HP 8550 Service Manual - Page 20
U.S. Letter.273, Europe/Asia A4.273
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18 Tables Table 39. Table 40. Table 41. Table 42. Table 43. Table 44. Table 45. Table 46. Table 47. Table 48. Table 49. Table 50. Table 51. Table 52. Table 53. Table 54. Table 55. Table 56. Table 57. Table 58. Table 59. Table 60. Table 61. Table 62. Table 63. Table 64. Table 65. Table 66. Table 67. Table 68. Table 69. Table 70. Table 71. Table 72. Table 73. Table 74. Table 75. Table 76. Table 77. Table 78. Copier, run/check mode menu descriptions 93 Copier, run/check mode Level 2 and Level 3 menus . 94 Control panel key descriptions 96 Copier, machine settings menu descriptions 98 Copier, machine settings mode Level 2 and Level 3 menus 99 Copier, machine settings mode, soft counter specifications 103 Soft counter defaults by voltage and country 107 Copier, test print mode Level 2 and Level 3 menus . 109 Test print options 110 Copier counter menu descriptions 111 Copier, counter mode Level 2 and Level 3 menus . . 112 Feeder options 115 Serviceable printer parts 119 Feeding power measurements 154 Periodically replaced parts 163 Items to be cleaned 166 Lubricants 174 Warm-up and standby phases 184 Sequence functions 187 Scanning lamp/scanning lamp heater errors 196 Identifying original size, metric 199 Identifying original-size, inches 199 PCB functions 206 BGR->YMC conversion 217 Enlargement/reduction and image processing . . . . . 222 Copy module fan 234 Power saving function 235 Copy module main power supply 239 Accessories power supply (secondary side 239 Page composition sizes 255 Europe/Asia (A4 273 U.S. (Letter 273 Relationship between pick-up motor signals and the pick-up roller 276 Relationship between belt motor drive signal and the feeding belt 278 Jam detection sensors 279 Jam detection 280 Improper placement of originals sensors 282 Improper placement detection 283 Motors, solenoids, and sensors 286 PCB functions 287 EN