Craden Peripherals DP8 Diagnostic Flowchart, Use this flow chart to assist in troubleshooting

5.6.13Diagnostic Flowchart

Use this flow chart to assist in troubleshooting.

Is the display on the printer blank?

No Yes

Do the keys on the keypad work?

See 3.2 for functions and exercise

Yes keys No

Will the printer take a document when it is placed into the machine?

Yes No

Does the carriage move when printer

should be printing? Open cabinet and override cover open sensor

	using 99 FUNCT (3.5.3)
Yes		No

Does the printer print? Insert paper

	and press 900 FUNCT on the
		keypad (3.7)
Yes			No

Is the printed output smearing?

No		Yes
	Is the printed output too light?
No		Yes

Do the rollers run continuously, even

when paper is not in the printer?

No			Yes
	Is the printed output spaced
		correctly?
Yes			No

Does the printer communicate with

the system when you send a
	transaction?
End		No

•Power switch is ON

•Power cord plugged in both ends

•Contrast knob adjusted (3.3)

•Power outlet is live

•Is the keypad locked? (3.5.3)

•Press EJECT & CLEAR and try again

•Insert paper, press A↑ key (see printer parameter, DOCUMENT INSERT, 3.5.1)

•Check sensors (5.6.4)

•Carriage Fault on display? Foam packing removed?

•Insert paper, press A↑ key (see printer parameter, BEGIN PRINTING, 3.5.1)

•Ribbon correctly installed? (2.1)

•Ribbon shield installed correctly? (5.4.1.1)

•Remove ribbon, check for jammed cartridge

•Check that ribbon knob turns as carriage moves

•Ribbon correctly installed? Ribbon worn out? (2.1)

•Ribbon shield installed correctly? (5.4.1.1)

•Document too thick? (1.2)

•Printing in non-printable area of a document or passbook? (1.2)

•Ribbon correctly installed? Ribbon worn out? (2.1)

•Remove ribbon, check for jammed cartridge

•Ribbon shield installed correctly? (5.4.1.1)

•Quiet mode set to Y? Darkness set too low? (3.5.1, 3.5.4)

•Does the ribbon knob turn as carriage moves?

•Ribbon guide plate pushed up completely? (5.4.1.1)

•Paper dust or debris inside printer. (5.1.3)

•Blow out debris with compressed air.

•Multisensor cable seated correctly? (5.1.3)

•Characters per inch setting OK? (see printer parameter, LINES/INCH, 3.5.1)

•Check all service parameters. (3.5.4)

•Check interface cable mounting (pg. 44)

•Communication parameters match host system? (3.5.2)

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