If the host does not carry out Termination and tries to receive data, the printer sends the printer status. 13.2.6 Termination Termination is the process of returning to Compatibility mode from the Nibble or Byte modes. When performing Termination, the host sets the signals as follows: • IEEE 1284 Active (nSelectln): Low • HostBusy (nAutoFd): High (Event 22) There are two methods of Termination: (1) Termination through a handshake between the host and the printer. (2) Immediate termination. —164

Es ist aus diesem Grund nur eine Halbduplexubertragung moglich. (Weitere Einzelheiten entnehmen Sie bitte “APPENDIX 2. BIDIRECTIONAL PARALLEL INTERFACE”.) — 195 — 6.1.3 Belegung der Anschlu.stifte Der Quelle KompatibilitatsModus Nibble-Modus Byte-Modus 1 Host nStrobe HostClk HostClk 2 Host/Ptr Data0(LSB) Data0(LSB) Data0(LSB) 3 Host/Ptr Data1 Data1 Data1 4 Host/Ptr Data2 Data2 Data2 5 Host/Ptr Data3 Data3 Data3 6 Host/Ptr Data4 Data4 Data4 7 Host/Ptr Data5 Data5 Data5 8 Host/Ptr Data6 Data6 Data

(4) Data Receiving Control When the BUSY signal is LOW, your printer receives data from the host side, but when this signal is HIGH, it cannot receive data. (5) Buffering Data transfer to the input buffer is controlled by the DTR and TD signals. Please refer to 9.3 b) for the DTR signal and 9.3 f) for the TD signal. 29 CITIZEN CBM-710/720/730/750 User’s Manual (6) Electrical Characteristics a) RS-232C Circuit Input (RD) MAX232 or equivalent Mark = (-8V): Stop bit Space = (-8V): Start bit Output

3) Feed the paper out of the printer by pressing the LF switch or p ull it out from the paper exit. 4) Install a new paper roll. (Refer to section 6.4 (1) Installing the paper.) 5) When the line switch is pressed again, the printer enters select (on line) status and printing may be resumed once again. 6.5 Self Print Function Your printer has a built in self print function for the purpose of checking print operation without the need for any other external device. Procedures for Actuating the Self

(Ref. to Chapter 7-2) CITIZEN CBM-710/720/730/750 User’s Manual 1. INTRODUCTION The CBM-710, CBM-720, CBM-730 and CBM-750 are dot impact printers which can be utilized for a wide range of applications, such as data communications terminals, ECR terminals and kitchen printers. High speed performance is made possible by a bidirectional printing system and, since these printers are compact, lightweight and equipped with an abundance of functions, they can be easily employed for a variety of differe

CITIZEN CBM-710/720/730/750 User’s Manual IMPORTANT SAFETY INSTRUCTIONS • Read all of these instructions and save them for future reference. • Follow all warnings and instructions marked on the product. • Unplug this product from the wall outlet before cleaning. Do not use liquid or aerosol cleaners. Use a damp cloth for cleaning. • Do not use this product near water. • Do not place this product on an unstable cart, stand or table. The product may fall, causing serious damage to the product. • S

1001001 -) Conform to the following Standards LVD EMC :EN60950 :EN55022 :1992+A1+A2:1993 :1995 Class B :EN50082-1 :IEC801-2 :IEC801-3 :IEC801-4 :1992 :1991 4KV CD, 8KV AD :1984 3V/m, 27MHz-500MHz :1988 0.5KV (Signal Line) 1KV (AC Mains) Supplementary Information “The product complies with the requirements of the Low Voltage Directive 73/23/EEC, 93/68/EEC and the Directive 89/336/EEC, 91/263/EEC, 92/31/EEC, 93/68/EEC” Place: Tokyo, Japan Signature: Date: April, 1997 Full Name: Mikio Moriya Positi