2 - 8
Chapter 2 Troubleshooting
Paper Characteristics
The following paper characteristics affect print quality and reliability. It recommends that you follow
these guidelines when evaluating new paper stock.
Weight
The tray automatically feeds paper weights from 60 g/m
2
to 216 g/m
2
(16 lb to 80 lb bond) grain long.
The single sheet feeder automatically feeds paper weights from 60 g/m
2
to 216 g/m
2
(16 lb to 80 lb
bond) grain long. Paper lighter than 60 g/m
2
(16 lb) may not feed properly, and could cause paper jams.
For best performance, use 75 g/m
2
(20 lb bond) grain long paper.
Curl
Curl is the tendency of print media to curve at its edges. Excessive curl can cause paper feeding
problems. Curl usually occurs after the paper passes through the printer, where it is exposed to high
temperatures. Storing paper unwrapped, even in the paper tray, can contribute to paper curling prior to
printing and cause feeding problems regardless of humidity. When printing on curled paper, straighten
the paper and then insert it into the single sheet feeder.
Smoothness
The degree of paper smoothness directly affects the print quality. If the paper is too rough, the toner does
not fuse on to the paper properly, resulting in poor print quality. If the paper is too smooth, it can cause
paper feeding problems. Smoothness between 150 and 250 Sheffield points produces the best print
quality.
Moisture Content
The amount of moisture in the paper affects both the print quality and the ability of the printer to feed
the paper properly. Leave the paper in its original packaging until you are ready to use it. This limits the
exposure of the paper to moisture changes that can degrade its performance.
Grain Direction
Grain refers to the alignment of the paper fibers in a sheet of paper. Grain is either grain long, running
the length of the paper, or grain short, running the width of the paper. For 60 g/m
2
to 135 g/m
2
(16 lb to
36 lb bond) paper, grain long fibers are recommended. For paper heavier than 135 g/m
2
(36 lb bond),
grain short is preferred.
Fiber Content
Most high-quality xerographic paper is made from 100% chemically pulped wood. Paper containing
fibers such as cotton may lead to degraded paper handling.
Recommended Paper
To ensure the best print quality and feed reliability, use 75 g/m
2
(20 lb) xerographic paper. Business
paper designed for general business use also provides acceptable print quality. Only use paper able to
withstand high temperatures without discoloring, bleeding, or releasing hazardous emissions. The laser
printing process heats paper to high temperatures. Check with the manufacturer or vendor to determine
whether the paper you have chosen is acceptable for laser printers.
It is recommended that you perform trial print before purchasing large quantities of print media. When
choosing any print media, you should consider the weight, fiber content, and color.
Unusable Paper
The following paper types are not recommended for use with the printer.
1) Chemically treated papers used to make copies without carbon paper, also known as carbonless
papers, carbonless copy paper (CCP), or no carbon required (NCR) paper
2) Preprinted papers with chemicals that may contaminate the printer
3) Preprinted papers that can be affected by the temperature in the printer fusing unit
Содержание DocuPrint CM305 df
Страница 1: ...DocuPrint CM305 df Service Manual 1st Edition ...
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Страница 4: ...Company Name Department Name Telephone No Full Name Employee No ...
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Страница 7: ...Preface ...
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Страница 15: ...Chapter 1 Service Call Procedure ...
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Страница 28: ...1 10 Chapter 1 Service Call Procedure Blank Page ...
Страница 29: ...Chapter 2 Troubleshooting ...
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Страница 218: ...2 184 Chapter 2 Troubleshooting Blank Page ...
Страница 219: ...Chapter 3 Image Quality Troubleshooting ...
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Страница 271: ...Chapter 4 Disassembly Assembly and Adjustments ...
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Страница 289: ...4 13 Chapter 4 Disassembly Assembly and Adjustments 9 Remove the COVER POLE IN AIO from the printer ...
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Страница 299: ...4 23 Chapter 4 Disassembly Assembly and Adjustments 8 Remove the COVER WINDOW TNR AIO from the COVER SIDE R AIO ...
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Страница 329: ...4 53 Chapter 4 Disassembly Assembly and Adjustments Replacement 1 Insert the CASSETTE ASSY 250 MG AIO into the printer ...
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Страница 379: ...4 103 Chapter 4 Disassembly Assembly and Adjustments 26 Disengage the connector P J234 of the SENSOR PHOTO CST NO PAPER ...
Страница 384: ...4 108 Chapter 4 Disassembly Assembly and Adjustments 13 Remove the SPRING ACT SSI from the ACTUATOR SSI ...
Страница 409: ...4 133 Chapter 4 Disassembly Assembly and Adjustments 3 Push the BLOCK STOPPER PHD D to the printer until it is locked ...
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Страница 415: ...4 139 Chapter 4 Disassembly Assembly and Adjustments 8 Disengage the connector P J141 of the LED ASSY ERASE ...
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Страница 445: ...4 169 Chapter 4 Disassembly Assembly and Adjustments 4 Remove the TONER CARTRIDGE from the HOLDER ASSY TCRU ...
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Страница 465: ...4 189 Chapter 4 Disassembly Assembly and Adjustments 3 Engage the connecter P J221 of the DRIVE ASSY SUB ...
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Страница 484: ...4 208 Chapter 4 Disassembly Assembly and Adjustments 13 Remove the PWBA ESS AIO from the printer ...
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Страница 489: ...4 213 Chapter 4 Disassembly Assembly and Adjustments 8 Engage all the connectors of the PWBA ESS AIO ...
Страница 491: ...4 215 Chapter 4 Disassembly Assembly and Adjustments 4 Remove the MEMORY CARD ...
Страница 493: ...4 217 Chapter 4 Disassembly Assembly and Adjustments 4 Shift the COVER ASSY ESS to front side secure the SCREW KNURLING ...
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Страница 511: ...4 235 Chapter 4 Disassembly Assembly and Adjustments 10 Remove the PWBA LVPS from the printer ...
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Страница 547: ...4 271 Chapter 4 Disassembly Assembly and Adjustments 6 Remove the COUNTER BALANCE R from the ADF ASSY ...
Страница 569: ...4 293 Chapter 4 Disassembly Assembly and Adjustments 9 Remove the ROLLER ASSY DUP from the FEEDER ASSY DUP AIO STD ...
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Страница 593: ...Chapter 5 Parts List ...
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Страница 643: ...Chapter 6 General ...
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Страница 652: ...6 6 Chapter 6 General Front view Side view 320mm 250mm 100mm MiA08008GA MiA08009GA 600mm Front Cover 320mm 100mm ...
Страница 660: ...6 14 Chapter 6 General Chart Parallelism Perpendicularity ...
Страница 661: ...6 15 Chapter 6 General Skew Linearity Magnification Error Registration ...
Страница 663: ...6 17 Chapter 6 General 6 1 8 Option Users can install the following unit Option 250 Sheet Feeder Expansion memory 512MB ...
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Страница 789: ...7 11 Chapter 7 Wiring Data 7 3 BSD Undescribed ...
Страница 807: ...7 29 Chapter 7 Wiring Data Signal line name Description TR MON HV DO HV LD HV CLK MAIN CLK Control signal of the HVPS ...
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Страница 823: ...Chapter 9 Installation and Removal ...
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Страница 837: ...Chapter 10 Machine Overview ...
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Страница 877: ...10 37 Chapter 10 Machine Overview Name of moving parts Takeaway Roll Exit Roll Feed Roll Nudger Roll ...