Lexmark C920n User Manual

							Cleaning the LEDs
91
Maintaining the printer
cClose the waste toner arm.
dRepeat steps a through c for each photodeveloper.
Removing and re-inserting the photodevelopers sufficiently cleans the LEDs in most cases. If the problem 
persists, continue with step 3.
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							Cleaning the LEDs
92
Maintaining the printer
3Remove all photodevelopers and toner cartridges.
Warning:Exposing the photodevelopers to light for prolonged periods of time can damage it. Do not expose the 
photodevelopers to light for more than ten minutes. Fingerprints can affect the performance of the 
photodevelopers. Avoid touching the photodevelopers anywhere except the handles.
Warning:The toner inside the toner cartridges can soil clothing. Do not clean clothing soiled with toner in hot 
water; this permanently adheres the toner to the clothing. Use cold water to remove toner that has 
soiled clothing.
4Wipe the glass lenses of all four LED heads with a clean, dry cloth or tissue paper.
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							Closing the top cover
93
Maintaining the printer
5Reinstall all toner cartridges.
CAUTION:Before closing the top cover, make sure everyone is away from the printer and the area under the 
cover is free of hands, clothing, and other items.
6Close the top cover and the front door.
Closing the top cover
CAUTION:Before closing the top cover make, sure everyone is away from the printer and the area under the 
cover is free of hands, clothing, and other items.
1Place both hands on the top cover as shown.
2Press down firmly until the top cover clicks into place.
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							Closing the top cover
94
Maintaining the printer
3Rotate the top cover locking lever to the right.
Note:If you cannot rotate the locking lever, the cover is not fully closed. Open the top cover and press down 
firmly until the top cover clicks into place.
4Close the front door.
CAUTION:An optional drawer weighs 18.5 kg (40.8 Ib.). Have someone help when lifting.
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							Clearing jams
95
8Clearing jams
By carefully selecting print media and loading it properly, you should be able to avoid most paper jams. For more 
information on avoiding paper jams, see Avoiding jams. If jams do occur, follow the steps outlined in this section.
To resolve the paper jam messages, you must clear the entire paper path and then press   to clear the message and 
resume printing. The printer prints a new copy of the page that jammed if Jam Recovery is set to On or Auto; however, the 
Auto setting does not guarantee the page will print.
Identifying jams
When the printer jams, the appropriate jam message will be displayed on the printer operator panel. If you select Show 
Areas on the operator panel, you can view one or more images to help you clear the jam.
See the diagram on page 96 for an overview of the paper path and areas where jams may occur. The path varies 
depending on the paper source and output bins.
200 Paper Jam, 
3 pages jammed
Continue
Show areas A, C, MPF
Show areas
Show A
Show C
Show MPF
1. Remove print 
media; adjust 
width guides.
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							Identifying jam areas
96
Clearing jams
Identifying jam areas
The following illustration shows the path that print media travels through the printer. The path varies depending on the input 
sources you are using. 
200 Paper Jam
Check Areas A,B
241 Paper Jam250 Paper Jam
242 Paper Jam
243 Paper Jam
244 Paper Jam249 Paper Jam
200 Paper Jam
Check Areas C
200 Paper Jam
Check Area F
200 Paper Jam
Check Area E
200 Paper Jam
Check Area D
T 3/T 5
(depending on 
configuration) T 1
T 2
T 3
T 4
200 Paper Jam
Check Area G
200 Paper Jam
Check Area H 200 Paper Jam
Check Area I
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							Understanding jam messages
97
Clearing jams
Understanding jam messages
The following table lists the jam messages that can occur and the action necessary to clear the message. The jam 
message indicates the area where the jam occurred. However, it is best to clear the entire paper path to ensure you have 
cleared all possible jams.
200 Paper Jam  Pages Jammed (Check Areas A-F, T1-5, 
MPF)
This message identifies the areas (A–F, MPF, or T1–T5) you need to check to remove the paper or to clear the message. 
The display alternates between 200 Paper Jam  Pages Jammed and Check Areas A-F., T1-5, MPF:
Note:If there is a paper jam when you turn the printer on, the second line of the 200 Paper Jam message 
is blank. To resolve the message, you must clear all paper from the paper path.
Jam messageJam message
Check Area A Check Area G
Check Area B Check Area H
Check Area C Check Area I
Check Area D Check MP Feeder
Check Area E Check tray [x]
(with 
241-244 Paper Jam message)
Check Area F Check tray [x]
(with 
249 Paper Jam message)
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							200 Paper Jam  Pages Jammed (Check Areas A-F, T1-5, MPF)
98
Clearing jams
Check Area A
This message indicates a paper jam in the transfer belt area. To clear area A:
1Complete the steps to open the top cover.
Note:If you need instructions on how to open the top cover, see Open the top cover.
Warning:Never touch the photodeveloper drum on the underside of the toner cartridge.
Note:The paper may be covered with unfused toner, which can stain garments.
Photodeveloper
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							200 Paper Jam  Pages Jammed (Check Areas A-F, T1-5, MPF)
99
Clearing jams
2Remove any paper on the transfer belt.
If the paper source was the multipurpose feeder, check the area between the multipurpose feeder and the transfer 
belt.
Warning:Do not use any pointed objects to remove the paper. This could cause permanent damage to the 
transfer belt.
Note:If banner paper is jammed in the fuser area, continue with step 2 of the topic “Check Area B”. If 
banner paper is jammed in the transfer belt area but has not entered the fuser, remove the jam by 
rolling up the paper from inside the printer until the entire banner sheet is free.
3Check the fuser area and top cover for additional jams.
If there is no jam in the fuser area or top cover, close the top cover and front door, and then press  . If a jam is 
present, continue with step 2 of the topic “Check Area B”.
Note:If you need instructions on how to close the top cover, see Closing the top cover.
Transfer belt
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							200 Paper Jam  Pages Jammed (Check Areas A-F, T1-5, MPF)
100
Clearing jams
Check Area B
This message indicates a paper jam in the fuser or output roller area. To clear area B:
1Complete the steps to open the top cover.
Note:If you need instructions on how to open the top cover, see Open the top cover.
Warning:Never touch the photodeveloper drum on the underside of the toner cartridge.
The paper may be covered with unfused toner, which can stain garments.
Photodeveloper
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