Manuale d’uso / di manutenzione del prodotto E-STUDIO281C del fabbricante Toshiba
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File No. SME05001 100 R05072188300-TTEC V er00_2005-1 1.
© 2005 TOSHIBA TEC CORPO RA TION All rights reserved.
Revision Record File No. SME 05001 100 Date Rev .No Item Descriptions Remarks November , 2005 00 --- Issue of the first version.
The Imaging Manual is i ntended for c ustomers usi ng the T oshiba e -STUDIO281c/351c/ 451c with a va riety of specific needs and inquiries for high image quality , such as: x How to obtain a clearer .
Icons The following icons used in this manual denotes th e following: : • Copy ——— An adjustm ent having an ef fect on copying i n Black mode (excludin g Image sm oothing m ode) • Printer .
1. General Adjustmen ts – Copying, Prin ting and e-Filing (Output from Box) 1.1 To Obtain a Darker Image 1.2 To Achieve the Image Qualit y Most Suitable for Paper Used 1.2.1 To Adjust the Blurred or Grained Image 1.2.2 To Adjust the Light Image at the Trailing Edge/Splattering of Toner 1.
2.16 To Clearly Copy Text (To adjust the density of text) 2.16.1 To Adjust the Copy Image Quality in Black Mode 2.16.2 To Adjust the Copy Image Quality in Full Color Mode 2.17 To Adjust the Twin Color Copy Image Quality (To adjust the image qualit y in red and black mode) 2.
e-STUDIO281c/351c/451c 1.1 T o Obt ain a Darker Image Before the adjustment Af ter the adjustment The output image looks light an d blurred. The output image looks darker and sharper . Explanation When an ori ginal containin g photo im ages or gradational images is printed, the output im age sometimes looks light and blurred.
e-STUDIO281c/351c/451c T o adjust the copy image qualit y Use steps (a) throug h (i) to pe rform the autom atic calibration. (a) Press the [USE R FUNCTIONS] bu tton on the Control Panel to en ter the "User Functions" menu. (b) Press the [ADMIN] button.
e-STUDIO281c/351c/451c (3) Enter adjust ment mode [ 05]. Change t he values for codes [234/2 36/237/238/ 239] to adjust the tra nsfer (2nd transfer) rolle r bias output. (Adjust the of fset voltage of transfer roller bi as so a s to increase the density of the image.
e-STUDIO281c/351c/451c (4) Check the life of the consumables (pa rticularly the drum, developer m aterial and fuser unit) and replace them, if necessary . • When replacin g any consum able, use steps (a) to (c) below . (a) Enter PM support m ode. Reset the counter co rresponding to the replaced consum able to "0.
e-STUDIO281c/351c/451c 1.2 T o Achieve the Image Quality Most Suitable for Paper Used Before the adjustment The image looks g rained, depen ding on the type of paper . Af ter the adjustment The image quality at the trailing edge of the paper may becom e lighter , depen ding on t he type of pape r used.
e-STUDIO281c/351c/451c Explanation The image som etimes looks slightly bl urred or grained on t h e copy o r printout, de pending on the type o f paper used. In addition, it may become ligh ter at the trailing edge of the paper . Adju st the transfer roller bias output, in order to achieve the image qu ality most suitable for the paper used .
e-STUDIO281c/351c/451c 1.2.1 T o Adjust the Blurred or Grained Image (1) Enter adjust ment mode [ 05]. Change t he values for codes [234/2 36/237/238/ 239] to adjust the tra nsfer (2nd transfer) rolle r bias output. (Adjust the offset voltage of transfer roller bias so as to optimize the halftones.
e-STUDIO281c/351c/451c (2) Check the life of the consumables (pa rticularly the drum, developer m aterial and fuser unit) and replace them, if necessary . • When replacin g any consum able, use steps (a) to (c) below . (a) Enter PM support m ode. Reset the counter corres ponding to the replaced consum able part to "0.
e-STUDIO281c/351c/451c 1.2.2 T o Adjust the Light Image at the T railing Edge/Splattering of T oner (1) Enter adjust ment mode [ 05]. Change t he value for code [29 3] or [1822] t o adjust the t ransfer roll er bias output at t he trailing edge of the paper .
e-STUDIO281c/351c/451c (b) Enter ad justment m ode [05]. Change the value for code [1 822] to cor rect the transfer roller bias output in a d justment range B. (Specify a n average factor , in order to preven t the transfer roller bias output fr om being ra pidly change d between the center a nd traili ng edge of t he paper .
e-STUDIO281c/351c/451c (2) Enter adjust ment mode [ 05]. Change the value fo r code [43 4] to adjust t he bottom mar gin. * This adjustment will have an effect only on the image printed on the back of the paper (p rinted side delivered facing downward s) in duplex copying.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment T oo small a set value may possibly cause the image to become lig ht, if a darker image is laid out at the trailing edge of the ori ginal. T herefore, carefully perf o rm the adjustment, while checking the copy im age.
e-STUDIO281c/351c/451c 1.3 T o Minimize V ariations in the Image Quality af ter Power-on (T o optimall y program image quality control) Before the adjustment Af ter the adjustment The image quality varies, d epending on the operating environment or condition at power-on.
e-STUDIO281c/351c/451c Procedures * The service technician must perform the adjust ment in accordance with the procedures below . (1) Enter setting mode [08]. Change the value for code [559 ] to "2" to place image quality cont rol in mode 2.
e-STUDIO281c/351c/451c 1.4 T o Minimize V ariations in the Imag e Quality under th e Operating Conditions (T o optimall y program image quality control) Before the adjustment Af ter the adjustment The image contrast varies, de pending on the date and time when copyin g or printing is performe d or the type o f job.
e-STUDIO281c/351c/451c Explanation The image con trast may vary , depending on the date and time whe n copying or printi ng is perform ed or the type of copy/print job. T o constantly maintain i mage quality , shor ten the waiting period until image qu ality control is performed.
e-STUDIO281c/351c/451c A very small number of copies are output (approx. one copy per hour): Use steps (a) to (b) and perform the adjustment of image quality control. (a) Change the value for 08-571 within the range from "1" to "3" to reduce the waiting period until image quality control is performed.
e-STUDIO281c/351c/451c (2) Check the life of the cons umables (particularly the drum, devel oper mat erial an d transfer belt unit) and replace them, if necessary . • When replacin g any consum able, use steps (a) to (c) below . (a) Enter PM support m ode.
e-STUDIO281c/351c/451c 1.5 T o Correct Out-of-Register Colors Before the adjustment Af ter the adjustment The text and backgrou nd are misaligned or out of register . T ext is aligned with the background and a cl ear copy/print image i s obtained. Explanation Colors of text or a thin line are so metimes printed out of register .
e-STUDIO281c/351c/451c Procedure * The service technician must perform the adju stment in accordance with the procedure below . (1) Make sure that no out -of-register col o rs are recognized on an ori ginal. (2) Check a direction in which colors are misaligned.
e-STUDIO281c/351c/451c 1.5 .1 Color Registration Contr ol Procedur e 1: T o Correct Ou t-of-register colors on A3/LD-sized Paper w ith T est Print Pattern 63 (05-63) (1) Enter adjustment mode [05] and print out th e te st print pattern to correct out-of-register colors.
e-STUDIO281c/351c/451c How to use test print p attern for correcti ng out-of-register colors (ladder p attern) Align 3 toner colors (Y , C and K) with m agenta (M) at the leading edg e and trailing edge of the test print pattern.
e-STUDIO281c/351c/451c 1.5 .2 Color Registration Contr ol Procedur e 1: T o Correct Ou t-of-register colors on A4/L T -sized Paper w ith T est Print Pattern 68 (05-68) (1) Enter adjustment mode [05] and print out th e te st print pattern to correct out-of-register colors.
e-STUDIO281c/351c/451c 1.5.3 Col or Registration Control Procedur e 2: T o Correct Ou t-of-register colors with T est Print Pattern 64 (05-64) (1) Enter adjustment mode [05] and print out th e te st print pattern to correct out-of-register colors. • Use steps (a) to (b) to print out the test print pattern.
e-STUDIO281c/351c/451c How to use test print p attern for correct ing out-of-register colors (block p attern) Align 3 toner colors (Y , C and K) with m agenta (M) to make spacing equal at the leading edge and trailing edge of the test print pattern.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment Nothing in particular . Remarks • Out-of-register colors may possibly occ ur after replaci ng the consum ables such as.
e-STUDIO281c/351c/451c 2.1 T o Sharply Copy Light T ext or Thin Lines (T o darken handw ritten text or thin lines in the graphic image) Before the adjustment Af ter the adjustment When the light print im age is copied, text looks blurred. The graphic image a n d text look darker and sharper .
e-STUDIO281c/351c/451c 2.1.1 T o Adjust the Copy Image Quality in Black Mode * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (4) Enter adjust ment mode [ 05]. Increase t he value for co de [648] t o increase the copy density of te xt. (T o improve fa int, smudge d text or t h in lines) • Initially , set a valu e larger than 180 for code 05-648 . Copy and check the copy image quality .
e-STUDIO281c/351c/451c (7) Enter adjust ment mode [ 05]. Change t he values for codes [570 t o 572] or [693 to 695] to set the bac kground peak of range cor rection to "fixed" in manual co py density mode.
e-STUDIO281c/351c/451c 2.1.2 T o Adjust t he Copy Image Quality in Full Color Mode * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (4) Press the [BASIC] button on the Contro l Panel. Select "TEXT" from among the original mode options. * T o have "TEXT" sel ected from among the original mode options by default , refer to pro cedure (1) in 2.
e-STUDIO281c/351c/451c 2.1.3 T o Adjust t he Copy Image Quality in Auto Color Mode * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment The adjustm ent may possibly cause an i ncrease in the amount of t oner used, moiré, blu rred text (sm all, dark text blurred), diminished photo im ages or gradational images (less accurate re production of halft ones).
e-STUDIO281c/351c/451c 2.2 T o Closely Match with the Color Balance of the Original Before the adjustment Af ter the adjustment The copy image looks yellowish, com pared with the original. The color balance of the copy im age is closely matched with that of the original.
e-STUDIO281c/351c/451c Procedures * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below .
e-STUDIO281c/351c/451c (3) Perform the co lor balance adjust ment or RG B adjustment to adjust the hu e in general. • Use steps (a) throug h (d) to pe rform the adjustm ent.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment The adjustm ent may possibly cause of fset failure, parti cularly whe n the highly colored or iginal is copie d in Photo mode. There fore, carefully perform the adjustment, while c h ecking the copy image.
e-STUDIO281c/351c/451c 2.3 T o Improve the Reproducibility of Gray Before the adjustment Af ter the adjustment Another c olor (M) is bl ended in the gray area. No undesired c o lor is bl ended. A clear copy image is obtained. Explanation When an original containing gray is c opied, another color may be blended in the gray area.
e-STUDIO281c/351c/451c (3) Perform the color balance adjustment or RGB adjustment to adju st the hue. * For furt her inform ation regardin g the adjust ment procedu res, refer to p rocedure (2) i n 2.2 T o Closely Match with the Color Balance of th e Original.
e-STUDIO281c/351c/451c 2.4 T o Copy in Vivid Colors Before the adjustment Af ter the adjustment When a copy is made without any adjustm ents, vividness is missing on the copy im age. The copy image is obtained in vivid colors. Explanation When a copy i s made without any a djustments, vi vidness may be missing on the copy image.
e-STUDIO281c/351c/451c (3) Enter adjust ment mode [ 05]. Change t he values for codes [177 9 to 1798] t o adjust the c olor density . Color to be adjusted Original mode [05] code Subcode V alue recomm.
e-STUDIO281c/351c/451c 2.5 T o M a ke th e P a le A r e a o f th e Original Look Darker and Sharper (T o improve the highlight reproducibility) Before the adjustment Af ter the adjustment The splashing area (highligh t) is blurred. A clear copy image of the splashing a rea is obtained.
e-STUDIO281c/351c/451c (2) Enter adjust ment mode [ 05]. Change t h e values for c odes [1688 to 1692] and [ 1698 to 170 2] to adjust the background density . * The highlighted area will become highly visibl e, if the background density is increased .
e-STUDIO281c/351c/451c (4) Enter adjust ment mode [ 05]. Change t he values for codes [177 9 to 1798] t o adjust the c olor density . Color to be adjusted Original mode [05] code Subcode V alue recomm.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment The adjustment m ay possibly cause the background color to become excessi vely da rk. Therefore, carefully perform the adjustment, while checking the copy image. Remarks Enter the value within the recommende d value range men tioned in the procedures.
e-STUDIO281c/351c/451c 2.6 T o Eliminate the Background Color Before the adjustment Af ter the adjustment The background co lor of the original is also copied. Therefore, no clear c ontrast is m ade between the ba ckground and text. The background color is eliminated, allowing clear contrast between the background and t ext.
e-STUDIO281c/351c/451c 2.6.1 T o Adjust the Copy Image Quality in Black Mode * Y ou can start with any of t he procedures . But it is rec ommended to perform the proce dures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (4) Adjust the bac k ground peak of range correction to lighten t he copy im age. • Use steps (a) to (b ) to adjust the background peak of range correctio n. (a) Enter adj ustment m ode [05]. Chan ge the values for codes [ 570 to 572] or [693 to 695] to set the background peak of ran ge correction to "fix ed.
e-STUDIO281c/351c/451c (b) Enter ad justment m ode [05]. Increase the va lues for codes [ 532 to 534] t o adjust the background pea k of range co rrection and lighten the copy image. (Increase the num ber of pixels to be identifi ed as "white" by range correction.
e-STUDIO281c/351c/451c 2.6.2 T o Adjust t he Copy Image Quality in Full Color Mode * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (3) Press the [BASIC] button on the Contro l Panel. Select "TEXT" from among the original mode options. * T o have "TEXT" sel ected from among the original mode options by default , refer to pro cedure (1) in 2.
e-STUDIO281c/351c/451c 2.7 T o A void Copying the Image Seen through the Back of the Page Printed on Thin Paper Original printed on thin p aper (front) Original printed on thin p aper (back) Before th.
e-STUDIO281c/351c/451c 2.7.1 T o Adjust the Copy Image Quality in Black Mode * Y ou can start with any of t he procedures . But it is rec ommended to perform the proce dures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (4) Adjust the bac k ground peak of range correction to lighten t he copy im age. • Use steps (a) to (b ) to adjust the background peak of range correctio n. (a) Enter adjustment m ode [05]. Change the values fo r codes [57 0 to 572] or [693 to 695] to set the background peak of ran ge correction to "fix ed.
e-STUDIO281c/351c/451c (b) Enter ad justment m ode [05]. Increase the va lues for codes [ 532 to 534] t o adjust the background pea k of range co rrection and lighten the copy image. (Increase the num ber of pixels to be identifi ed as "white" by range correction.
e-STUDIO281c/351c/451c 2.7.2 T o Adjust t he Copy Image Quality in Full Color Mode * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (3) Press the [BASIC] button on the Contro l Panel. Select "TEXT" from among the original mode options. * T o have "TEXT" sel ected from among the original mode options by default , refer to pro cedure (1) in 2.
e-STUDIO281c/351c/451c 2.8 T o Eliminate Moiré Before the adjustment Af ter the adjustment Moiré occurs on the photo im age. Moiré is eliminated and a cle ar copy image is obtained. Explanation When an ori ginal containin g photo im ages or gradationa l images (halftones) is c opi ed, m oiré sometimes occurs on the copy .
e-STUDIO281c/351c/451c (1) Press the [BASIC] button on the Contro l Panel and select the original mode option, as fo llows: • T o copy in Full co lor mode: Select the Printed image mode option. • T o copy in Bl ack mode: Select the Phot o mode opti on.
e-STUDIO281c/351c/451c (3) Enter adju stment m ode [05]. Chan ge the values fo r codes [60 4 to 606], [1737 to 17 41] and [1 757] to ad just the sharpness intensity .
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment Nothing in particular . Remarks • Enter the value within the recommend ed value range men tioned in the procedures. Otherwise, it may cause a loss in copier performance, including degr adation in the image quality .
e-STUDIO281c/351c/451c 2.9 T o Copy Sharply (T o enhan ce sharpness) Before the adjustment Af ter the adjustment The image looks light and blurred on the copy .
e-STUDIO281c/351c/451c (3) Enter adju stment m ode [05]. Chan ge the values fo r codes [60 4 to 606], [1737 to 17 41] and [1 757] to ad just the sharpness intensity .
e-STUDIO281c/351c/451c 2.10 T o Make Photo Edges Look Sof ter Before the adjustment Af ter the adjustment The edges (contours) of the image are highly visible. The edges look soft. Explanation When a photo image is copied, the c ontours or edges of the im age sometimes become highl y visible on the copy .
e-STUDIO281c/351c/451c (1) Press the [BASIC] button on the Contro l Panel and select the original mode option, as fo llows: • T o copy in Full co lor mode: Select the Printed image mode option. • T o copy in Bl ack mode: Select the Phot o mode opti on.
e-STUDIO281c/351c/451c (3) Enter adju stment m ode [05]. Chan ge the values fo r codes [60 4 to 606], [1737 to 17 41] and [1 757] to ad just the sharpness intensity .
e-STUDIO281c/351c/451c (5) Enter adjustment mode [05]. Change the value for code [1725] to adjust the lev el of reproducibility in T ext/Photo mode. Color mode [05] code V alue recommended Acceptable value range Default Full color 05-1 725 Set a value smaller than 3.
e-STUDIO281c/351c/451c 2.1 1 T o Make Solid Filled Bold T ext (Logo) Highly Colored Before the adjustment Af ter the adjustment The solid filled graph is not highly co lored enough. The solid filled graph becomes highly colo red and sharper . Explanation Solid filled bold text , such as a logo, is not sometimes highly colored on the copy .
e-STUDIO281c/351c/451c 2.1 1.1 T o Adjust the Copy Image Quality of a Black Logo * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (4) Enter adjust ment mode [ 05]. Change t he value for code [17 95] to adjust t he black densit y . Color to be adjusted Original mode [05] code Subcode V alue recommended A cceptable value range Default K (Black) T ext 05-1795 0/1/ 2 Set a value lar ger than 128.
e-STUDIO281c/351c/451c 2.1 1.2 T o Adjust the Copy Image Quality of a Colored Logo * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below . Y o u can use one procedure in conjunction with anoth er .
e-STUDIO281c/351c/451c (4) Enter adjustment mode [05]. Change the valu es for codes [ 1780/1785/1790/1795] or [1783/1788/1793/1798] to adjust the co lor density .
e-STUDIO281c/351c/451c 2.12 T o Sharply Contrast the Hu es of Highlighters on the Copy Before the adjustment Af ter the adjustment The hues of highlighters are not accurately reproduced. T h e areas marked with 2 different colored highl ighters are rep roduced in the same hue.
e-STUDIO281c/351c/451c (2) Enter adjust ment mode [ 05]. Change t he values for codes [176 9 to 1772] t o assign the hi ghlighter -specific mode function for a button in the "ONE TO UCH ADJUSTMENT" option.
e-STUDIO281c/351c/451c (3) Enter adjust ment mode [ 05]. Change t he values for codes [177 9 to 1798] t o adjust the c olor density . Color to be adjusted Original mode [05] code Subcode V alue recomm.
e-STUDIO281c/351c/451c 2.13 T o Obta in a Good Color Balance on Thick Paper Before the adjustment Af ter the adjustment The copy im ag e looks light on thick pape r . The copy image looks darke r and sharper even on thick paper . Explanation When a copy is made on thick paper in thick paper mode, the copy im ag e sometimes looks light.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment Nothing in particular . Remarks • Enter the value within the recommend ed value range men tioned in the procedures.
e-STUDIO281c/351c/451c 2.14 T o Obt ain Smooth Gray-scale Photo Images Before the adjustment Af ter the adjustment Halftones are not accurately reproduced .
e-STUDIO281c/351c/451c Procedure * The adjustm ent is performed by the service technician only . (1) Press the [BAS IC] button on t he Control Panel.
e-STUDIO281c/351c/451c 2.15 T o Change the Threshold in Auto Color Mode (T o chang e the threshol d betwee n Full color mode a nd Black mode to meet the user ’ s n eeds) Original Before the adjustment Af ter the adjustment It is copied in Full color mode.
e-STUDIO281c/351c/451c Procedures * Y ou can start wit h any of the procedures. B ut it is recom mended to per form the proced ures in order , as listed below .
e-STUDIO281c/351c/451c 2.16 T o Clearly Copy T ext (T o adjust the density of text) Before the adjustment Af ter the adjustment T ext is faint or smudged on t he copy . T ext is darkened and sharply copie d. Explanation Adjust the copy density o f text, in order to sh arply copy light-colo red, thin text, or ligh ten highly colored tex t.
e-STUDIO281c/351c/451c 2.16.1 T o Adjust the Cop y Image Quality in Black Mode (1) Enter adjust ment mode [ 05]. Increase t he value for co de [648] t o increase the copy density of te xt. (T o improve fa int, smudge d text or t h in lines) • Initially , set a valu e larger than 180 for code 05-648 .
e-STUDIO281c/351c/451c 2.17 T o Adjust the T win Color Copy Image Quality (T o adjust the image qualit y in red and black mode) Before the adjustment Af ter the adjustment When a copy is made i n red and blac k mode for twi n color copy , red is bl ended i n a part of the black a rea.
e-STUDIO281c/351c/451c 2.17.1 T o Adjust the Reproducibilit y of Black in Red and Black Mode * The adjustm ent is performed by the service technician only . (1) Enter adjustment mode [05 ]. Set "1" for code [1761] to chang e the setting, which is intended to improve the reproducibility of black areas.
e-STUDIO281c/351c/451c 2.18 T o Adjust the Image Quality Scanned from the RADF Before the adjustment Af ter the adjustment The reproducibility of back ground may vary , depending on how to sca n an original . The gap in the reproducibility of background is reduced.
e-STUDIO281c/351c/451c Procedure * The adjustm ent is performed by the service technician only . (1) Ent er adjustment m ode [05]. Change the va lue for code [361] or [362] to ad just the reproducib ility of background, while scanning an original fed from the RADF .
e-STUDIO281c/351c/451c 3.1 T o Maint ain a Steady Color Balance Before the adjustment Af ter the adjustment The color balance var ies, according to a ch ange in the environment or a lapse of time.
e-STUDIO281c/351c/451c PCL5c PS3 Mac PCL6 PCL5c PS3 Mac (1) Enter adjust ment mode [ 05]. Select code [395]. Press the [ST AR T] button. • Image quality control will be forcibly performe d to correct variations in image con trast. After exercising image quality control, print and ch eck the print image quality .
e-STUDIO281c/351c/451c 3.2 T o Obt ain the Desired Color Balance Before the adjustment Af ter the adjustment – The natural color balance is obtained.
e-STUDIO281c/351c/451c PCL5c PS3 (1) Change the "Image Qu ality T ype" setting. * This adjustment will be effective, only if print out a file created on a general app lication, such as Microsoft Office, in Post Script (PS3 or Macintosh).
e-STUDIO281c/351c/451c Mac For Macintosh * This adj ustment will be effecti v e, only if "Color" i s selected from among the " Color Resolution T ype" options on the pr inter driver Open the pri nt dialog bo x. Change the "C olor Resolution T ype" setting.
e-STUDIO281c/351c/451c * The Image Quality T ype optio ns feature the following: • G en era l: "General" is the best-rounded option to of fer fine printouts of any type of original, including text, photographs and graphics.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 Mac PCL5c PS3 Mac (2) Enter adjust ment mode [ 05]. Select code [395]. Press the [ST AR T] button. • Image quality control will be forcibly performe d to correct variations in image con trast. After exercising image quality control, print and ch eck the print image quality .
e-STUDIO281c/351c/451c PCL5c PS3 Mac * This adjustm ent will have an effect only on full-color printing. (4) Enter adjust ment mode [ 05]. Change t he values for codes [101 0 to 1041] t o adjust the c olor density . • Adjust the val ues for the [05] codes c o rresponding to the pri nt options to be applied (PDL, Resol ution and Halftone).
e-STUDIO281c/351c/451c * "Halftone" refers to how halftones are printed . T wo options are available: "Smooth" which is intended to improve the reprod ucibility of grad ation and "Detail" wh ich is intended to print halfton es in details (with the high de nsity).
e-STUDIO281c/351c/451c 3.3 T o Closely Match with the Color Balance on the Monitor As view ed on t he mo nit or Before the adjustment Af ter the adjustment The color balance as viewed on the monitor looks different from the printout.
e-STUDIO281c/351c/451c PCL5c PS3 Procedure * The adjustm ent is performed by the service technician, a n d by the user . (1) Select "Photograph" from among the "Image Quality T ype" options.
e-STUDIO281c/351c/451c Mac For Macintosh * This adjustment will have an effect only on full-color printing. Open the print dialog box. Se lect "P hot o" fr om am on g t he "C olor Resolut ion T ype" opt io ns . * The menu to be selected varies, according to the oper ating system.
e-STUDIO281c/351c/451c 3.4 T o Maint ain a Uniform Gray Hue (T o Maintain consistency in Gray among T ext, Photos and Graphics) Before the adjustment Af ter the adjustment How gray is repro duced varies, depe nding on the type of original. As a result, there are variations in gray .
e-STUDIO281c/351c/451c PCL5c PS3 Procedure * The adjustm ent is performed by the service technician, a n d by the user . (1) Change the "Pur e Gray" setting on the printer driver . ("Pure Gray" allows gray area s to always be reprodu ced using all toner colors (C, M, Y and K) without changing the hue of col or areas.
e-STUDIO281c/351c/451c Mac For Macintosh * This adjustment will have an effect only on full-color printing. Open the pri nt dialog box. Unmark "Pure B lack and Pure Gray" in the "Pure Black an d Gray" drop-down list. (Select "Pure Black Only" from the drop-down list.
e-STUDIO281c/351c/451c PCL5c PS3 (2) Select "Line Art" from among the "Image Quality T ype" options o n the printer driver . ("LineArt" all ows gray areas t o always be re produced usin g only the K to ner .
e-STUDIO281c/351c/451c Mac For Macintosh * This adjustment will have an effect only on full-color printing. Open the print dialog box. Se lect "L in eA rt" f rom a mo ng th e " Color Resoluti on T ype" opt io ns . * The menu to be selected varies, according to the oper ating system.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment • The adjustment perform ed in accordan ce with pr oc ed ure (1) w ill allow gray areas to always be reproduc ed using all toner colors (C, M , Y and K). As a result, un desired colors may look bl ended, depen ding on the im age to print out.
e-STUDIO281c/351c/451c 3.5 To Easily Adjust the Overall Brightness Before the adjustment The image is printed with a natural brightness. (Default printing) Af ter the adjustment Af ter the adjustment The darker pri nt image is obtained. The brighter pr int image is o btained.
e-STUDIO281c/351c/451c PCL5c Procedure * The adjustm ent is performed by the service technician, a n d by the user . (1) Open the property page of the printer driver . Adjust "Brightness" in the "Image Quality" tab. • Select the desired value for bright ness within a range between − 10 0% (Darkest) and 100 % (Lightest).
e-STUDIO281c/351c/451c 3.6 To Easily Adjust the Overall Saturation Before the adjustment The image is printed with a natural saturation. (Default printing) Af ter the adjustment Af ter the adjustment The saturation is decreased. The saturation is increased.
e-STUDIO281c/351c/451c PCL5c Procedure * The adjustm ent is performed by the service technician, a n d by the user . * This adjustment will have an effect only on full-color printing. (1) Open the property page of the printer driver . Adjust "Saturation" in th e "Image Quality" tab.
e-STUDIO281c/351c/451c 3.7 To Clearly Print Light-col ored Thin Lines or Text Before the adjustment Af ter the adjustment Light-colored thin lines and text are dotted on the printout.
e-STUDIO281c/351c/451c PCL5c PS3 (1) Change the "Image Qu ality T ype" setting. For Windows Open the property page of the printer driver . Change the "Image Quality T ype" and "Halftone" settings in the Image Quality tab.
e-STUDIO281c/351c/451c Mac For Macintosh * This adjustment will have an effect only on full-color printing. Open the pri n t dialog b ox. Select "Li neArt" from am ong the "Color Resolution T ype" options. * The menu to be selected varies, according to the oper ating system.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 Mac (2) Change the value for an appro priate code in a djustment m ode [05] to adj ust the color balance or gamm a curve balance. * The [05] code to use varies, depending on whether to adjust the image quality in fu ll-color printing or black-and-white printing.
e-STUDIO281c/351c/451c Color to be adjusted PDL Resolution Half tone [05] code Subcode Va l u e recommended Acceptable value range Default 600 x 600 Detail 05-103 0 0/ 1/2 PCL5c 1200 x 600 Det ail 05-.
e-STUDIO281c/351c/451c T o adjust the image quality in black-and-white printing ("Mono" is selected from among the "Color" op tions on the PCL5c or PS3 prin ter driver . T o print using PCL6, "Mono" is selected from among the "Color Resolution T ype" options on the Macintosh printer driver .
e-STUDIO281c/351c/451c 3.8 To Clearly Print Thi n Lines/Double Lines Before the adjustment Af ter the adjustment – Thin lines or double lines are dotted on the print out.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 For Windows Op en the property page of the printe r driver . Mark the "Distinguish Thin Li nes" checkbox in the "Image Quality" t ab.
e-STUDIO281c/351c/451c Mac For Macintosh Open the print dialog box. Mark the "Distinguish Thin Line" checkbox. * The menu to be selected varies, according to the oper ating system.
e-STUDIO281c/351c/451c 3.9 T o Decrease the Image Density and Save T oner (T o Print in T oner Save Mode) Before the adjustment Af ter the adjustment Default printing. Printing is performed, while the toner is being save d. Explanation The e-STUDIO2 81c/351c/451c offers tone r save mode.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 For Windows Open the property page of the printer driver . Mark the "T oner Save" checkbox in the "Ef fect" tab.
e-STUDIO281c/351c/451c Mac For Macintosh * This adjustment will have an effect only on full-color printing. Op e n t h e p r i n t d i a l og b o x . Mark the "T o n er S a v e" checkbox. * The menu to be selected varies, according to the oper ating system.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 Mac 3.10 T o Adjust the Image Density in T oner Save Mode Before the adjustment Af ter the adjustment – The image density is too dark, eve n when printing i s perform ed in toner save mode. The image den sity in tone r save mode is adjustable, as desired.
e-STUDIO281c/351c/451c T o adjust the image quality in full-color printing ("Automati c" is selected from am ong the "Color" options on the PCL5c or PS3 pri n ter driver . "Color" is selected from am ong the "Color Resolut ion T ype" options on the M acintosh pri n ter drive r .
e-STUDIO281c/351c/451c 3.1 1 T o Print Illegible Gray or Colored T ext in Black Before the adjustment Af ter the adjustment Gray text is illegible on the printout.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 (1) Open the property page of the printer driver . Mark the "Use Black for All T ext" checkbox in the "Image Quality" tab. * This adjustment will be effective, only if print out a file created on a general app lication, such as Microsoft Office, in Post Script (PS3).
e-STUDIO281c/351c/451c 3.12 T o Ignore Blank Pages for Printing Before the adjustment Af ter the adjustment A blank pa ge is also deli vered. A blank pa ge is ignored for printin g. Explanation Some applicat ions may be designed to automatical ly insert blank pages for lay ing out the pa ges of a document.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 For Windows Open the pro perty page of the printer driver . Mark the "Do not Print Blank Pages" checkb ox in the "Ef fect" tab.
e-STUDIO281c/351c/451c Mac For Macintosh Open the pri n t dialog b ox. Mark t he "Do not Pri nt Blank Pa ges" checkbox. * The menu to be selected varies, according to the oper ating system. Refer to the table below and select the menu. OS Menu OS 9.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment The adjustm ent may possibl y cause the fu nctions in the "La yout" tab (B ooklet printin g, N-up pri nting, Use Fro nt Cover , Use Back C over and Inte rleave Page s) not to wo rk, as programmed.
e-STUDIO281c/351c/451c 3.13 T o Sharply Print Black T ext Before the adjustment Af ter the adjustment T ext lo oks black on the monito r . But the hue will vary , if it is printed out in fu ll color . The hue of text is nearly matched with the black hue on the monitor .
e-STUDIO281c/351c/451c PCL5c PS3 (1) If printing is performed with PCL5c, select the PS3 printer driver . <Hint> If printing is performed with PCL5c, or if you pr int out a file or high-d efinit.
e-STUDIO281c/351c/451c Mac For Macintosh * This adjustment will have an effect only on full-color printing. Open the print dialog box. Se lect "L in eA rt" f rom a mo ng th e " Color Resoluti on T ype" opt io ns . * The menu to be selected varies, according to the oper ating system.
e-STUDIO281c/351c/451c PCL6 PCL5c PS3 (3) Open the property page of the printer driver . Mark the "Use Black for All T ext" checkbox in the "Image Quality" tab. * This adjustment will have an effect only on printing on the PCL5c, PCL6 or PS3 emulation printer driver .
e-STUDIO281c/351c/451c PCL5c PS3 Mac PCL6 PCL5c PS3 Mac (4) Enter adjustment m ode [05]. Select code [395] . Press the [ST AR T] button. • Image quality control will be forcibly performe d to correct variations in image con trast. After exercising image quality control, print and ch eck the print image quality .
e-STUDIO281c/351c/451c Color to be adjusted PDL Resolution Half tone [05] code Subcode Va l u e recommended Accept able value range Default Smooth 05-1026 0/ 1/2 600 x 600 Detai l 05-103 0 0/1/2 Smoot.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment The adjustm ent may possibly change t he hue of the text and im age, such as a photo image, on t h e printout. Therefore, carefully perform the adju stment, while checking the printout.
e-STUDIO281c/351c/451c (1) O pen a PD F f ile o n Acrobat 7.0 Professional . (2) Select "Output Preview" in the "Advance d" m enu .
e-STUDIO281c/351c/451c 4.1 T o Clearly Store the B/W Image in Auto Color Mode Before the adjustment Af ter the adjustment The light im age becomes blurred and te xt becomes illegible.
e-STUDIO281c/351c/451c Scan to Box * This adjustment will have an effect onl y on the image stored in Auto color mode. (1) Adjust the th reshold value, in order to store the black-and-white o riginal with the appropriate density . • Use steps (a) to (d) to adjust the threshold value.
e-STUDIO281c/351c/451c 4.2 T o Store the Original, while Reducing the File Size Before the adjustment Af ter the adjustment When "LOW" is selected in the "J PEG COMPRESS" options, the file size will become larger than re quired.
e-STUDIO281c/351c/451c Scan to Box * This adjustm ent will have an ef fect only on the image stored in Full col or mode (includi ng Auto color mode) or Gray scale mod e. (1) Select [HIGH] from among the "JPEG C OMPRESS" options. * In the "JPEG COMPRESS" option, [MID] is selected by default.
e-STUDIO281c/351c/451c 4.3 T o Store the Color Photo Image, while Minimizing Moiré Before the adjustment Af ter the adjustment When the magazine article containing full- color photo images is st ored in Ph oto mode, moiré is likely to occur . Storing it in Printed image mode will reduce moiré.
e-STUDIO281c/351c/451c Co py to Box * This adjustment will have an ef fect onl y on the image stored in Full color mode. (1) Press the [BASIC] button on the Contro l Panel.
e-STUDIO281c/351c/451c 4 . 4 T o Store the B/W Original with Ph otos and T ext with the High Density (T o change the density in Copy to Box) Before the adjustment Af ter the adjustment The black-and-white image is stored in Photo mode. Whe n it is opened on an application, text looks very light.
e-STUDIO281c/351c/451c Co py to Box Cop y to Box * This adjustment will have an ef fect only on the image stored in Black mode. (1) Press the [BAS IC] button on the Contr ol Panel. Select [T EXT] or [TEXT/PHOT O] from among the original m ode options .
e-STUDIO281c/351c/451c 4.5 T o Match with the Color Balance on the Original (T o adjust the color balance in Print to Box) Before the adjustment Af ter the adjustment The image stored in the e-Fi ling box looks different in the color b alance from the orig inal.
e-STUDIO281c/351c/451c Print to Box PCL5c PS3 Explanation If a full-color image is printed on a client PC and stored in the e-Filing box (Print to Box), it will be optimized for printing on p aper .
e-STUDIO281c/351c/451c 4.6 T o Scan and Print, while Minimizing Moiré Before the adjustment Af ter the adjustment When the image stored in the e-Filing box is printed out, moiré is likely to occur . The image stored in the e-Filin g box can be printed out, while moiré is being minimized.
e-STUDIO281c/351c/451c Scan to Box Scan to Box Scan to Box (1) When scanning the original, press the [EDIT] bu tton on the Contro l Panel. Select [PRINTED IMAGE] from am ong the original mode o ptions. * This adjustment will be effective, only if "TEXT" or "PHOTO" is i nitially selected from among the original mode options.
e-STUDIO281c/351c/451c 4.7 T o Finely Print the Image Stored in the e-Filing box (T o Print Images Stored through Copy to Box or Print to Box) Before the adjustment Af ter the adjustment If the image stored in the e-Filing box is downloaded to a PC and then print ed out, the image data conversion may dimin ish the image quality .
e-STUDIO281c/351c/451c Co py to Box Print to Box Scan to Box Fax to Box Explanation Initially , the orig inal is copied or prin ted and stored in the e-Filing box (Copy to Box or Print to Box) as CMYK data or optimized for printing on paper .
e-STUDIO281c/351c/451c 4.8 T o St ore an Image Suit able for Displaying on the Monitor or Image Editing Before the adjustment Af ter the adjustment When the original is store d by Copy to Box, it will be converted in to RGB data, while being downloaded to a PC.
e-STUDIO281c/351c/451c Scan to Box Explanation Initially , the full-co lor original is copied and stored in the e-Filing box (Copy to Box) as CMYK data or optimized for printing on paper .
e-STUDIO281c/351c/451c 4.9 T o Finely Print Color Images Stor ed through the Scanning Function (T o Print Images Stored through Scan to Box) Before the adjustment Af ter the adjustment Unless the printing image mode is selected, printing m ay be performed wi th image processing not suitable fo r the stored dat a.
e-STUDIO281c/351c/451c Scan to Box Scan to Box Scan to Box Explanation When an image is stored in the e-Filing box in the full co lor or auto co lor mode of the scanning function (Scan to Box) and.
e-STUDIO281c/351c/451c 5.1 T o Clearly Scan T ext (T o reduce noi se around text) Before the adjustment Af ter the adjustment If the origi nal is scanned i n Full color m ode or Gray scale mode, noise m ay occur in text or edges of a solid filled area.
e-STUDIO281c/351c/451c (2) When scanning th e original, press the [EDIT] button on the Cont rol Panel. In t h e "RESOLUTIO N" option, select a higher resolution. * In the "RESOL UTION" option, "200 ( dpi)" is select ed by default.
e-STUDIO281c/351c/451c 5.2 T o Scan the Original, while Eliminating the Background Color (T o eliminate the background densit y) Before the adjustment Af ter the adjustment The background co lor of the original is also scanned. The refore, no clear contrast is m ade between the background a nd image.
e-STUDIO281c/351c/451c (2) Enter adjustment mode [05]. Change the values for codes [1070 to 1072] or [848] to decrease the background density . • The code to us e varies, according to color mode (Full c olor mode or Gray scale m ode).
e-STUDIO281c/351c/451c 5.3 T o Clearly Scan and Print the Original in Black and White (T o improve gradation and reduce graininess) Before the adjustment Af ter the adjustment If the original is scanned in Black mode, the halftones ma y become blu rred in blac k.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment The adjustment m ay possibly increase the size of the f ile to be stored. Th eref ore, caref ully perform the adjustment, while checking the scanned-in image qu ality . The correlation between color mode and file size is as described belo w .
e-STUDIO281c/351c/451c 5.4 T o Scan the Original, while Reducing the File Size Before the adjustment Af ter the adjustment If the original is constantly scanned at the default compression rate, the file size will become larger than re quired.
e-STUDIO281c/351c/451c (1) When scanning th e original, press the [EDIT] button on the Control Panel. Select a lower resolution option in the "RESOLUTION" option. * In the "RE SOLUTION" opti on, "200 (d pi)" is selected by default.
e-STUDIO281c/351c/451c Cautions af ter the completion of the adjustment • The table bel ow shows y ou the correlati on between the ad justment and fi le size. (The ratio of the file size m ay vary , depe nding on the type of orig inal. Therefore, use th e table below just for your r eference.
e-STUDIO281c/351c/451c Remarks • Use the follo wing steps to c hange the de fault resoluti on, original m ode, JPEG com p ression rate and/o r background adjustment op tions: (a) Press the [USE R FUNCTIONS] bu tton on the Control Panel to en ter the "User Functions" menu.
e-STUDIO281c/351c/451c 5.5 T o Sharply Scan the Original (T o increase the sharpness intensity) Before the adjustment Af ter the adjustment The image looks too soft and blurred. The edg es are enhanced. The image looks sharp. Explanation Adjust the sharpn ess intensity , in order to sharply scan th e soft and blurred original.
e-STUDIO281c/351c/451c Procedure * The adjustm ent is performed by the service technician only . (1) Enter adjust ment mode [ 05]. Change the values fo r codes [108 6 to 1088] and [840 to 843] to adjust the sharpness intensity .
e-STUDIO281c/351c/451c 5.6 T o Scan the Original, while Enhancing Black Before the adjustment Af ter the adjustment Black is not dar k enou gh, compared to t h e original. Black is enhanced and closely matched with the original hue. Explanation When a full -color original i s scanned, bl ack is not dark enough, c ompared to the original.
e-STUDIO281c/351c/451c Procedure * The adjustm ent is performed by the service technician only . (1) Enter adjust ment mode [ 05]. Change t h e values for c odes [1075 to 1077] to a djust the black density of a scanned-in image.
e-STUDIO281c/351c/451c 5.7 T o Scan the Original with the Desired Gradation Before the adjustment The image is scanned with natural gradation. (Defau lt scannin g) Af ter the adjustment Af ter the adjustment Gradatio n is decr eased. Grad ation is increas ed.
e-STUDIO281c/351c/451c Procedure * The adjustm ent is performed by the service technician only . (1) Enter adjustm ent mode [05]. Change t h e values for c odes [880 to 883] to adjust the gamma cur ve balance of the low-, m edium- and high-de nsity areas.
Company names and product n ames in this ma nual are the tr ademarks or regi stered trademarks of their respective companies..
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Toshiba E-STUDIO281C è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Toshiba E-STUDIO281C - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Toshiba E-STUDIO281C imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Toshiba E-STUDIO281C ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Toshiba E-STUDIO281C, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Toshiba E-STUDIO281C.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Toshiba E-STUDIO281C. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Toshiba E-STUDIO281C insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
