MODEL 814M DIRECT THERMAL PRINTER OPERATOR’S MANUAL PART NUMBER 880047-0100 Revised 03/25 JSR © Copyright 2014 by Microcom Corporation, Lewis Center, Ohio – All rights reserved.
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Proprietary Statement This manual contains information proprietary to Microcom Corporation. This information is intended solely for the use of parties operating and maintaining such equipment described herein. The reproduction, disclosure and/or use of such information without the authority of Microcom Corporation to other parties is strongly prohibited. Product Enhancements Microcom Corporation is committed to the continual improvement of performance and quality in our products.
Safety Instructions Before installing and using the printer, please read the following items carefully: • Install the printer on a flat and stable place. • Reserve adequate space around the printer so that the operation and maintenance can be performed conveniently. • Do not use or store the printer in direct sunlight, strong heat, high humidity or dew condensation. • Do not place the printer in a place exposed to vibration or impact. • Connect the DC adapter to an appropriately grounded outlet.
Table of Contents 1 General Description.................................................................Page 3 1.1 1.2 Introduction......................................................................................................3 Main Features .................................................................................................3 2 Specifications...........................................................................Page 4 2.1 2.2 Technical Specifications ..............................
Interface Signal...................................................................... Page 33 6.1 RS-232 Interface........................................................................................... 33 6.1.1 Parameter ............................................................................................... 33 6.1.2 RS-232 Serial Interface Signals.............................................................. 34 6.2 IEEE 1284 Parallel Interface (optional).......................................
1 General Description 1.1 Introduction The 814M is a high performance thermal printer with a cutter and optional presenter. The printer can accept up to 203mm (outer diameter) paper rolls. The maximum print width is 216mm. It is designed to be used in kiosk applications such that require Letter or A4 paper widths.
2 Specifications 2.1 Technical Specifications Parameter Items 203dpi Model Print method 300dpi Model Direct thermal Resolution 203dpi 300dpi Paper Length 210mm-216mm 210mm-216mm Print Width Max - 216mm （8.5 "） Max - 216mm （8.5 "） Max -1728mm Print height Print speed Max: 1000mm, Min: 82.5mm Special mode Max: 1000mm, Min: A4/3 (82.5mm) Max.125mm/s Max.
Parameter Items 203dpi Model 300dpi Model Input voltage AC 120V±5%, 50/60Hz Output voltage DC 24V, 2.5A Paper out speed Paper retracting speed Function modes ≥400mm/s Retraction/Hold/Commands control/close Print head lifetime ≥100Km Reliability Cutter lifetime ≥500,000 (paper thickness: 0.
• Marked paper specification In marked paper mode, the printer determines cut position by referencing black mark position. Marked paper should meet the following requirement besides that of standard paper: − Mark length L1: 20mm ≤ L1 − Mark height L2: 4mm ≤ L2 ≤ 8 mm − Space between adjacent Marks L3: 82.5mm ≤ L3 ≤ 305mm − Mark position on paper: Right, middle or left side on non-thermal sensitive surface of paper.
3 Structure and Functions 3.
3.
Figure 3-5 Dimensions of Vertical Structure 9
Figure 3-6 Dimensions of Horizontal Paper Holder 10
3.3 Printer Mechanism 3.3.1 Printer Mechanism (without paper holder) Figure 3-7 Printer Mechanism (without paper holder) 1 —Print platen 6 —Paper load sensor 11－Reset button 2 —Print head 7 —Cutter 12－Feed button 3 —Paper sensor 8 —Power LED（Green） 13－Cut button 4 —Release Lever 9 —Alert LED（Red） 14－Power switch 5 —Paper guide module 10－Paper end LED（Red） 3.3.2 Printer Mechanism Explanation 1. Print platen (drive roller) 2. Printhead 3. Paper sensor --Detects whether there is paper. 4.
Figure 3-8 Paper Guide Module 6. Paper load sensor --Detects the front edge of paper. 7. Cutter 8. Power LED (Green) --Indicates whether the power is on. 9. Error LED (Red) --This LED is used to indicate the status of the printer. Normally, it isn’t lit. When errors occur (for example, paper end), it will flash. 10. Paper end LED --When the printer is in paper end status, this LED blinks; if paper is available, Paper End LED is off. 11.
3.4 Presenter 3.4.1 Appearance Figure 3-9 Presenter Appearance Figure 3-10 Paper Out Sensor 1.-- Presenter control board 2.-- Presenter module 3.-- Paper path 4.-- Paper out sensor 5.
3.4.2 Presenter Parts Explanation 1. Paper loading sensor –Used to detect paper status. 2. Prsln Sensor (optional) –Used to detect whether paper is retracted. Caution: Paper sensor may be ineffective if exposed to direct sunlight! 3.5 Paper Holder 3.5.1 Paper Holder Appearance Figure 3-12 Horizontal Paper Roll Holder Appearance Figure 3-13 Vertical Paper Roll Holder Appearance 1. --Paper roll shaft 2. --Paper roll support 3. --Paper near end sensor 4. --Paper near end sensor inter-connective socket 5.
3. Paper Roll-Spacer Block − Install paper roll-spacer block on paper holder only when using a 210mm wide paper roll. For 216mm wide paper, remove the paper roll-spacer block. Caution: When you install or remove paper roll-locating block, you should adjust both left and right paper guide modules! 3.6 Interface Figure 3-14 Parallel Interface Model 1.-- Parallel interface (Centronics) 2.-- Serial interface (RS-232) 3.-- Power socket 4.-5.
4 Installation 4.1 Unpacking Open the carton and all packing materials, and verify that all items on the packing list are enclosed. In case of damaged or missing items, please contact your dealer or the manufacturer for assistance. 4.2 Assembling the Printer For safety purpose, the print mechanism and paper holder should be packed separately in transport. Before placing the printer into use, assemble the print mechanism and paper holder according to the following figures.
4.4 Connecting the AC Power Adapter 1. Make sure the printer is turned off. 2. With the flat side of the cable pin of AC adapter facing downward, plug the cable pin into the power interface on the side of the printer. 3. Connect the AC power cable to a nearby electrical outlet. Figure 4-4 Connecting the AC Adapter 4.5 Connecting the Interface Cable 1. Make sure the printer has been shut down. 2.
Figure 4-7 Connecting the Parallel Interface Cable Figure 4-6 Connecting the USB Interface Cable Notes: − When connecting the serial interface cable, do not forget to tighten the retaining screws. For parallel interface cable, make sure to close the clips. − When connecting or disconnecting the interface cable, make sure to hold the plug shell instead of the the cable only. 4.6 Loading Paper Roll Before loading paper, confirm that the paper specifications match the printer’s requirements (see table 2.
2. Insert the paper roll shaft into the core of the paper roll as shown in the following figures: Figure 4-8 Paper Roll - 25mm Figure 4-9 Paper Roll - 50mm 3. Make sure that the paper winding direction is backward and then put the paper roll onto the paper holder. Figure 4-10 Loading Paper Roller 4. Cut the leading edge of the paper neatly (see figure 4-11).
5. Slide the paper guides to appropriate position (210mm or 216mm) according to paper width (see figure 4-12). Figure 4-12 Paper Guide Adjustment 4.6.2 Semi-automatic Paper Loading or Manual Paper Loading • Semi-automatic Paper Loading 1. Turn on the power. The buzzer will beep for paper end. 2. See the figure below, insert the front end of the paper roll smoothly through the paper feeding path and until the platen roller starts running and holds the paper. 3.
Figure 4-14 Paper Loading Explanation 1—Positioning shaft (for horizontal structure only) 2---Paper guides • Manual Paper Loading 1. Turn on the power and the buzzer will alarm paper end. 2. Press down the on the printhead release lever and lift the print head. 3. Manually load paper as shown (see figure 4-15), and make sure that the printing platen roller is fully covered by paper. 4. Close the print head. The printer will automatically feed paper to the correct position.
− While operating and doing routine maintenance, we suggest reserving space around the printer as follows (see figures 4-16, 4-17 and 4-18).
Figure 4-17 Horizontal Structure Figure 4-18 Structure without Paper Holder 23
Notes: − Spaces in above figure include: printer working space, printer routine maintenance and printer operating space. Specifically, printer work space includes paper accommodation and paper backing space. Printer routine maintenance space includes PRE upper cover opening and cutter access. Printer operating space includes paper loading and cable connection space. − The dimensions given in above figures are for reference only.
Figure 4-21 PRE Upper Cover − Paper roll loading space. Make sure to reserve enough space to load the paper roll. − Paper retraction space. The presenter module waits for the user to take the paper away. If the user does not take the paper, the paper backs into a collection bin. A paper retraction outlet should be added to your design if the printer will utilize paper retraction. (Disregard if your printer doesn’t have the paper retraction function.
− Paper roll space Allow space for the paper roll. There is a blue line in the space. If paper feeding is controlled above the blue line, your printer is considered to be horizontal, otherwise, it is vertical. For a horizontal installation, you need to control the paper roll above the space, mainly in order to use the buffer mechanism of the print mechanism to avoid compression. For vertical installation, add a buffer mechanism to the paper holder.
Note this retaining screw Paper outlet upper guide Paper outlet lower guide Figure 4-24 Paper Outlet Explanation − − Upper guide “A” dimension of paper out path should be controlled from 4.5 to 5.5 mm and “C” dimension should be from 4 to 5mm.This is mainly to avoid the interference when the upper cover of PRE uplifts, and also to avoid interference with the retaining screw (M2.5) of the PRE upper cover. Lower guide B dimension of paper out path is controlled to be within 1mm, and D is from 2 to 4mm.
4.8 Installing Printer Driver Serial driver and parallel driver both support System platforms such as WINDOWS XP/Vista/7/8. The USB driver supports System platforms such as WINDOWS XP/Vista/7/8. The current edition of the WINDOWS driver is V1.0. (For setup and use of the driver, please refer to the help document in the drive software package.
5 Routine Maintenance Caution: − Make sure that the power is turned off before starting routine maintenance. − Do not touch the printhead, platen roller, or sensors with sharp objects they may scratch. − Do not clean any components of the printer with strong solvents such as gasoline, acetone, etc. − Use only isopropyl alcohol or other Microcom Corporation approved cleaners on the print head. − Be sure to do follow a monthly maintenance routine (more, if printer use is severe). 5.
To clean the paper sensor, follow the steps below: • Turn off the power and open the upper cover. • Lift the print head to access the paper end sensor (see figure 3-7). • Wipe off dust and stains on the surface of the paper end sensor with a soft cotton cloth dampened with isopropyl alcohol. • Allow isopropyl alcohol to evaporate, press print head module and close upper cover. 5.2.
Figure 5-1 Paper Out Sensor 5.2.4 Paper Retract Sensor The paper retract sensor should be cleaned whenever the following circumstances occur: • Paper fails to retract and printer does not signal retract failure. • Paper retracts, but printer signals retract failure. To clean the paper end sensor, follow the steps below: • Turn off the power and turn the printer over. • Locate the paper retract sensor (see figure 5-2).
5.3 Cleaning Printing Platen When any of the following case occurs, the sensor should be cleaned: • Print out is not clear. • Some columns on the page are not clear. • Paper feed is not smooth through the print head / platen roller area. To clean printing platen, follow the steps given below: • Turn off the power, open the top cover of the printer. • Wait for a few minutes until print head cools down if the printer has just finished printing.
5.5 Manual Removal of the Jammed Paper When any of the errors occurs, please remove jammed paper manually: • Paper jams between platen roller and cutter holder. • Paper accumulates at the paper inlet of the cutter in the front of the print head. • The cutter cannot cut off paper. Remove jammed paper in the following steps: • Open the upper cover. • Pull out the jammed paper. • Manually reset cutter if necessary.
6.1.2 RS-232 Serial Interface Signals Printer serial port signals and status are described in the following table: Signal name PIN NO Signal direction function 1 NO 2 RXD input Data input end 3 TXD output Data output end 4 DTR output Data terminal is ready 5 SG — Signal ground 6 DSR input Data device is ready 7 RTS output Request to send 8 CTS input Allow to send 9 FG — Frame Ground Table 6-1 Serial Interface Signals 6.2 IEEE 1284 Parallel Interface (optional) 6.2.
6.2.3 Parallel Interface Signals Pin No.
6.2.4 Time Sequence of Data Receiving Figure 6-1 Time Sequence of Parallel Interface Data Receiving Signal Time Demands: Signal Min(ms) Max(ms) Setup 0.75 - Ready 0 - Stb 0.75 500 Busy 0 2.5 Hold 0.75 - Table 6-4 Parallel Interface Signal Timings 6.
6.3.1 Power Interface This connector is used to connect the printer with an external power supply. Power connector pins: PIN Signal name 1 +24V 2 GND 3 NC SHELL F.G. Figure 6-3 Power Supply Pins Table 6-5 Power Pin Explanation 7 Troubleshooting and Maintenance 7.1 Common Errors and Settlement 7.1.1 Problems during Paper Loading Problem Possible reasons How to settle Paper roll cannot be loaded into paper holder. The paper roll width and diameter do not meet the requirements of the printer .
7.1.2 Problems during Printing Problems Possible reasons How to deal with The receipt cannot be ejected out smoothly. Paper jams. Open upper cover and presenter upper cover, check paper path, remove wastepaper and reload paper automatically. Printout is not clear The thermal paper is loaded in wrong direction or of poor quality. Make sure the paper roll is loaded correctly. Cutter works abnormally Print head needs cleaning. Use recommended paper or its equivalents. Printing darkness is too low.
7.1.4 Other Problems Problem No power LED and printer does not work. The printer does not work after receiving commands. Possible reasons How to deal with The printer is not connected to the power supply correctly. Connect the printer to the power supply correctly. The printer isn’t turned on. Turn on the printer. Printer is in error status. Remove all errors (*). The communication cable is not connected well. Make sure the communication cable is connected correctly.
Appendix Self-test Page Print self-test page in the following steps: • Turn off the printer power. • Hold the feed button for at least one second while turning on the power. The printer will start to print a self-test page. Take the 203 dpi, Serial + USB interface model as an example. The self-test paper is shown as follows: ***MICROCOM814M-3 TEST FORM*** Boot Firmware Main Firmware :FV2.010 :FV2.
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