Service Manual
6-21
Troubleshooting
6
o
✺
o o
✺
o
●
Hex Code 13 No
transfer roll installed.
Check to see if the transfer roll is missing If not, check the
sensor and its wiring harness. Refer to the topic “Switch and
interrupt sensor checks” on page 9-12 in Chapter 9, “Checks
and Adjustments.” Check the transfer roll mark sensors and
transfer roll motor for proper operation.
o
✺
o o
✺
o
●
Hex Code 14 Transfer
roll encoding read failure.
Check the transfer roll sensor and its wiring harness. Refer to
the topic “Switch and interrupt sensor checks” on page 9-12 in
Chapter 9, “Checks and Adjustments.” Check the transfer roll
mark sensors and transfer roll motor for proper operation.
o
✺
✺
o o
o
●
Hex Code 18 Transfer
roll feed timer error.
Check the transfer roll for proper movement; it should
not bind.
Check the transfer roll mark sensors and transfer roll motor
for proper operation. If the “transfer roll timer error” occurs
when the transfer roll is installed, then the transfer roll mark
sensor is defective, or the transfer roll is skewed, or the
transfer roll motor is defective, or there is a problem with the
transfer roll drive system. If none of these is true, the transfer
roll sensor is defective and must be replaced. Refer to the
Chapter 8 topic “Sensors and switches” on page 8-31.
✺
o o o o
o
●
Hex Code 1F Media tray
type unknown.
Ensure that media tray is properly installed. Chck its switch
actuators on the side of the tray.
Ensure that the tray sensors operate properly. Refer to the
switch and sensor tests in Chapter 9, “Checks and
Adjustments.” Refer to the topic “Switch and interrupt sensor
checks” on page 9-12.
✺
o o o o
o
●
Hex Code 20 Out of
media.
Ensure that media is installed in the tray.
Ensure that the paper-empty sensor operates properly. Refer
to the switch and sensor tests in Chapter 9, “Checks and
Adjustments.” Refer to the topic “Switch and interrupt sensor
checks” on page 9-12.
✺
o o o o
✺
●
Hex Code 21 Tray not
installed.
Ensure that the tray is properly installed.
Ensure that the tray-installed sensors operate properly and
are not damaged. Refer to the topic “Switch and interrupt
sensor checks” on page 9-12.
✺
o o o
✺
o
●
Hex Code 22
Paper-eject sensor
failed to turn on.
Check the paper-exit rollers for proper operation.
Check for blockage at the paper-exit sensor or paper tray.
Ensure that the paper-exit sensor operates correctly and is
properly adjusted. Refer to the topic “Switch and interrupt
sensor checks” on page 9-12.
✺
o o o
✺
✺
●
Hex Code 23
Paper-pass error –
lower tray.
If media didn't reach paper-pass sensor 1, check to see if
media was picked from the tray.
Clean the paper-pick rollers in the lower tray assembly. Refer
to Chapter 7.
Ensure that the paper path is clear.
Ensure that the paper-feed motor and gear train operate
smoothly without binding or too much play.
If media reached the paper-pass sensor, ensure that the
paper-pass sensor 1 operates properly. Refer to the topic
“Switch and interrupt sensor checks” on page 9-12.
Ensure that the Lower Tray Assembly is correctly installed
and its door is closed if the printer is picking from the
lower tray.
Table 6-3 Print engine error codes and their meanings (cont'd.)
Code
Meaning
