Text preview for : 1550SH.PDF part of Toshiba BD-1550 Toshiba BD-1550 Service HandBook
Back to : 1550SH.PDF | Home
SERVICE HANDBOOK PLAIN PAPER COPIER
PAPER FEEDING UNIT
Click the Page Only button to close the overview area of the window.
1550
MY-1004
Click the Bookmarks and Page button to open the Contents and display bookmarks created for the document. Click a bookmark's name to go to the Page marked by that bookmark. Click the Thumbnails and Page button to open the overview area and display thumbnail images of each document page. Click a thumbnail to go to the page marked by that thumbnail.
Copyright TOSHIBA CORPORATION 1995 ALL RIGHTS RESERVED
GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND THE SERVICE OF THE 1550/MY-1004
1. Transportation/Installation · When transporting/installing the copier, using two persons, be sure to use the positions as indicated below. The copier is fairly heavy and weighs approximately 35 kg (76.8 lb), therefore pay full attention when handling it.
4 portions
2. Installation · Be sure to use a dedicated outlet with AC 115V/15A (220V, 240V/10A) or more for its power source. · The copier must be grounded for safety. Never ground it to a gas pipe or a water pipe. · Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and direct sunlight. · To insure adequate working space for the copying operation, keep a minimum clearance of 80 cm (31.5") on the left, 80 cm (31.5") on the right and 10 cm (3.9") in the rear. 3. Service of Machines · Basically, be sure to turn the main switch off and unplug the power cord during service. · Be sure not to touch high temperature sections such as the exposure lamp, the fuser unit, the damp heater and their periphery. · Be sure not to touch high-voltages sections such as the chargers and the high-voltage transformer. · Be sure not to touch rotating/operating sections such as gears, belts, pulleys, etc. · When servicing the machines with the main switch turned on, be sure not to touch live sections such as the lamp terminal etc. · Use suitable measuring instruments and tools.
4. Main Service Parts for Safety · The thermofuse, thermistor, fuse, breaker and door switch, etc. are particularly important for safety. Be sure to handle/install them properly. 5. Notice Labels · Be sure to check the rating plate and the notice labels such as "Unplug the power cord during service", "Hot area", etc. to see if there is any dirt on their surface or if they are properly stuck to the copier during servicing. 6. Disposition of Consumable Parts/Packing Materials · Regarding the recovery and disposal of the copier, consumable parts and packing materials, it is recommended to follow the relevant local regulations or rules. 7. When parts are disassembled, reassembly is basically the reverse of disassembly unless otherwise noted in this manual or other related documents. Be careful not to reassemble small parts such as screws, washers, pins, E-rings, toothed washers in the wrong places. 8. Basically, the machine should not be operated with any parts removed or disassembled.
1. ADJUSTMENT ITEMS
1.1 Error Code Table
When the "CLEAR PAPER" or "CALL SERVICE" symbol is flashing, pressing the "CLEAR/STOP" key and the "8" key simultaneously causes one of the following error codes to be displayed while the keys are pressed. (1) Paper misfeeding in the copier paper path
Error code E01 E02 E03 E05 Content Paper misfeeding inside the copier Paper misfeeding in the neighborhood of the fuser Paper misfeeding inside the copier when the power is turned on. Non-arrival-at-aligning-switch misfeeding After the paper fed from PFU has passed the transport roller or fed from PPC? Remarks Bypass misfeeding is also included. (Bypass feeding LED comes ON.)
(2) Paper misfeeding in the paper feeding section
Error code E14 Content Lower cassette paper misfeeding (PFU) Remarks Paper does not arrive at the transport roller.
(3) Paper misfeeding in the ADF transport path
Error code E71 E72 E73 E75 Content Misfeeding in the ADF original feeding section Midfeeding in the ADF original transport section Misfeeding in the ADF original exiting section 2 in 1 (2nd-original misfeeding in the feeding section) Remarks
Oct. 1995 © TOSHIBA CORP.
1-1
1550 ADJUSTMENT
(4) Paper misfeeding in the sorter transport path
Error code E81 E82 Content Paper delaying jam in the sorter transport path Paper staying jam in the sorter transport path. Remarks Paper does not arrive at the entrance sensor. Paper stays at the entrance sensor.
(5) Service call for the copier's drive system
Error code C01 Content Abnormal operation of the main motor Remarks
(6) Service call for the optical system
Error code C21 C22 Content Optical system initialization error Optical system initialization error Remarks Scanning, lens or mirror abnormal operation. When the lens is moved in the paper exit direction at the time of the start of initialization,and only if it is not detected by the switch.
C26
Blown exposure lamp detection
(7) Service call for the process system
Error code C32 Content Easy setup (UA mode) error Remarks
(8) Fuser unit related
Error code C41 C43 C44 Content Abnormal thermistor or broken heater when the power is turned on. Abnormal thermistor during warming up. Heater breakage after the copier becomes ready. Remarks
(9) Communication related service call
Error code C54 C55 Content Abnormal communication between the sorter and the main CPU Abnormal communication between ADF and the main CPU Remarks
1550 ADJUSTMENT
1-2®
July 1996 Oct. 1995 © TOSHIBA CORP.
(10) ADF related
Error code C71 C72 C73 Content Locked ADF main motor Maladjusted aligning sensor detection Faulty EEROM initialization Remarks ADF jam LED is flashed. ADF jam LED is flashed. ADF jam LED is flashed .
(11) Sorter related service call
Error code C81 C82 C83 C84 C85 C88 Content Abnormal paper transport motor Abnormal bin-moving motor Upper limit error Lower limit error Home sensor error Copy-removal sensor error Remarks
(12) Service call for other abnormalities
Error code C94 Content Faulty optical system initialization in special modes (CH, AJ). Remarks The content is similar to C21 error.
Oct. 1995 © TOSHIBA CORP.
1-3
1550 ADJUSTMENT
1.2
Self-Diagnostic Mode
Keys pressed simultaneously 0+1 0+2 0+3 0+4 0+5 0+6 0+7 0+8
Mode All control-panel LEDs ON mode Aging mode Test mode Test mode Adjustment mode Forced ready mode Aging mode Setting mode
Description All LEDs on the control panel come on. Aging Motor test and input/output check (including initialization) Motor test and input/output check Various adjustments Forces the copier to become ready. Aging (with ADF) System changing and setting defaults and PM counter
Clearing "Clear/Stop" key "09" "09" "09" "09" -- "09" "09"
Indication -- AG CH CH AJ -- AG AD
Note: How to access each mode: While pressing the two keys for the mode to access (ex. "0" and "5" for the adjustment mode), turn on the main (power) switch.
· All control-panel LEDs ON mode (01) :
0 1 Power All control-panel LEDs come on C/S Clear
· Aging mode (02) :
0 2 Power Aging operation PRINT C/S 0 9 Clear
· Test mode (03 or 04) : For this mode, refer to the "Input/Output Check" on page 1-6. · Adjustment mode (05) : For this mode, refer to the "Adjustment Mode" on page 1-9.
1550 ADJUSTMENT
1-4
Oct. 1995 © TOSHIBA CORP.
· Forced ready mode (06) :
Power 0 6 Forced ready status
Note: This mode should be used only when checking paper feeding operation.
· Setting mode (08) : For this mode, refer to "Setting Mode" on page 1-12.
Self-diagnostic mode progress diagram : Power ON
"01" "C"
Warming up
All control-panel LEDs ON
"02" "07"
Aging
"03/04"
"05"
"08"
Test mode
Adjustment mode
Setting mode
"P" "06"
"C"
"09"
"09"
"09"
Temporary stop Stand-by
"05"
"P" : Press PRINT. "C" : Press CLEAR/STOP.
Oct. 1995 © TOSHIBA CORP.
1-5
1550 ADJUSTMENT
1.2.1
Input check (Test mode 03/04)
In the 03 or 04 test mode, you can check the status of each of the following input signals by pressing the corresponding keys.
LIGHT
AUTO
DARK
Input value 1
EXP1 --
EXP2 -- CTR-CNT
EXP3 -- HTR-RDY (Not ready) TNR-FUL (Normal) -- EMP-SW2 (No paper) Paper width sensor 2 (ON) Removal sensor (ON)
EXP4 --
EXP5 PFU cover switch (open) -- S-CNT (No sorter) SIZ03
EXP6 Developer unit switch (none) -- MRR-HOM (Home position) SIZ02 (OFF) SIZ12 (OFF) Open sensor (ON) One-rotation sensor (ON)
EXP7 Main motor PLL (NG) -- LNS-HOM (Home position) SIZ01 (OFF) SIZ11 (OFF) Exit sensor (ON) Paper-on-tray sensor (ON)
EXP8 --
2
-- (No CTR) EMP-SW EXIT-SW (Paper present) -- CST2 (No cassette) --
-- DF-CNT (No DF) --
-- CRG-HOM (Home position) SIZ00 (OFF) SIZ10 (OFF) Aligning sensor (ON) Entrance sensor (ON)
3 (No paper) 4 -- RGT-SW (Paper present) --
(OFF) 5 FED-SW (Paper present) Paper width sensor 1 (ON) Limit sensor (ON) SIZ13 (OFF) Empty sensor (ON) Bin-home sensor (ON)
6
7
--
--
*
( ) means that LEDs come on.
0 3 Power PRINT Nemeric keys LED ON 0 9
1550 ADJUSTMENT
1-6
Oct. 1995 © TOSHIBA CORP.
1.2.2
Output check mode (Test mode 03/04)
In the 03 or 04 test mode, you can check the status of each of the output signals by entering the following corresponding code.
Code 1 2 3 6 7 8 9 10
*1 20
Function 64444474444448 Main motor Feed roller clutch (copier) Aligning roller clutch (copier) Toner motor Optics fan Exit fan Pick-up roller clutch (copier) Total counter Scanning motor Lens motor Mirror motor HVT-M HVT-TR HVT-AC Exposure lamp 64474448 PFU motor (PFU) Pick-up roller clutch (PFU) Feed roller clutch (PFU) Aligning roller clutch (PFU) DF independent aging DF pick-up roller rotation DF aligning roller DF transport belt rotation DF pick-up roller rotation/Weight solenoid DF weight solenoid DF clutch Sorter transport motor Sorter bin motor Sorter aging without paper 64748
Code 11 12 13 ON 16 17 18 19 Main motor
Function 64444474444448
Group
Feed roller clutch (copier) Aligning roller clutch (copier) Toner motor Optics fan Exit fan Pick-up roller clutch (copier)
OFF
1
Increases at each "P" key press. At 1st "P" key press, scans forward and backward at 2nd press. At 1st "P" key press, moves to 50% position and to 200% position at 2nd press. At 1st "P" key press, moves to 50% position and to 200% position at 2nd press.
21 22 30 31 32 33 61 62 63 64 80 82 83 84 85 86 87 90 91 92
2
At 1st "P" key press, comes on and goes off at 2nd press.
3
If forced on for 5 sec., it goes off. 64474448 71 ON 72 73 74 PFU motor (PFU) Pick-up roller clutch (PFU) Feed roller clutch (PFU) Aligning roller clutch (PFU)
OFF
1
At 1st "P" key press, starts and stops at 2nd press. 6 4 4 4 4 7 4 4 4 4 8 4 4 4 4 4 4 4 4 4 4
At 1st "P" key press, comes on and stops at 2nd press.
3
At 1st "P" key press, starts and goes off at 2nd press.
*1: Scanning motor rotates at the preset reproduction ratio.
Oct. 1995 © TOSHIBA CORP.
1-7
1550 ADJUSTMENT
Group 1
03/04 Power supply
Code
Print
Operation ON
Stop code
Print
Oparation OFF
09
Warm up
Group 2
03/04 Power supply
Code
Print
Operation (one direction)
C/S 09
Test mode standby state Warm up
Group 3
03/04 Power supply
Code
Print
Operation (ON)
C/S Print 09
Test mode standby state Warm up
1550 ADJUSTMENT
1-8
Oct. 1995 © TOSHIBA CORP.
1.2.3
Adjustment mode (AJ: 05)
In this adjustment mode, the following items can be adjusted or modified. (Refer to the adjustment code list.) The adjustment mode can be accessed by turning on the power while pressing the "0" and "5" keys simultaneously.
Code
*2 0
Description Automatic auto-toner adjustment Manual exposure Manual exposure Manual exposure Manual exposure Auto-exposure Auto-exposure Auto-exposure Auto-exposure Exposure (light) Inclination 100% 154% 50% 200% 100% 154% 50% 200%
Allowable input value -- 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255
Initial value *1 -- 128 128 128 128 128 128 128 128 255 Set to 24.
Content
1 2 3 4 5 6 7 8 9
The larger, the lighter. The larger, the lighter. The larger, the lighter. The larger, the lighter. The larger, the lighter. The larger, the lighter. The larger, the lighter. The larger, the lighter. The larger, the lighter at the light side. The larger, the lighter at the dark side. The larger, the lighter. The larger, the lighter. The larger, the lighter. The larger, the lighter. Each increase by "1" causes the lenthwise reproduction ratio to increase by 0.1% Each increase by "1" causes the erased position by LED to shift approx. 1mm toward the trailing edge of the paper. But the image position relative to the paper does not change. (with original surface as reference)
10 14 15 16 17
Exposure (dark) Inclination Photo exposure Photo exposure Photo exposure Photo exposure Lengthwise reproduction ratio adjustment Eraser LED timing adjustment Eraser LED timing adjustment Eraser LED timing adjustment 100% 200% 50% 100% 154% 50% 200%
0~255 0~255 0~255 0~255 0~255
0 128 128 128 128
21
0~15
8
25 26 27
0~15
8
Oct. 1995 © TOSHIBA CORP.
1-9
1550 ADJUSTMENT
Code 30 31 35 36 38 39 40 42
*3
Description Eraser LED leading edge margin adjustment Eraser LED trailing edge margin adjustment Margin on the leading edge Margin on the trailing edge Grid bias adjustment Transfer transformer adjustment Separation transformer adjustment Grid bias adjustment (photo) Automatic auto-exposure adjustment Leading edge (copier; 100%) Leading edge (copier; 200%) Leading edge (copier; 50%) Leading edge (bypass feeding) Leading edge position (PFU) Lens position adjustment (100%)
Allowable input value
Initial value *1
Content Each increase by "1" causes the erased position by LED to shift 1mm toward the trailing edge. (with paper surface as reference) 0: No margin 115: Margin present (approx. 1mm/step) The larger, the larger output. The larger, the larger output. The larger, the larger output. The value should be 121.
0~15
8
0~15 0~255 0~255 0~255 0~255 --
0 128 128 128 121 --
49 53 54 55 56 57 60 61 62 63 64 65 80 81 82 83 84
0~15
8
Each increase by "1" causes the image to shift 0.80mm toward the paper leading edge.
Mirror position adjustment (100%) Enlargement correction Enlargement error ratio Reduction correction Reduction error ratio Aligning value (PFU) Aligning value (short size) Aligning value (copier) Aligning value (B5) ADF aligning amount (200%) (200%) ( 50%) ( 50%) 0~31 0~31 0~31 0~31 0~15 8 16 8 16 8 0~40 20
Each increase by "1" moves toward the exit side.
Each increase by "1" causes the paper to bend more. Short size: A4/A5-R,LT/ST-R B5: for B5 only The adjustment sequence must be 82¡89¡81¡83¡80. Each decrease by "1" causes the original stop position to shift about 1mm toward the original scale. Each increase by "1" causes the gap between the originals to increase about 1mm. Each increase by "1" causes the paper to bend more Middle size: A4-R/B5-R/FOLIO, LG,LT-R Shows the adjustment value of the auto toner sensor.
87
ADF original-to-original gap (2 in 1 mode)
0~15
8
89
Aligning value (middle size)
0~31
16
90
*4
Auto-toner adjustment ADF EEPROM initialization ADF aligning sensor automatic adjustment
0~255 -- --
128 -- --
97 98
*4
*1: The initial value signifies the value set by the NV-RAM initialization program and not the value set at the time of shipping from the factory. 1550 ADJUSTMENT 1 - 10 ® July 1996 Oct. 1995 © TOSHIBA CORP.
0 5
Power
Code
PRINT
Adjustment
INTERRUPT Memorize
ENERGY SAVER Test copy
0 9 Clear
*2 0
5
Power
0
PRINT
Automatic auto-toner adjustment
INTERRUPT Memorize
0 9 Clear
*3 0
5
Power
49
PRINT
Automatic auto-exposure adjustment
0 9 Clear (Possible only after the automatic adjustment is completed.)
*4 0
5
Power
97 98
PRINT
ADF EEROM initialization 0 9 ADF Aligning roller automatic adjustment Ends 2 Clear sec. later.
Oct. 1995 © TOSHIBA CORP.
1 - 11
1550 ADJUSTMENT
1.2.4
Setting mode (08)
In this mode, it is possible to set or modify the various modes shown in the following setting code list.
Code 2 4 7 8 9
Description Size indication by the carriage Automatic sort mode Access control mode Version ACT selection (reproduction ratio in the direction of copy movement)
Allowable input value 0, 1 0~3 0, 1 0~2 0, 1
Initial value 1 0 0 0: None; 0: None; 1, 2: Sort; 0: None;
Content 1: Available
3: Group 1: Available 1: UC; 2: JPN
Each version 0: EUR; 0: EUR 1: UC 0: 100%;
1: 101% 1: 15 sec. 3: 45 sec. N: N x15 sec. 1: 3: 5: 7: 9: 11: 13: 15: 30 sec. 90 sec. 150 sec. 4 min. 7 min. 15 min. 30 min. 60 min.
10
Timer mode (auto reset)
0~10
0: None; 3 (45 sec.) 2: 30sec.; 4: 60 sec.; 0: 2: 4: 6: 8: 10: 12: 14: None; 60 sec.; 120 sec.; 3 min.; 5 min.; 10 min.; 20 min.; 45 min.;
11
Auto power saving
0~15
0
12
Maximum number of copies
0~3
0
0: Max. 999 copies 1: Max. 99; 2: Max. 9 3: Max. 500 0: Retry; 0: A4/LT 3: Copier; 1: No retry
13 14
Paper feeding retry Cassette priority selection
0,1 0~4
0 0
4: PFU
15 16 17 19 20
Exposure priority selection A3-size double counting Bypass auto start Sorter priority selection Pre-run ON/OFF
0~2 0,1 0,1 0~3 0~15
0 0 0 0 0
0: Auto; 1: Manual 3: Photo mode 0: Single count; 1: Double count 0: Manual start; 0: Non-sort; 1, 2: Sort; 1: Auto start 3: Group
0: OFF 1~15: N x10 sec.
1550 ADJUSTMENT
1 - 12
Oct. 1995 © TOSHIBA CORP.
Code 21 22 23
Description Auto cassette change ADF mode Thick paper selection at bypass pre-running ADF's APS mode
Allowable input value 0,1 0~5
Initial value 1 0 0: None;
Content 1: Available 1: APS 3: 2 in 1+AMS 5: 2 in 1: Available
0: Manual; 2: AMS; 4: 2 in 1+APS 0: None;
0,1
0 0: UC 1: EUR
27
0~2
0: Detection for each original; 1: Detection for 1st original only; 2: Prevents copying blank originals 0: 1st copying possible 1: 2nd Copying possible 2: Copying not possible 0: Normal; 0: 2: 4: 6: Heater off; 130°C; 150°C; 170°C; 1: Sort default 1: 3: 5: 7: 120°C 140°C 160°C 180°C
28 37
Pressing PRINT after suspension of APS/AMS Default sorter key selection
0~2 0,1
0 0
38 44 51 52 53 54 58 59 62
Heater temperature during power saving All clearing after copying Easy set-up method (UA mode) Quick copy mode Broken exposure lamp detection Coin-vender mode Reproduction-ratio display time LG size AMS copy stop switching
0~7 0,1 0,1 0,1 0~2 0,1 0~15 0,1 0,1
0 0 0 0: EUR 1: UC 0 0 0 0 0 0: EUR 1: UC
0: None; 0: No; 0: None;
1: Available 1: Yes 1: Available
0: All exposure modes 1: Auto only; 2: None 0: None; 2+0.2xN sec. 0: 14 inch; 1: 13 inch 1: Available
0: No stop; 1: Temporary stop 0: APS ¡ AMS ¡ 2in1 + AMS ¡ 2in1 + APS ¡ 2in1 0: APS ¡ AMS ¡ 2in1 + AMS 0: No PM counter; Other than 0: When set value < code 79, PM call occurs.
63
DF key selection order switching
0,1
69 79
PM counter setting Current PM counter value
0~999,999 0~999,999
0 0
0 8 Code PRINT Setting or modifying the value INTERRUPT Memorize 0 9 Clear
Power
Oct. 1995 © TOSHIBA CORP.
1 - 13
1550 ADJUSTMENT
Code
Description
Allowable input value
Initial value
Content
89
Heater abnormal counter
0~7
0
Error code C41
Code 89 Value 1 2
Timing of the error
Cause of the error Abnormal thermistor (disconnection) or broken heater Abnormal thermistor (disconnection) Broken heater
When the power is turned on During warming up
C43
4 5
C44
6 7
After the finish of warming up ---
Abnormal thermistor (disconnection) Broken heater ---
Absent (normal)
0
· When the power is the turned on, if an abnormality occurs, the C41 "CALL SERVICE" symbol will flash, and the value of the setting mode code 89 will be counted up. · When the Code 89 value is 0~1, rewarming up is performed by turning on the machine again. If the value is 2 or more, "CALL SERVICE" symbol will flash immediately. · If an abnormality occurs during warming up or the standby mode, C43 or C44 "CALL SERVICE" symbol will flash immediately, and the value of the setting mode code 89 depends on the conditions present at the time of the occurrence.
1550 ADJUSTMENT
1 - 14 ®
Oct. 1995 © TOSHIBA CORP. July 1996
1.3.A (1)
Installing the Carriage Drive Wire
Spherical terminal
Set the wire so that its spherical terminal is placed in the hole of the wire take-up pulley.
Wire takeup pulley
(2)
Using the wire holder jig, wrap the wire on the take-up pulley, 3-1/4 turns of the fixture-side end and 5-1/4 turns of the other end.
Wire take-up pulley
Wire holder jig
(3)
Wrap the wires on the front and rear sides, as shown and fasten them with screws.
Hook (feed side) Front side wire fixture (Marking "F") Hook (feed side) [Rear side]
[Front side]
Rear side wire fixture (Marking "R")
Spherical terminal
5
1 turns 4 closely fit
1 3 4 turns closely fit Shaft
1 3 4 turns closely fit
5
1 turns 4
closely fit 1550 ADJUSTMENT
Oct. 1995 © TOSHIBA CORP.
1 - 15
(4) (5)
Install carriage 2. As shown on figure , attach the wires.
1
[Feed side]
Wire fixing 1
Fixed to CRG 1 CRG 2
[Exit side] Wire fixing 7
2
8.5 turns
4
3 6 5
Shaft
View as seen from the rear
1.3.B Adjusting the Carriage Wire Tension After having removed the wire, adjust the tension of the wire with the adjustment screw so that the exit side leaf spring will be deflected as shown in the drawing below. Also, always adjust the positions of the carriage 1 and 2 after finishing the tension adjustment.
Carriage drive wire
Hook
Adjustment screw (12.8) (Before) (Deflect it by 2 mm) (14.8) (After) Wire tension bracket
1550 ADJUSTMENT
1 - 16
Oct. 1995 © TOSHIBA CORP.
1.4 (1)
Position Adjustment of Carriage 1 and 2 While pushing carriage 2 to exit side, tighten the screw on the front.
[Exit side]
Carriage 2
(2)
Fasten carriage 1 to the wire: Each screw on the front and rear should be tightened temporarily.
[Exit side]
(3)
While pushing carriage 1 to the exit side (carriage 2), tighten the screws ..... on the front and rear.
Note: Move carriages 1 and 2 to the exit side by rotating the shaft and check to make sure that the claws of both carriages (two for each) touch the inside surface of the frame at the same time.
Carriage 1
Oct. 1995 © TOSHIBA CORP.
1 - 17
1550 ADJUSTMENT
1.5 (1) (2)
Light Distribution Adjustment Remove the glass holder (2 screws) and then the original glass. Move light-distribution adjustment plate 1 3 in the direction of the arrow (@), depending on the amount of uneven light distribution. Adjustment should be made so that the image becomes darker evenly.
Light-distribution adjustment plate 1 1
Light-distribution 2 adjustment plate 2
Light-distribution 3 adjustment plate 3
(3)
Move light-distribution adjustment plates 1 and 2 in the direction of the arrow. (When the rear side is darker)
Direction of movement
(4)
Move light-distribution adjustment plates 2 and 3 in the direction of the arrow. (When the front side is darker)
Direction of movement
As a result of the above adjustment, there is a possibility that under-exposure or over-exposure may occur; make exposure adjustment if necessary.
1550 ADJUSTMENT
1 - 18
Oct. 1995 © TOSHIBA CORP.
1.6 (1)
Image Slanting and Image Distortion Adjustment Image slanting adjustment
Direction of movement Image
Direction of movement
Paper
A
B
After making a copy with the original aligned correctly with the original scale, if the copy image is slanting, adjustment should be made by moving the front side of the original scale. Slanting as in A: Adjust the original scale in the direction of the arrow (A). Slanting as in B: Adjust the original scale in the direction of the ar). row (A
Original scale
Oct. 1995 © TOSHIBA CORP.
1 - 19
1550 ADJUSTMENT
(2)
Image distortion adjustment
Direction of movement
Step 1
A
B
Step 2
Direction of movement
C
D
After removing the original glass, make adjustment using the following procedure: Step 1: If the image is distorted as in A or B, make adjustment in the direction of copy movement using the mirror 2's adjustment screw to make the image as in C or D: In the case of A: Rotate the adjustment screw in the direction of tightening (clockwise). In the case of B: Rotate the adjustment screw in the direction of loosening (counter-clockwise).
Mirror 2
A
B
1550 ADJUSTMENT
1 - 20
Oct. 1995 © TOSHIBA CORP.
Step 2:
If the image is distorted as in C or D, using the mirror unit's adjustment screw, make adjustment in the direction perpendicular to that of copy movement to make the image normal:
D
C
In the case of C: Rotate the adjustment screw in the direction of tightening (clockwise). In the case of D: Rotate the adjustment screw in the direction of loosening (counter-clockwise.)
July 1996 Oct. 1995 © TOSHIBA CORP.
1 - 21 ®
1550 ADJUSTMENT
1.7
Mirror and Lens Adjustment
Checking and adjustment regarding the mirrors and the lens should be made by using the following procedure:
Focus/lateral reproduction-ratio adjustment (60) ~ (65) Carriages 1/2 adjustment Carriages 1/2 Inclined focus adjustment Lens unit Mirror unit Lateral deviation adjustment Lens unit Image distortion Mirrors 1/2
Slanted image adjustment Original scale
Focus/lateral reproduction-ratio adjustment (60) ~ (65)
Note: Do adjustment steps in the dotted-line boxes, as required.
Focus/lateral reproduction-ratio adjustment AJ: Codes 60 - 65 When the lens is replaced or when the focus or the lateral reproduction ratio is not correct, the following adjustment data need to be re-entered: Allowable input value Center value Lens position data (100%) Mirror position data (100%) Lens position data (200%) Mirror position data (200%) Lens position data (50%) Mirror position data (50%) (AJ"05" mode, code 60) (AJ"05" mode, code 61) (AJ"05" mode, code 62) (AJ"05" mode, code 63) (AJ"05" mode, code 64) (AJ"05" mode, code 65) 0~40 0~40 0~40 0~40 0~40 0~40 20 20 20 20 20 20
Adjustment should be done as follows:
Lens/mirror position values 100 % (60) 100 % (61)
Mirror position value 200 % (63)
Lens position value 200 % (62)
Mirror position value 50 % (65)
Lens position value 50 % (64)
Normally, adjustment steps in the dotted-line boxes are unnecessary.
[A] 100% focus and lateral reproduction-ratio adjustment (1) Make an actual-sized copy and check for the correct focus and lateral reproduction ratio; if adjustment is necessary, re-enter adjustment data as described below: a If the focus is inadequate and lateral reproduction ratio is smaller: Enter a smaller mirror-position value (code 61).
1550 ADJUSTMENT
1 - 22
Oct. 1995 © TOSHIBA CORP.
b If the focus is inadequate and the lateral reproduction ratio is enlarged: Enter a larger mirror-position value (code 61). c If the focus is adequate but the lateral reproduction ratio is reduced: Enter a larger lens-position value (code 60). d If the focus is adequate but the lateral reproduction ratio is increased: Enter a smaller lens-position value (code 60). Notes: 1. Moving either the lens or the mirror changes both the focus and the lateral reproduction ratio. However, the lens-position value mainly changes the lateral reproduction ratio and the mirror position value mainly changes the focus. 2. First adjust the focus, then the lateral reproduction ratio and check the focus again. 3. If the lateral reproduction ratio is not precisely adjusted (within ±0.5%), the focus cannot be correctly adjusted either. 4. The focus in the center of the image has more margin than that of any of the four corners of the image due to the characteristics of the lens. 5. For 200% and 50% reproduction ratios, adjustment of the normal focus (mirror position) makes the lateral reproduction ratio optimal, making it unnecessary to be adjusted. [B] 200% focus and lateral reproduction-ratio adjustment (1) (2) Make a 200% copy and check for the correct focus and lateral reproduction ratio. When the focus and the lateral reproduction ratio are inadequate, re-enter the values of codes 62 and 63 in the AJ "05" mode in the same way as for 100%. [C] 50% focus and lateral reproduction ratio adjustment (1) (2) Make a 50% copy and check for the correct focus and lateral reproduction ratio. When the focus and the lateral reproduction ratio are inadequate, re-enter the values of codes 64 and 65 in the AJ "05" mode in the same way as for 100 %. 1.8 Adjustment of Lateral Misplacement of the Lens Unit
The lens unit has adjustable mechanism. However, as the adjustment is performed at the time of shipping from the factory, no further adjustment is needed.
July 1996 Oct. 1995 © TOSHIBA CORP.
1 - 23 ®
1550 ADJUSTMENT
1.9 (1) (2) (3)
Exposure Adjustment While pressing keys "0" and '5" simultaneously, turn the power supply ON. The display shows "AJ" and indicates that the machine is in adjustment mode. Press the automatic exposure key to set the machine to manual exposure, and then select the center step. Adjust the exposure in accordance with the procedure shown in the chart below.
Adjustment sequence 1 2 *3 Manual exposure Automatic adjustment of automatic exposure Light (max.) Exposure mode Reproduction ratio 100% 50 ~ 200% 100% or appropriate reproduction *4 5 Dark (min.) Manual photo exposure ratio 100% 10 14 1 49 9 Adjustment code
* Make adjustment only when requested by the user.
When individual adjustment is required for manual, automatic and manual photo exposure in response to a request from the user, follow procedure (4). 1 Adjustment of 100% manual exposure
Operation Input code "1" using the digital keys , and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. (Note 2) [When density is low] Reduce the numerical value, using the "Zoom" key. (Note 2) 1-3 Press the "Interrupt" key and enter the numerical value in the memory. 1-4 1-5 Press the "Energy saver" key and make a test copy (one) If the image of the test copy is not satisfactory, repeat operations 1-1 through 1-4. 180 129 Display after operation (typical) 120 (Note 1) Zone A
Sequence 1-1 1-2
Note 1. Zone A: When the "Zoom" key is pressed, it increases (or decreases) in increments of one. 2. The numerical value in Zone A can be changed by using the digital keys as well as the "Zoom" key. 3. As adjustment of 154%, 50% and 200% manual exposure has already been performed, readjustment is not required. However, if individual adjustment is requested by the user, conduct the relevant adjustment in accordance with procedure (4), described later.
6447448
AJ
1550 ADJUSTMENT
1 - 24
Oct. 1995 © TOSHIBA CORP.
2 Automatic adjustment of automatic exposure
Sequence 2-0 2-1 2-2 Operation Be sure to adjust manual exposure (100%) beforehand. (Note1) Place the adjustment chart on the original glass. (Note 2) Enter code 49 using the digital keys and then press the Print key. * During automatic adjustment, the carriage will shift and the lens and mirror will move in accordance with the reproduction ratio. The exposure lamp will flash four times. * End of automatic adjustment is indicated by return of the display to test mode. Display after operation (typical) Refer to 1 AJ 169 199
AJ
Note 1. As automatic adjustment of automatic exposure is performed on the basis of manual exposure, be sure to conduct manual exposure beforehand. 2. Use white Ledger or A3 copy paper as the test chart. 3. When adjustment must be performed in accordance with the user's request, perform by referring to (4), to be described later. 4. Avoid opening the original cover, pressing keys on the control panel or turning the power OFF, during automatic adjustment. When changing the variable width of the key for manual exposure in accordance with the user's request, carry out 3 and 4, described below.
3 Changing the amount of variation in the light image density
Sequence 3-1 3-2 3-3 3-4 3-5 Operation Input code "9" using the digital keys and press the "Print" key. Use the "Zoom" key to increase the value to lighten the image (and vice versa). Press the "Interrupt" key to store the value. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 3-1 through 3-4.
4 Changing the amount of variation in the dark image density.
Sequence 4-1 4-2 4-3 4-4 4-5 Operation Input code "10" using the digital keys and press the "Print" key. Use the "Zoom" key to increase the value to lighten the image (and vice versa). Press the "Interrupt" key to store the value. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 4-1 through 4-4.
Oct. 1995 © TOSHIBA CORP.
1 - 25
1550 ADJUSTMENT
5 100% manual photo exposure adjustment
Sequence 5-1 5-2 Operation Input code "14" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 5-3 5-4 5-5 1442443 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 5-1 through 5-4. Display after operation (typical) 128 138 118
AJ
(4) Adjust exposure in accordance with the procedures shown in the charts below, if requested by the user for separate adjustment of manual/auto-exposure.
Adjustment sequence 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Manual photo exposure Light (max.) Dark (min.) Automatic exposure Manual exposure center Reproduction ratio 100% 154% 50% 200% 100% 154% 50% 100% 100 % or appropriate ratio 100% 154% 50% 200%
Exposure mode
Adjustment code 1 2 3 4 5 6 7 8 9 10 14 15 16 17
1550 ADJUSTMENT
1 - 26
Oct. 1995 © TOSHIBA CORP.
1 Perform the 100% manual exposure adjustment (3)- 1. 2 154% manual exposure adjustment
Sequence 2-1 2-2 Operation Input code "2" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 2-3 2-4 2-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 2-1 through 2-4.
144424443
Display after operation (typical) 130 149 126
AJ
3 50% manual exposure adjustment
Sequence 3-1 3-2 Operation Input code "3" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 3-3 3-4 3-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 3-1 through 3-4.
144424443
Display after operation (typical) 103 109 096
AJ
4 200% manual exposure adjustment
Sequence 4-1 4-2 Operation Input code "4" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 4-3 4-4 4-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 4-1 through 4-4.
144424443
Display after operation (typical) 175 186 166
AJ
Oct. 1995 © TOSHIBA CORP.
1 - 27
1550 ADJUSTMENT
5 100% automatic exposure adjustment
Sequence 5-1 5-2 Operation Input code "5" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 5-3 5-4 5-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 5-1 through 5-4.
144424443
Display after operation (typical) 115 127 107
AJ
6 154% automatic exposure adjustment
Sequence 6-1 6-2 Operation Input code "6" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 6-3 6-4 6-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 6-1 through 6-4.
144424443
Display after operation (typical) 127 139 113
AJ
7 50% automatic exposure adjustment
Sequence 7-1 7-2 Operation Input code "7" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 7-3 7-4 7-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 7-1 through 7-4.
144424443
Display after operation (typical) 094 087 103
AJ
1550 ADJUSTMENT
1 - 28
Oct. 1995 © TOSHIBA CORP.
8 200% automatic exposure adjustment
Sequence 8-1 8-2 Operation Input code "8" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 8-3 8-4 8-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 8-1 through 8-4.
144424443
Display after operation (typical) 141 149 133
AJ
9 When changing the variable width of the key for manual exposure at the user's request, change the amount of variation in the light/dark image density in (3)- 3 and 4. !º Perform the 100% manual photo exposure adjustment in (3)- 5. !¡ 154% manual photo exposure adjustment
Sequence 11-1 11-2 Operation Input code "15" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 11-3 11-4 11-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 11-1 through 11-4.
144424443
Display after operation (typical) 128 138 118
AJ
!TM 50% manual photo exposure adjustment
Sequence 12-1 12-2 Operation Input code "16" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 12-3 12-4 12-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 12-1 through 12-4.
144424443
Display after operation (typical) 128 138 118
AJ
Oct. 1995 © TOSHIBA CORP.
1 - 29
1550 ADJUSTMENT
!£ 200% manual photo exposure adjustment
Sequence 13-1 13-2 Operation Input code "17" using the digital keys, and press the "Print" key. [When density is high] Increase the numerical value, using the "Zoom" key. [When density is low] Decrease the numerical value, using the "Zoom" key. 13-3 13-4 13-5 Press the "Interrupt" key and store the numerical value in the memory. Press the "Energy saver" key and make a test copy. If the image density of the test copy is not satisfactory, repeat operations 13-1 through 13-4.
144424443
Display after operation (typical) 128 138 118
AJ
1550 ADJUSTMENT
1 - 30
Oct. 1995 © TOSHIBA CORP.
1.10 Checking and Adjustment of Grid Bias/Transfer/Separation Output Checking and adjustment of grid bias/transfer/separation output is necessary when the high-voltage transformer is replaced. At adjustment mode "05"
64448
"38" grid bias (Black) "39" transfer charger "40" separation charger
Notes: 1. A digital tester with an input resistance of 10 M or more should be used. 1. Take out the process unit, and then remove the developer unit, main charger unit and drum. 2. 3. Remove the main blade. Using the drum shaft, install the adjustment jig in the cleaner unit and then set the main charger unit.
Jig
4.
Set the process unit into the copier and fasten the earth wire of the jig to the machine frame with a screw. Then connect the black (WH) side of the jig's 3P-connector to the () terminal and the red (WH) side to the (+) terminal of the digital tester, respectively.
Earth wire
5.
Push down the upper unit. (Be careful not to allow the jig's cord to be pinched).
3P connector
For measuring the transfer/separation values
Oct. 1995 © TOSHIBA CORP.
1 - 31
1550 ADJUSTMENT
6.
Turn on the door switch forecefully.
Note: When measuring the grid bias*, route the (+) terminal of the digital tester through the charger cleaning shaft gap on the front side of the process unit and contact the charger plate spring with the (+) terminal.
Frame earth
For measuring the grid bias
7.
Setting of digital tester · · · In the case of grid bias: In the case of transfer: Set at 1000 VDC range Set at 2 VDC range
In the case of separation: Set at 2 VAC range
0 5 Power
8.
AJ
9.
Code Print (38,39,40 or 42)
128
10. Check voltage value using digital tester · *Grid bias: · · Transfer: Separation: 692 ±5 V (Black) 586 ±20mV AC514 ±21mV (effective value displayed) AC464 ±18mV (average value displayed)
1550 ADJUSTMENT
1 - 32
Oct. 1995 © TOSHIBA CORP.
11. When adjustment is required
Zoom (Adjust voltage value) Interruption (Memory) AJ
Note: When voiding occurs on a halftone copy, reduce the separation output. When deficiency in separation from the drum occurs, or the user uses thin paper frequently, increase the separation output. Be careful to avoid over-increasing or over-decreasing separation output.
Oct. 1995 © TOSHIBA CORP.
1 - 33
1550 ADJUSTMENT
1.11 Checking and Adjustment of Developer Bias Output (Use code 40 in test mode 05.) 1. 2. Remove the process unit. How to connect digital tester to the machine · Connect (+) terminal of digital tester to bias connector (OUT 5) · Connect () common terminal of digital tester to machine frame. · Set digital tester to 1000 VDC range. 3. OUT 5
0 5 Power
AJ
Frame earth
VR81
4. 5.
4 0
Print
128
Check voltage value using digital tester. DC200 V ±5 V
6.
If adjustment is required, perform adjustment through VR81 (Bias). (Do not touch the zoom keys and the digital keys.)
7.
C/S (Output stop)
AJ
Note: If an overall misty effect is observed, even though exposure is sufficient, increase bias output through VR81 (Bias). However, when bias output is over-increased, the image contrast declines, causing a generation of bias leakage, and the carrier tends to stick to the drum easily.
1550 ADJUSTMENT
1 - 34
Oct. 1995 © TOSHIBA CORP.
1.12 Drum-to-Sleeve Gap Adjustment No adjustment is necessary since the guide contacting method is adopted for this machine.
Guide roller
Guide roller
1.13 Development Pole Adjustment (1) (2) Take out the developer unit from the process unit. Adjustment should be made using the adjuster plate on the rear side: After loosening the fixing screw of the adjuster plate, move and adjust it, using the adjustment mark as a guide. Note, however, that since the pole position was adjusted using a special jig at the factory, it should be adjusted only when necessary. When its fixing screw needs to be loosened for reasons of disassembly, etc., the initial position of the adjuster plate should be remembered or marked for later reassembly. However, whenever the magnetic roller is replaced, the adjustment of the pole-position height (H) shall be made first.
H=23.8mm Adjuster Marking
Oct. 1995 © TOSHIBA CORP.
1 - 35
1550 ADJUSTMENT
1.14 Doctor-to-Sleeve Gap Jig to be used: Doctor sleeve jig Procedure: (1) (2) (3) (4) (5) Remove the developer unit from the process unit. Remove the top cover and then the developer material. Remove the charge unit and the drum. Reinstall the developer unit from which the developer material is removed. Pull down the developer unit pressure lever to make a pressurized condition.
Adjustment method: (1) Make sure jig step "0.45" can be inserted between the sleeve and the leveler and moves smoothly between the front and rear, and also jig step "0.55" cannnot be inserted. (2) Adjust the gap between the sleeve and the leveler with jig step "0.50" by tightening the two leveler adjustment screws twice if necessary. After the adjustment, make sure using the same method specified above that jig step "0.45" can be inserted smoothly and jig step "0.55" cannot be inserted. Notes: 1. When checking or adjusting the gap, make the process unit level. 2. When checking or adjusting the gap, align the marking position of the sleeve to the position of the leveler. 3. When installing the developer-unit top cover, after having inserted the leaf spring hook, fasten it firmly. 4. After reinstalling the top cover, check that the rubber seal is placed over the side seals correctly.
Doctor sleeve jig, Step "0.45"
1550 ADJUSTMENT
1 - 36 ®
July 1996 Oct. 1995 © TOSHIBA CORP.
1.15 Auto-Toner Sensor Adjustment After the developer material is replaced, the auto-toner sensor needs to be adjusted. (Code "0" in the 05 adjustment mode) 1.
0 5 Power
AJ
2.
0
Print
(Example)
19
3.
Approx. 3 minutes later
(Example)
24
If the value is not 24, make adjustment with zoom keys.
4.
INTERRUPT
AJ
0
9
5.
Install the toner cartridge.
Oct. 1995 © TOSHIBA CORP.
1 - 37
1550 ADJUSTMENT
1.16 Adjustment for Scanning Motor Speed, Aligning Amount and Lead Edge Position Adjustment precedure:
Scanning motor speed Aligning amount Cassette *(82)¡(89)¡(81)¡(83)¡ (21) (PFU cassette (80) optional) Lead edge position Lead edge position Cassette~bypass feeding PFU (53) ~ (56) (57)
Note: Normally, Adjustments in the dotted-line boxes are unnecessary. First of all adjust code 82 because the adjustment amount is based on it.
1.16.1
Scanning motor adjustment (Check and adjustment of the reproduction ratio in the direction of copy movement)
Direction of copy paper movement
1. Place a ruler on the glass and make a 100% A4-size copy. 2. Two or three minutes later, compare the copied ruler and the actual one.
3. If necessary, make adjustment as follows:
0 5 Power 2 1 PRINT INTERRUPT ENERGY SAVER Test copy
* Adjust with numeric or zoom keys
* Larger values make the copy to be enlarged.
1.16.2
Aligning amount adjustment
If necessary, you can extend the feed roller life by increasing the aligning amount. (Use codes 82/89/81/83/80 in the test mode "05") 1.
0 5 Power 8 2 (Cassette) PRINT 08 (Current value) Test copy 0 9 1 5 INTERRUPT (New set value)
ENERGY SAVER
Code # 82 89 Cassette 81 83 PFU 80 Copy size A3(LD) A4-R(LT-R) A4(LT) B5 A4
1550 ADJUSTMENT
1 - 38 ®
July 1996 Oct. 1995 © TOSHIBA CORP.
Notes · There is no need to do this for machines which do not use B5-sized paper. · There is no need to do this for machines which are equipped with a PFU.
2. Check the copy for any image void and if there is any, reduce the new value likes "15" ¡ "14" ¡ "13" ... until no image void occurs. Check for no paper misfeeding with the new value.
Voiding
50`
100
mm
1.16.3
Lead edge adjustment
Since incorrect lead-edge position can also occur due to paper quality, feed roller surface condition, etc, first check these itmes before starting adjustment.
Note: The lead edge position of each paper source can be adjusted independently. However, if adjustment for bypass feeding is necessary, make adjustment in order of the cassette ¡ bypass.
Cassette 100% 200% (53) (54) 50% (55) Bypass 100% (56) PFU cassette 100% (57)
(Use the appropriate codes in the "05" test mode.) Example: Adjustment for the cassette (100%) 1.
0 5 Power AJ ENERGY SAVER Test copy for checking the lead edge position
2.
5
3
PRINT
(Example)
11
July 1996 Oct. 1995 © TOSHIBA CORP.
1 - 39 ®
1550 ADJUSTMENT
Direction of copy paper movement
A=8
B = 12
Document
Copy
3. Calculate the new set value:
New value= Current value + AB 812 = 11 + = 115 = 6 0.8 0.8
4. 6
6
5. INTERRUPT
AJ
6. Repeat step 2 onward for manual feeding and PFU cassette. 7. Press keys 0 and 9 simultaneously to clear the test mode.
1.17 Registering/Changing ID Codes (Access control mode) When ID codes are registered, copies are classified according to each ID code. To make copies, a registered ID code must be entered using numeric keys.
0 8 7 PRINT 1 INTERRUPT Power OFF
Power
1550 ADJUSTMENT
1 - 40 ®
July 1996 Oct. 1995 © TOSHIBA CORP.
· Up to 10 ID codes can be registered. Input a number with three figures. · Normally, the copier will not start unless one of the ID codes registered is keyed in.
8
PRINT Input an ID code 100% ENERGY SAVER Power OFF
Power
· Copy quantity can be recorded at every codes. · The counter value is 000000 ~ 999999.
8
PRINT Input an ID code PRINT
ZOOM UP Upper 3 figures displayed
PRINT Lower 3 figures displayed PRINT
Power
· It is possible to display codes registered in order.
8
PRINT
PRINT Code flashes
Completed ("---" displayed)
Power
· Registered codes can be deleted one by one.
8
PRINT Digital key Code input PRINT ZOOM DOWN key ENERGY SAVER
Power
· The counter value can be changed. · For example the counter value of 012345 is changed to 123456.
8
PRINT Input an ID code PRINT
ZOOM UP key Upper 3 figures displayed ENERGY SAVER
Power
Input new counter value Input new counter value
ENERGY SAVER key Lower 3 figures displayed
Oct. 1995 © TOSHIBA CORP. July 1996
1 - 41 ®
1550 ADJUSTMENT
1.18 User Exposure-Adjustment Mode This mode allows the user to perform some of the exposure adjustment modes if he desires to do so. The user can adjust the following three modes: · Manual exposure 100% (05 mode, code 1) · Auto exposure 100% (05 mode, code 5) · Photo exposure 100% (05 mode, code 14) A. Auto exposure adjustment (AJ5) (1) Press the auto-exposure key to make the auto-exposure LED to come on.
ON
(2) While pressing the auto-exposure key, press the ZOOM UP (or ZOOM DOWN) key, and the light MAX (or dark MAX) LED flashes. (3) Each time the light MAX (or dark MAX) LED flashes, the AJ value is increased (or decreased) by 2.
Flashing ON
(4) When you release one of the keys you pressed simultaneously, the display goes back to step (1), completing the adjustment.
ON
B. Manual exposure adjustment 100% (AJ1) (1) Press the auto-exposure key to make the center LED of the manual exposure to come on. (2) Steps (2)(4) are same as for the auto exposure adjustment.
ON ON
Flashing
ON
1550 ADJUSTMENT
1 - 42
Oct. 1995 © TOSHIBA CORP.
C. Photo exposure adjustment 100% (AJ14) (1) Press the PHOTO key to make the photo LED and the manual exposure center LED to come on.
ON PHOTO
(2) While pressing the PHOTO key, press the ZOOM UP (or ZOOM DOWN) key, and the light MAX (or dark MAX) LED flashes. (3) Steps (3)(4) are the same as for the auto exposure adjustment.
ON
Flashing ON
Oct. 1995 © TOSHIBA CORP.
1 - 43
1550 ADJUSTMENT
2. PERIODICAL MAINTENANCE
Inspection every 60,000 copies (1) Preparation 1) Ask the key operator about the present machine conditions and note them down. 2) Before starting the maintenance work, make and retain a few sample copies for later comparison. 3) Turn off the power switch and disconnect the power cord plug. (2) The period inspection should be conducted in accordance with the PERIODIC INSPECTION CHECK LIST shown below. Perform the inspection by referring to the figures, as well as to the explanations in the Service Manual when necessary. (3) After the inspection has been completed, plug in the machine and turn the power switch on, and confirm the general operation of the machine by making a few copies and comparing them to those made previously. Inspection and over-haul every 180,000 copies (1) Replace all the cosumables. (2) Check to see if there is any damage to parts of the drive section (gear, pulley, timing belt, etc.). Replace parts on principle if damaged. (3) Check to see if there is any damage or peeling of adhered parts (tape, Mylar, etc.). Replace any affected parts. (4) Check to see if all the switches and sensors operate properly. Replace them if they are not operating properly. (5) Clean the inside of the machine thoroughly. 2.1 Periodic Inspection Check List Symbols used in the Periodic Inspection Check List
Cleaning (A) Cleaning with alcohol (D) Cleaning with a slightly damp cloth (P) Cleaning with Pit Clean (RC60) Cleaning with soft pad, cloth, or cleaner (vacuum cleaner) Lubrication (V) Vacuoline (H) Heavy-medium oil (L) Laune 40 Application (SI) Silicone oil ( (M) Molytherm (W) White grease (Molycoat) ) Replace in event of deformation or other damage Replacement (20) Every 20,000 copies (40) Every 40,000 copies (60) Every 60,000 copies Same thereafter Date Customer's Name Machine No. Inspector Remarks
Oct. 1995 © TOSHIBA CORP.
2-1
1550
PERIODICAL MAINTENANCE
PERIODIC INSPECTION CHECK LIST
*K=1,000 Section Cleaner Item to check 1 Entire Unit 2 Main blade 3 Toner bag 4 Recovery blade 5 Drum bushings Drum Original table Optical system 10 Drum shaft 11 Drum 12 Glass 13 Original cover 20 Mirror 1 21 Mirror 2 22 Mirror 3 23 Mirror 4 24 Mirror 5 25 Mirror 6 26 Slit glass 27 Reflector 28 Lens 29 Exposure lamp 30 Auto exposure sensor 31 Reproduction ratio mechanism (mirrors) 32 Reproduction ratio mechanism (lens) 33 Sliding sheets (front/rear) 34 Air filter 35 Ozone filter Chargers 40 Charger case 41 LED eraser array 42 Charger wire 43 Terminal contact 44 Grid 45 Discharge lamp Developer unit 50 Entire unit 51 Developer material 52 Rubber seal ^º *4 A ^º ^º Use sandpaper as required ^º A Replace when heavily stained A A or A or A or A or A or A or A or A or A or A (both sides) ^º or more *3 Clean at Lubricate at Replace at Check while 60*K copies 60*K copies x *K copies ON Remarks
^º @º
*1 (See page 2-6) Key operator item *2
1550 PERIODICAL MAINTENANCE
2 - 2®
Oct. 1995 © TOSHIBA CORP. July 1996
*K=1,000 Section Paper feeding section 60 61 62 63 64 65 66 67 68 Fuser unit 71 72 73 74 75 76 77 Drive system Sorter kit Item to check Pick-up roller Paper feed roller Separation roller Aligning roller Paper guide Brush Transport guide section Transport roller (left) Transport roller (right) Heat roller entrance guide Rubber roller (lower) Cleaning felt roller Thermistor Scrapers (for heat rollers) Heat roller exit guide Exit roller Clean at Lubricate at Replace at Check while 60*K copies 60*K copies x *K copies ON A A A A Remarks
` SI
*10
A A P P P or P P P A
` SI ` SI `/¤, `/°, ^º
MY-1004 *9 MY-1004 *9 *5 *6 *7 *8
70 Teflon roller (upper)
78 Cleaning blade 80 Drive gear (teeth) 81 Stad of drive gear 82 Shaft and bushing ` SI ` SI ` SI *11
Oct. 1995 © TOSHIBA CORP. July 1996
2-3®
1550
PERIODICAL MAINTENANCE
@¶ @ª #¢ $ #TM@· 12 $¡ @ !TM!£ #£
#º
$º $TM$£
@¡ @º @£ #¡ @¢ @§ %º%¡%TM
1550 PERIODICAL MAINTENANCE
$¢ !¡ ^¢ ^¡ ^¶ ^· ^TM ^¡ ^TM &¶ &§ & &TM &¡ ^§ 3 4 5!º $TM$£ ^ ^£ ^º
@TM
#
&£
&·
&º
2-4
&¢
&¶
Oct. 1995 © TOSHIBA CORP.
*º *º
#TM
*º *º
July 1996 Oct. 1995 © TOSHIBA CORP.
#¡
2-5 ®
1550
PERIODICAL MAINTENANCE
*º*¡
*º
*º
Remarks in the PERIODIC INSPECTION CHECK LIST: *1. Main blade If poor cleaning occurs even before the replacement number of copies are made due to the adhesion of paper dust, etc., since the blade edge may have been damaged, replace the main blade as required. Cleaning the edge with a dry cotton can damage it, so wipe the edge lightly using a soft cloth soaked with alcohol; be sure to check for no adhesion of cloth fibers. *2. Recovery blade If the edge of the recovery blade is damaged, replace the blade. *3 Drum Refer to paragraph 3.2. *4 Developer material When the developer material is replaced, be sure to check the auto-toner sensor. *5 Teflon roller 14243
Refer to paragraph 3.5.
*6. Rubber roller
*7. Cleaning felt roller Refer to paragraph 3.3. *8. Scraper Scraper whose tip is damaged should be replaced. If you try to scrape off the toner firmly caked on the tip forcefully, it may easily be damaged. So replace scrapers if their tip is heavily stained. *9. Transport roller When oiling the transport roller, after having disassembled and cleaned the roller, apply a drop of silicone oil, and then while turning the bushing to spread the oil, insert it. *10.Aligning roller After disassembling the upper or lower aligning roller for cleaning, apply one drop of silicone oil to the inside of the bushing (sliding portion of the aligning roller). When reassembly has been accomplished, rotate the roller to facilitate the spreading of the oil.
1550 PERIODICAL MAINTENANCE
2-6 ®
Oct. 1995 © TOSHIBA CORP. July 1996
*11.Shaft and bushing After having disassembled and cleaned the sorter kit roller, apply a drop of silicone oil to the shaft and the shaft interior, reassemble the roller, and then rotate it to spread the oil. This oiling is performed as a countermeasure to abnormal noise.
Oiling to the shaft (Silicone oil) Oiling to the internal surface of the bushing (Silicone oil)
July 1996 Oct. 1995 © TOSHIBA CORP.
2-7®
1550
PERIODICAL MAINTENANCE
2.2
Oiling Cycle Table
No.* 63 67 68 80 81 82
Item to be oiled Aligning roller Transport roller (left) Transport roller (right) Drive gears (teeth) Stad of drive gear Shaft and bushing
Type of oil Silicone oil Silicone oil Silicone oil Silicone oil Silicone oil Silicone oil
Oiling cycle Number of copies x 1000 60 60 60 60 60 60
* Numbers correspond with those in the PERIODIC INSPECTION CHECK LIST. Note: Do not give any oil to rollers, belts and belt pulleys.
2.3
Supplies/Parts Replacement Schedule
No.* 2 3
Parts name Main blade Toner bag
Code name PS-BL1550D PS-TB1550 PS-TB1550E (for Europe) PS-OD1550 -- -- -- PS-ZD1550 PS-HR1550U PS-HR2510L PS-SR1550H
Replacement cycle (Number of copies x 1000) 60 20
**Parts List Page/item No. P17, I34 P6, I38
11 35 42 44 51 70 72 73
Drum Ozone filter Charger wire Grid Developer material Teflon roller (upper) Rubber roller (lower) Cleaning felt roller
60 or more 60 60 60 60 120 180 60
P14, I1 P3, I7 P15, I8/P16, I9 P15, I13 -- P19, I2 P20, I5 P19, I12
* Numbers correspond with those in the PERIODIC INSPECTION CHECK LIST. ** Refer to SERVICE PARTS LIST ED-1550.
2.4
Jig List Door switch jig Drum jig Wire holder jig Doctor sleeve jig **P100, I1 **P100, I2 **P100, I3 **P100, I4
** Refer to SERVICE PARTS LIST ED-1550.
1550 PERIODICAL MAINTENANCE
2-8®
Oct. 1995 © TOSHIBA CORP. July 1996
3. PRECAUTIONS FOR STORING AND HANDLING SUPPLIES
3.1 Precautions for Storing Toshiba Supplies Toner and developer should be stored in a place where the ambient temperature is below 35°C (95°F) and should also be protected against direct sunlight during transportation. B. OPC Drum Similarly to the toner and developer, OPC drums should be stored in a dark place where the ambient temperature is below 35°C. Be sure to avoid those places where drums may be subjected to high humidity, chemicals and/or their fumes. C. Cleaning Blade and Cleaning Felt These items should be stored in a flat place where the ambient temperature is below 35°C and should also be protected against high humidity, chemicals and/or their fumes. D. Heat Roller and Pressure Roller Avoid those places where heat rollers may be subjected to high humidity, chemicals and/or their fumes. E. Copy Paper Avoid storing copy paper in a place where the humidity is high. After a package is opened, be sure to place and store it in a storage bag. 3.2 Inspecting and Cleaning OPC Drum
A. Toner and Developer
A. Precautions for Handling (1) Use of gloves If fingerprints or oils adhere to the drum surface (which degrades the characteristics of the photoconductor), this affects the quality of the copy image; therefore, do not touch the drum surface with your bare hands. (2) Removing and reinstalling drums Since the OPC drum surface is very sensitive, be sure to handle the drum carefully when installing and removing it so as not damage its surface. Be sure to apply patting powder (lubricant) to the entire surface of the drum before installing the drum into the machine. Notes: 1. Application of the patting powder is to reduce the friction between the drum and cleaning blade. If the application of patting powder is neglected, the drum and cleaning blade may be damaged. 2. When paper fibers adhere to the cleaning blade edge, they may reduce the cleaning efficiency and, in addition, may damage the blade and the drum. So, if any fibers are found adhering to the blade, be sure to remove them carefully using a soft pad.
Oct. 1995 © TOSHIBA CORP.
3-1
1550 SUPPLIES
3.
Installation of Machine and Storage of Drum Avoid installing the machine in such places where it may be subjected to high temperature, high humidity, chemicals and their fumes. Do not leave drums in a bright place for a long time, otherwise the drum will fatigue and will not produce sufficient image density immediately after being installed in the machine. However, this effect may decrease as time elapses.
4.
Cleaning the Drum At periodic maintenance calls, wipe clean the entire surface of the drum using the designated cleaning cotton or soft pad. Use sufficiently thick cleaning cotton so as not to scratch the drum surface inadvertently with your fingertips or nails. Also, remove your ring and wristwatch before starting cleaning work to prevent accidental damage to the drum. Be sure not to use other organic solvents or silicone oil as they will have an undesirable effect on the drum.
5.
Repairing Scratches on OPC Surface If a scratch exists on the OPC surface through which the aluminium substrate can be seen, no copy image will be produced on this area and, in addition, the cleaning blade will be damaged so replacement with a new drum will be necessary.
6.
Collecting Used OPC Drums For disposition of used OPC drums, it is recommended to proceed according to the corresponding regional environmental regulations.
3.3
Checking and Replacing Cleaning Felt Roller Never allow solvents such as thinner, etc. to adhere to the cleaning felt roller.
(1) Precautions for Handling (2) Poor Heat-Roller Cleaning and Countermeasures Poor heat-roller cleaning should be judged by the deposited toner on the roller. When the felt roller has heavy toner deposits, the heat-roller surface may be stained with toner. If this happens, replace the cleaning felt roller. The cleaning felt roller will be gradually degraded due to subjection to the heat from the heat roller over a long period of time; therefore, replace it preferably after about 60,000 copies have been made.
1550 SUPPLIES
3-2
Oct. 1995 © TOSHIBA CORP.
3.4
Checking Drum Cleaning Blade Pay attention to the following points as the cleaning blade life is determined by its edge condition: 1. Do not allow a hard object to hit on or rub against the blade edge. Do not rub the edge with a cloth. 2. Do not leave oil (or fingerprints, etc.) on the edge. 3. Do not put solvents such as thinner, etc. on the edge. 4. Do not deposit dirt such as paper fibers, etc. on the blade. 5. Do not place the blade near a heat source.
(1) Precautions for Handling
3.5
Checking and Cleaning Upper and Lower Heat Rollers · Upper Heat Roller
(1) Precautions for Handling 1. Do not leave oil (fingerprints, etc.) on the heat roller. 2. Be extremely careful not to allow a hard object to hit on or rub against the roller because the thin Teflon layer coated on the alminum substrate is easily damaged and, if damaged, will result in poor drum cleaning. · Lower Pressure Roller 1. Do not leave oil (fingerprints, etc.) on the roller surface. (2) Checking 1. Check for staining and damage to the heat roller and clean or replace if necessary. 2. Clean the separation claws and check for chipped claws. 3. Check cleaning condition of cleaning felt. 4. Check the thermistor for proper contact with the heat roller. 5. Check the fused condition of the toner image. 6. Check the heat rollers for proper rotation. (3) Cleaning Procedure for Heat Rollers When the heat roller becomes dirty, it will cause paper jamming. In that case, wipe the roller surface clean with cotton soaked in alcohol or heat-roller cleaner "RC60" which contains silicone oil. For a better cleaning effect, clean the roller while it is still warm. Note: Be careful not to rub against the Teflon-coated surface with your fingernails or hard objects because it is easily damaged. Do not use silicone oil on the upper heat roller.
Oct. 1995 © TOSHIBA CORP.
3-3
1550 SUPPLIES
4. TROUBLESHOOTING
(