User manual MITA KM-1505 SERVICE MANUAL

[. . . ] KM-1505 SERVICE MANUAL Published in June. '01 2BT70760 CAUTION DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER. DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS. ATTENTION IL Y A DANGER D'EXPLOSION S'IL Y A REMPLACEMENT INCORRECT DE LA BATTERIE. REMPLACER UNIQUEMENT AVEC UNE BATTERIE DU MÊME TYPE OU D'UN TYPE RECOMMANDÉ PAR LE CONSTRUCTEUR. [. . . ] The setting is set, and the indication for selecting a maintenance item No. Completion To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears. 1-4-31 2BT Maintenance item No. U332 Setting the size conversion factor Description Description Sets the factor for converting each paper size into A4/11" × 81/2". The black ratio is converted for the A4/ 11" × 81/2" size using the factor set in this maintenance item. Values set are displayed in the user simulation. Purpose To set the factor to convert the black ratio of each paper size for A4/11" × 81/2" size. Select the paper size to be set by lighting a copy exposure indicator or making one flash using the copy exposure adjustment keys. Metric specifications Image mode LEDs Copy exposure indicator Exp. 3 (flashing) : Off, : On Copy exposure indicator Exp. 1 (flashing) Initial setting 1. 5 1. 0 0. 5 1. 0 Inch specifications Image mode LEDs AutoExp. Text & Photo Photo Text Paper size A4R B5R A5R B6R A6R Postcard Folio Non-standard Setting range 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 Initial setting 1. 0 0. 7 0. 5 0. 4 0. 3 0. 3 1. 0 1. 0 Paper size 81/2" × 14" 81/2" × 11"R 51/2" × 81/2"R Non-standard Setting range 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 0. 0 to 3. 0 : Off, : On 3. Change the setting using the zoom +/­ keys. Completion To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for selecting a maintenance item No. appears. 1-4-32 2BT Maintenance item No. U348 Setting the copy density adjustment range Description Description Selects the adjustment range for copy density from NORMAL and SPECIAL AREA (for wider range). Purpose To change the setting according to user request. When especially dark or light density is requested, set to SPECIAL AREA. Select the density range using the zoom +/­ keys. Display SPC (special area) nrL (normal) Description 5 steps (enlargement mode) 3 steps Initial setting: Normal 2. [. . . ] The CPU IC11 also controls the CCD PCB (CCDPCB), which is for image input control, and the LSU, which is for image output control, via the image processing ASIC MIP IC21, and drives the operation section and machine, conveys paper and detects abnormalities via XIO IC31. 2-3-4 2BT CN18 TP42 CN17 8 1 6 C428 C429 1 CN16 10 L48 CN12 2 1 L47 1 R445 6 5 R436 R437 R438 C Q43 B L410 L411 R439 R440 K R173 IC17 C Q46 B C EB Q 44 B DG Q41 B E E 14 S 5 b1 b2 C47 20 K R447 36 R430 TP47 TP48 C413 L42 C147 D42 1 C414 C 415 7 C410 C411 L41 C412 C 416 R448 L413 L414 L415 R453 L412 R457 12 25 CN20 b40 b39 a40 a39 L522 TP61 13 R242 R244 IC41 R240 R241 R246 X24 R239 R245 R548 Q56 Q57 ECB R243 C222 104 L64 R679 R675 R678 R673 R677 R669 L63 L610 R682 R672 R674 R671 R670 R668 R667 R665 R664 R663 C214 R691 L29 53 L210 R222 R223 C217 C216 X23 TP62 L66 L65 C819 L810 1 14 C818 R517 R528 R763 L 56 L54 C219 C220 C221 14 CN15 L514 R524 R538 105 52 C215 C212 C213 IC54 b20 b19 14 a20 a19 R247 R249 R264 R267 R248 R250 R254 R255 L613 2 R251 L612 C82 L81 C81 IC21 14 C85 D71 R527 C86 L83 R526 L88 3 7 1 C729 2 1 2 R534 18 17 L59 CN11 R6135 IC56 4 C815 6R758R533 5 CN13 R759 R782 R525 L73 R7108 R261 C28 IC53 8 B 7 7 156 C 1 E 8 L29 L25 R273 C84 L22 C26 C83 Q67 16 L82 C810 C89 8 C816 L713 4 5 4 R662 IC52 L85 R24 157 CN19 C25 R272 208 C210 C211 R271 R270 L24 R269 R268 IC51 L23 8 20 16 L68 b2 IC61 BE C B IC71 8 R728 R727 R729 b1 a2 a1 R730 L75 R726 L76 L78 CN6 2 1 R376 R378 R377 R367 R366 R365 R364 R363 R353 R352 R350 R349 R348 R347 R346 R345 R343 L61 9 BT11 Q72 EB EB C C Q13 R712 R713 R75 R77 R74 R76 L35 R373 R375 R374 R372 R371 R370 R369 R368 R362 R361 R360 R359 R358 R357 R356 R355 R354 R344 C Q12 L710 L711 L712 10 11 E 2 1 CN5 R618 R610 R337 R336 R335 Q73 Q66 D11 B Q62 Q63 Q64 Q65 E IC13 8 C19 C C822 14 4 L16 C 3 2 1 R168 L53 L89 L34 C33 C34 R385 37 B L31 R612 36 C31 1 2 144 C CN4 R617 R616 C69 R6131 Q11 B 5 7 C118 R467 L418 C432 C119 RA114 14 15 8 C R179 R155 R159 R157 28 31 L13 C A C111 C110 51 50 C53 R324 R325 Q61 R136 R134 R135 R132 R379 R131 R130 R129 R127 R125 R124 R122 R120 R382 R383 R144 R150 R152 R154 IC31 X11 IC 15 E R137 C L12 R170 R66 R64 R62 4 1 R776 2 1 D51 R58 R57 14 13 CN3 3 4 2 1 R773 R774 R775 L719 C116 RA C117 116 RA111 RA RA111 115 4 RA12 RA13 RA14 RA15 RA16 RA113 A E 30 72 C39 C310 73 D59 IC14 14 D72 D58 C114 C115 15 C36 109 108 C K L33 C35 C721 R7116 K C 38 L724 L724 C714 C511 L51 7 CN2 C719 L52 R786 IC 12 RA 110 IC11 IC72 25 L14 RA18 RA 8 19 24 81 100 RA17 5 RA11 C16 4 4 5 E R797 R792 R791 R113 R112 R380 R111 IC32 C726 80 1 Q71 B R116 R114 R7114 C720 C710 R118 14 3 C37 C38 L32 R768 R784 R7118 C L727 L723 C79 8 1 10 RA 117 5 RA 4 118 5 C11 C12 C13 C14 L11 C15 4 R341 7 8 R767 CN1 Figure 2-3-4 Main PCB silk-screen diagram R468 R469 R 177 R 178 IC55 C122 C17 18 17 28 1 D 43 4 C18 C R384 8 C R68 3 2 R471 L420 R7106 C55 C54 16 C817 R381 C32 11 X22 1 C812 C811 L86 9 X21 CN7 E C23 C22 L21 7 IC45 1 CN9 R749 R 748 C728 C27 C R7110 Q74 R7111 L79 L74 Q75 EB C B R26 C24 2 1 14 8 CN8 7 14 15 R719 R718 R717 L72 L71 12 R711 R710 11 R79 R6132 R557 R696 B C L611 L28 R233 R232 R231 R230 R229 L27 L26 L44 C427 C426 C425 C424 L43 R683 R685 R694 L521 L520 R6133 2 1 8 9 R553 R555 R556 R552 L524 R554 R549 R 429 C523 L 511 C421 C420 TP45 TP46 E Q55 13 L519 24 24 B C IC43 C522 B C422 C 423 R6109 R6110 R6134 R6111 C611 R172 C824 IC44 8 CN14 F51 R551 c D54 8 LA63 58 48 C44 11 12 a2 a1 Q54 BCE A TP D13 A K C42 C49 37 4 R446 Q45 C48 C C46 R410 43 L811 C821 C820 Q47 Q42 Q52 E L84 C43 R 420 TP 44 R174 C120 R7121 R7120 R7119 E Q53 D57 E R417 D41 C88 C87 C C 8 1 10 IC42 D12 A R47 E BE E 4 C823 D52 C R175 D53 C45 B L55 D55 B Q51 C C430 L416 C41 TP41 L45 L421 IC57 C512 D56 3 2 L46 R176 C121 16 L812 R171 L49 R516 C518 C524 F125 8 8 2-3-5 2BT Terminals (CN) 1-1 1-3 1-2 1-4 1-7 1-5 1-8 1-6 1-9 1-5 1-10 1-5 2-2 1-6 2-3 3-2 2-4 1-6 2-6 3-2 2-7 3-2 3-1 3-2 3-3 3-2 3-4 3-10 3-5 3-10 3-6 3-2 3-7 3-2 3-8 3-2 3-9 3-2 3-11 3-10 3-13 3-12 3-14 3-12 4-1 4-18 4-2 4-18 4-3 4-18 4-4 4-18 4-5 4-18 4-6 4-18 4-7 4-18 4-8 4-18 4-9 4-18 4-10 4-18 4-11 4-18 4-12 4-18 4-13 4-18 4-14 4-18 4-15 4-18 4-16 4-18 6-1 6-14 6-2 6-14 6-3 6-14 6-4 6-14 6-5 6-14 6-6 6-14 6-7 1-6 6-8 6-14 6-9 1-6 6-10 6-14 6-11 6-14 6-12 1-6 6-13 6-14 6-15 6-14 9-1 1-6 9-3 1-6 9-4 9-2 11-2 11-1 Voltage 24 V DC SF 24 V DC 5. 1 V DC 12 V DC 0/5 V DC 0/5 V DC (pulse) 0 - 14 V DC 24 V DC 0 - 5 V DC 24/0 V DC 0/24 V DC 24 V DC SF 24/0 V DC 0/5 V DC 0/5 V DC (pulse) 24/0 V DC 24 V DC 24/0 V DC 24 V DC 0/5 V DC 0/5 V DC 5 V DC 0/5 V DC 0/5 V DC 0/5 V DC 0/5 V DC 0/5 V DC 0/5 V DC 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC 0/5 V DC 24/0 V DC 24 V DC 24 V DC 24/0 V DC 24 V DC 24/0 V DC 0 - 5 V DC 0/5 V DC 0 - 5 V DC 0/5 V DC 0/5 V DC 0 - 5 V DC 0/5 V DC 24 V DC SF ­ 0 - 5 V DC 5 V DC 0/5 V DC Remarks 24 V DC supply from PSPCB, input (when SSW is on) 24 V DC supply from PSPCB, input 5. 1 V DC supply from PSPCB, input 12 V DC supply from PSPCB, input FH on/off, output Zero-cross signal, input TNS control voltage, output 24 V DC supply for TNS, output TNS detection voltage, input TFM drive control signal (+), output TFM drive control signal (­), output 24 V DC supply for PM, output PM on/off, output MSYNC signal, output PM drive clock pulse, output CL on/off, output 24 V DC supply for CL, output MSW on/off, input 24 V DC supply for MSW, output DDSW on/off, input RSW on/off, input 5 V DC supply for RSW, output OPCB SEG0 signal, output OPCB SEG1 signal, output OPCB SEG2 signal, output OPCB SEG3 signal, output OPCB SEG4 signal, output OPCB SEG5 signal, output OPCB DIG0 signal, output OPCB DIG1 signal, output OPCB DIG2 signal, output OPCB DIG3 signal, output OPCB DIG4 signal, output OPCB DIG5 signal, output OPCB DIG6 signal, output OPCB DIG7 signal, output OPCB KEY0 signal, input OPCB KEY1 signal, input BYPPFCL on/off, output 24 V DC supply for BYPPFCL, output 24 V DC supply for PFCL, output PFCL on/off, output 24 V DC supply for RCL, output RCL on/off, output Transfer charging control voltage, output Transfer charging on/off, output Developing bias control voltage, output Developing bias on/off, output Main charging ALM signal, input GRID control voltage, output Main charging on/off, output 24 V DC supply for HVTPCB, output ETTH detection voltage, input HUMSENS detection voltage, input 5 V DC supply for HUMSPCB, output SHPSW on/off, input 2-3-6 2BT Terminals (CN) 11-3 11-1 11-5 11-4 11-6 11-4 11-7 11-4 11-8 1-6 12-1 12-5 12-2 12-5 12-3 12-5 12-4 12-5 13-1 13-2 13-4 13-3 13-5 13-2 15-1 13-2 15-2 13-2 15-3 13-2 15-4 13-2 15-5 13-2 15-6 13-2 15-12 13-2 15-13 13-2 15-14 13-2 16-1 16-2 16-3 16-4 16-5 16-6 16-7 16-8 16-9 16-10 17-1 17-2 17-3 17-4 17-5 17-6 18-1 18-2 18-3 18-2 18-5 18-2 18-6 18-2 18-7 18-2 Voltage 5 V DC 0/5 V DC 5 V DC 5 V DC 0 - 5 V DC 0/24 V DC 0/24 V DC 24 V DC 24 V DC 24 V DC SF 0/5 V DC (pulse) 0/24 V DC 0/24 V DC (pulse) 24 V DC 0/24 V DC (pulse) 0/24 V DC (pulse) 24 V DC 0/24 V DC (pulse) 0/24 V DC 0/24 V DC 24 V DC 0/5 V DC (pulse) 0/5 V DC (pulse) 0/5 V DC 0/5 V DC 0/5 V DC ­ ­ 12 V DC 0/5 V DC 5 V DC SF 0/5 V DC 0/5 V DC 0/5 V DC Remarks 5 V DC supply for HUMSPCB, output ESW on/off, input 5 V DC supply for ESW, output 5 V DC supply for FTH, output FTH detection voltage, input EL on/off, output EL on/off, output 24 V DC supply for INPCB, output 24 V DC supply for INPCB, output 24 V DC supply for DM, output DM drive clock pulse, output DM on/off, output SM coil energization pulse, output (_A) 24 V DC supply for SM, output SM coil energization pulse, output (A) SM coil energization pulse, output (B) 24 V DC supply for SM, output SM coil energization pulse, output (_B) CFM on/off, output CFM half speed/full speed, output 24 V DC supply for CFM, output CCDPCB clock pulse, output CCDPCB clock pulse, output CCDPCB RESET signal, output CCDPCB CLP signal, output CCDPCB SHIFT signal, output CCDPCB image signal (ODD), input CCDPCB image signal (EVEN), input 12 V DC supply for CCDPCB, output LDPCB BD signal, input 5 V DC supply for LDPCB, output LDPCB ENABLE signal, input LDPCB VIDEO signal, input LDPCB ADJUST signal, input 2-3-7 2BT 2-3-3 Operation PCB key_sen[0] key_sen[1] CN2-2 CN2-1 K3 K4 K9 K5 K10 K6 K11 K7 K12 K8 K13 D2 D3 D4 D5 D6 D7 D8 _SCAN[0] _SCAN[1] _SCAN[2] _SCAN[3] _SCAN[4] _SCAN[5] _SCAN[6] _SCAN[7] _LEDON[0] _LEDON[1] _LEDON[2] _LEDON[3] _LEDON[4] _LEDON[5] CN1-3 CN1-2 CN1-1 CN2-7 CN2-6 CN2-5 CN2-4 CN2-3 a1 b1 c1 d1 e1 f1 g1 DP1 CN1-9 a2 b2 b3 c2 c3 d2 d3 L4 e2 e3 L5 f2 f3 L6 g2 g3 L7 L15 L20 DP2 DP3 L8 L16 CN1-8 a3 CN1-7 CN1-6 L9 L10 L18 L11 L19 CN1-5 CN1-4 Figure 2-3-5 Operation unit PCB block diagram The operation unit PCB (OPCB) consists of key switches and LEDs. The lighting of LEDs is determined by scan signals (SCAN [0] to SCAN [7]) and LED lighting selection signals (LEDON [0] to LEDON [5]) from the main PCB (MPCB). The key switches operated are identified by the scan signals (SCAN [0] to SCAN [7]) and the return signals (key sen [0], [1]). As an example, to light "a1", the LED lighting selection signal (LEDON [0]) should be driven high in synchronization with a low level on the scan signal (SCAN [7]). [. . . ]