3-154 Xerox Internal Use Only Phaser 6500/WorkCentre 6505 Service Manual
Error Messages and Codes
IOT Toner (YMCK) CRUM Comm Error
Applicable Error Codes Code
• 093-925 / 093-950 / 093-951 / 093-952
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Toner Cartridge (Y) (PL5.1.24)
■ Toner Cartridge (M) (PL5.1.23)
■ Toner Cartridge (C) (PL5.1.22)
■ Toner Cartridge (K) (PL5.1.21)
■ CRUM Connector (PL5.1.14)
■ MCU Board (SFP PL8.2.13; MFP
PL8.3.6)
■ Toner CRUM Harness Assy
(PL5.1.26)
■ “Map 1 - SFP Print Engine” on
page 10-6
■ “Map 4 - SFP MCU Board” on
page 10-9
■ “Map 6 - MFP Print Engine” on
page 10-15
■ “Map 9 - MFP MCU Board and HVPS”
on page 10-18
■ “SFP Xerographics” on page 10-30
■ “SFP Toner Dispenser” on page 10-32
■ “MFP Xerographics” on page 10-43
■ “MFP Toner Dispenser” on page 10-45
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Reseat the Toner Cartridge (Y, M, C or
K).
Does the error still occur when the
power is turned Off and On?
Go to step 2. Complete.
2 Check the connections between the
MCU Board and CRUM Connector (Y,
M, C or K).
Are P/J31 and P/J311(Y) / P/J312 (M) /
P/J313(C) / P/J314 (K) seated
securely?
Go to step 4. Reseat the
connector(s)
securely, then
go to step 3.
3 Does the error still occur when the
power is turned Off and On?
Go to step 4. Complete.
4 Check the Toner CRUM Harness Assy
for continuity.
Disconnect P/J11 from the MCU
Board.
Disconnect P/J311(Y) / P/J312 (M) / P/
J313(C) / P/J314 (K) from the CRUM
Connector (YMCK).
Is each cable of P/J31 <=> P/J311(Y) /
P/J312 (M) / P/ J313(C) / P/J314 (K)
continuous?
Go to step 5. Replace the
Toner CRUM
Harness Assy.
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