2 slot 55937401...
  • Page 209 55937501 PCB: LEOP RSPL Both 3.2.09 4YA4042-1516G1 (Operator. Panel) 53562701 Panel: Operator RSPL Both 3.2.09 3PP4025-3670G1 56412101 Power Supply 120V RSPL 590 3.2.08 4YB4049-1707P1 56412102 N/A Power Supply 120V RSPL 591 3.2.08 56412201 Power Supply Option RSPL 590 3.2.08 4YB4049-1708P1 230-240V 56412202 Power Supply...

  • Page 210: Printer Unit (1 Of 3)

    B.2.04 Printer Unit (1 of 3) B.2.04 Printer Unit (1 of 3) Item Okidata P/N Oki-J Description Comments Refer Disassembly to B.1.02 Procedure 53563101 Frame: Main (Narrow) RSPL 590 3.2.30 3PA4025-3720G1 53563201 Frame: Main (Wide) RSPL 591 3.2.30 3PA4025-3721G1 50804601...
  • Page 211 51228401 Gear: Line Feed Idle RSPL Both 3.2.21 3PB4055-2887P1 51010301 Plate: Left Ground RSPL Both 3.2.16 3PA4025-3387G1 50923001 Spring: Leaf (Narrow) RSPL 590 3.2.26 3PP4025-3320P1 50923101 Spring: Leaf (Wide) RSPL 591 3.2.26 3PP4025-3507P1 53067701 Cam: Adjust RSPL Both 3.2.15 3PP4025-3380P1 53563301 Rack: Space (Narrow) RSPL 590...

  • Page 212: Printer Unit (2 Of 3)

    B.2.05 Printer Unit (2 of 3) B.2.05 Printer Unit (2 of 3) Item Okidata P/N Oki-J Description Comments Refer Disassembly to B.1.02 Procedure 53563101 Frame: Main RSPL 590 3.2.30 3PA4025-3720G1 (Narrow) 53563201 Frame: Main (Wide) RSPL 591 3.2.30 3PA4025-3721G1 51228001...
  • Page 213 50805101 Lever: Change RSPL Both 3.2.23 2PP4025-3354P3 50923201 Spring: Reset RSPL Both 3.2.22 3PP4025-3355P1 51010201 Plate: Right Ground RSPL Both 3.2.17 3PP4025-3386P1 50098301 Platen Assembly RSPL 590 3.2.19 3PA4025-3370G1 (Narrow) 50098302 N/A Platen Assembly RSPL 591 3.2.19 (Wide) 53341501 Roller: Pull Up RSPL 590 3.2.05 3PA4025-3440G2...

  • Page 214: Printer Unit (3 Of 3)

    B.2.06 Printer Unit (3 of 3) B.2.06 Printer Unit (3 of 3) Item Okidata P/N Oki-J Description Comments Refer Disassembly to B.1.02 Procedure 53563101 Frame: Main (Narrow) RSPL 590 3.2.30 3PA4025-3720G1 53563201 Frame: Main (Wide) RSPL 591 3.2.30 3PA4025-3721G1 50922901...
  • Page 215 53341202 Roller: Front Pressure RSPL Both 3.2.28 4PP4025-3327G1 51227801 Shaft: Front Release RSPL 590 3.2.27 3PP4025-3318P1 Gear (Narrow) 51227901 Shaft: Front Release RSPL 591 3.2.27 3PP4025-3505P1 Gear (Wide) 50097301 N/A Pan: Paper (Narrow) RSPL 590 3.2.27 50097401 Pan: Paper (Wide) RSPL 591 3.2.27 1PP4025-3506P2...

  • Page 216: Carriage Assembly

    B.2.07 Carriage Assembly B.2.07 Carriage Assembly Item Okidata P/N Oki-J Description Comments Refer Disassembly to B.1.02 Procedure 50707401 Clamp: Head RSPL Both 3.2.03 3PP4025-3431P1 53562801 Protector: Ribbon RSPL Both 3.2.03 3PP4025-3430P1 51228501 Gear: Case RSPL Both 3.2.04 3PA4025-3406G1 (Assembly) 56729601...
  • Page 217 53343001 Holder: Connector RSPL Both 3.2.11 4PP4025-3433P1 53343101 Holder: Connector RSPL Both 3.2.11 4PP4025-3434P1 56510401 Motor: Space RSPL Both 3.2.11 4YA4025-3250G1 (Assembly) 53343301 Guide: Roller Both 3.2.11 4PA4025-3719G1 Assembly 53341901 Roller: Guide RSPL Both 3.2.11 4PP4025-3398P1 53342001 Holder: Guide Roller RSPL Both 3.2.11 3PP4025-3399P1...
  • Page 218 B.2.08 Options B.2.08 Options Item Okidata P/N Oki-J Description Comments Disassembly Refer to B.1.02 Procedure 70022501 N/A Kit: Single Bin CSF Option 590 Narrow 70022701 N/A Kit: Single Bin CSF Option 591 Wide 70023001 N/A Kit: Pull Tractor Option 590...
  • Page 219 70023101 N/A Kit: Push Tractor Option 591 (Bottom) Wide 52106003 N/A Color Kit (Incl color Option Both ribbon and ribbon shift bracket) 52106002 N/A Ribbon: Color Consumable Both 51709101 Bracket: Ribbon Shift Option RSPL 3PA4025-3581G1 (Color) Both 70023301 N/A Kit: Roll Paper Stand Option 590 70016301 N/A Buffer Expansion...

  • Page 220: Option Parts

    B.2.09 Option Parts B.2.09 Option Parts Item Okidata P/N Oki-J Description Comments Refer Disassembly to B.1.02 Procedure 50097901 N/A Tractor: Pull and Option RSPL Both Bottom Assembly (Right) 50098001 Tractor: Pull and Option RSPL Both 4PA4025-3608G1 Bottom Assembly (Left) 50098501...
  • Page 221 56627501 Cable: CSF Option RSPL Both 3YS4011-5120G1 Cut-Sheet Feeder 51010001 Guide: Front Sheet Option RSPL 590 1PP4053-2570P2 (N) Cut-Sheet Feeder 51010101 Guide: Front Sheet Option RSPL 591 1PP4053-2571P2 (W) Cut-Sheet Feeder 56510501 Motor Pulse Option RSPL Both 3PB4053-2560P1 Cut-Sheet Feeder 53562901 Supporter: Front Option RSPL 590...

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