Toshiba e-STUDIO5540C Service Manual page 289

8.4.12 Troubleshooting for abnormal sound from fuser unit
If creaking sound is heard from the fuser unit, check if grease is applied on the tooth face of the gears
and to the shafts of the fuser unit and fuser drive unit.
Since the one-way clutch is pressed into the gear (GEAR-8H40-FMR), do not apply grease on
the shaft.
8.4.13 "Authentication Failed" is displayed
• Reset the service password
Reset the service password by accessing [USER FUNCTIONS] -> [ADMIN] -> [GENERAL] ->
[PASSWORD SETUP] -> [RESET SERVICE PASSWORD].
• Initialize the SRAM
Refer to  P. 9-35"9.2.6 Precautions and Procedures when replacing SRAM board (for SYS
board)", and perform "[D] Initialize SRAM system storage area" and following steps.
• Replace the SRAM board
Refer to  P. 9-35"9.2.6 Precautions and Procedures when replacing SRAM board (for SYS
board)", and replace the SRAM board.
8.4.14 Hard disk full error "H04" is displayed
Preform the following, referring to  P. 9-25"9.2.3 Precautions and procedures when replacing the
HDD"
• Back up the user data
(1) [A] Back up data in HDD
(2) [B] Print out "FUNCTION LIST FOR MAINTENANCE"
(3) [C] Print out "FUNCTION" list
• Initialize the HDD
(4) [E] Replace / Format HDD
Step 2 for replacing the HDD is unnecessary.
• Restore the user data
(5) [F] Reset user's setting items and restore data/information.
(6) [G] Reset "FUNCTION LIST FOR MAINTENANCE"
(7) [H] Reset "FUNCTION" list
• Adjust image quality
(8) [I] Adjust image quality
8.4.15 When the First copy time / First print output time (for black) in the
MFP with 55 cpm exceeds approx. 5.3 sec.
1. Perform the following since the First copy time / First print output time (for black) may become lower
than the specified value due to the energy saving function.
- Change the time interval to enter the energy saving mode and sleep mode.
- Set to "0: Disabled" for the energy saving mode (08-5469).
2. Check if there are any abnormalities in the following parts.
- Temperature/humidity sensor
- Fuser belt thermopile
- Pressure roller thermistor (center/rear)
- IH coil
- IH board
- LGC board
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
ERROR CODE and TROUBLESHOOTING
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