Lexmark C710 Technical Reference - Page 347
Table 8-1, Parallel Connector Pin Assignments, not exceed 3.04 m 10 ft
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8-9 Interfaces • To prevent line noise, the cables should be shielded and connected to the chassis of both the computer and the printer. The parallel cable length should not exceed 3.04 m (10 ft), unless a Lexmark 6.1 m (20 ft) parallel cable is used. Table 8-1: Parallel Connector Pin Assignments Pin IEEE 1284-B Connector IEEE 1284-C Connector Signal Direction Description 1 15 STROBE* In Inverted logic: signal is active when low The computer generates this signal to allow the printer to read in data. The signal level is normally high: data is sampled at the falling edge of this pulse. 2-9 6-13 DATA0 through DATA7 In/Out These signals represent data bits 0 to 7, respectively. Each signal is at a high level when data is logical 1, and low when data is logical 0. Pin 2 is the least significant bit. Note: Data is driven out only when the printer is in IEEE 1284 Byte or ECP modes. 10 3 ACKNLG* Out This negative pulse indicates the printer can again accept data. Inverted logic: signal is active when low 11 1 BUSY Out A high signal indicates the printer cannot receive data. The signal is high: • During initialization • During data sampling • When the buffer is full • In the not ready state • During a printer error A low signal indicates the printer is not busy and the computer can again send data. 12 5 PE Out Paper Exception signal indicates no paper is loaded, a paper jam exists, or a paper feed error occurred. 13 2 SLCT Out Select signal indicates the printer is selected and is online. This signal is normally active. It becomes inactive when the printer is offline. 14 17 AUTO FEED XT* In Host Busy when Advanced Status is On. Inverted logic: signal is active when low. 15-17 N/A LOGIC GROUND Logic Ground N/A means non-applicable.