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Konica Minolta bizhub 20 bizhub 20 User Guide - Page 131

Examples of poor print, Black toner marks across - drum replacement

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Examples of poor print quality ABCDEFGH abcdefghijk ABCD abcde 01234 Black toner marks across the page ABCDEFGH abcdefghijk ABCD abcde 01234 Recommendation  Make sure that you use paper that meets our specifications. (See Acceptable paper and other print media on page 12.)  If you use label sheets for laser machines, the glue from the sheets may sometimes stick to the OPC drum surface. Clean the drum unit.  Do not use paper that has clips or staples because they will scratch the surface of the drum.  If the unpacked drum unit is in direct sunlight or room light, the unit may be damaged.  The toner cartridge may be damaged. Put in a new toner cartridge. (See Replacing a toner cartridge on page 143.)  The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 145.)  Clean the laser scanner window and the corona wire inside the drum unit. (See Cleaning the laser scanner window on page 138 and Cleaning the corona wire on page 140.)  The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 145.) Line across the page ABCDEFGH abcdefghijk ABCD abcde 01234 Black lines down the page Printed pages have toner stains down the page  Clean the corona wire inside the drum unit by sliding the blue tab. Be sure to return the blue tab to the home position (a). (See Cleaning the corona wire on page 140.)  The toner cartridge may be damaged. Put in a new toner cartridge. (See Replacing a toner cartridge on page 143.)  The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 145.)  The fuser unit may be smudged. Call your KONICA MINOLTA dealer for service. 122

Section	Page
Approval Information and Compilation and Publication Notice	2
APPROVAL INFORMATION	2
Compilation and Publication Notice	2
Table of Contents	3
Section I General	10
1 General information	11
Using the documentation	11
Symbols and conventions used in the documentation	11
Control panel overview	12
Status LED indications	15
2 Loading paper and documents	17
Loading paper and print media	17
Loading paper in the standard paper tray	17
Loading paper in the multi-purpose tray (MP tray)	18
Unprintable area	20
Acceptable paper and other print media	21
Recommended paper and print media	21
Type and size of paper	21
Handling and using special paper	23
Loading documents	26
Using the automatic document feeder (ADF)	26
Using the scanner glass	27
3 General Setup	28
Mode Timer	28
Paper settings	28
Paper Type	28
Paper Size	29
Tray Use in copy mode	30
Tray Use in fax mode	30
Tray Use in print mode	31
Volume settings	31
Ring volume	31
Beeper volume	31
Speaker volume	32
Automatic daylight savings time	32
Ecology features	33
Toner Save	33
Sleep Time	33
Turning off the scanner lamp	33
LCD Contrast	33
4 Security features	34
Secure Function Lock 2.0	34
Setting the password for the administrator	34
Changing the password for the administrator	35
Setting up the public user mode	35
Setting up restricted users	36
Turning Secure Function Lock on/off	36
Switching Users	37
Setting Lock	37
Setting up the password	37
Changing your Setting Lock password	38
Turning Setting Lock on/off	38
Restricting dialling	38
Dial pad restriction	38
One Touch restriction	38
Speed Dial restriction	39
LDAP server restriction	39
Section II Fax	40
5 Sending a fax	41
How to fax	41
Entering fax mode	41
Sending a single-sided fax from the ADF	41
Sending a 2-sided fax from the ADF	41
Sending a fax from the scanner glass	42
Faxing Letter/Legal/Folio size documents from the scanner glass	43
Cancelling a fax in progress	43
Broadcasting	43
Cancelling a Broadcast in progress	44
Additional sending operations	44
Sending faxes using multiple settings	44
Electronic cover page	45
Contrast	46
Changing Fax Resolution	46
Dual access	47
Real Time Transmission	47
Overseas Mode	47
Delayed Fax	48
Delayed batch transmission	48
Checking and cancelling waiting jobs	48
Sending a fax manually	48
Out of memory message	49
6 Receiving a fax	50
Receive modes	50
Choosing the Receive Mode	50
Using receive modes	51
Fax Only	51
Fax/Tel	51
Manual	51
External TAD	51
Receive Mode settings	52
Ring Delay	52
F/T Ring Time (Fax/Tel mode only)	52
Fax Detect	53
Setting the Print Density	53
Additional receiving operations	54
Printing a reduced incoming fax	54
Duplex (2-sided) printing for Fax mode	54
Setting the Fax Receive Stamp	54
Receiving faxes into memory	54
Printing a fax from the memory	55
Out of Paper Reception	55
7 Telephone and external devices	56
Telephone line services	56
Setting the telephone line type	56
BT Call Sign (U.K. only)	57
Connecting an external TAD	57
Connections	58
Recording an outgoing message (OGM)	58
Multi-line connections (PBX)	58
External and extension telephones	59
Operation from extension telephones	59
For Fax/Tel mode only	59
Connecting an external or extension telephone	60
Using a non-KONICA MINOLTA cordless external handset	61
Using Remote Codes	61
8 Dialling and storing numbers	62
How to dial	62
Manual dialling	62
One touch Dialling	62
Speed dialling	62
Search	63
LDAP search	63
Fax redial	63
Storing numbers	64
Storing a pause	64
Storing One Touch Dial numbers	64
Storing Speed Dial numbers	65
Changing One Touch and Speed Dial numbers	66
Setting up Groups for Broadcasting	67
Combining quick dial numbers	68
Tone or Pulse	68
9 Remote Fax Options	69
Fax Forwarding	69
Fax Storage	70
PC Fax Receive	70
Changing Remote Fax Options	71
Turning off Remote Fax Options	72
Remote retrieval	72
Setting a Remote Access Code	72
Using your Remote Access Code	73
Retrieving fax messages	73
Changing the Fax Forwarding number	74
Remote fax commands	75
10 Polling	76
Polling receive	76
Secure polling	76
Delayed polling	76
Sequential polling	77
Polled transmit	77
Setup for polled transmit	77
Setup for polled transmit with a secure code	78
11 Printing reports	79
Fax reports	79
Transmission verification report	79
Fax Journal	80
Reports	80
How to print a report	80
Section III Copy	82
12 Making copies	83
How to copy	83
Entering copy mode	83
Making a single copy	83
Making multiple copies	83
Stop copying	83
Copy options (temporary settings)	84
Enlarging or reducing the image copied	84
Improving copy quality	85
Sorting copies using the ADF	85
Changing text copy resolution	85
Adjusting Contrast and Brightness	86
Making N in 1 copies (page layout)	87
Duplex (2-sided) copying	88
Duplex Copy (long edge flip)	88
Advanced Duplex Copy (short edge flip)	89
Tray selection	90
Out of memory message	91
Section IV Direct printing	92
13 Printing data from a USB Flash memory drive or a digital camera supporting mass storage	93
Supported file formats	93
Creating a PRN or PostScript® 3™ file for direct printing	93
Printing data directly from the USB Flash memory drive or a digital camera supporting mass storage	94
Understanding the error messages	96
Section V Software	98
14 Software and Network features	99
Section VI Appendixes	100
A Safety and legal	101
Choosing a location	101
To use the machine safely	102
Important safety instructions	106
Standard telephone and FCC notices	108
Industry Canada Compliance Statement (Canada only)	110
Laser safety	111
FDA regulations	111
IEC60825-1:2007 Specification	112
Disconnect device	112
Wiring information (U.K. only)	112
LAN connection	113
Radio interference	113
EU Directive 2002/96/EC and EN50419	113
EU Directive 2006/66/EC - Removing or Replacing the Battery	113
International ENERGY STAR® Compliance Statement	114
Libtiff Copyright and License	115
Trademarks	116
B Options	117
Optional paper tray (PF-P10)	117
Memory board	117
Installing extra memory	118
C Troubleshooting and routine maintenance	119
Troubleshooting	119
If you are having difficulty with your machine	119
Improving the print quality	126
Setting Dial Tone detection	133
Telephone line interference	133
Error and maintenance messages	134
Transferring your faxes or Fax Journal report	138
Document jams	139
Paper jams	140
Routine maintenance	146
Cleaning the outside of the machine	146
Cleaning the scanner	147
Cleaning the laser scanner window	147
Cleaning the corona wire	149
Replacing the consumable items	151
Replacing a toner cartridge	152
Replacing the drum unit	154
Replacing periodic maintenance parts	157
Machine Information	157
Checking the Serial Number	157
Checking the Page Counters	157
Checking the remaining life of parts	157
Reset	158
How to Reset	158
Packing and shipping the machine	159
D Menu and features	161
On-screen programming	161
Menu table	161
Memory storage	161
Menu keys	161
How to access the menu mode	162
Menu table	163
Entering text	179
E Specifications	181
General	181
Print media	183
Fax	185
Copy	186
Scan	187
Print	188
Interfaces	189
Direct Print feature	189
Computer requirements	190
Consumable items	192
Ethernet wired network	193
F Glossary	194