Konica Minolta bizhub 4750 bizhub 4750/4050 Maintenance/Troubleshooting User G - Page 19

3.1

To prevent a paper jam

3

[Maintenance/Troubleshooting]

3-2

3

Clearing Paper Jam and Staple Jam

3.1

To prevent a paper jam

To prevent a paper jam, check the following points.

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Do the paper match the specifications of this machine?

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Is the paper (in particular, the feeding side) even?

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Is this machine installed on a stable and horizontal location that has a hard and even surface?

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Is the paper kept away from humid conditions?

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Do you always align the paper guide to the paper size after loading paper into a tray? (If the paper guide

is not aligned to the paper size, it may reduce printing quality, cause a paper jam, or damage the ma-

chine. )

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Is the paper loaded into a tray with the required side facing upward? (The arrow indicating the print side

of paper may be shown on the packing label of paper. )

To prevent a paper jam, avoid the following actions.

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Do not load paper that is folded, creased, embossed, or bent into a tray.

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Do not load jammed paper into a tray more than once.

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Do not load a stack of paper into a tray. (When a stack of paper is fed, remove it from the tray once,

then flip through the paper to separate sheets.) )

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Do not load paper of different types, sizes, or weights together into a tray.

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Do not load a quantity of paper that exceeds the maximum capacity of the paper tray in the tray.

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Do not leave a quantity of paper that exceeds the maximum capacity of the paper tray. (Up to 250

sheets can be output from the output tray. If 250 or more sheets are left in the tray, it will cause a paper

jam.)

Section	Page
Table of contents	2
1 Cleaning This Machine	5
1.1 Before getting started	5
1.2 Cleaning the outside of this machine	7
Control Panel	7
Exhaust Air Duct	7
Outer Covers	7
Original Glass	8
Original Cover Pad	8
2 Checking and Replacing Consumables	10
2.1 Checking the status of consumables	10
Consumables replacement messages	10
Checking the consumable level	10
2.2 Replacing consumables	11
2.2.1 Replacing a Toner Cartridge	11
Handling a Toner Cartridge	11
Storing Toner Cartridges	11
Replacement procedure	12
2.2.2 Replacing an Imaging Unit	13
2.2.3 Replacing a Staple Kit	15
3 Clearing Paper Jam and Staple Jam	19
3.1 To prevent a paper jam	19
3.2 When a paper jam has occurred	20
3.2.1 Clearing a paper jam in the Manual Feed Tray	20
3.2.2 Clearing a paper jam in Tray 1	21
3.2.3 Clearing a paper jam in Tray 2/3/4	22
3.2.4 Clearing a paper jam in ADF	23
3.2.5 Clearing a paper jam in the Front Cover	23
3.2.6 Clearing a paper jam in the Rear Cover	26
3.2.7 Clearing a paper jam in the Output Tray	27
3.2.8 Clearing a paper jam in the outlet of the Finisher	27
3.2.9 Clearing a paper jam in the rear of the Finisher	28
3.3 Troubleshooting for paper jam	30
3.4 Clearing a staple jam	32
4 Troubleshooting	35
4.1 The power is not turned on	35
4.2 The Touch Panel is not displayed	36
4.3 Cannot print	37
4.3.1 Cannot print	37
4.3.2 Problems on print quality	40
4.3.3 When the bit count does not match between the server and the client	41
4.4 Cannot perform network scanning	43
4.5 Cannot perform fax/internet fax	44
4.5.1 Cannot perform Fax TX	44
4.5.2 Cannot perform Fax RX	45
4.6 Cannot perform copy	46
4.7 Major messages and actions	48
Warning messages	48
Error messages	48
Service call	51
5 Checking the Counter	53

Konica Minolta bizhub 4750 bizhub 4750/4050 Maintenance/Troubleshooting User G - Page 19

Clearing Paper Jam and Staple Jam, 3.1 To prevent a paper jam

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