T.E.S.T.C.O.P.Y.

54.0X.15
Toner level sensor error occurred.
• 54.00.15 — Black
• 54.01.15 — Cyan
• 54.02.15 — Magenta
• 54.03.15 — Yellow
Recommended action
1. Turn the printer off, and then on.
2. Check the “Smart Chip” located on the toner cartridge to make sure it is installed
correctly and is not loose.
3. Remove all the cartridges and the ITB, inspect the inside for toner scatter, and then clean
the areas with a toner cloth.
4. Vacuum the inside of the printer, especially the back of the printer where the sensors for
the cartridges are located.
5. Test the cartridge sensors in the back of the printer.
6. Check the “Light Pipe” at the toner cartridge and the drum cartridge for excessive toner
contamination. If excessive toner contamination is observed or blocking, check for one of
the following root causes:
1. Make sure the internal seal at either the drum or the toner cartridge has been
removed.
2. Make sure the toner gates are not out of synchronization.
7. If the error persists, replace the toner cartridge or drum cartridge at the same time.
o Black toner drum part number: CF358A
o Cyan toner drum part number: CF359A
o Yellow toner drum part number: CF364A
o Magenta toner drum part number: CF365A
o Black toner cartridge part number (M855): CF310A
o Cyan toner cartridge part number (M855): CF311A
o Yellow toner cartridge part number (M855): CF312A
o Magenta toner cartridge part number (M855): CF313A
o Black toner cartridge part number (M880): CF300A
o Cyan toner cartridge part number (M880): CF301A
o Yellow toner cartridge part number (M880): CF302A
o Magenta toner cartridge part number (M880): CF303A
8. Check the following connectors on the memory tag PCA and make sure the FFCs are not
bent or missing a metal connection:
o Y/M Connectors (J402 and J401)
o C/K Connectors (J403 and J401)
9. If the error persists, replace the memory tag PCA and the cartridge PCA interface.
Memory tag PCA part number: RM2-7009-000CN
Cartridge PCA interface part number: A2W79-67902
10. If the error persists, replace the DC controller.
For instructions: See the Repair Service Manual for this product.
M855 part number: RM2-7005-000CN
M880 part number: RM2-7006-000CN