94
Phaser 740 and 740L Laser Printers
4

Troubleshooting

Error codes

If the printer’s front panel displays a message Error XX, find the error code in this

table and follow the instructions for resolving the problem.

Error User Corrective Action
Error 01 Remove and re-install black Toner Cartridge, then turn the printer
off and on.
Replace black Toner Cartridge, then turn the printer off and on.
If problem persists, check www2.tek.com/merlin/tko and/or
contact Service.
Error 02 Remove and re-install cyan Toner Cartridge, then turn the printer
off and on.
Replace cyan Toner Cartridge, then turn the printer off and on.
If problem persists, check www2.tek.com/merlin/tko and/or
contact Service.
Error 03 Remove and re-install magenta Toner Cartridge, then turn the
printer off and on.
Replace magenta Toner Cartridge, then turn the printer off and on.
If problem persists, check www2.tek.com/merlin/tko and/or
contact Service.
Error 04 Remove and re-install yellow T oner Cartridge, then turn the printer
off and on.
Replace yellow Toner Cartridge, then turn the printer off and on.
If problem persists, check www2.tek.com/merlin/tko and/or
contact Service.
Error 05, 10, 11,
12, and 13 Turn the printer power off, then on.
If problem persists, check www2.tek.com/merlin/tko and/or
contact Service.
Error 20 Remove and re-install Imaging Unit (make sure that Imaging Unit
is locked in place). Turn the printer off, then on.
Remove and re-install Main Charge Grid. Turn the printer off, then
on.
Remove and re-install Transfer Kit. Turn the printer off, then on.
Remove and re-install each of the Toner Cartridges. Turn the
printer off, then on.
Replace Main Charge Grid. Turn the printer off, then on.
Replace Imaging Unit (make sure that Imaging Unit is locked in
place). Turn the printer off, then on.
Replace Transfer Kit. Turn the printer off, then on.
Replace the Toner Cartridges. Turn the printer off, then on.
If problem persists, check www2.tek.com/merlin/tko and/or
contact Service.