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JP750 Operating Instructions Operation Optional Functions Replenishing Supplies Troubleshooting Remarks Specifications For safety, please read this manual carefully before you use this product and keep it handy for future reference.
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For good print quality, Ricoh recommends that you use genuine Ricoh master and ink. Ricoh shall not be responsible for any damage or expense that might result from the use of parts other than genuine Ricoh parts with your Ricoh office products.
TABLE OF CONTENTS Safety Information ....................1 Safety During Operation..................... 1 How to Read this Manual ..................3 What You Can Do with this Machine..............4 Machine Exterior ....................6 Machine Interior .....................7 Control Panel......................8 Keys ...........................8 Indicators........................9 1. Operation Printing Paper ......................
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3. Replenishing Supplies Loading Paper into the Paper Feed Tray ............37 Replenishing Paper....................37 Changing the Paper Size ..................38 j ) Lights .............39 When the Add Ink Indicator (j Master Roll Replacement ..................41 4. Troubleshooting If Your Machine does not Operate as You Want ..........43 x Clearing Misfeeds ...................
Safety Information When using this machine, the following safety precautions should always be fol- lowed. Safety During Operation In this manual, the following important symbols are used: R WARNING: Indicates a potentially hazardous situation which, if instructions are not followed, could result in death or serious injury. R CAUTION: Indicates a potentially hazardous situation which, if instructions are not followed, may result in minor or moderate injury or damage to property.
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R CAUTION: • Protect the machine from dampness or wet weather, such as rain, snow. • Unplug the power cord from the wall outlet before you move the machine. While moving the machine, you should take care that the power cord will not be damaged under the machine.
How to Read this Manual Symbols In this manual, the following symbols are used: R WARNING: This symbol indicates a potentially hazardous situation that might result in death or serious injury when you misuse the machine without following the in- structions under this symbol.
What You Can Do with this Machine Below is a quick summary of this machine's features and where to look in this manual for more information. ❖ ❖ ❖ ❖ Standard Printing See p.15 “Standard Printing”. ❖ ❖ ❖ ❖ Adjusting the Print Image Position See p.18 “Adjusting the Print Image Position”.
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❖ ❖ ❖ ❖ Combining Originals onto One Print See p.29 “Combine—Combining Two Originals onto One Print”. ZCTX040E ❖ ❖ ❖ ❖ Making Colour Prints See p.33 “Making Colour Prints”. ❖ ❖ ❖ ❖ Printing in Two Colours See p.35 “Printing in Two Colours”.
Machine Exterior Front door Feed roller pressure lever Open for access to the inside of the ma- Use to adjust the contact pressure of the chine. paper feed roller according to the paper thickness. Original delivery tray Paper feed tray The scanned original is delivered here.
Machine Interior Document feeder Paper delivery tray Place the original in the document feeder Completed prints are delivered here. one sheet at a time. Drum unit Main switch The master is wrapped around this unit. Use to turn the power on or off. Ink holder lock lever Master eject box Release this lever in order to pull out the...
Control Panel Keys { { { { Image Density} } } } key { { { { Combine} } } } key Press to make prints darker or lighter. See Press to combine originals onto one print. p.20 “Adjusting the Print Image Densi- See p.29 “Combine—Combining Two ty”.
Indicators M: Open Cover/Unit indicator Magnification indicators See p.55 “When the Open Cover/Unit In- Show the preset magnification ratio se- dicator (M) Lights”. lected. See p.23 “Preset Reduce/En- x: Misfeed indicator large—Reducing and Enlarging Using Preset Ratios”. See p.45 “x Clearing Misfeeds”. B: Load Paper indicator Machine indicators Show the jammed area with the x indi-...
1. Operation Printing Paper The following types of print paper are not recommended for this machine. • Paper smaller than 90 mm × 140 mm, 3.6" × 5.6" • Paper larger than 275 mm × 395 mm, 10.8" ×15.6" • Paper heavier than 127.9 g/m , 34.0 lb •...
Operation Originals Note ❒ Originals that can be set in the document feeder are as follows: • Maximum size: 275 × 395 mm, 10.8" × 15.6" • Minimum size: 90 × 140 mm, 3.6" × 5.6" • Maximum weight: 127.9 g/m , 34.0 lb •...
Printing Preparations Printing Preparations C C C C Load paper into the paper feed Loading Paper tray. A A A A Lower the paper feed tray adjust- ment lever. Note ❒ Correct the paper curl before setting the paper. If you cannot B B B B Release the paper feed side plate do so, stack the paper with the...
Operation D D D D Make sure that the paper feed Preparing the Paper Delivery side plates touch the paper light- Tray ly. Shift the lock levers back to their original positions. A A A A Adjust the paper delivery side plates to match the paper size.
Standard Printing Standard Printing B B B B Press the { { { { Master Making} } } } key. - Printing In this manual, the word, “printing” is used as opposed to “copying” in or- der to distinguish between the proc- ess that your machine uses to make prints, and the process used by a standard copier machine.
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Operation D D D D Enter the number of prints re- quired with the number keys. Note ❒ Up to 9999 prints can be entered at a time. ❒ To change the number entered, press the { { { { Clear/Stop} } } } key and enter the new number.
After Printing After Printing A A A A Lower the paper feed tray adjust- ment lever and remove the paper from the paper feed tray. B B B B Remove the prints from the paper delivery tray. C C C C Turn off the main switch.
Operation Adjusting the Print Image Position A A A A After master making, you can adjust Press the left { { { { Image Position} } } } key the print image position to suit your to move the image forwards, and needs.
Adjusting the Print Image Position ❖ ❖ ❖ ❖ Shifting the image to the left Shifting the Print Image Shift the paper towards the back of the machine. Position to the Right or Left GRLEFT0E Note * Paper feed direction ❒...
Operation Adjusting the Print Image Density You can adjust the print image densi- After Making a Master ty to suit your needs. There are two ways to do this: A A A A Press the { { { { Speed} } } } key to decrease ❖...
Changing the Printing Speed Changing the Printing Speed Use the { { { { Speed} } } } key to adjust the speed of the machine to suit the im- age density and paper type. A A A A Press the { { { { Speed} } } } key to select the printing speed.
Operation Stopping the Machine during the Multi-print When You Want to Stop the When You Want to Change the Machine during the Multi-print Number of Prints Entered or Run and Print the Next Check the Completed Prints Original A A A A Press the { { { { Clear/Stop} } } } key.
Preset Reduce/Enlarge—Reducing and Enlarging Using Preset Ratios Preset Reduce/Enlarge—Reducing and Enlarging Using Preset Ratios ❒ You can select a ratio regardless of You can select a preset ratio for print- ing. the size of an original or printing paper. With some ratios, parts of the image might not be printed or margins will appear on prints.
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Operation C C C C ❖ ❖ ❖ ❖ Enlargement (Metric version) Place the original in the docu- m e nt fe e der a nd sp ec ify the Indica- Original Print number of prints. Size Size large- ment D D D D Press the { { { { Master Making} } } } key.
Printing on Different Types of Paper Thickness Printing on Different Types of Paper Thickness B B B B Depending on the thickness of the pa- Make sure that the paper feed per that you are printing on, you need side plates touch the paper light- to perform the following steps.
Operation Separation Pressure Lever A A A A To prevent double-feed, adjust the paper separation pressure us- ing the separation pressure lever. Note ❒ Paper separation pressure can be adjusted according to the pa- per weights as shown in the fol- lowing table.
Selecting Original Type Selecting Original Type B B B B Select one of the following two types Press the { { { { Image Density} } } } key to ad- to suit your originals: just the image density. ❖ ❖ ❖ ❖ Photo mode Delicate tones of photographs and pictures can be reproduced with this mode.
Operation Auto Cycle—Processing a Master and Making Prints in One Step Use the { { { { Auto Cycle} } } } key to process D D D D Press the { { { { Master Making} } } } key. masters and make prints in one step.
Combine—Combining Two Originals onto One Print Combine—Combining Two Originals onto One Print You can print two separate originals For a reduction ratio of 87%, use the { { { { Enlarge/Reduce} } } } key to select on a single sheet of paper. The follow- “A4VB5”.
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Operation A A A A E E E E Press the { { { { Combine} } } } key. The beeper sounds after the first original has been stored. Place the second original face down in the document feeder. Note ❒...
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Combine—Combining Two Originals onto One Print H H H H Enter the number of prints with the number keys. I I I I Press the { { { { Print Start} } } } key to make your prints.
2. Optional Functions Colour Printing Using the Optional Colour Drum B B B B In addition to the standard black Place the original in the docu- drum, colour drum units (red, blue, ment feeder and press the { { { { Master green, brown, yellow, purple, navy, Making} } } } key.
Optional Functions D D D D Hold the rail on the drum and Changing the Colour Drum slide out the drum while pulling Unit the release towards you. A A A A Open the front door. E E E E Remove the drum unit from the machine while holding the upper B B B B...
Colour Printing Using the Optional Colour Drum G G G G Slide in the drum unit until it Printing in Two Colours locks in position. After printing in one colour, you can print in another colour on the same side of the print. Important ❒...
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Optional Functions C C C C F F F F Check the image position on the Remove the prints from the paper trial or proof print. delivery tray and re-load them into the paper feed tray, as shown Note in the illustration. ❒...
3. Replenishing Supplies Loading Paper into the Paper Feed Tray C C C C The Load Paper indicator (B) and the Load paper into the paper feed machine indicator “A” lights when tray. the paper feed tray runs out of paper. Replenishing Paper A A A A Press the { { { { Clear/Stop} } } } key.
Replenishing Supplies C C C C Load paper into the paper feed Changing the Paper Size tray. A A A A Lower the paper feed tray adjust- ment lever. Remove the paper from the paper feed tray. Note ❒ Correct any paper curl before setting the paper.
When the Add Ink Indicator (j) Lights j ) Lights When the Add Ink Indicator (j The Add Ink indicator (j) lights up when it is time to supply ink. R CAUTION: • If ink comes into contact with your eyes, rinse immediately in running water. For other symptoms, consult a doctor.
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Replenishing Supplies C C C C Remove the cap of the new ink cartridge. TSLT012E D D D D Insert the new cartridge into the ink holder. Note ❒ Always supply ink of the same colour. ❒ Make sure that the part indicated by the arrow mark is firmly inserted into the guide.
Master Roll Replacement Master Roll Replacement The Master End indicator (C) lights Note up when it is time to replace the mas- ❒ When the Master End indicator ter roll. lights up, it is necessary to re- A A A A place the master roll even if Open the right side cover.
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Replenishing Supplies F F F F Close the plotter cover using both hands until it clicks into place. TSLH023E G G G G Close the right side cover.
4. Troubleshooting If Your Machine does not Operate as You Want If a malfunction or a misfeed occurs within the machine, the following indicators will light. ❖ ❖ ❖ ❖ When the misfeed indicator (x x ) lights with the machine indicators Indicator Page x and “P”...
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Troubleshooting ❖ ❖ ❖ ❖ When the open cover/unit indicator (M M ) lights up Indicator Meaning Page Close the front door or the right side p.55 “When the Open Cover/Unit Indica- cover. tor (M) Lights” M and “M” Set the drum. M and “D”...
x Clearing Misfeeds x Clearing Misfeeds The machine indicator shows the area where jams occur. Important ❒ When clearing misfeeds, do not turn off the main switch. If you do, your print settings are cleared. - After clearing misfeeds Press the { { { { Clear Modes/Recovery} } } } key to reset the error indicators.
Troubleshooting x ” and “P” light up When “x An original misfeed occurs in the document feeder. A A A A Open the cover of the document feeder. B B B B Pull out the original gently. C C C C Close the cover of the document feeder.
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x Clearing Misfeeds • Bound, stapled, or clipped originals • OHP transparencies • Translucent paper • Pasted originals Note ❒ The first 5 mm, 0.2" of the leading edge cannot be printed. Make sure the lead- ing edge margin is at least 5 mm, 0.2". Original Print ❒...
Troubleshooting x ” and “B” light up When “x The master or paper is wrapped around the drum, or a paper misfeed occurs in- side the machine. A A A A Pull out the drum unit. B B B B Remove the misfed paper.
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x Clearing Misfeeds • When you use curled paper, correct the curl as shown. GRCURL0E • If you cannot correct the paper curl, stack the paper with the curl face down as shown. • When the leading edge margin of the original is less than 5 mm, 0.2" or there is a solid image on the leading edge, insert the original with the widest mar- gin first or make a leading edge margin by making a copy.
Troubleshooting x ” and “C” light up When “x A paper misfeed occurs in the paper delivery section. R CAUTION: • Be careful not to cut yourself on any sharp edges when you reach inside the machine to remove misfed sheets of paper or masters. A A A A Remove the misfed paper.
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x Clearing Misfeeds - To prevent paper misfeeds: If the paper is curled or the original's leading edge margin is too narrow, the fol- lowing action is necessary. • When you use curled paper, correct the curl as shown. GRCURL0E •...
Troubleshooting • When the leading edge margin of the original is less than 5 mm, 0.2" or there is a solid image on the leading edge, insert the original with the widest mar- gin first or make a leading edge margin by making a copy. GRLEAD0E x ”...
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x Clearing Misfeeds C C C C If you could not remove the misfed master in steps B B B B and C C C C , take out the drum and remove the misfed master from the inside. D D D D Close the right side cover.
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Troubleshooting C Return the master eject box to its original position. Note ❒ Set the drum unit and close the front door. When a master misfeed occurs on the drum A Lift the lever to unlock the drum unit and pull out the unit. Reference For how to remove the drum unit, see p.34 “Changing the Colour Drum Unit”.
When the Open Cover/Unit Indicator (M) Lights When the Open Cover/Unit Indicator (M Lights MMake sure that the following door/units are closed. The machine indicator shows the place where the door/units are not closed. ❖ ❖ ❖ ❖ Right Side Cover Close the right side cover firmly until it locks into position.
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Troubleshooting ❖ ❖ ❖ ❖ Drum Unit Set the drum unit completely until it locks in position.
When the Master Eject Indicator (k) Lights k ) Lights When the Master Eject Indicator (k The Master Eject indicator (k) lights when it is time to empty master eject box or when you need to set the master eject box. A A A A Take out the master eject box and remove the used masters.
Troubleshooting Poor Printing Dirt on the Back Side of Paper GRDIRT0E Note ❒ When you use paper smaller than the original, select the proper reduction ra- tio. Otherwise, you might get dirty background prints. ❒ When you use postcards and the like, the background might be dirty because postcards do not absorb ink well.
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Poor Printing Reference See p.34 “Changing the Colour Drum Unit”for the details. C C C C Clean the pressure roller with a clean cloth. D D D D With a clean cloth, remove any ink that has accumulated on the trailing edge of the drum unit.
Troubleshooting G G G G Turn on the main switch. Dirt on the Front Side of Paper (Black Line/Stain) GRBLAC1E Note ❒ When black lines or stains still appear on prints even if you clean the above, contact your service representative. ❒...
Poor Printing White Prints or Incomplete Prints GRWHIT0E • Make sure that the paper feed side plates touch the paper lightly. Put back the lock levers. When you get white or incomplete prints even when you have checked the above, perform the following procedure. A A A A Pull out the drum unit.
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Troubleshooting B B B B Remove the master from the drum. TSLH031E C C C C Remove paper that is stuck to the drum. TSLH02BE D D D D Insert the drum unit until it locks in position, then lower the drum unit lock lever.
5. Remarks Operation Notes General Cautions • While printing, do not turn off the main switch. • While printing, do not open the door or covers. • While printing, do not unplug the power cord. • While printing, do not move the machine. •...
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Remarks • When the machine is used in low temperature conditions, the image density might decrease. In this case, select the slower printing speed. • Press the { { { { Proof} } } } key to perform a test print as the first few prints might be light.
Operation Notes • When marks on the printing paper occur, clean the paper feed roller. See p.68 “Paper Feed Roller (paper feed tray)”. • If you make a print before the ink on the first print dries, the ink may adhere to the paper feed roller and soil the print.
Remarks Where to Put Your Machine Your machine's location should be carefully chosen because environmental con- ditions greatly affect its performance. Environmental Conditions Optimum environmental conditions R CAUTION: • Keep the machine away from humidity and dust. Otherwise a fire or an elec- tric shock might occur.
Where to Put Your Machine Power Connection R WARNING: • Connect the machine only to the power source described on the inside front cover of this manual. Connect the power cord directly into a wall outlet and do not use an extension cord. •...
Remarks Maintaining Your Machine To maintain high print quality, clean Paper Feed Roller (paper feed the following parts and units regular- tray) A A A A Document Feeder Wipe off the paper dust on the pa- per feed roller with a damp cloth, A A A A then wipe it with a dry cloth.
Combination Chart Combination Chart This combination chart shows which modes can be used together. ❍ means that these modes can be used together. × means that these modes cannot be used together. ❍ ❍ ❍ ❍ × Enlarge/Reduce ❍ ❍ ❍...
6. Specifications Main Frame ❖ ❖ ❖ ❖ Configuration: Desk top ❖ ❖ ❖ ❖ Printing Process: Full automatic one drum stencil system ❖ ❖ ❖ ❖ Original Type: Sheet ❖ ❖ ❖ ❖ Original Size: Maximum 275 mm × 395 mm, 10.8" × 15.6" ❖...
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Specifications ❖ ❖ ❖ ❖ Leading Edge Margin: 5 mm ± 3 mm, 0.2" ± 0.12" ❖ ❖ ❖ ❖ Print Paper Weight: 35 g/m to 127.9 g/m , 9.3 lb to 34 lb ❖ ❖ ❖ ❖ Print Speed: 60 –...
Specifications Consumables Name Size Remarks Master for LG drum Length: 50 m, 164ft/roll 100 masters can be made per roll Width: 240 mm, 9.5" 1 roll/pack Master for B4 drum Length: 50 m, 164ft/roll 100 masters can be made per roll Width: 280 mm, 11.0"...
INDEX {Image Density} } } } key , 8 , 20 Access to machine , 67 {Image Position} } } } key , 18 Adjusting the Print Image Density , 20 {Image Position} } } } keys , 8 Adjusting the Print Image Position , 18 After clearing misfeeds , 45 Indicators , 9 After Printing , 17...
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Paper delivery end plate , 7 Paper delivery side plates , 7 Paper delivery tray , 7 Paper Feed Roller , 68 Paper feed side plate lock levers , 6 Paper feed side plates , 6 Paper feed tray , 6 Paper feed tray adjustment lever , 6 Photo mode , 27 Poor Printing , 58...
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Germany Shanghai P.C.:200021 Phone: +86-21-5396-6888 RICOH DEUTSCHLAND GmbH Mergenthalerallee 38-40, Singapore 65760 Eschborn Phone: +49-(0)6196-9060 RICOH ASIA PACIFIC PTE.LTD. 260 Orchard Road, France #15-01/02 The Heeren, Singapore 238855 RICOH FRANCE S.A. 383, Avenue du Général de Gaulle Phone: +65-6830-5888 BP 307-92143 Clamart Cedex...