HP 24SII manual IRQ3

PROBLEM	SYMPTOM	CAUSE	SOLUTION
		of the printer
	HP LaserJet	Serial printer	The HP LaserJet will give this message
	gives "Error 40"	cable or	when its DSR line (Pin 6) goes from
	message	Model 24SII	positive to negative or zero volts. Verify
		DES losing	that Pin 6 on the printer side of the serial
		power during	cable is either connected or jumpered as
		transmission	shown in Appendix A.3. Also verify
		to printer	M24SII's AC power source.
Cannot	Control-T	Cable	Use correct serial cable between PC and
configure	followed by		Model 24SII DES. Check handshaking
Model 24SII	capital C (or F1		lines in TERM program.
DES	in TERM
	program) sent
	in dumb
	terminal mode
	does not invoke
	configuration
	menus
		Port	Match baud rate, word size, stop bits,
		configuration	parity and handshaking lines between
			Model 24SII DES and PC. This can be
			done using TERM program.
		Port selection	Ensure PC COM port is connected to
			configuration port of Model 24SII DES.
		Software	Use dumb terminal or a PC running a
			terminal emulation program (TERM
			supplied by BayTech, or another
			program such as CrossTalk).
Cannot	Port LEDs are	User activity	Wait until current activity between PC
configure	illuminated		and printer is completed. There should
Model 24SII	when trying to		be no red LEDs illuminated when trying
DES	access		to enter the configuration mode.
(continued)	configuration
	mode
		Bad PC COM	Try a different COM port or PC.
		port
		PC serial card	Reconfigure serial card, use a different
		uses IRQ4	serial card, or different terminal
		instead of	emulation program.
		IRQ3
Prints	Missing	Incorrect	Check manual for correct pin-outs
Garbage	Characters	cable type (no	between PC and Model 24SII DES, and
		data flow	between Model 24SII DES and printer.
		control)	Check handshaking. A way to check is
			to force an error condition at the printer
			(i.e. remove paper tray from laser printer
			or turn off-line with power still applied).
			Send print job to printer. If printer LED
			goes off, you can conclude no
			handshaking was done. On serial ports,
			check Model 24SII DES configuration to
			match handshaking (i.e. you must be
			using CTS/DTR or XON/XOFF for both
			Model 24SII DES and printer). Also

￿￿￿