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Chapter 9
9-9
9.3
Various Control Mechanisms
9.3.1
Controlling the Speed of the Fixing Roller
9.3.1.1
Controlling the Speed According to Paper Type
0003-2889
The machine controls the fixing roller to any of 3 speeds according to paper yep.
T-9-4
9.3.1.2
Controlling the Speed for Large Volume Printing (downsequence)
0003-2890
If the main thermistor (THM1) of the machine's fixing roller identifies the surface temperature of the fixing roller as
being any of the following, the machine starts downsequence, in which distance between sheets is increased to
decrease the speed of printing, thereby preventing poor fixing otherwise caused by drops in the roller temperature
when continuous printing is under way.
The speed of printing is relatively low in color mode and, therefore, the temperature of the fixing roller rarely drops,
thus not calling for downsequence.
The following is a table of control mechanisms used for downsequence prepared according to site environments and
paper types; the notations within the table indicate the following:
LV: downsequence level
deg C: temperature of the fixing roller triggering downsequence
PPM: printing speed
Toner fixing starts to fail when the temperature of the fixing roller drops to level 4 or below. The machine, therefore,
stops (suspends) printing when it detects a level 4 condition; it then starts (resumes) printing using the speed it used
at the start when the temperature of the fixing roller returns to the recovery level.
If the room temperature is less than 20 deg C and heavy paper or a transparency is used, the machine reduces its print
speed (except when heavy paper 1 is used for the 120V or 230V model).
Paper type
Fixing speed
Mono color print
plain paper
normal speed (276 mm/sec)
heavy paper, transparency, postcard
normal speed (276 mm/sec)
Color print
plain paper (64 to 105 g/m2)
normal speed (276 mm/sec)
heavy paper (106 to 163 g/m2), postcard
2/3 speed (184 mm/sec)
heavy paper 2 (164 to 209 g/m2), heavy paper 3
(210 to 250 g/m2), transparency
1/3 speed (92 mm/sec)
Содержание iR C6800 Series
Страница 1: ...Apr 6 2004 Service Manual iR C6800 Series iR C6800C ...
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Страница 21: ...Chapter 1 Introduction ...
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Страница 55: ...Chapter 2 Installation ...
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Страница 110: ...Chapter 2 2 52 2 Hook the original holder 1 on the stepped screws you fitted in step 1 F 2 157 1 ...
Страница 115: ...Chapter 3 Basic Operation ...
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Страница 129: ...Chapter 4 Main Controller ...
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Страница 178: ...Chapter 4 4 46 ...
Страница 179: ...Chapter 5 Original Exposure System ...
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Страница 234: ...Chapter 5 5 52 ...
Страница 235: ...Chapter 6 Laser Exposure ...
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Страница 257: ...Chapter 7 Image Formation ...
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Страница 562: ...Chapter 7 7 296 ...
Страница 563: ...Chapter 8 Pickup Feeding System ...
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Страница 614: ...Chapter 8 8 46 F 8 49 10 9 12 11 5 5 4 4 3 5 1 2 1 2 3 1 2 3 4 1 2 3 4 5 ...
Страница 616: ...Chapter 8 8 48 F 8 51 2 1 3 3 3 2 1 1 2 1 2 3 5 6 7 8 ...
Страница 660: ...Chapter 8 8 92 ...
Страница 661: ...Chapter 9 Fixing System ...
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Страница 728: ...Chapter 9 9 64 ...
Страница 729: ...Chapter 10 Externals and Controls ...
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Страница 734: ...Contents ...
Страница 742: ...Chapter 10 10 8 F 10 2 FM12 FM11 FM1 FM2 FM4 FM3 FM6 FM7 FM9 FM8 FM5 FM13 FM14 FM10 ...
Страница 787: ...Chapter 11 Maintenance and Inspection ...
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Страница 815: ...Chapter 12 Standards and Adjustments ...
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Страница 868: ...Chapter 12 12 50 ...
Страница 869: ...Chapter 13 Correcting Faulty Images ...
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Страница 882: ...Chapter 13 13 10 13 3 Troubleshooting ...
Страница 891: ...Chapter 13 13 19 F 13 8 F 13 9 Field Remedy Replace the connector with the harness intact 3 4 1 5 2 ...
Страница 896: ...Chapter 13 13 24 F 13 11 F 13 12 Field Remedy Replace the connector with the harness intact 3 4 1 5 2 ...
Страница 898: ...Chapter 13 13 26 Image Sample F 13 13 ...
Страница 900: ...Chapter 13 13 28 Image Sample F 13 15 ...
Страница 929: ...Chapter 13 13 57 Image Sample F 13 45 ...
Страница 932: ...Chapter 13 13 60 Image Sample image of a specific color is too light F 13 47 ...
Страница 933: ...Chapter 13 13 61 image of a specific color is too dark F 13 48 ...
Страница 934: ...Chapter 13 13 62 image is too light overall F 13 49 ...
Страница 938: ...Chapter 13 13 66 F 13 51 1 Web retaining pad 2 Cam 3 Cleaning web 4 Outside heating roller 5 Fixing roller 1 2 2 3 4 5 ...
Страница 944: ...Chapter 13 13 72 F 13 53 F 13 54 Field Remedy Replace the connector with the harness intact 3 4 1 5 2 ...
Страница 966: ...Chapter 13 13 94 F 13 70 PS65 PS38 PS39 PS46 PS44 PS45 PS52 PS53 PS58 PS59 PS37 ...
Страница 968: ...Chapter 13 13 96 F 13 71 SW14 SW15 SW12 SW11 SW1 SW13 SW2 SW3 ...
Страница 974: ...Chapter 13 13 102 F 13 74 13 2 5 3 14 15 16 9 6 12 7 1 11 4 25 24 21 23 19 20 31 29 28 27 26 22 18 17 32 30 10 8 ...
Страница 980: ...Chapter 13 13 108 ...
Страница 981: ...Chapter 14 Self Diagnosis ...
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Страница 1051: ...Chapter 15 Service Mode ...
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Страница 1075: ...Chapter 15 15 11 15 2 1 4 JAM 15 2 1 4 1 Overview 0001 0066 Use it to check jam data F 15 10 1 3 4 5 2 6 7 ...
Страница 1302: ...Chapter 15 15 238 ...
Страница 1303: ...Chapter 16 Upgrading ...
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Страница 1395: ...Chapter 17 Service Tools ...
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Страница 1397: ...Contents Contents 17 1 Special Tools 17 1 17 2 Solvents and Oils 17 3 ...
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Страница 1402: ...Chapter 17 17 4 ...
Страница 1403: ...Apr 6 2004 ...
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