MODEL AS142 Impact Printer Instruction Manual

Transcription

1 Ohaus Corporation 29 Hanover Road Florham Park NJ MODEL AS142 Impact Printer Instruction Manual

2 NOTE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES. THESE LIMITS ARE DESIGNED TO PROVIDE REASABLE PROTECTI AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERAT- ED IN A COMMERCIAL ENVIRMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTI MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIS. HOWEVER, THERE IS NO GUARANTEE THAT INTERFERENCE WILL NOT OCCUR IN A PARTICULAR INSTALLATI. IF THIS EQUIPMENT DOES CAUSE HARMFUL INTERFERENCE TO RADIO OR TELEVISI RECEPTI, WHICH CAN BE DETERMINED BY TURNING THE EQUIPMENT OFF AND, THE USER IS ENCOURAGED TO TRY TO CORRECT THE INTERFER- ENCE BY E OR MORE OF THE FOLLOWING MEASURES: -REORIENT OR RELOCATE THE RECEIVING ANTENNA. -INCREASE THE SEPARATI BETWEEN THE EQUIPMENT AND RECEIVER. -CNECT THE EQUIPMENT INTO AN OUTLET A CIRCUIT DIFFERENT FROM THAT TO WHICH THE RECEIVER IS CNECTED. -CSULT THE DEALER OR AN EXPERIENCED RADIO/TV TECHNICIAN FOR HELP. Unauthorized changes or modifications to this equipment are not permitted. 2

3 TABLE OF CTENTS INTRODUCTI... 4 DESCRIPTI... 4 UNPACKING... 5 INSTALLATI... 5 Environment... 5 Controls... 5 OPERATI Indicators and Switches Operation... 6 Self-Test Mode... 6 On/Off Mode... 6 Baud rate Selection... 7 Parity Selection... 7 Serial Interface Connection... 8 Ribbon Cassette Loading... 8 Loading Paper CARE AND MAINTENANCE SERVICE INFORMATI SPECIFICATIS PARTS INFORMATI REPLACEMENT PARTS ACCESSORIES LIMITED WARRANTY

4 INTRODUCTI This manual covers installation and operation for the Ohaus Model AS142 lmpact Printer. To insure proper operation of the printer, please read this manual completely. DESCRIPTI The Ohaus Model AS142 Impact Printer, is a dot-matrix microprinter which can interface directly to various Ohaus Balances which contain an RS232 lnterface connector. The printer can be used with Ohaus Balances Models AP, AS, GT, TP, TS, CT, MB200, I5, I10, I20W, Explorer and Voyager. The printer interface is serial, RS232 compatible. Internal DIP switches can be set to baud rates from 150 to Additional internal switches are used to set parity and handshaking. There are two LED lamps, Power and SEL indicators, and two push button switches, SEL select on/ off line and LF line feed switch. The printer utilizes an impact dot matrix head in a 5 x 7 format with 42 characters per line, and can print one line per second. Ribbon life is 10,000 lines. Printing paper width is 2.25 /5.7cm. Power is supplied through an AC Adapter which is included and provides 9 volts dc, 1 A to the printer. 4

5 UNPACKING Your AS142 was shipped with the following items: AC power adapter Instruction manual A paper roll and a ribbon are loaded inside the printer before packing. It is recommended to save the carton and packing material for storing, transporting the balance or returning it for service. INSTALLATI Environment The printer should always be used in an environment which is free from corrosives, vibration, and temperature or humidity extremes. Controls The controls, indicators and connectors of the model AS142 impact printer are shown in the illustration below. CAUTI: 5

6 OPERATI Indicators and Switches Operation There are two indicators and two button switches on the panel of the printer. The power indicator is labeled P. The other is the SEL indicator. A button switch is labeled SEL for selecting /OFF. Another is labeled LF for paper line feeding. See illustration below for controls and indicators. P SEL LF SEL Indicators and Switches The SEL button can change the SEL indicator s staus. When the SEL indicator is, the printer is. The printer working mode can be changed with button SEL and LF among three modes - self-test, on/off and paper feed. Self-Test Mode Self-Test checks the condition of the printer. If the printer prints out the Self-Test sample correctly, the printer is working normally. If Self-Test is wrong, the printer or power supply needs repairing. Self-Test prints out all characters in the fonts, then prints the messages about the interface type. 1. To enter the Self-Test mode with the printer OFF, press LF button then press SEL button. Release both buttons. The printer will enter Self-Test mode. NOTE: There are two ways to exit the self-test mode as follows: 1. The printer will exit self-test automatically after finishing the self-test sample print out. 2. When the self test sample is being printed, it can be terminated by pressing the SEL button. The printer will exit the self-test mode. On\Off Mode After applying power to the printer or being in the Self-Test mode, the printer enters On mode and the SEL indicator lights up. Press the SEL button, SEL indicator light turns off. Printer enters the Off mode. When the printer is in Off mode, it can not receive data. Press SEL again. Printer re-enters the On mode. 6

7 On\Off Mode (Cont.) SEL has another function, to interrupt the printout. If SEL is pressed and then released during a printout, the printer will stop after completing the current line. At this point, you can load more paper. To complete the printout, press and release SEL button. The printer will run again at the point the printout was interrupted. Baud Rate Selection The baud rate of serial interface can be selected as 150, 300, 600, 2400, 4800 or 9600bps. It can be set with internal DIP switches as required. To set the baud rate, take off the removable cover and the upper case of the printer. You can see the DIP switch in the upper right comer of the printed circuit board. Baud rate can be selected as shown in the Baud Rate Selection table. The switch near the white mark is Sl. The factory setting is Sl, S2 OFF, S3 OFF. The baud rate is 9600 bps. Parity Selection Parity Check can be set with S4 - S6 DIP switches as shown in the Parity Selection Table. These are set at NO Parity exfactory, S4, S5, S6. PARITY SELECTI TABLE DIP SWITCH PARITY 8-N BAUD RATE SELECTI TABLE DIP SWITCH B.P.S ODD EVEN N ODD EVEN

8 Serial Interface Connection The 25 pin connector is located on the back of the printer. The serial interface is standard RS232C compatible. PIN SIGNALS OF SERIAL INTERFACE TABLE Pin No. Signal 2 R x D 3 T x D 5 DTR 7 GND 8 CTS The operation procedure of the serial interface is shown as follows: 1. Select baud rate with DIP switches Sl-S3. 2. Select parity with DIP switches S4-S6. Ribbon Cassette - Loading A ribbon cassette has been put inside of the printer before packing. When the printing becomes lighter after long use, put in a new ribbon as follows: 1. Push forward the removable cover plate with both thumbs. (Note the arrow on the cover plate). Then take off the cover plate carefully. Correct Action 8

9 2. Hold the left end of the ribbon cassefte with your left hand. Hold right end in right hand. Right thumb is on top and forefinger below. Lift the right end of the cassette with the end of the cassette with the right forefinger, then lift the left end. The ribbon cassette will come off easily. Incorrect Action - Wrong Direction CAUTI Never lift the left end first. This may damage ribbon and printer head. 3.Take a new ribbon. Hold the cassette as in step 2. Put the left end on the axle of the gear on the left end of the printer head. Keep the right end of the cassette up as shown in the illustration. Ribbon Cassette Unloading Keep right end of cassette up If is difficult to push the left end down, raise it again. Hold the cassette with right hand, then rotate slightly as indicated. See arrow on the cassette cover. 9 Turn the gear as indicated by the arrow

10 Secure the cassette on the printer head. The procedure may be repeated several times until it is easy to push the left end of the cassette onto the axle of the gear. Then, press down on the right end of the cassette with the right thumb as shown in the illustration. Press down the right end with thumb Sometimes, the cassette is put in correctly, but part of the ribbon rides up over the printer head. This may be cause by two reasons: 1. The paper has been loaded before the ribbon. Remove paper and try again. 2. The ribbon is a used one. Re-place with a new cassette. 4. Install the removable cover plate. Place the plate on the guide slot. Push into place as gently as shown in the illustration. Cover plate installation 10

11 Loading Paper 1. The removable cover plate must be taken off for loading paper. 2.Cut the paper roll as shown. The paper roll may be placed inside or outside of the printer case. When the paper roll is placed inside, the end should be underneath as shown in the illustration. Cut the Paper roll Correct Paper Roll Loading, End is Underneath Wrong Paper Roll Loading When the paper roll is placed outside, the end should enter the case through the slot on the back of the printer. Align the end of the roll with the printer head as shown. 3.Connect the AC Adapter to the printer and plug it in to a power source. Aligning the end of the roll with the printer head 11

12 Loading Paper (Cont.) 4. The SEL (Select) button is an /OFF toggle. Press to OFF, the SEL indicator will go off. Then, press LF (Line Feed) button and release it, the printer head begins to run. Feed in paper. The paper enters the printer head and comes out from the top of theprinter head. To stop paper feeding, press and release LF or SEL button. 5. Unplug the AC Adapter. 6. Feed the paper through the slot on the removable cover plate, then, push the plate back on the printer as before. 12

13 CARE AND MAINTENANCE To keep the Printer operating properly, the housing should be kept clean and free from foreign material. The following maintenance procedures and precautions should be followed: 1. Do not dismantle the printer head, 2. Do not leave power on when not in use for a long period. 3. Switch off, if printer does not not work normally. 4. Power supply must match the AC Adapter power requirements. 5. Do not lubricate the printer head. 6. Fluff and dust from paper are harmful to the printer head. Check and clear the head when replacing the paper roll. 7. When replacing the ribbon, do not press the cassette too hard, otherwise, the plastic wheel may be damaged. 8. Never use ribbon oil, it may damage the printer head. 13

14 SERVICE INFORMATI If you cannot resolve problems with the printer, you will need to contact an authorized Ohaus Service Agent. For Service assistance in the United States, please call Ohaus Corporation toll-free at (800) An Ohaus Product Service Specialist will be available to help you. SPECIFICATIS MODEL AS142 Impact Printer General Specifications: Interface: Serial (RS232 Compatible) Printer Method: Impact Dot Matrix (Inked Ribbon) Character Format: 5 x 7 Dot Matrix Character Dimension: (in/cm) 0.04 x 0.10/.11 x.26 Character Density: 42 Characters per line Printing Speed: 1 line per second Paper Width: (in/cm) 2.25/5.7 Power: AC adapter (110/120, 220 Vac) 50/60Hz Operating Temp. 32 to 104F /0 C to 40 C Dimensions: (in/cm) (WxHxD) 6.3 x 1.6 x 4.2/16 x 4 x 10.6 Weight (lb/kg) 0.77/0.35 (with internal paper roll) Interface Specifications: Connector: 25 Pin D type (Female) Baud Rate: Selectable (150, 300, 600, 1200, 2400, 4800, 9600) Data Bit: 7 or 8 Parity: Even, odd or none Stop Bit: 1 or 2 PARTS INFORMATI If you require replacement parts or would like to purchase accessories, please call Ohaus Corporation toll-free at (800) An Ohaus Product Parts Specialist will be available to help you. 14

15 REPLACEMENT PARTS Description OHAUS Part No. AC Adapter: 110/120 V ac V ac Ribbon: Paper (5 pack) ACCESSORIES Description OHAUS Part No. Interface Cables: Connects AS 142 Impact Printer to AP, AS (with RS232), GT, TP, TS (with RS232), CT (with RS232), MB200 and I5 Connects AS142 impact Printer to I10 and I20W AS AS LIMITED WARRANTY Ohaus products are warranted against defects in materials and workmanship from the date of delivery through the duration of the warranty period. During the warranty period Ohaus will repair, or, at its option, replace any component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to Ohaus. This warranty does not apply if the product has been damaged by accident or misuse, exposed to radioactive or corrosive materials, has foreign material penetrating to the inside of the product, or as a result of service or modification by other than Ohaus. In lieu of a properly returned warranty registration card, the warranty period shall begin on the date of shipment to the authorized dealer. No other express or implied warranty is given by Ohaus Corporation. Ohaus Corporation shall not be liable for any consequential damages. As warranty legislation differs from state to state and country to country, please contact Ohaus or your local Ohaus dealer for further details. 15

16 Ohaus Corporation 29 Hanover Road, Florham Park, NJ 07932, USA Tel: (973) , Fax: (973) With offices worldwide. P/N Ohaus Corporation 1996, all rights reserved. 16