Toner Cartridge Set Failure; Tray 1 Media Size Failure - Lexmark W840 Service Manual

Step
4 • Perform a print test.
• Does the error continue?

Toner cartridge set failure

Step
1 Checking the toner cartridge for correct installation.
Open the printer front door assembly. Is the toner cartridge
installed properly?
2 Checking the toner cartridge. Is the toner cartridge
damaged?
3 Checking the toner cartridge guide assembly. Remove the
top cover assembly. Is the toner cartridge guide assembly
damaged?
4 Checking the sensor (RFID toner cartridge). Is the above
sensor attached and connected properly?
5 Perform a print test.
Does the error still occur?

Tray 1 media size failure

Step
1 Check the media.
Pull out media tray 1 to visually check it.
Is media loaded in media tray 1 properly?
Check
Check
Check
Yes
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-120.
Yes
Go to step 2. Reinstall the toner
cartridge properly.
Go to Go to
"Toner cartridge
guide assembly
removal" on
page
Replace the toner Go to step 3
cartridge.
Go to "Toner
cartridge guide
assembly
removal" on
page 4-95.
Replace the toner Go to step 4
cartridge
Go to "Toner
cartridge guide
assembly
removal" on
page 4-95.
Replace the Go to step 5
sensor (RFID
toner cartridge).
Replace the Problem solved.
printer engine card
assembly
Go to "Printer
engine card
assembly
removal" on
page 4-120
Yes
Go to step 2. Load media
properly.
Diagnostic information
4024-XXX
No
No
4-95.
No
2-75