3-6 Troubleshooting Rev. B
Confidential
PAPER OUT LED lights
Symptoms when the self-test is run
Self-test is not printed
Before running the self-test, make sure the roll paper and ribbon are installed correctly in the
printer. Then turn power off. To run the self-test, turn the power on while holding down the
FEED button. If the test does not print, check the following:
❏ When the POWER LED does not light: Refer to page 3-3.
❏
When the ERROR LED lights: Refer to page 3-3.
❏
When the ERROR LED flashes: Refer to page 3-4.
Table 3-4 PAPER OUT LED is Lit
Probable part/probable cause Checkpoints Action to correct the problem
Roll paper
Check the roll paper. Make sure it is
loaded correctly. Make sure enough
paper is left.
Replace the roll paper. Completed if
the PAPER OUT LED turns off.
Paper end assembly (514)
Check operation of the paper end
assembly (514). Make sure the continuity
changes when you operate the switch.
Replace the paper end assembly
(514). Completed if the PAPER OUT
LED turns off.
Near-end sensor
Check operation of the micro switch
(1039). Make sure the continuity
changes when you operate the switch.
Replace the near-end sensor.
Completed if the PAPER OUT LED
turns off.
Main circuit board unit (201)
Check the parts for damage. Make sure
the following parts look normal.
CN6:for lead wires of the near-end
sensor
CN4:on the HP board assembly
Replace the main circuit board unit
(201). Completed if operation is
normal.
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