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Canon NP6621 Service Manual

Also see for NP6621: Service manualService handbook

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Contents
  1. CONTENTS
  2. Table Of Contents
  3. Table Of Contents
  4. Table Of Contents
  5. Table Of Contents
  6. I. FEATURES
  7. II. SPECIFICATIONS
  8. Cassette Feeding Module-A2/Cassette Feeding Unit-K1
  9. C. Paper Deck Pedestal-K1
  10. III. NAMES OF PARTS
  11. B. Cross Section
  12. IV. BASIC OPERATION
  13. B. Making Copies
  14. C. Using the Stack Bypass
  15. D. User Mode
  16. auto clear time
  17. initializing user mode
  18. V. WARNINGS AND ACTIONS
  19. B. Cleaning the Static Charge Eliminator
  20. VI. ROUTINE CLEANING
  21. CHAPTER 2 COPYING PROCESS
  22. Table Of Contents
  23. I. IMAGE FORMATION
  24. B. Latent Static Image Formation Block
  25. C. Step 1 (pre-exposure)
  26. E. Step 3 (image exposure)
  27. G. Step 5 (transfer)
  28. H. Step 6 (separation)
  29. I. Step 7 (fixing)
  30. II. AUXILIARY PROCESS
  31. CHAPTER 3 OPERATIONS AND TIMING
  32. Table Of Contents
  33. I. BASIC OPERATIONS
  34. B. Outline of Electrical Circuitry
  35. C. Inputs to the DC Controller
  36. D. Outputs from the DC Controller
  37. E. Inputs to and Outputs from the Cassette Feeding Module-B2 Driver PCB
  38. F. Inputs to and Outputs from the Cassette Feeding Module-A2 Driver PCB
  39. G. Inputs to and Outputs from the Cassette Feeding Unit-K1 Driver PCB
  40. H. Main Motor Control Circuit
  41. II. EXPOSURE SYSTEM
  42. lens motor drive circuit
  43. C. Scanner Drive System
  44. driving the scanner motor
  45. D. Operations of the Scanner in Page Separation Mode
  46. j. blank exposure control
  47. a. pick-up from the machine
  48. C. Duplexing Unit
  49. D. Pick-Up from the Cassette Feeding Module-A2
  50. E. Pick-Up from the Cassette Feeding Unit-K1
  51. F. Paper Deck Pedestal-K1
  52. lifter operation
  53. G. Multifeeder
  54. H. Identifying the Size of the Cassette
  55. I. Fixing/Delivery Assembly
  56. J. Detecting Jams
  57. delivery delay jam
  58. delivery stationary jam
  59. V. POWER SUPPLY
  60. B. Power Supply Circuitry
  61. C. Detecting Errors on the Power Supply PCB
  62. D. Protection Mechanisms for the Power Supply Circuit
  63. VI. SERVICE MODE
  64. C. Control Display Mode ('1')
  65. D. I/O Mode ('2')
  66. E. Adjustment Mode ('3')
  67. F. Operation/Inspection Mode ('4')
  68. G. Machine Settings Mode ('5')
  69. H. Counter Mode ('6')
  70. VII. SELF DIAGNOSIS
  71. B. Self Diagnosis on the Cassette Feeding Unit
  72. C. RDF/ADF Self Diagnosis
  73. D. Sorter Self Diagnosis
  74. VIII. STANDARDS AND ADJUSTMENTS
  75. checking the photointerrupters
  76. CHAPTER 4 MECHANICAL SYSTEM
  77. Table Of Contents
  78. I. EXTERNALS
  79. B. Control Panel
  80. removing the exhaust fan
  81. E. Counter
  82. II. DRIVE SYSTEM
  83. routing the scanner cable
  84. B. Lens Drive Assembly
  85. routing the lens cable
  86. C. Main Motor
  87. III. PICK-UP/FEEDING SYSTEM
  88. removing the separation pad
  89. B. Multifeeder Assembly
  90. C. Registration Roller Assembly
  91. D. Feeding Assembly
  92. F. Duplexing Assembly
  93. G. Cassette Unit
  94. H. Paper Deck Pedestal-K1
  95. points to note
  96. removing the separation roller
  97. IV. EXPOSURE SYSTEM
  98. routing the blank shutter cable
  99. V. CHARGING SYSTEM
  100. B. Primary Charging Assembly
  101. C. Transfer Charging Assembly
  102. D. Drum Heater
  103. removing the developing assembly
  104. removing the developing cylinder
  105. VII. FIXING SYSTEM
  106. removing the fixing roller
  107. VIII.ELECTRICAL
  108. C. AE Sensor PCB
  109. I. SELECTING THE SITE
  110. II. UNPACKING AND INSTALLING THE COPIER
  111. B. Turning On the Copier
  112. C. Checking the Images and Operations
  113. D. Attaching the Drum Unit
  114. E. Changing the Cassette Size
  115. III. RELOCATING THE COPIER
  116. IV. REPLACING THE DRUM UNIT
  117. V. INSTALLING THE CONTROL CARD IV N
  118. I. PERIODICALLY REPLACED PARTS
  119. A. GENERAL TIMING CHART
  120. B. SIGNALS AND ABBREVIATIONS
  121. C. GENERAL CIRCUIT DIAGRAM
  122. D. DC CONTROLLER CIRCUIT DIAGRAM
  123. E. COMPOSITE POWER SUPPLY CIRCUIT DIAGRAM
  124. F. CONTROL PANEL KEY PCB
  125. G. AE SENSOR CIRCUIT DIAGRAM
  126. H. INTENSITY SENSOR CIRCUIT DIAGRAM
  127. I. TONER LEVEL DETECTION CIRCUIT DIAGRAM
  128. J. CASSETTE FEEDING MODULE-B2 GENERAL CIRCUIT DIAGRAM
  129. K. CASSETTE FEEDING MODULE-B2 DRIVER CIRCUIT DIAGRAM
  130. L. CASSETTE FEEDING MODULE-A2 GENERAL CIRCUIT DIAGRAM
  131. M. CASSETTE FEEDING MODULE-A2 DRIVER CIRCUIT DIAGRAM
  132. N. CASSETTE FEEDING UNIT-K1 GENERAL CIRCUIT DIAGRAM
  133. O. CASSETTE FEEDING UNIT-K1
  134. P. PAPER DECK PEDESTAL-K1 GENERAL CIRCUIT DIAGRAM
  135. Q. PAPER DECK PEDESTAL-K1 DRIVER CIRCUIT DIAGRAM
  136. R. SPECIAL TOOLS
  137. S. SOLVENTS/OILS
Canon NP6621 Service Manual Manual pdf 17 page image
GENERAL DESCRIPTIONCOPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 1–7III. NAMES OF PARTSA. Exteriorq Body open/close leverw Copy density correction volumee Static eliminator cleanerr Static eliminatort Copy trayy Anti-condensation heater switch (rear)Fluorescent heater switch (front)Figure 1-302t Front doory Control panelu Copyboard glassFigure 1-301q Copyboard coverw Power switche Multifeederr Cassette1234567123564
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